d966b730ac
Refactor where we store build outputs, and support a fully dynamic loading model on windows so the base executable has no special dependencies thus doesn't require a special PATH.
71 lines
1.8 KiB
Go
71 lines
1.8 KiB
Go
package llm
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import (
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"embed"
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"errors"
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"fmt"
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"io"
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"io/fs"
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"log"
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"os"
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"path/filepath"
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"github.com/jmorganca/ollama/api"
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)
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//go:embed llama.cpp/gguf/ggml-metal.metal
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var libEmbed embed.FS
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func newDynamicShimExtServer(library, model string, adapters, projectors []string, numLayers int64, opts api.Options) (extServer, error) {
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// should never happen...
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return nil, fmt.Errorf("Dynamic library loading not supported on Mac")
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}
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func nativeInit(workdir string) error {
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err := extractPayloadFiles(workdir, "llama.cpp/gguf/ggml-metal.metal")
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if err != nil {
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if err == payloadMissing {
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// TODO perhaps consider this a hard failure on arm macs?
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log.Printf("ggml-meta.metal payload missing")
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return nil
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}
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return err
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}
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os.Setenv("GGML_METAL_PATH_RESOURCES", workdir)
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return nil
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}
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func extractPayloadFiles(workDir, glob string) error {
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files, err := fs.Glob(libEmbed, glob)
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if err != nil || len(files) == 0 {
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return payloadMissing
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}
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for _, file := range files {
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srcFile, err := libEmbed.Open(file)
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if err != nil {
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return fmt.Errorf("read payload %s: %v", file, err)
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}
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defer srcFile.Close()
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if err := os.MkdirAll(workDir, 0o755); err != nil {
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return fmt.Errorf("create payload temp dir %s: %v", workDir, err)
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}
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destFile := filepath.Join(workDir, filepath.Base(file))
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_, err = os.Stat(destFile)
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switch {
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case errors.Is(err, os.ErrNotExist):
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destFile, err := os.OpenFile(destFile, os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0o755)
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if err != nil {
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return fmt.Errorf("write payload %s: %v", file, err)
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}
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defer destFile.Close()
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if _, err := io.Copy(destFile, srcFile); err != nil {
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return fmt.Errorf("copy payload %s: %v", file, err)
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}
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case err != nil:
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return fmt.Errorf("stat payload %s: %v", file, err)
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}
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}
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return nil
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}
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