opengist/internal/hooks/post_receive.go

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package hooks
import (
"bufio"
"fmt"
"github.com/thomiceli/opengist/internal/db"
"github.com/thomiceli/opengist/internal/git"
"io"
"os"
"os/exec"
"slices"
"strings"
)
func PostReceive(in io.Reader, out, er io.Writer) error {
opts := pushOptions()
scanner := bufio.NewScanner(in)
for scanner.Scan() {
line := scanner.Text()
parts := strings.Fields(line)
if len(parts) != 3 {
_, _ = fmt.Fprintln(er, "Invalid input")
return fmt.Errorf("invalid input")
}
oldrev, _, refname := parts[0], parts[1], parts[2]
if err := verifyHEAD(); err != nil {
setSymbolicRef(refname)
}
if oldrev == BaseHash {
_, _ = fmt.Fprintf(out, "\nYour new repository has been created here: %s\n\n", os.Getenv("OPENGIST_REPOSITORY_URL_INTERNAL"))
_, _ = fmt.Fprintln(out, "If you want to keep working with your gist, you could set the remote URL via:")
_, _ = fmt.Fprintf(out, "git remote set-url origin %s\n\n", os.Getenv("OPENGIST_REPOSITORY_URL_INTERNAL"))
}
}
gist, err := db.GetGistByID(os.Getenv("OPENGIST_REPOSITORY_ID"))
if err != nil {
_, _ = fmt.Fprintln(er, "Failed to get gist")
return fmt.Errorf("failed to get gist: %w", err)
}
if slices.Contains([]string{"public", "unlisted", "private"}, opts["visibility"]) {
gist.Private, _ = db.ParseVisibility(opts["visibility"])
_, _ = fmt.Fprintf(out, "\nGist visibility set to %s\n\n", opts["visibility"])
}
if hasNoCommits, err := git.HasNoCommits(gist.User.Username, gist.Uuid); err != nil {
_, _ = fmt.Fprintln(er, "Failed to check if gist has no commits")
return fmt.Errorf("failed to check if gist has no commits: %w", err)
} else if hasNoCommits {
if err = gist.Delete(); err != nil {
_, _ = fmt.Fprintln(er, "Failed to delete gist")
return fmt.Errorf("failed to delete gist: %w", err)
}
}
_ = gist.SetLastActiveNow()
err = gist.UpdatePreviewAndCount(true)
if err != nil {
_, _ = fmt.Fprintln(er, "Failed to update gist")
return fmt.Errorf("failed to update gist: %w", err)
}
gist.AddInIndex()
return nil
}
func verifyHEAD() error {
return exec.Command("git", "rev-parse", "--verify", "--quiet", "HEAD").Run()
}
func setSymbolicRef(refname string) {
_ = exec.Command("git", "symbolic-ref", "HEAD", refname).Run()
}