forked from
tangled.org/core
Monorepo for Tangled
knotserver/internal: add create PR message on git push
Respond to a successful push with a URL to create a PR pointing to the
default branch. This behavior is made to mimic other Git forges.
Signed-off-by: Samuel Shuert <me@thecoded.prof>
author
Samuel Shuert
committer
Tangled
date
(Oct 8, 2025, 10:12 AM UTC)
commit
d59f9a55
d59f9a550a6aadd794cc9be02d6372da3bc9d7d9
parent
32a172c3
32a172c375c3f487f7d146d0a46db2713f58f184
+46
+46
knotserver/internal.go
+46
knotserver/internal.go
···
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securejoin "github.com/cyphar/filepath-securejoin"
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"github.com/go-chi/chi/v5"
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"github.com/go-chi/chi/v5/middleware"
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+
"github.com/go-git/go-git/v5/plumbing"
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"tangled.org/core/api/tangled"
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"tangled.org/core/hook"
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+
"tangled.org/core/idresolver"
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"tangled.org/core/knotserver/config"
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"tangled.org/core/knotserver/db"
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"tangled.org/core/knotserver/git"
···
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// non-fatal
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}
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+
if (line.NewSha.String() != line.OldSha.String()) && line.OldSha.IsZero() {
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+
msg, err := h.replyCompare(line, gitUserDid, gitRelativeDir, repoName, r.Context())
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if err != nil {
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l.Error("failed to reply with compare link", "err", err, "line", line, "did", gitUserDid, "repo", gitRelativeDir)
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// non-fatal
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} else {
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for msgLine := range msg {
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resp.Messages = append(resp.Messages, msg[msgLine])
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}
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}
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}
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err = h.triggerPipeline(&resp.Messages, line, gitUserDid, repoDid, repoName, pushOptions)
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if err != nil {
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l.Error("failed to trigger pipeline", "err", err, "line", line, "did", gitUserDid, "repo", gitRelativeDir)
···
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}
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writeJSON(w, resp)
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}
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+
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func (h *InternalHandle) replyCompare(line git.PostReceiveLine, gitUserDid string, gitRelativeDir string, repoName string, ctx context.Context) ([]string, error) {
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l := h.l.With("handler", "replyCompare")
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userIdent, err := idresolver.DefaultResolver().ResolveIdent(ctx, gitUserDid)
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user := gitUserDid
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if err != nil {
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l.Error("Failed to fetch user identity", "err", err)
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// non-fatal
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} else {
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user = userIdent.Handle.String()
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}
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gr, err := git.PlainOpen(gitRelativeDir)
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if err != nil {
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l.Error("Failed to open git repository", "err", err)
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return []string{}, err
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}
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defaultBranch, err := gr.FindMainBranch()
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if err != nil {
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l.Error("Failed to fetch default branch", "err", err)
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return []string{}, err
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}
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if line.Ref == plumbing.NewBranchReferenceName(defaultBranch).String() {
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return []string{}, nil
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}
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ZWS := "\u200B"
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var msg []string
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msg = append(msg, ZWS)
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msg = append(msg, fmt.Sprintf("Create a PR pointing to %s", defaultBranch))
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msg = append(msg, fmt.Sprintf("\t%s/%s/%s/compare/%s...%s", h.c.AppViewEndpoint, user, repoName, defaultBranch, strings.TrimPrefix(line.Ref, "refs/heads/")))
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msg = append(msg, ZWS)
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return msg, nil
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}
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func (h *InternalHandle) insertRefUpdate(line git.PostReceiveLine, gitUserDid, repoDid, repoName string) error {