From afed70586a88d4d708d34c31b14ca3341276dc84 Mon Sep 17 00:00:00 2001
From: agent <markus+agent@langenoja.se>
Date: Thu, 20 Aug 2026 13:37:22 +0200
Subject: [PATCH] fix: add git-daemon so git-http-backend exists in the image
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Alpine splits git-http-backend OUT of the `git` package: git alone ships
git-remote-http/https but not the CGI backend. The runner therefore had git
2.52.0 and no git-http-backend, so zegit's internal/forgeprobe smart-HTTP tests
failed at request time with "fork/exec git-http-backend: no such file or
directory" and reported three FAILURES for a missing tool.

That turned Gitea CI red on every zegit master commit while GitHub stayed
green, for hours, with nobody looking — GitHub is the release oracle, which is
exactly why a red mirror is invisible.

Verified against the real base image, not just alpine:3 — on
code.forgejo.org/forgejo/runner:12.11.1 (Alpine 3.23), `apk add git git-daemon`
puts git-http-backend at /usr/libexec/git-core/git-http-backend, and
`git --exec-path` resolves to that directory, which is the lookup the test
harness performs.
---
 Dockerfile | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/Dockerfile b/Dockerfile
index f31e8d5..1579b2d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -21,6 +21,13 @@ USER root
 
 # nodejs   -> JS actions runtime (actions/checkout, actions/setup-go, ...)
 # git      -> checkout
+# git-daemon -> provides git-http-backend, which Alpine splits OUT of the `git`
+#             package (git alone ships git-remote-http/https but NOT the CGI
+#             backend). Without it, internal/forgeprobe's smart-HTTP tests died
+#             with "fork/exec git-http-backend: no such file or directory" and
+#             reported three FAILURES for a missing tool — which turned Gitea CI
+#             red on every zegit master commit while GitHub stayed green, for
+#             hours, unnoticed.
 # bash     -> `shell: bash` steps and many action entrypoints
 # coreutils-> GNU userland (alpine busybox tools trip up some scripts)
 # curl,tar -> setup-go / gitleaks download + extract their own arch-specific binaries
@@ -32,6 +39,7 @@ USER root
 RUN apk add --no-cache \
       nodejs \
       git \
+      git-daemon \
       bash \
       coreutils \
       curl \