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add the ability to specify repository ref (#80)

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closes #75

Reviewed-on: Plemya-x/ALR#80
Co-authored-by: Maxim Slipenko <no-reply@maxim.slipenko.com>
Co-committed-by: Maxim Slipenko <no-reply@maxim.slipenko.com>
This commit is contained in:
Maxim Slipenko
2025-05-08 18:04:51 +00:00
committed by Maxim Slipenko
parent 76234bf00d
commit c632ddb354
7 changed files with 210 additions and 37 deletions
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102
pkg/repos/pull.go
View File

@ -33,6 +33,7 @@ import (
"github.com/go-git/go-billy/v5"
"github.com/go-git/go-billy/v5/osfs"
"github.com/go-git/go-git/v5"
gitConfig "github.com/go-git/go-git/v5/config"
"github.com/go-git/go-git/v5/plumbing"
"github.com/leonelquinteros/gotext"
"github.com/pelletier/go-toml/v2"
@ -88,6 +89,14 @@ func (rs *Repos) Pull(ctx context.Context, repos []types.Repo) error {
return err
}
err = r.FetchContext(ctx, &git.FetchOptions{
Progress: os.Stderr,
Force: true,
})
if err != nil && !errors.Is(err, git.NoErrAlreadyUpToDate) {
return err
}
w, err := r.Worktree()
if err != nil {
return err
@ -98,34 +107,41 @@ func (rs *Repos) Pull(ctx context.Context, repos []types.Repo) error {
return err
}
err = w.PullContext(ctx, &git.PullOptions{Progress: os.Stderr})
if errors.Is(err, git.NoErrAlreadyUpToDate) {
revHash, err := resolveHash(r, repo.Ref)
if err != nil {
return fmt.Errorf("error resolving hash: %w", err)
}
if old.Hash() == *revHash {
slog.Info(gotext.Get("Repository up to date"), "name", repo.Name)
} else if err != nil {
}
err = w.Checkout(&git.CheckoutOptions{
Hash: plumbing.NewHash(revHash.String()),
Force: true,
})
if err != nil {
return err
}
repoFS = w.Filesystem
// Make sure the DB is created even if the repo is up to date
if !errors.Is(err, git.NoErrAlreadyUpToDate) || rs.db.IsEmpty(ctx) {
new, err := r.Head()
new, err := r.Head()
if err != nil {
return err
}
// If the DB was not present at startup, that means it's
// empty. In this case, we need to update the DB fully
// rather than just incrementally.
if rs.db.IsEmpty(ctx) {
err = rs.processRepoFull(ctx, repo, repoDir)
if err != nil {
return err
}
// If the DB was not present at startup, that means it's
// empty. In this case, we need to update the DB fully
// rather than just incrementally.
if rs.db.IsEmpty(ctx) {
err = rs.processRepoFull(ctx, repo, repoDir)
if err != nil {
return err
}
} else {
err = rs.processRepoChanges(ctx, repo, r, w, old, new)
if err != nil {
return err
}
} else {
err = rs.processRepoChanges(ctx, repo, r, w, old, new)
if err != nil {
return err
}
}
} else {
@ -139,9 +155,40 @@ func (rs *Repos) Pull(ctx context.Context, repos []types.Repo) error {
return err
}
_, err = git.PlainCloneContext(ctx, repoDir, false, &git.CloneOptions{
URL: repoURL.String(),
r, err := git.PlainInit(repoDir, false)
if err != nil {
return err
}
_, err = r.CreateRemote(&gitConfig.RemoteConfig{
Name: git.DefaultRemoteName,
URLs: []string{repoURL.String()},
})
if err != nil {
return err
}
err = r.FetchContext(ctx, &git.FetchOptions{
Progress: os.Stderr,
Force: true,
})
if err != nil {
return err
}
w, err := r.Worktree()
if err != nil {
return err
}
revHash, err := resolveHash(r, repo.Ref)
if err != nil {
return fmt.Errorf("error resolving hash: %w", err)
}
err = w.Checkout(&git.CheckoutOptions{
Hash: plumbing.NewHash(revHash.String()),
Force: true,
})
if err != nil {
return err
@ -268,7 +315,8 @@ func (rs *Repos) processRepoChangesRunner(repoDir, scriptDir string) (*interp.Ru
interp.StatHandler(handlers.RestrictedStat(repoDir)),
interp.OpenHandler(handlers.RestrictedOpen(repoDir)),
interp.StdIO(handlers.NopRWC{}, handlers.NopRWC{}, handlers.NopRWC{}),
interp.Dir(scriptDir),
// Use temp dir instead script dir because runner may be for deleted file
interp.Dir(os.TempDir()),
)
}
@ -285,7 +333,7 @@ func (rs *Repos) processRepoChanges(ctx context.Context, repo types.Repo, r *git
patch, err := oldCommit.Patch(newCommit)
if err != nil {
return err
return fmt.Errorf("error to create patch: %w", err)
}
var actions []action
@ -319,6 +367,7 @@ func (rs *Repos) processRepoChanges(ctx context.Context, repo types.Repo, r *git
},
)
default:
slog.Debug("unexpected, but I'll try to do")
actions = append(actions, action{
Type: actionUpdate,
File: to.Path(),
@ -332,7 +381,7 @@ func (rs *Repos) processRepoChanges(ctx context.Context, repo types.Repo, r *git
for _, action := range actions {
runner, err := rs.processRepoChangesRunner(repoDir, filepath.Dir(filepath.Join(repoDir, action.File)))
if err != nil {
return err
return fmt.Errorf("error creating process repo changes runner: %w", err)
}
switch action.Type {
@ -340,7 +389,6 @@ func (rs *Repos) processRepoChanges(ctx context.Context, repo types.Repo, r *git
if filepath.Base(action.File) != "alr.sh" {
continue
}
scriptFl, err := oldCommit.File(action.File)
if err != nil {
return nil
@ -378,7 +426,7 @@ func (rs *Repos) processRepoChanges(ctx context.Context, repo types.Repo, r *git
err = rs.updatePkg(ctx, repo, runner, r)
if err != nil {
return err
return fmt.Errorf("error updatePkg: %w", err)
}
}
}

62
pkg/repos/utils.go
View File

@ -18,12 +18,18 @@ package repos
import (
"context"
"fmt"
"io"
"path/filepath"
"reflect"
"strings"
"github.com/go-git/go-git/v5"
"github.com/go-git/go-git/v5/plumbing"
"github.com/go-git/go-git/v5/plumbing/format/diff"
"github.com/go-git/go-git/v5/plumbing/transport"
"github.com/go-git/go-git/v5/plumbing/transport/client"
"mvdan.cc/sh/v3/interp"
"mvdan.cc/sh/v3/syntax"
@ -137,3 +143,59 @@ func resolveOverrides(runner *interp.Runner, pkg *db.Package) {
}
}
}
func getHeadReference(r *git.Repository) (plumbing.ReferenceName, error) {
remote, err := r.Remote(git.DefaultRemoteName)
if err != nil {
return "", err
}
endpoint, err := transport.NewEndpoint(remote.Config().URLs[0])
if err != nil {
return "", err
}
gitClient, err := client.NewClient(endpoint)
if err != nil {
return "", err
}
session, err := gitClient.NewUploadPackSession(endpoint, nil)
if err != nil {
return "", err
}
info, err := session.AdvertisedReferences()
if err != nil {
return "", err
}
refs, err := info.AllReferences()
if err != nil {
return "", err
}
return refs["HEAD"].Target(), nil
}
func resolveHash(r *git.Repository, ref string) (*plumbing.Hash, error) {
var err error
if ref == "" {
reference, err := getHeadReference(r)
if err != nil {
return nil, fmt.Errorf("failed to get head reference %w", err)
}
ref = reference.Short()
}
hsh, err := r.ResolveRevision(git.DefaultRemoteName + "/" + plumbing.Revision(ref))
if err != nil {
hsh, err = r.ResolveRevision(plumbing.Revision(ref))
if err != nil {
return nil, err
}
}
return hsh, nil
}