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#!/bin/bash
# This script pushes the repository mirrors to their respective remote URLs if they are defined in the .gitinfo file.
LOCK_FILE=/var/lock/push-repo-mirrors.lock
exec 9>"$LOCK_FILE"
if ! flock --nonblock 9; then
echo "Another instance is already running. Exiting."
exit 1
fi
for repository in /repositories/*; do
echo "Processing repository: $(basename "$repository")"
cd /repositories/$(basename "$repository")
gitinfoExists=$(git ls-tree HEAD -- .gitinfo 2>/dev/null)
echo "gitinfoExists: $gitinfoExists"
# does gitinfo exist?
if [ -z "$gitinfoExists" ]; then
echo "No .gitinfo found for $(basename "$repository"). Skipping."
continue
fi
gitinfoContents=$(git cat-file -p @:.gitinfo)
echo "gitinfoContents: $gitinfoContents"
# extract mirrors from gitinfo (json format)
mirrors=$(echo "$gitinfoContents" | jq -r '.mirrors[]')
echo "Extracted mirrors: $mirrors"
# push to each mirror
while IFS= read -r mirror; do
[ -z "$mirror" ] && continue
case "$mirror" in
*github.com*)
# do we have a /run/secrets/github_token defined?
if [ ! -f /run/secrets/github_token ]; then
echo "/run/secrets/github_token not found. Skipping push to $mirror."
continue
fi
GITHUB_TOKEN=$(cat /run/secrets/github_token)
mirror_host="${mirror#https://}"
# Update the GitHub repo's default branch to match the local HEAD before mirroring,
# so that --mirror can delete any branch that was previously the default.
local_default=$(git symbolic-ref --short HEAD 2>/dev/null)
github_repo="${mirror#https://github.com/}"
if [ -n "$local_default" ]; then
echo "Setting GitHub default branch to '$local_default' for $github_repo"
if ! curl -sf -X PATCH \
-H "Authorization: Bearer $GITHUB_TOKEN" \
-H "Accept: application/vnd.github+json" \
-d "{\"default_branch\":\"$local_default\"}" \
"https://api.github.com/repos/$github_repo" > /dev/null; then
echo "Error: failed to update default branch on GitHub for $github_repo. Skipping push."
continue
fi
fi
echo "Pushing to GitHub mirror: $mirror"
git push --mirror "https://x-access-token:$GITHUB_TOKEN@$mirror_host" 2>&1 | sed "s/$GITHUB_TOKEN/[REDACTED]/g" || echo "Failed to push to $mirror"
;;
*)
echo "Unknown mirror type: $mirror. Skipping."
;;
esac
done <<< "$mirrors"
done
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