Merge pull request #5126 from ollama/mxyng/messages
update message processing
This commit is contained in:
Michael Yang
GitHub
commit
9bbddc37a7
7 changed files with 681 additions and 713 deletions
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@ -679,7 +679,7 @@ type CompletionRequest struct {
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Prompt string
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Format string
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Images []ImageData
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Options api.Options
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Options *api.Options
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}
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type CompletionResponse struct {
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@ -34,6 +34,8 @@ import (
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"github.com/ollama/ollama/version"
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)
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var errCapabilityCompletion = errors.New("completion")
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type Capability string
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const CapabilityCompletion = Capability("completion")
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@ -62,7 +64,10 @@ type Model struct {
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Template *template.Template
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}
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func (m *Model) Has(caps ...Capability) bool {
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// CheckCapabilities checks if the model has the specified capabilities returning an error describing
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// any missing or unknown capabilities
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func (m *Model) CheckCapabilities(caps ...Capability) error {
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var errs []error
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for _, cap := range caps {
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switch cap {
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case CapabilityCompletion:
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@ -81,15 +86,19 @@ func (m *Model) Has(caps ...Capability) bool {
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}
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if _, ok := ggml.KV()[fmt.Sprintf("%s.pooling_type", ggml.KV().Architecture())]; ok {
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return false
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errs = append(errs, errCapabilityCompletion)
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}
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default:
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slog.Error("unknown capability", "capability", cap)
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return false
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return fmt.Errorf("unknown capability: %s", cap)
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}
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}
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return true
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if err := errors.Join(errs...); err != nil {
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return fmt.Errorf("missing capabilities: %w", errors.Join(errs...))
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}
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return nil
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}
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func (m *Model) String() string {
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250
server/prompt.go
250
server/prompt.go
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@ -1,217 +1,83 @@
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package server
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import (
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"fmt"
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"bytes"
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"context"
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"log/slog"
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"strings"
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"text/template/parse"
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"slices"
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"github.com/ollama/ollama/api"
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"github.com/ollama/ollama/llm"
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"github.com/ollama/ollama/template"
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)
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// isResponseNode checks if the node contains .Response
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func isResponseNode(node *parse.ActionNode) bool {
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for _, cmd := range node.Pipe.Cmds {
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for _, arg := range cmd.Args {
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if fieldNode, ok := arg.(*parse.FieldNode); ok && len(fieldNode.Ident) > 0 {
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if fieldNode.Ident[0] == "Response" {
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return true
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}
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}
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type tokenizeFunc func(context.Context, string) ([]int, error)
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// chatPrompt accepts a list of messages and returns the prompt and images that should be used for the next chat turn.
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// chatPrompt truncates any messages that exceed the context window of the model, making sure to always include 1) the
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// latest message and 2) system messages
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func chatPrompt(ctx context.Context, m *Model, tokenize tokenizeFunc, opts *api.Options, msgs []api.Message) (prompt string, images []llm.ImageData, _ error) {
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// pull out any system messages which should always be included in the prompt
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var system []api.Message
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msgs = slices.DeleteFunc(msgs, func(m api.Message) bool {
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if m.Role == "system" {
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system = append(system, m)
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return true
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}
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}
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return false
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}
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// formatTemplateForResponse formats the template AST to:
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// 1. remove all nodes after the first .Response (if generate=true)
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// 2. add a .Response node to the end if it doesn't exist
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// TODO(jmorganca): this should recursively cut the template before the first .Response
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func formatTemplateForResponse(tmpl *template.Template, generate bool) {
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var found bool
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for i, node := range tmpl.Tree.Root.Nodes {
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if actionNode, ok := node.(*parse.ActionNode); ok {
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if isResponseNode(actionNode) {
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found = true
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if generate {
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tmpl.Tree.Root.Nodes = tmpl.Tree.Root.Nodes[:i+1]
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break
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}
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}
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return false
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})
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if len(system) == 0 && m.System != "" {
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// add model system prompt since it wasn't provided
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system = append(system, api.Message{Role: "system", Content: m.System})
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}
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// always include the last message
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n := len(msgs) - 1
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// in reverse, find all messages that fit into context window
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for i := n - 1; i >= 0; i-- {
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var b bytes.Buffer
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if err := m.Template.Execute(&b, template.Values{Messages: append(system, msgs[i:]...)}); err != nil {
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return "", nil, err
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}
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}
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if !found {
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// add the response node if it doesn't exist
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responseFieldNode := &parse.FieldNode{NodeType: parse.NodeField, Ident: []string{"Response"}}
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responsePipeNode := &parse.PipeNode{NodeType: parse.NodePipe, Cmds: []*parse.CommandNode{{NodeType: parse.NodeCommand, Args: []parse.Node{responseFieldNode}}}}
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responseActionNode := &parse.ActionNode{NodeType: parse.NodeAction, Pipe: responsePipeNode}
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tmpl.Tree.Root.Nodes = append(tmpl.Tree.Root.Nodes, responseActionNode)
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}
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}
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// Prompt renders a prompt from a template. If generate is set to true,
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// the response and parts of the template following it are not rendered
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func Prompt(tmpl *template.Template, system, prompt, response string, generate bool) (string, error) {
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formatTemplateForResponse(tmpl, generate)
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vars := map[string]any{
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"System": system,
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"Prompt": prompt,
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"Response": response,
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}
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var sb strings.Builder
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if err := tmpl.Execute(&sb, vars); err != nil {
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return "", err
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}
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return sb.String(), nil
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}
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func countTokens(tmpl *template.Template, system string, prompt string, response string, encode func(string) ([]int, error)) (int, error) {
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rendered, err := Prompt(tmpl, system, prompt, response, false)
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if err != nil {
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return 0, err
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}
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tokens, err := encode(rendered)
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if err != nil {
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slog.Error("failed to encode prompt", "err", err)
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return 0, err
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}
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return len(tokens), err
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}
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// ChatPrompt builds up a prompt from a series of messages, truncating based on context window size
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func ChatPrompt(tmpl *template.Template, messages []api.Message, window int, encode func(string) ([]int, error)) (string, error) {
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type prompt struct {
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System string
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Prompt string
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Response string
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images []int
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tokens int
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}
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var p prompt
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// iterate through messages to build up {system,user,response} prompts
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var imgId int
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var prompts []prompt
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for _, msg := range messages {
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switch strings.ToLower(msg.Role) {
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case "system":
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if p.System != "" || p.Prompt != "" || p.Response != "" {
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prompts = append(prompts, p)
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p = prompt{}
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}
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p.System = msg.Content
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case "user":
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if p.Prompt != "" || p.Response != "" {
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prompts = append(prompts, p)
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p = prompt{}
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}
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var sb strings.Builder
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for range msg.Images {
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fmt.Fprintf(&sb, "[img-%d] ", imgId)
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p.images = append(p.images, imgId)
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imgId += 1
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}
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sb.WriteString(msg.Content)
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p.Prompt = sb.String()
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case "assistant":
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if p.Response != "" {
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prompts = append(prompts, p)
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p = prompt{}
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}
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p.Response = msg.Content
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default:
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return "", fmt.Errorf("invalid role: %s, role must be one of [system, user, assistant]", msg.Role)
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}
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}
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// add final prompt
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if p.System != "" || p.Prompt != "" || p.Response != "" {
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prompts = append(prompts, p)
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}
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// calculate token lengths for each prompt, estimating 768 tokens per images
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for i, p := range prompts {
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tokens, err := countTokens(tmpl, p.System, p.Prompt, p.Response, encode)
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s, err := tokenize(ctx, b.String())
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if err != nil {
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return "", err
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return "", nil, err
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}
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prompts[i].tokens = tokens + len(prompts[i].images)*768
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}
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// truncate images and prompts starting from the beginning of the list
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// until either one prompt remains or the total tokens fits the context window
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// TODO (jmorganca): this doesn't account for the context window room required for the response
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for {
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var required int
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for _, p := range prompts {
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required += p.tokens
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c := len(s)
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if m.ProjectorPaths != nil {
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for _, m := range msgs[i:] {
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// images are represented as 768 sized embeddings
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// TODO: get embedding length from project metadata
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c += 768 * len(m.Images)
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}
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}
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required += 1 // for bos token
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if required <= window {
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slog.Debug("prompt now fits in context window", "required", required, "window", window)
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if c > opts.NumCtx {
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slog.Debug("truncating input messages which exceed context length", "truncated", len(msgs[i:]))
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break
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} else {
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n = i
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}
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prompt := &prompts[0]
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if len(prompt.images) > 1 {
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img := prompt.images[0]
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slog.Debug("prompt longer than context window, removing image", "id", img, "required", required, "window", window)
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prompt.images = prompt.images[1:]
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prompt.Prompt = strings.Replace(prompt.Prompt, fmt.Sprintf(" [img-%d]", img), "", 1)
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prompt.tokens -= 768
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continue
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}
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if len(prompts) > 1 {
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slog.Debug("required tokens longer than context window, removing first prompt", "prompt", prompts[0].tokens, "required", required, "window", window)
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system := prompt.System
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prompts = prompts[1:]
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if system != "" && prompts[0].System == "" {
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prompts[0].System = system
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tokens, err := countTokens(tmpl, prompts[0].System, prompts[0].Prompt, prompts[0].Response, encode)
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if err != nil {
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return "", err
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}
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prompts[0].tokens = tokens + len(prompts[0].images)*768
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}
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continue
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}
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// stop truncating if there's only one prompt left
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break
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}
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var sb strings.Builder
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for i, p := range prompts {
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// last prompt should leave the response unrendered (for completion)
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rendered, err := Prompt(tmpl, p.System, p.Prompt, p.Response, i == len(prompts)-1)
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if err != nil {
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return "", err
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}
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sb.WriteString(rendered)
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// truncate any messages that do not fit into the context window
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var b bytes.Buffer
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if err := m.Template.Execute(&b, template.Values{Messages: append(system, msgs[n:]...)}); err != nil {
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return "", nil, err
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}
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return sb.String(), nil
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for _, m := range msgs[n:] {
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for _, i := range m.Images {
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images = append(images, llm.ImageData{
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ID: len(images),
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Data: i,
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})
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}
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}
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return b.String(), images, nil
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}
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@ -1,6 +1,8 @@
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package server
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import (
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"bytes"
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"context"
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"strings"
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"testing"
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@ -8,208 +10,195 @@ import (
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"github.com/ollama/ollama/template"
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)
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func TestPrompt(t *testing.T) {
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tests := []struct {
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name string
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template string
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system string
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prompt string
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response string
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generate bool
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want string
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}{
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{
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name: "simple prompt",
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template: "[INST] {{ .System }} {{ .Prompt }} [/INST]",
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system: "You are a Wizard.",
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prompt: "What are the potion ingredients?",
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want: "[INST] You are a Wizard. What are the potion ingredients? [/INST]",
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},
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{
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name: "implicit response",
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template: "[INST] {{ .System }} {{ .Prompt }} [/INST]",
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system: "You are a Wizard.",
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prompt: "What are the potion ingredients?",
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response: "I don't know.",
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want: "[INST] You are a Wizard. What are the potion ingredients? [/INST]I don't know.",
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},
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{
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name: "response",
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template: "[INST] {{ .System }} {{ .Prompt }} [/INST] {{ .Response }}",
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system: "You are a Wizard.",
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prompt: "What are the potion ingredients?",
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response: "I don't know.",
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want: "[INST] You are a Wizard. What are the potion ingredients? [/INST] I don't know.",
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},
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{
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name: "cut",
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template: "<system>{{ .System }}</system><user>{{ .Prompt }}</user><assistant>{{ .Response }}</assistant>",
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system: "You are a Wizard.",
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prompt: "What are the potion ingredients?",
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response: "I don't know.",
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generate: true,
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want: "<system>You are a Wizard.</system><user>What are the potion ingredients?</user><assistant>I don't know.",
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},
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{
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name: "nocut",
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template: "<system>{{ .System }}</system><user>{{ .Prompt }}</user><assistant>{{ .Response }}</assistant>",
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system: "You are a Wizard.",
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prompt: "What are the potion ingredients?",
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response: "I don't know.",
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want: "<system>You are a Wizard.</system><user>What are the potion ingredients?</user><assistant>I don't know.</assistant>",
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},
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func tokenize(_ context.Context, s string) (tokens []int, err error) {
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for range strings.Fields(s) {
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tokens = append(tokens, len(tokens))
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}
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for _, tc := range tests {
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t.Run(tc.name, func(t *testing.T) {
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tmpl, err := template.Parse(tc.template)
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if err != nil {
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t.Fatal(err)
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}
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got, err := Prompt(tmpl, tc.system, tc.prompt, tc.response, tc.generate)
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if err != nil {
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t.Errorf("error = %v", err)
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}
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if got != tc.want {
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t.Errorf("got = %v, want %v", got, tc.want)
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}
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})
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}
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return
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}
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func TestChatPrompt(t *testing.T) {
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tests := []struct {
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name string
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template string
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messages []api.Message
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window int
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want string
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type expect struct {
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prompt string
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images [][]byte
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}
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cases := []struct {
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name string
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limit int
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msgs []api.Message
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expect
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}{
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{
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name: "simple prompt",
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template: "[INST] {{ .Prompt }} [/INST]",
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messages: []api.Message{
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{Role: "user", Content: "Hello"},
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name: "messages",
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limit: 64,
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msgs: []api.Message{
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{Role: "user", Content: "You're a test, Harry!"},
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{Role: "assistant", Content: "I-I'm a what?"},
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{Role: "user", Content: "A test. And a thumping good one at that, I'd wager."},
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},
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expect: expect{
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prompt: "You're a test, Harry! I-I'm a what? A test. And a thumping good one at that, I'd wager. ",
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},
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window: 1024,
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want: "[INST] Hello [/INST]",
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},
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{
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name: "with system message",
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template: "[INST] {{ if .System }}<<SYS>>{{ .System }}<</SYS>> {{ end }}{{ .Prompt }} [/INST]",
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messages: []api.Message{
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{Role: "system", Content: "You are a Wizard."},
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{Role: "user", Content: "Hello"},
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name: "truncate messages",
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limit: 1,
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msgs: []api.Message{
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{Role: "user", Content: "You're a test, Harry!"},
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{Role: "assistant", Content: "I-I'm a what?"},
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{Role: "user", Content: "A test. And a thumping good one at that, I'd wager."},
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},
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expect: expect{
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prompt: "A test. And a thumping good one at that, I'd wager. ",
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},
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window: 1024,
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want: "[INST] <<SYS>>You are a Wizard.<</SYS>> Hello [/INST]",
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},
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{
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name: "with response",
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template: "[INST] {{ if .System }}<<SYS>>{{ .System }}<</SYS>> {{ end }}{{ .Prompt }} [/INST] {{ .Response }}",
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messages: []api.Message{
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{Role: "system", Content: "You are a Wizard."},
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{Role: "user", Content: "Hello"},
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{Role: "assistant", Content: "I am?"},
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name: "truncate messages with image",
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limit: 64,
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msgs: []api.Message{
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{Role: "user", Content: "You're a test, Harry!"},
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{Role: "assistant", Content: "I-I'm a what?"},
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||||
{Role: "user", Content: "A test. And a thumping good one at that, I'd wager.", Images: []api.ImageData{[]byte("something")}},
|
||||
},
|
||||
expect: expect{
|
||||
prompt: "[img-0] A test. And a thumping good one at that, I'd wager. ",
|
||||
images: [][]byte{
|
||||
[]byte("something"),
|
||||
},
|
||||
},
|
||||
window: 1024,
|
||||
want: "[INST] <<SYS>>You are a Wizard.<</SYS>> Hello [/INST] I am?",
|
||||
},
|
||||
{
|
||||
name: "with implicit response",
|
||||
template: "[INST] {{ if .System }}<<SYS>>{{ .System }}<</SYS>> {{ end }}{{ .Prompt }} [/INST]",
|
||||
messages: []api.Message{
|
||||
{Role: "system", Content: "You are a Wizard."},
|
||||
{Role: "user", Content: "Hello"},
|
||||
{Role: "assistant", Content: "I am?"},
|
||||
name: "truncate messages with images",
|
||||
limit: 64,
|
||||
msgs: []api.Message{
|
||||
{Role: "user", Content: "You're a test, Harry!", Images: []api.ImageData{[]byte("something")}},
|
||||
{Role: "assistant", Content: "I-I'm a what?"},
|
||||
{Role: "user", Content: "A test. And a thumping good one at that, I'd wager.", Images: []api.ImageData{[]byte("somethingelse")}},
|
||||
},
|
||||
expect: expect{
|
||||
prompt: "[img-0] A test. And a thumping good one at that, I'd wager. ",
|
||||
images: [][]byte{
|
||||
[]byte("somethingelse"),
|
||||
},
|
||||
},
|
||||
window: 1024,
|
||||
want: "[INST] <<SYS>>You are a Wizard.<</SYS>> Hello [/INST]I am?",
|
||||
},
|
||||
{
|
||||
name: "with conversation",
|
||||
template: "[INST] {{ if .System }}<<SYS>>{{ .System }}<</SYS>> {{ end }}{{ .Prompt }} [/INST] {{ .Response }} ",
|
||||
messages: []api.Message{
|
||||
{Role: "system", Content: "You are a Wizard."},
|
||||
{Role: "user", Content: "What are the potion ingredients?"},
|
||||
{Role: "assistant", Content: "sugar"},
|
||||
{Role: "user", Content: "Anything else?"},
|
||||
name: "messages with images",
|
||||
limit: 2048,
|
||||
msgs: []api.Message{
|
||||
{Role: "user", Content: "You're a test, Harry!", Images: []api.ImageData{[]byte("something")}},
|
||||
{Role: "assistant", Content: "I-I'm a what?"},
|
||||
{Role: "user", Content: "A test. And a thumping good one at that, I'd wager.", Images: []api.ImageData{[]byte("somethingelse")}},
|
||||
},
|
||||
expect: expect{
|
||||
prompt: "[img-0] You're a test, Harry! I-I'm a what? [img-1] A test. And a thumping good one at that, I'd wager. ",
|
||||
images: [][]byte{
|
||||
[]byte("something"),
|
||||
[]byte("somethingelse"),
|
||||
},
|
||||
},
|
||||
window: 1024,
|
||||
want: "[INST] <<SYS>>You are a Wizard.<</SYS>> What are the potion ingredients? [/INST] sugar [INST] Anything else? [/INST] ",
|
||||
},
|
||||
{
|
||||
name: "with truncation",
|
||||
template: "{{ .System }} {{ .Prompt }} {{ .Response }} ",
|
||||
messages: []api.Message{
|
||||
{Role: "system", Content: "You are a Wizard."},
|
||||
{Role: "user", Content: "Hello"},
|
||||
{Role: "assistant", Content: "I am?"},
|
||||
{Role: "user", Content: "Why is the sky blue?"},
|
||||
{Role: "assistant", Content: "The sky is blue from rayleigh scattering"},
|
||||
name: "message with image tag",
|
||||
limit: 2048,
|
||||
msgs: []api.Message{
|
||||
{Role: "user", Content: "You're a test, Harry! [img]", Images: []api.ImageData{[]byte("something")}},
|
||||
{Role: "assistant", Content: "I-I'm a what?"},
|
||||
{Role: "user", Content: "A test. And a thumping good one at that, I'd wager.", Images: []api.ImageData{[]byte("somethingelse")}},
|
||||
},
|
||||
expect: expect{
|
||||
prompt: "You're a test, Harry! [img-0] I-I'm a what? [img-1] A test. And a thumping good one at that, I'd wager. ",
|
||||
images: [][]byte{
|
||||
[]byte("something"),
|
||||
[]byte("somethingelse"),
|
||||
},
|
||||
},
|
||||
window: 10,
|
||||
want: "You are a Wizard. Why is the sky blue? The sky is blue from rayleigh scattering",
|
||||
},
|
||||
{
|
||||
name: "images",
|
||||
template: "{{ .System }} {{ .Prompt }}",
|
||||
messages: []api.Message{
|
||||
{Role: "system", Content: "You are a Wizard."},
|
||||
{Role: "user", Content: "Hello", Images: []api.ImageData{[]byte("base64")}},
|
||||
name: "messages with interleaved images",
|
||||
limit: 2048,
|
||||
msgs: []api.Message{
|
||||
{Role: "user", Content: "You're a test, Harry!"},
|
||||
{Role: "user", Images: []api.ImageData{[]byte("something")}},
|
||||
{Role: "user", Images: []api.ImageData{[]byte("somethingelse")}},
|
||||
{Role: "assistant", Content: "I-I'm a what?"},
|
||||
{Role: "user", Content: "A test. And a thumping good one at that, I'd wager."},
|
||||
},
|
||||
expect: expect{
|
||||
prompt: "You're a test, Harry!\n\n[img-0]\n\n[img-1] I-I'm a what? A test. And a thumping good one at that, I'd wager. ",
|
||||
images: [][]byte{
|
||||
[]byte("something"),
|
||||
[]byte("somethingelse"),
|
||||
},
|
||||
},
|
||||
window: 1024,
|
||||
want: "You are a Wizard. [img-0] Hello",
|
||||
},
|
||||
{
|
||||
name: "images truncated",
|
||||
template: "{{ .System }} {{ .Prompt }}",
|
||||
messages: []api.Message{
|
||||
{Role: "system", Content: "You are a Wizard."},
|
||||
{Role: "user", Content: "Hello", Images: []api.ImageData{[]byte("img1"), []byte("img2")}},
|
||||
name: "truncate message with interleaved images",
|
||||
limit: 1024,
|
||||
msgs: []api.Message{
|
||||
{Role: "user", Content: "You're a test, Harry!"},
|
||||
{Role: "user", Images: []api.ImageData{[]byte("something")}},
|
||||
{Role: "user", Images: []api.ImageData{[]byte("somethingelse")}},
|
||||
{Role: "assistant", Content: "I-I'm a what?"},
|
||||
{Role: "user", Content: "A test. And a thumping good one at that, I'd wager."},
|
||||
},
|
||||
expect: expect{
|
||||
prompt: "[img-0] I-I'm a what? A test. And a thumping good one at that, I'd wager. ",
|
||||
images: [][]byte{
|
||||
[]byte("somethingelse"),
|
||||
},
|
||||
},
|
||||
window: 1024,
|
||||
want: "You are a Wizard. [img-0] [img-1] Hello",
|
||||
},
|
||||
{
|
||||
name: "empty list",
|
||||
template: "{{ .System }} {{ .Prompt }}",
|
||||
messages: []api.Message{},
|
||||
window: 1024,
|
||||
want: "",
|
||||
},
|
||||
{
|
||||
name: "empty prompt",
|
||||
template: "[INST] {{ if .System }}<<SYS>>{{ .System }}<</SYS>> {{ end }}{{ .Prompt }} [/INST] {{ .Response }} ",
|
||||
messages: []api.Message{
|
||||
{Role: "user", Content: ""},
|
||||
name: "message with system prompt",
|
||||
limit: 2048,
|
||||
msgs: []api.Message{
|
||||
{Role: "system", Content: "You are the Test Who Lived."},
|
||||
{Role: "user", Content: "You're a test, Harry!"},
|
||||
{Role: "assistant", Content: "I-I'm a what?"},
|
||||
{Role: "user", Content: "A test. And a thumping good one at that, I'd wager."},
|
||||
},
|
||||
expect: expect{
|
||||
prompt: "You're a test, Harry! I-I'm a what? You are the Test Who Lived. A test. And a thumping good one at that, I'd wager. ",
|
||||
},
|
||||
window: 1024,
|
||||
want: "",
|
||||
},
|
||||
}
|
||||
|
||||
encode := func(s string) ([]int, error) {
|
||||
words := strings.Fields(s)
|
||||
return make([]int, len(words)), nil
|
||||
tmpl, err := template.Parse(`
|
||||
{{- if .System }}{{ .System }} {{ end }}
|
||||
{{- if .Prompt }}{{ .Prompt }} {{ end }}
|
||||
{{- if .Response }}{{ .Response }} {{ end }}`)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
for _, tc := range tests {
|
||||
t.Run(tc.name, func(t *testing.T) {
|
||||
tmpl, err := template.Parse(tc.template)
|
||||
for _, tt := range cases {
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
model := Model{Template: tmpl, ProjectorPaths: []string{"vision"}}
|
||||
opts := api.Options{Runner: api.Runner{NumCtx: tt.limit}}
|
||||
prompt, images, err := chatPrompt(context.TODO(), &model, tokenize, &opts, tt.msgs)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
got, err := ChatPrompt(tmpl, tc.messages, tc.window, encode)
|
||||
if err != nil {
|
||||
t.Errorf("error = %v", err)
|
||||
if tt.prompt != prompt {
|
||||
t.Errorf("expected %q, got %q", tt.prompt, prompt)
|
||||
}
|
||||
|
||||
if got != tc.want {
|
||||
t.Errorf("got: %q, want: %q", got, tc.want)
|
||||
if len(images) != len(tt.images) {
|
||||
t.Fatalf("expected %d images, got %d", len(tt.images), len(images))
|
||||
}
|
||||
|
||||
for i := range images {
|
||||
if images[i].ID != i {
|
||||
t.Errorf("expected ID %d, got %d", i, images[i].ID)
|
||||
}
|
||||
|
||||
if !bytes.Equal(images[i].Data, tt.images[i]) {
|
||||
t.Errorf("expected %q, got %q", tt.images[i], images[i])
|
||||
}
|
||||
}
|
||||
})
|
||||
}
|
||||
|
|
|
|||
498
server/routes.go
498
server/routes.go
|
|
@ -1,13 +1,13 @@
|
|||
package server
|
||||
|
||||
import (
|
||||
"bytes"
|
||||
"cmp"
|
||||
"context"
|
||||
"encoding/json"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"io/fs"
|
||||
"log/slog"
|
||||
"net"
|
||||
"net/http"
|
||||
|
|
@ -54,6 +54,8 @@ func init() {
|
|||
gin.SetMode(mode)
|
||||
}
|
||||
|
||||
var errRequired = errors.New("is required")
|
||||
|
||||
func modelOptions(model *Model, requestOpts map[string]interface{}) (api.Options, error) {
|
||||
opts := api.DefaultOptions()
|
||||
if err := opts.FromMap(model.Options); err != nil {
|
||||
|
|
@ -67,163 +69,140 @@ func modelOptions(model *Model, requestOpts map[string]interface{}) (api.Options
|
|||
return opts, nil
|
||||
}
|
||||
|
||||
func isSupportedImageType(image []byte) bool {
|
||||
contentType := http.DetectContentType(image)
|
||||
allowedTypes := []string{"image/jpeg", "image/jpg", "image/png"}
|
||||
return slices.Contains(allowedTypes, contentType)
|
||||
// scheduleRunner schedules a runner after validating inputs such as capabilities and model options.
|
||||
// It returns the allocated runner, model instance, and consolidated options if successful and error otherwise.
|
||||
func (s *Server) scheduleRunner(ctx context.Context, name string, caps []Capability, requestOpts map[string]any, keepAlive *api.Duration) (llm.LlamaServer, *Model, *api.Options, error) {
|
||||
if name == "" {
|
||||
return nil, nil, nil, fmt.Errorf("model %w", errRequired)
|
||||
}
|
||||
|
||||
model, err := GetModel(name)
|
||||
if err != nil {
|
||||
return nil, nil, nil, err
|
||||
}
|
||||
|
||||
if err := model.CheckCapabilities(caps...); err != nil {
|
||||
return nil, nil, nil, fmt.Errorf("%s %w", name, err)
|
||||
}
|
||||
|
||||
opts, err := modelOptions(model, requestOpts)
|
||||
if err != nil {
|
||||
return nil, nil, nil, err
|
||||
}
|
||||
|
||||
runnerCh, errCh := s.sched.GetRunner(ctx, model, opts, keepAlive)
|
||||
var runner *runnerRef
|
||||
select {
|
||||
case runner = <-runnerCh:
|
||||
case err = <-errCh:
|
||||
return nil, nil, nil, err
|
||||
}
|
||||
|
||||
return runner.llama, model, &opts, nil
|
||||
}
|
||||
|
||||
func (s *Server) GenerateHandler(c *gin.Context) {
|
||||
checkpointStart := time.Now()
|
||||
var req api.GenerateRequest
|
||||
err := c.ShouldBindJSON(&req)
|
||||
|
||||
switch {
|
||||
case errors.Is(err, io.EOF):
|
||||
if err := c.ShouldBindJSON(&req); errors.Is(err, io.EOF) {
|
||||
c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": "missing request body"})
|
||||
return
|
||||
case err != nil:
|
||||
} else if err != nil {
|
||||
c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
// validate the request
|
||||
switch {
|
||||
case req.Model == "":
|
||||
c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": "model is required"})
|
||||
if req.Format != "" && req.Format != "json" {
|
||||
c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": "format must be empty or \"json\""})
|
||||
return
|
||||
case len(req.Format) > 0 && req.Format != "json":
|
||||
c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": "format must be json"})
|
||||
return
|
||||
case req.Raw && (req.Template != "" || req.System != "" || len(req.Context) > 0):
|
||||
} else if req.Raw && (req.Template != "" || req.System != "" || len(req.Context) > 0) {
|
||||
c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": "raw mode does not support template, system, or context"})
|
||||
return
|
||||
}
|
||||
|
||||
for _, img := range req.Images {
|
||||
if !isSupportedImageType(img) {
|
||||
c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": "unsupported image format"})
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
model, err := GetModel(req.Model)
|
||||
if err != nil {
|
||||
var pErr *fs.PathError
|
||||
if errors.As(err, &pErr) {
|
||||
c.JSON(http.StatusNotFound, gin.H{"error": fmt.Sprintf("model '%s' not found, try pulling it first", req.Model)})
|
||||
return
|
||||
}
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
||||
caps := []Capability{CapabilityCompletion}
|
||||
r, m, opts, err := s.scheduleRunner(c.Request.Context(), req.Model, caps, req.Options, req.KeepAlive)
|
||||
if errors.Is(err, errCapabilityCompletion) {
|
||||
c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("%q does not support generate", req.Model)})
|
||||
return
|
||||
} else if err != nil {
|
||||
handleScheduleError(c, req.Model, err)
|
||||
return
|
||||
}
|
||||
|
||||
if !model.Has(CapabilityCompletion) {
|
||||
c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("%s does not support generate", req.Model)})
|
||||
return
|
||||
}
|
||||
|
||||
opts, err := modelOptions(model, req.Options)
|
||||
if err != nil {
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
rCh, eCh := s.sched.GetRunner(c.Request.Context(), model, opts, req.KeepAlive)
|
||||
var runner *runnerRef
|
||||
select {
|
||||
case runner = <-rCh:
|
||||
case err = <-eCh:
|
||||
handleErrorResponse(c, err)
|
||||
return
|
||||
}
|
||||
|
||||
// an empty request loads the model
|
||||
// note: for a short while template was used in lieu
|
||||
// of `raw` mode so we need to check for it too
|
||||
if req.Prompt == "" && req.Template == "" && req.System == "" {
|
||||
if req.Prompt == "" {
|
||||
c.JSON(http.StatusOK, api.GenerateResponse{
|
||||
CreatedAt: time.Now().UTC(),
|
||||
Model: req.Model,
|
||||
CreatedAt: time.Now().UTC(),
|
||||
Done: true,
|
||||
DoneReason: "load",
|
||||
})
|
||||
return
|
||||
}
|
||||
|
||||
tmpl, err := template.Parse(req.Template)
|
||||
if err != nil {
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
||||
return
|
||||
images := make([]llm.ImageData, len(req.Images))
|
||||
for i := range req.Images {
|
||||
images[i] = llm.ImageData{ID: i, Data: req.Images[i]}
|
||||
}
|
||||
|
||||
checkpointLoaded := time.Now()
|
||||
|
||||
var prompt string
|
||||
switch {
|
||||
case req.Raw:
|
||||
prompt = req.Prompt
|
||||
case req.Prompt != "":
|
||||
if req.Template == "" {
|
||||
tmpl = model.Template
|
||||
prompt := req.Prompt
|
||||
if !req.Raw {
|
||||
var msgs []api.Message
|
||||
if req.System != "" {
|
||||
msgs = append(msgs, api.Message{Role: "system", Content: req.System})
|
||||
} else if m.System != "" {
|
||||
msgs = append(msgs, api.Message{Role: "system", Content: m.System})
|
||||
}
|
||||
|
||||
if req.System == "" {
|
||||
req.System = model.System
|
||||
for _, i := range images {
|
||||
msgs = append(msgs, api.Message{Role: "user", Content: fmt.Sprintf("[img-%d]", i.ID)})
|
||||
}
|
||||
|
||||
slog.Debug("generate handler", "prompt", req.Prompt)
|
||||
slog.Debug("generate handler", "template", req.Template)
|
||||
slog.Debug("generate handler", "system", req.System)
|
||||
msgs = append(msgs, api.Message{Role: "user", Content: req.Prompt})
|
||||
|
||||
var sb strings.Builder
|
||||
for i := range req.Images {
|
||||
fmt.Fprintf(&sb, "[img-%d] ", i)
|
||||
tmpl := m.Template
|
||||
if req.Template != "" {
|
||||
tmpl, err = template.Parse(req.Template)
|
||||
if err != nil {
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
sb.WriteString(req.Prompt)
|
||||
|
||||
p, err := Prompt(tmpl, req.System, sb.String(), "", true)
|
||||
if err != nil {
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
sb.Reset()
|
||||
var b bytes.Buffer
|
||||
if req.Context != nil {
|
||||
prev, err := runner.llama.Detokenize(c.Request.Context(), req.Context)
|
||||
s, err := r.Detokenize(c.Request.Context(), req.Context)
|
||||
if err != nil {
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
sb.WriteString(prev)
|
||||
b.WriteString(s)
|
||||
}
|
||||
|
||||
sb.WriteString(p)
|
||||
if err := tmpl.Execute(&b, template.Values{Messages: msgs}); err != nil {
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
prompt = sb.String()
|
||||
prompt = b.String()
|
||||
}
|
||||
|
||||
slog.Debug("generate handler", "prompt", prompt)
|
||||
slog.Debug("generate request", "prompt", prompt, "images", images)
|
||||
|
||||
ch := make(chan any)
|
||||
var generated strings.Builder
|
||||
go func() {
|
||||
defer close(ch)
|
||||
|
||||
fn := func(r llm.CompletionResponse) {
|
||||
// Build up the full response
|
||||
if _, err := generated.WriteString(r.Content); err != nil {
|
||||
ch <- gin.H{"error": err.Error()}
|
||||
return
|
||||
}
|
||||
|
||||
resp := api.GenerateResponse{
|
||||
if err := r.Completion(c.Request.Context(), llm.CompletionRequest{
|
||||
Prompt: prompt,
|
||||
Images: images,
|
||||
Format: req.Format,
|
||||
Options: opts,
|
||||
}, func(r llm.CompletionResponse) {
|
||||
ch <- api.GenerateResponse{
|
||||
Model: req.Model,
|
||||
CreatedAt: time.Now().UTC(),
|
||||
Done: r.Done,
|
||||
Response: r.Content,
|
||||
Done: r.Done,
|
||||
DoneReason: r.DoneReason,
|
||||
Metrics: api.Metrics{
|
||||
PromptEvalCount: r.PromptEvalCount,
|
||||
|
|
@ -232,77 +211,35 @@ func (s *Server) GenerateHandler(c *gin.Context) {
|
|||
EvalDuration: r.EvalDuration,
|
||||
},
|
||||
}
|
||||
|
||||
if r.Done {
|
||||
resp.TotalDuration = time.Since(checkpointStart)
|
||||
resp.LoadDuration = checkpointLoaded.Sub(checkpointStart)
|
||||
|
||||
if !req.Raw {
|
||||
p, err := Prompt(tmpl, req.System, req.Prompt, generated.String(), false)
|
||||
if err != nil {
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
// TODO (jmorganca): encode() should not strip special tokens
|
||||
tokens, err := runner.llama.Tokenize(c.Request.Context(), p)
|
||||
if err != nil {
|
||||
ch <- gin.H{"error": err.Error()}
|
||||
return
|
||||
}
|
||||
|
||||
resp.Context = append(req.Context, tokens...)
|
||||
}
|
||||
}
|
||||
|
||||
ch <- resp
|
||||
}
|
||||
|
||||
var images []llm.ImageData
|
||||
for i := range req.Images {
|
||||
images = append(images, llm.ImageData{
|
||||
ID: i,
|
||||
Data: req.Images[i],
|
||||
})
|
||||
}
|
||||
|
||||
// Start prediction
|
||||
req := llm.CompletionRequest{
|
||||
Prompt: prompt,
|
||||
Format: req.Format,
|
||||
Images: images,
|
||||
Options: opts,
|
||||
}
|
||||
if err := runner.llama.Completion(c.Request.Context(), req, fn); err != nil {
|
||||
}); err != nil {
|
||||
ch <- gin.H{"error": err.Error()}
|
||||
}
|
||||
}()
|
||||
|
||||
if req.Stream != nil && !*req.Stream {
|
||||
// Accumulate responses into the final response
|
||||
var final api.GenerateResponse
|
||||
var r api.GenerateResponse
|
||||
var sb strings.Builder
|
||||
for resp := range ch {
|
||||
switch r := resp.(type) {
|
||||
for rr := range ch {
|
||||
switch t := rr.(type) {
|
||||
case api.GenerateResponse:
|
||||
sb.WriteString(r.Response)
|
||||
final = r
|
||||
sb.WriteString(t.Response)
|
||||
r = t
|
||||
case gin.H:
|
||||
if errorMsg, ok := r["error"].(string); ok {
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": errorMsg})
|
||||
return
|
||||
} else {
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": "unexpected error format in response"})
|
||||
return
|
||||
msg, ok := t["error"].(string)
|
||||
if !ok {
|
||||
msg = "unexpected error format in response"
|
||||
}
|
||||
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": msg})
|
||||
return
|
||||
default:
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": "unexpected error"})
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": "unexpected response"})
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
final.Response = sb.String()
|
||||
c.JSON(http.StatusOK, final)
|
||||
r.Response = sb.String()
|
||||
c.JSON(http.StatusOK, r)
|
||||
return
|
||||
}
|
||||
|
||||
|
|
@ -311,44 +248,17 @@ func (s *Server) GenerateHandler(c *gin.Context) {
|
|||
|
||||
func (s *Server) EmbeddingsHandler(c *gin.Context) {
|
||||
var req api.EmbeddingRequest
|
||||
err := c.ShouldBindJSON(&req)
|
||||
switch {
|
||||
case errors.Is(err, io.EOF):
|
||||
if err := c.ShouldBindJSON(&req); errors.Is(err, io.EOF) {
|
||||
c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": "missing request body"})
|
||||
return
|
||||
case err != nil:
|
||||
} else if err != nil {
|
||||
c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
if req.Model == "" {
|
||||
c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": "model is required"})
|
||||
return
|
||||
}
|
||||
|
||||
model, err := GetModel(req.Model)
|
||||
r, _, _, err := s.scheduleRunner(c.Request.Context(), req.Model, []Capability{}, req.Options, req.KeepAlive)
|
||||
if err != nil {
|
||||
var pErr *fs.PathError
|
||||
if errors.As(err, &pErr) {
|
||||
c.JSON(http.StatusNotFound, gin.H{"error": fmt.Sprintf("model '%s' not found, try pulling it first", req.Model)})
|
||||
return
|
||||
}
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
opts, err := modelOptions(model, req.Options)
|
||||
if err != nil {
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
rCh, eCh := s.sched.GetRunner(c.Request.Context(), model, opts, req.KeepAlive)
|
||||
var runner *runnerRef
|
||||
select {
|
||||
case runner = <-rCh:
|
||||
case err = <-eCh:
|
||||
handleErrorResponse(c, err)
|
||||
handleScheduleError(c, req.Model, err)
|
||||
return
|
||||
}
|
||||
|
||||
|
|
@ -358,17 +268,14 @@ func (s *Server) EmbeddingsHandler(c *gin.Context) {
|
|||
return
|
||||
}
|
||||
|
||||
embedding, err := runner.llama.Embedding(c.Request.Context(), req.Prompt)
|
||||
embedding, err := r.Embedding(c.Request.Context(), req.Prompt)
|
||||
if err != nil {
|
||||
slog.Info(fmt.Sprintf("embedding generation failed: %v", err))
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": "failed to generate embedding"})
|
||||
return
|
||||
}
|
||||
|
||||
resp := api.EmbeddingResponse{
|
||||
Embedding: embedding,
|
||||
}
|
||||
c.JSON(http.StatusOK, resp)
|
||||
c.JSON(http.StatusOK, api.EmbeddingResponse{Embedding: embedding})
|
||||
}
|
||||
|
||||
func (s *Server) PullModelHandler(c *gin.Context) {
|
||||
|
|
@ -649,9 +556,9 @@ func GetModelInfo(req api.ShowRequest) (*api.ShowResponse, error) {
|
|||
}
|
||||
}
|
||||
|
||||
msgs := make([]api.Message, 0)
|
||||
for _, msg := range m.Messages {
|
||||
msgs = append(msgs, api.Message{Role: msg.Role, Content: msg.Content})
|
||||
msgs := make([]api.Message, len(m.Messages))
|
||||
for i, msg := range m.Messages {
|
||||
msgs[i] = api.Message{Role: msg.Role, Content: msg.Content}
|
||||
}
|
||||
|
||||
n := model.ParseName(req.Model)
|
||||
|
|
@ -1214,132 +1121,55 @@ func (s *Server) ProcessHandler(c *gin.Context) {
|
|||
c.JSON(http.StatusOK, api.ProcessResponse{Models: models})
|
||||
}
|
||||
|
||||
// ChatPrompt builds up a prompt from a series of messages for the currently `loaded` model
|
||||
func chatPrompt(ctx context.Context, runner *runnerRef, template *template.Template, messages []api.Message, numCtx int) (string, error) {
|
||||
encode := func(s string) ([]int, error) {
|
||||
return runner.llama.Tokenize(ctx, s)
|
||||
}
|
||||
|
||||
prompt, err := ChatPrompt(template, messages, numCtx, encode)
|
||||
if err != nil {
|
||||
return "", err
|
||||
}
|
||||
|
||||
return prompt, nil
|
||||
}
|
||||
|
||||
func (s *Server) ChatHandler(c *gin.Context) {
|
||||
checkpointStart := time.Now()
|
||||
|
||||
var req api.ChatRequest
|
||||
err := c.ShouldBindJSON(&req)
|
||||
switch {
|
||||
case errors.Is(err, io.EOF):
|
||||
if err := c.ShouldBindJSON(&req); errors.Is(err, io.EOF) {
|
||||
c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": "missing request body"})
|
||||
return
|
||||
case err != nil:
|
||||
} else if err != nil {
|
||||
c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
// validate the request
|
||||
switch {
|
||||
case req.Model == "":
|
||||
c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": "model is required"})
|
||||
caps := []Capability{CapabilityCompletion}
|
||||
r, m, opts, err := s.scheduleRunner(c.Request.Context(), req.Model, caps, req.Options, req.KeepAlive)
|
||||
if errors.Is(err, errCapabilityCompletion) {
|
||||
c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("%q does not support chat", req.Model)})
|
||||
return
|
||||
case len(req.Format) > 0 && req.Format != "json":
|
||||
c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": "format must be json"})
|
||||
} else if err != nil {
|
||||
handleScheduleError(c, req.Model, err)
|
||||
return
|
||||
}
|
||||
|
||||
model, err := GetModel(req.Model)
|
||||
if err != nil {
|
||||
var pErr *fs.PathError
|
||||
if errors.As(err, &pErr) {
|
||||
c.JSON(http.StatusNotFound, gin.H{"error": fmt.Sprintf("model '%s' not found, try pulling it first", req.Model)})
|
||||
return
|
||||
}
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
if !model.Has(CapabilityCompletion) {
|
||||
c.JSON(http.StatusBadRequest, gin.H{"error": fmt.Sprintf("%s does not support chat", req.Model)})
|
||||
return
|
||||
}
|
||||
|
||||
opts, err := modelOptions(model, req.Options)
|
||||
if err != nil {
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
rCh, eCh := s.sched.GetRunner(c.Request.Context(), model, opts, req.KeepAlive)
|
||||
var runner *runnerRef
|
||||
select {
|
||||
case runner = <-rCh:
|
||||
case err = <-eCh:
|
||||
handleErrorResponse(c, err)
|
||||
return
|
||||
}
|
||||
|
||||
checkpointLoaded := time.Now()
|
||||
|
||||
// if the first message is not a system message, then add the model's default system message
|
||||
if len(req.Messages) > 0 && req.Messages[0].Role != "system" {
|
||||
req.Messages = append([]api.Message{
|
||||
{
|
||||
Role: "system",
|
||||
Content: model.System,
|
||||
},
|
||||
}, req.Messages...)
|
||||
}
|
||||
|
||||
prompt, err := chatPrompt(c.Request.Context(), runner, model.Template, req.Messages, opts.NumCtx)
|
||||
if err != nil {
|
||||
c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
// an empty request loads the model
|
||||
if len(req.Messages) == 0 || prompt == "" {
|
||||
resp := api.ChatResponse{
|
||||
CreatedAt: time.Now().UTC(),
|
||||
if len(req.Messages) == 0 {
|
||||
c.JSON(http.StatusOK, api.ChatResponse{
|
||||
Model: req.Model,
|
||||
CreatedAt: time.Now().UTC(),
|
||||
Message: api.Message{Role: "assistant"},
|
||||
Done: true,
|
||||
DoneReason: "load",
|
||||
Message: api.Message{Role: "assistant"},
|
||||
}
|
||||
c.JSON(http.StatusOK, resp)
|
||||
})
|
||||
return
|
||||
}
|
||||
|
||||
// only send images that are in the prompt
|
||||
var i int
|
||||
var images []llm.ImageData
|
||||
for _, m := range req.Messages {
|
||||
for _, img := range m.Images {
|
||||
if !isSupportedImageType(img) {
|
||||
c.AbortWithStatusJSON(http.StatusBadRequest, gin.H{"error": "unsupported image format"})
|
||||
return
|
||||
}
|
||||
|
||||
if strings.Contains(prompt, fmt.Sprintf("[img-%d]", i)) {
|
||||
images = append(images, llm.ImageData{Data: img, ID: i})
|
||||
}
|
||||
i += 1
|
||||
}
|
||||
prompt, images, err := chatPrompt(c.Request.Context(), m, r.Tokenize, opts, req.Messages)
|
||||
if err != nil {
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
||||
return
|
||||
}
|
||||
|
||||
slog.Debug("chat handler", "prompt", prompt, "images", len(images))
|
||||
slog.Debug("chat request", "images", len(images), "prompt", prompt)
|
||||
|
||||
ch := make(chan any)
|
||||
|
||||
go func() {
|
||||
defer close(ch)
|
||||
|
||||
fn := func(r llm.CompletionResponse) {
|
||||
resp := api.ChatResponse{
|
||||
if err := r.Completion(c.Request.Context(), llm.CompletionRequest{
|
||||
Prompt: prompt,
|
||||
Images: images,
|
||||
Format: req.Format,
|
||||
Options: opts,
|
||||
}, func(r llm.CompletionResponse) {
|
||||
ch <- api.ChatResponse{
|
||||
Model: req.Model,
|
||||
CreatedAt: time.Now().UTC(),
|
||||
Message: api.Message{Role: "assistant", Content: r.Content},
|
||||
|
|
@ -1352,64 +1182,52 @@ func (s *Server) ChatHandler(c *gin.Context) {
|
|||
EvalDuration: r.EvalDuration,
|
||||
},
|
||||
}
|
||||
|
||||
if r.Done {
|
||||
resp.TotalDuration = time.Since(checkpointStart)
|
||||
resp.LoadDuration = checkpointLoaded.Sub(checkpointStart)
|
||||
}
|
||||
|
||||
ch <- resp
|
||||
}
|
||||
|
||||
if err := runner.llama.Completion(c.Request.Context(), llm.CompletionRequest{
|
||||
Prompt: prompt,
|
||||
Format: req.Format,
|
||||
Images: images,
|
||||
Options: opts,
|
||||
}, fn); err != nil {
|
||||
}); err != nil {
|
||||
ch <- gin.H{"error": err.Error()}
|
||||
}
|
||||
}()
|
||||
|
||||
if req.Stream != nil && !*req.Stream {
|
||||
// Accumulate responses into the final response
|
||||
var final api.ChatResponse
|
||||
var r api.ChatResponse
|
||||
var sb strings.Builder
|
||||
for resp := range ch {
|
||||
switch r := resp.(type) {
|
||||
for rr := range ch {
|
||||
switch t := rr.(type) {
|
||||
case api.ChatResponse:
|
||||
sb.WriteString(r.Message.Content)
|
||||
final = r
|
||||
sb.WriteString(t.Message.Content)
|
||||
r = t
|
||||
case gin.H:
|
||||
if errorMsg, ok := r["error"].(string); ok {
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": errorMsg})
|
||||
return
|
||||
} else {
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": "unexpected error format in response"})
|
||||
return
|
||||
msg, ok := t["error"].(string)
|
||||
if !ok {
|
||||
msg = "unexpected error format in response"
|
||||
}
|
||||
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": msg})
|
||||
return
|
||||
default:
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": "unexpected error"})
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": "unexpected response"})
|
||||
return
|
||||
}
|
||||
}
|
||||
|
||||
final.Message = api.Message{Role: "assistant", Content: sb.String()}
|
||||
c.JSON(http.StatusOK, final)
|
||||
r.Message.Content = sb.String()
|
||||
c.JSON(http.StatusOK, r)
|
||||
return
|
||||
}
|
||||
|
||||
streamResponse(c, ch)
|
||||
}
|
||||
|
||||
func handleErrorResponse(c *gin.Context, err error) {
|
||||
if errors.Is(err, context.Canceled) {
|
||||
func handleScheduleError(c *gin.Context, name string, err error) {
|
||||
switch {
|
||||
case errors.Is(err, errRequired):
|
||||
c.JSON(http.StatusBadRequest, gin.H{"error": err.Error()})
|
||||
case errors.Is(err, context.Canceled):
|
||||
c.JSON(499, gin.H{"error": "request canceled"})
|
||||
return
|
||||
}
|
||||
if errors.Is(err, ErrMaxQueue) {
|
||||
case errors.Is(err, ErrMaxQueue):
|
||||
c.JSON(http.StatusServiceUnavailable, gin.H{"error": err.Error()})
|
||||
return
|
||||
case errors.Is(err, os.ErrNotExist):
|
||||
c.JSON(http.StatusNotFound, gin.H{"error": fmt.Sprintf("model %q not found, try pulling it first", name)})
|
||||
default:
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
||||
}
|
||||
c.JSON(http.StatusInternalServerError, gin.H{"error": err.Error()})
|
||||
}
|
||||
|
|
|
|||
|
|
@ -5,6 +5,7 @@ import (
|
|||
"embed"
|
||||
"encoding/json"
|
||||
"errors"
|
||||
"fmt"
|
||||
"io"
|
||||
"math"
|
||||
"slices"
|
||||
|
|
@ -14,6 +15,7 @@ import (
|
|||
"text/template/parse"
|
||||
|
||||
"github.com/agnivade/levenshtein"
|
||||
"github.com/ollama/ollama/api"
|
||||
"golang.org/x/exp/maps"
|
||||
)
|
||||
|
||||
|
|
@ -74,30 +76,59 @@ func Named(s string) (*named, error) {
|
|||
return nil, errors.New("no matching template found")
|
||||
}
|
||||
|
||||
var DefaultTemplate, _ = Parse("{{ .Prompt }}")
|
||||
|
||||
type Template struct {
|
||||
*template.Template
|
||||
raw string
|
||||
}
|
||||
|
||||
// response is a template node that can be added to templates that don't already have one
|
||||
var response = parse.ActionNode{
|
||||
NodeType: parse.NodeAction,
|
||||
Pipe: &parse.PipeNode{
|
||||
NodeType: parse.NodePipe,
|
||||
Cmds: []*parse.CommandNode{
|
||||
{
|
||||
NodeType: parse.NodeCommand,
|
||||
Args: []parse.Node{
|
||||
&parse.FieldNode{
|
||||
NodeType: parse.NodeField,
|
||||
Ident: []string{"Response"},
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
},
|
||||
}
|
||||
|
||||
func Parse(s string) (*Template, error) {
|
||||
tmpl := template.New("").Option("missingkey=zero")
|
||||
|
||||
tmpl, err := tmpl.Parse(s)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
t := Template{Template: tmpl, raw: s}
|
||||
if vars := t.Vars(); !slices.Contains(vars, "messages") && !slices.Contains(vars, "response") {
|
||||
// touch up the template and append {{ .Response }}
|
||||
tmpl.Tree.Root.Nodes = append(tmpl.Tree.Root.Nodes, &response)
|
||||
}
|
||||
|
||||
return &t, nil
|
||||
}
|
||||
|
||||
func (t *Template) String() string {
|
||||
return t.raw
|
||||
}
|
||||
|
||||
var DefaultTemplate, _ = Parse("{{ .Prompt }}")
|
||||
|
||||
func Parse(s string) (*Template, error) {
|
||||
t, err := template.New("").Option("missingkey=zero").Parse(s)
|
||||
if err != nil {
|
||||
return nil, err
|
||||
}
|
||||
|
||||
return &Template{Template: t, raw: s}, nil
|
||||
}
|
||||
|
||||
func (t *Template) Vars() []string {
|
||||
var vars []string
|
||||
for _, n := range t.Tree.Root.Nodes {
|
||||
vars = append(vars, parseNode(n)...)
|
||||
for _, tt := range t.Templates() {
|
||||
for _, n := range tt.Root.Nodes {
|
||||
vars = append(vars, parseNode(n)...)
|
||||
}
|
||||
}
|
||||
|
||||
set := make(map[string]struct{})
|
||||
|
|
@ -110,6 +141,103 @@ func (t *Template) Vars() []string {
|
|||
return vars
|
||||
}
|
||||
|
||||
type Values struct {
|
||||
Messages []api.Message
|
||||
}
|
||||
|
||||
func (t *Template) Execute(w io.Writer, v Values) error {
|
||||
system, collated := collate(v.Messages)
|
||||
if slices.Contains(t.Vars(), "messages") {
|
||||
return t.Template.Execute(w, map[string]any{
|
||||
"System": system,
|
||||
"Messages": collated,
|
||||
})
|
||||
}
|
||||
|
||||
var b bytes.Buffer
|
||||
var prompt, response string
|
||||
for i, m := range collated {
|
||||
if m.Role == "user" {
|
||||
prompt = m.Content
|
||||
} else {
|
||||
response = m.Content
|
||||
}
|
||||
|
||||
if i != len(collated)-1 && prompt != "" && response != "" {
|
||||
if err := t.Template.Execute(&b, map[string]any{
|
||||
"System": "",
|
||||
"Prompt": prompt,
|
||||
"Response": response,
|
||||
}); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
prompt = ""
|
||||
response = ""
|
||||
}
|
||||
}
|
||||
|
||||
var cut bool
|
||||
tree := t.Template.Copy()
|
||||
// for the last message, cut everything after "{{ .Response }}"
|
||||
tree.Root.Nodes = slices.DeleteFunc(tree.Root.Nodes, func(n parse.Node) bool {
|
||||
if slices.Contains(parseNode(n), "Response") {
|
||||
cut = true
|
||||
}
|
||||
|
||||
return cut
|
||||
})
|
||||
|
||||
if err := template.Must(template.New("").AddParseTree("", tree)).Execute(&b, map[string]any{
|
||||
"System": system,
|
||||
"Prompt": prompt,
|
||||
}); err != nil {
|
||||
return err
|
||||
}
|
||||
|
||||
_, err := io.Copy(w, &b)
|
||||
return err
|
||||
}
|
||||
|
||||
type messages []*api.Message
|
||||
|
||||
// collate messages based on role. consecutive messages of the same role are merged
|
||||
// into a single message. collate also pulls out and merges messages with Role == "system"
|
||||
// which are templated separately. As a side effect, it mangles message content adding image
|
||||
// tags ([img-%d]) as needed
|
||||
func collate(msgs []api.Message) (system string, collated messages) {
|
||||
var n int
|
||||
for i := range msgs {
|
||||
msg := msgs[i]
|
||||
if msg.Role == "system" {
|
||||
if system != "" {
|
||||
system += "\n\n"
|
||||
}
|
||||
|
||||
system += msg.Content
|
||||
continue
|
||||
}
|
||||
|
||||
for range msg.Images {
|
||||
imageTag := fmt.Sprintf("[img-%d]", n)
|
||||
if !strings.Contains(msg.Content, "[img]") {
|
||||
msg.Content = strings.TrimSpace("[img] " + msg.Content)
|
||||
}
|
||||
|
||||
msg.Content = strings.Replace(msg.Content, "[img]", imageTag, 1)
|
||||
n++
|
||||
}
|
||||
|
||||
if len(collated) > 0 && collated[len(collated)-1].Role == msg.Role {
|
||||
collated[len(collated)-1].Content += "\n\n" + msg.Content
|
||||
} else {
|
||||
collated = append(collated, &msg)
|
||||
}
|
||||
}
|
||||
|
||||
return
|
||||
}
|
||||
|
||||
func parseNode(n parse.Node) []string {
|
||||
switch n := n.(type) {
|
||||
case *parse.ActionNode:
|
||||
|
|
@ -152,6 +280,8 @@ func parseNode(n parse.Node) []string {
|
|||
return names
|
||||
case *parse.FieldNode:
|
||||
return n.Ident
|
||||
case *parse.TemplateNode:
|
||||
return parseNode(n.Pipe)
|
||||
}
|
||||
|
||||
return nil
|
||||
|
|
|
|||
|
|
@ -11,6 +11,7 @@ import (
|
|||
"testing"
|
||||
"text/template"
|
||||
|
||||
"github.com/ollama/ollama/api"
|
||||
"github.com/ollama/ollama/llm"
|
||||
)
|
||||
|
||||
|
|
@ -64,13 +65,12 @@ func TestParse(t *testing.T) {
|
|||
template string
|
||||
vars []string
|
||||
}{
|
||||
{"{{ .Prompt }}", []string{"prompt"}},
|
||||
{"{{ .System }} {{ .Prompt }}", []string{"prompt", "system"}},
|
||||
{"{{ .Prompt }}", []string{"prompt", "response"}},
|
||||
{"{{ .System }} {{ .Prompt }}", []string{"prompt", "response", "system"}},
|
||||
{"{{ .System }} {{ .Prompt }} {{ .Response }}", []string{"prompt", "response", "system"}},
|
||||
{"{{ with .Tools }}{{ . }}{{ end }} {{ .System }} {{ .Prompt }}", []string{"prompt", "system", "tools"}},
|
||||
{"{{ with .Tools }}{{ . }}{{ end }} {{ .System }} {{ .Prompt }}", []string{"prompt", "response", "system", "tools"}},
|
||||
{"{{ range .Messages }}{{ .Role }} {{ .Content }}{{ end }}", []string{"content", "messages", "role"}},
|
||||
{"{{ range .Messages }}{{ if eq .Role \"system\" }}SYSTEM: {{ .Content }}{{ else if eq .Role \"user\" }}USER: {{ .Content }}{{ else if eq .Role \"assistant\" }}ASSISTANT: {{ .Content }}{{ end }}{{ end }}", []string{"content", "messages", "role"}},
|
||||
{"{{ .Prompt }} {{ .Suffix }}", []string{"prompt", "suffix"}},
|
||||
}
|
||||
|
||||
for _, tt := range cases {
|
||||
|
|
@ -87,3 +87,159 @@ func TestParse(t *testing.T) {
|
|||
})
|
||||
}
|
||||
}
|
||||
|
||||
func TestExecuteWithMessages(t *testing.T) {
|
||||
type template struct {
|
||||
name string
|
||||
template string
|
||||
}
|
||||
cases := []struct {
|
||||
name string
|
||||
templates []template
|
||||
values Values
|
||||
expected string
|
||||
}{
|
||||
{
|
||||
"mistral",
|
||||
[]template{
|
||||
{"no response", `[INST] {{ if .System }}{{ .System }}{{ "\n\n" }}{{ end }}{{ .Prompt }}[/INST] `},
|
||||
{"response", `[INST] {{ if .System }}{{ .System }}{{ "\n\n" }}{{ end }}{{ .Prompt }}[/INST] {{ .Response }}`},
|
||||
{"messages", `{{- range $index, $_ := .Messages }}
|
||||
{{- if eq .Role "user" }}[INST] {{ if and (eq (len (slice $.Messages $index)) 1) $.System }}{{ $.System }}{{ "\n\n" }}
|
||||
{{- end }}{{ .Content }}[/INST] {{ else if eq .Role "assistant" }}{{ .Content }}
|
||||
{{- end }}
|
||||
{{- end }}`},
|
||||
},
|
||||
Values{
|
||||
Messages: []api.Message{
|
||||
{Role: "user", Content: "Hello friend!"},
|
||||
{Role: "assistant", Content: "Hello human!"},
|
||||
{Role: "user", Content: "What is your name?"},
|
||||
},
|
||||
},
|
||||
`[INST] Hello friend![/INST] Hello human![INST] What is your name?[/INST] `,
|
||||
},
|
||||
{
|
||||
"mistral system",
|
||||
[]template{
|
||||
{"no response", `[INST] {{ if .System }}{{ .System }}{{ "\n\n" }}{{ end }}{{ .Prompt }}[/INST] `},
|
||||
{"response", `[INST] {{ if .System }}{{ .System }}{{ "\n\n" }}{{ end }}{{ .Prompt }}[/INST] {{ .Response }}`},
|
||||
{"messages", `
|
||||
{{- range $index, $_ := .Messages }}
|
||||
{{- if eq .Role "user" }}[INST] {{ if and (eq (len (slice $.Messages $index)) 1) $.System }}{{ $.System }}{{ "\n\n" }}
|
||||
{{- end }}{{ .Content }}[/INST] {{ else if eq .Role "assistant" }}{{ .Content }}
|
||||
{{- end }}
|
||||
{{- end }}`},
|
||||
},
|
||||
Values{
|
||||
Messages: []api.Message{
|
||||
{Role: "system", Content: "You are a helpful assistant!"},
|
||||
{Role: "user", Content: "Hello friend!"},
|
||||
{Role: "assistant", Content: "Hello human!"},
|
||||
{Role: "user", Content: "What is your name?"},
|
||||
},
|
||||
},
|
||||
`[INST] Hello friend![/INST] Hello human![INST] You are a helpful assistant!
|
||||
|
||||
What is your name?[/INST] `,
|
||||
},
|
||||
{
|
||||
"chatml",
|
||||
[]template{
|
||||
// this does not have a "no response" test because it's impossible to render the same output
|
||||
{"response", `{{ if .System }}<|im_start|>system
|
||||
{{ .System }}<|im_end|>
|
||||
{{ end }}{{ if .Prompt }}<|im_start|>user
|
||||
{{ .Prompt }}<|im_end|>
|
||||
{{ end }}<|im_start|>assistant
|
||||
{{ .Response }}<|im_end|>
|
||||
`},
|
||||
{"messages", `
|
||||
{{- range $index, $_ := .Messages }}
|
||||
{{- if and (eq .Role "user") (eq (len (slice $.Messages $index)) 1) $.System }}<|im_start|>system
|
||||
{{ $.System }}<|im_end|>{{ "\n" }}
|
||||
{{- end }}<|im_start|>{{ .Role }}
|
||||
{{ .Content }}<|im_end|>{{ "\n" }}
|
||||
{{- end }}<|im_start|>assistant
|
||||
`},
|
||||
},
|
||||
Values{
|
||||
Messages: []api.Message{
|
||||
{Role: "system", Content: "You are a helpful assistant!"},
|
||||
{Role: "user", Content: "Hello friend!"},
|
||||
{Role: "assistant", Content: "Hello human!"},
|
||||
{Role: "user", Content: "What is your name?"},
|
||||
},
|
||||
},
|
||||
`<|im_start|>user
|
||||
Hello friend!<|im_end|>
|
||||
<|im_start|>assistant
|
||||
Hello human!<|im_end|>
|
||||
<|im_start|>system
|
||||
You are a helpful assistant!<|im_end|>
|
||||
<|im_start|>user
|
||||
What is your name?<|im_end|>
|
||||
<|im_start|>assistant
|
||||
`,
|
||||
},
|
||||
{
|
||||
"moondream",
|
||||
[]template{
|
||||
// this does not have a "no response" test because it's impossible to render the same output
|
||||
{"response", `{{ if .Prompt }}Question: {{ .Prompt }}
|
||||
|
||||
{{ end }}Answer: {{ .Response }}
|
||||
|
||||
`},
|
||||
{"messages", `
|
||||
{{- range .Messages }}
|
||||
{{- if eq .Role "user" }}Question: {{ .Content }}{{ "\n\n" }}
|
||||
{{- else if eq .Role "assistant" }}Answer: {{ .Content }}{{ "\n\n" }}
|
||||
{{- end }}
|
||||
{{- end }}Answer: `},
|
||||
},
|
||||
Values{
|
||||
Messages: []api.Message{
|
||||
{Role: "user", Content: "What's in this image?", Images: []api.ImageData{[]byte("")}},
|
||||
{Role: "assistant", Content: "It's a hot dog."},
|
||||
{Role: "user", Content: "What's in _this_ image?"},
|
||||
{Role: "user", Images: []api.ImageData{[]byte("")}},
|
||||
{Role: "user", Content: "Is it a hot dog?"},
|
||||
},
|
||||
},
|
||||
`Question: [img-0] What's in this image?
|
||||
|
||||
Answer: It's a hot dog.
|
||||
|
||||
Question: What's in _this_ image?
|
||||
|
||||
[img-1]
|
||||
|
||||
Is it a hot dog?
|
||||
|
||||
Answer: `,
|
||||
},
|
||||
}
|
||||
|
||||
for _, tt := range cases {
|
||||
t.Run(tt.name, func(t *testing.T) {
|
||||
for _, ttt := range tt.templates {
|
||||
t.Run(ttt.name, func(t *testing.T) {
|
||||
tmpl, err := Parse(ttt.template)
|
||||
if err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
var b bytes.Buffer
|
||||
if err := tmpl.Execute(&b, tt.values); err != nil {
|
||||
t.Fatal(err)
|
||||
}
|
||||
|
||||
if b.String() != tt.expected {
|
||||
t.Errorf("expected\n%s,\ngot\n%s", tt.expected, b.String())
|
||||
}
|
||||
})
|
||||
}
|
||||
})
|
||||
}
|
||||
}
|
||||
|
|
|
|||
Loading…
Reference in a new issue