Fast implementation of Git in pure Go
codeberg.org/lindenii/furgit
git
go
cmd/index-pack: Remove
-146
-25
cmd/index-pack/algorithm.go
-25
cmd/index-pack/algorithm.go
···
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package main
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import (
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"fmt"
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objectid "codeberg.org/lindenii/furgit/object/id"
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"codeberg.org/lindenii/furgit/repository"
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)
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func resolveAlgorithm(repo *repository.Repository, objectFormat string) (objectid.Algorithm, error) {
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if objectFormat != "" {
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algo, ok := objectid.ParseAlgorithm(objectFormat)
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if !ok {
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return objectid.AlgorithmUnknown, fmt.Errorf("invalid object format %q", objectFormat)
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}
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return algo, nil
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}
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if repo != nil {
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return repo.Algorithm(), nil
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}
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return objectid.AlgorithmSHA1, nil
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}
-26
cmd/index-pack/main.go
-26
cmd/index-pack/main.go
···
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// Command index-pack ingests one pack stream from stdin and writes .pack/.idx/.rev.
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package main
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import (
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"flag"
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"log"
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)
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func main() {
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repoPath := flag.String("r", "", "path to git dir (.git or bare repo root)")
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destinationPath := flag.String("destination", "", "path to destination objects/pack directory")
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objectFormat := flag.String("object-format", "", "object format (sha1 or sha256)")
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fixThin := flag.Bool("fix-thin", false, "fix thin packs using repository object store")
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writeRev := flag.Bool("rev-index", true, "write reverse index (.rev)")
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flag.Parse()
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if *destinationPath == "" {
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log.Fatal("must provide -destination <objects/pack>")
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}
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err := run(*repoPath, *destinationPath, *objectFormat, *fixThin, *writeRev)
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if err != nil {
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log.Fatalf("run: %v", err)
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}
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}
-95
cmd/index-pack/run.go
-95
cmd/index-pack/run.go
···
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package main
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import (
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"fmt"
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"os"
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"path/filepath"
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"codeberg.org/lindenii/furgit/format/packfile/ingest"
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objectid "codeberg.org/lindenii/furgit/object/id"
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objectstore "codeberg.org/lindenii/furgit/object/store"
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"codeberg.org/lindenii/furgit/repository"
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)
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func run(repoPath, destinationPath, objectFormat string, fixThin, writeRev bool) error {
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var (
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algo objectid.Algorithm
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base objectstore.Reader
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repo *repository.Repository
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)
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if repoPath != "" {
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repoRoot, err := os.OpenRoot(repoPath)
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if err != nil {
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return fmt.Errorf("open repo root: %w", err)
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}
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defer func() { _ = repoRoot.Close() }()
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repo, err = repository.Open(repoRoot)
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if err != nil {
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return fmt.Errorf("open repository: %w", err)
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}
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defer func() { _ = repo.Close() }()
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}
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algo, err := resolveAlgorithm(repo, objectFormat)
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if err != nil {
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return err
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}
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if fixThin {
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if repo == nil {
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return fmt.Errorf("fix-thin requires -r <repo>")
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}
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if repo.Algorithm() != algo {
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return fmt.Errorf("algorithm mismatch: repo=%s flag=%s", repo.Algorithm(), algo)
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}
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base = repo.Objects()
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}
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absDestination, err := filepath.Abs(destinationPath)
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if err != nil {
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return fmt.Errorf("absolute destination path: %w", err)
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}
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destinationRoot, err := os.OpenRoot(absDestination)
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if err != nil {
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return fmt.Errorf("open destination root: %w", err)
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}
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defer func() { _ = destinationRoot.Close() }()
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pending, err := ingest.Ingest(os.Stdin, algo, ingest.Options{
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FixThin: fixThin,
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WriteRev: writeRev,
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Base: base,
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RequireTrailingEOF: true,
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})
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if err != nil {
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return err
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}
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if pending.Header().ObjectCount == 0 {
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discarded, err := pending.Discard()
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if err != nil {
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return err
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}
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_, _ = fmt.Fprintf(os.Stdout, "pack\t%s\n", discarded.PackHash.String())
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return nil
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}
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result, err := pending.Continue(destinationRoot)
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if err != nil {
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return err
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}
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_, _ = fmt.Fprintf(os.Stdout, "pack\t%s\n", result.PackHash.String())
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return nil
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}