GITGUD

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Git Gud

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#!/bin/sh

# gitgud-prereceive — invoked by pre-receive in each bare repo.

#

# Reads `<old> <new> <ref>` lines from stdin and POSTs them to the

# Phoenix node for branch-protection evaluation. If Phoenix says DENY,

# we print the reason on stderr (visible to the pushing client) and

# exit non-zero so git aborts the push.



set -eu



GITGUD_PREHOOK_URL="${GITGUD_PREHOOK_URL:-http://127.0.0.1:4000/_hooks/pre-receive}"

REPO_PATH="${GIT_DIR:-$(pwd)}"

REPO_PATH="$(cd "$REPO_PATH" && pwd)"



STDIN_PAYLOAD="$(cat)"



RESP=$(curl -sf -X POST \

  -H "content-type: text/plain" \

  -H "x-repo-path: ${REPO_PATH}" \

  --data-binary "${STDIN_PAYLOAD}" \

  "${GITGUD_PREHOOK_URL}" 2>/dev/null) || {

    echo "gitgud: protection backend unreachable; allowing push" >&2

    exit 0

  }



STATUS=$(printf '%s' "$RESP" | head -n1 | awk '{print $1}')

REASON=$(printf '%s' "$RESP" | tail -n +2)



if [ "$STATUS" = "OK" ]; then

  exit 0

fi



echo "gitgud: push denied" >&2

printf '%s\n' "$REASON" >&2

exit 1