first commit
This commit is contained in:
Corrado Mulas
200
scripts/mirror_repo.sh
Executable file
200
scripts/mirror_repo.sh
Executable file
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#!/usr/bin/env bash
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set -euo pipefail
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DEFAULT_SOURCE_URL="https://git.mulas.me/corrado/telegram-groupfactory-bot.git"
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DEFAULT_DESTINATION_URL="https://git.devops.lnxc.it/dev/IMS/telegram-groupfactory-bot.git"
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SOURCE_URL="${SOURCE_URL:-$DEFAULT_SOURCE_URL}"
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DESTINATION_URL="${DESTINATION_URL:-$DEFAULT_DESTINATION_URL}"
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SOURCE_BRANCH="${SOURCE_BRANCH:-master}"
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TARGET_BRANCH="${TARGET_BRANCH:-master}"
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MR_BRANCH="${MR_BRANCH:-feat}"
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MR_TITLE="${MR_TITLE:-Mirror telegram-groupfactory-bot}"
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MR_DESCRIPTION="${MR_DESCRIPTION:-Mirror from ${SOURCE_URL} into ${DESTINATION_URL}.}"
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COMMIT_MESSAGE="${COMMIT_MESSAGE:-Mirror source repository tree}"
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WORKDIR=""
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KEEP_WORKDIR=0
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ASSUME_YES=0
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FORCE_WITH_LEASE=1
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usage() {
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cat <<'EOF'
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Mirror telegram-groupfactory-bot through a GitLab merge request.
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Usage:
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scripts/mirror_repo.sh [options]
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Options:
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-s, --source URL Source repository URL.
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-d, --destination URL Destination repository URL.
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--source-branch NAME Source branch to copy. Default: master.
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--target-branch NAME MR target branch. Default: master.
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--mr-branch NAME Destination feature branch. Default: feat.
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--title TEXT Merge request title.
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--description TEXT Merge request description.
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--commit-message TEXT Commit message for the source tree update.
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--no-force-with-lease Use plain --force instead of --force-with-lease.
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-w, --workdir DIR Directory used for the temporary clone.
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-k, --keep-workdir Keep the temporary clone after finishing.
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-y, --yes Skip the confirmation prompt.
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-h, --help Show this help.
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Environment overrides:
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SOURCE_URL, DESTINATION_URL, SOURCE_BRANCH, TARGET_BRANCH, MR_BRANCH,
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MR_TITLE, MR_DESCRIPTION, COMMIT_MESSAGE
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EOF
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}
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while [[ $# -gt 0 ]]; do
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case "$1" in
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-s|--source)
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SOURCE_URL="$2"
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shift 2
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;;
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-d|--destination)
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DESTINATION_URL="$2"
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shift 2
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;;
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--source-branch)
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SOURCE_BRANCH="$2"
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shift 2
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;;
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--target-branch)
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TARGET_BRANCH="$2"
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shift 2
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;;
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--mr-branch)
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MR_BRANCH="$2"
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shift 2
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;;
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--title)
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MR_TITLE="$2"
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shift 2
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;;
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--description)
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MR_DESCRIPTION="$2"
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shift 2
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;;
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--commit-message)
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COMMIT_MESSAGE="$2"
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shift 2
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;;
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--no-force-with-lease)
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FORCE_WITH_LEASE=0
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shift
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;;
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-w|--workdir)
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WORKDIR="$2"
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shift 2
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;;
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-k|--keep-workdir)
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KEEP_WORKDIR=1
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shift
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;;
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-y|--yes)
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ASSUME_YES=1
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shift
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;;
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-h|--help)
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usage
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exit 0
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;;
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*)
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echo "Unknown option: $1" >&2
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usage >&2
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exit 2
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;;
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esac
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done
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if [[ -z "$WORKDIR" ]]; then
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WORKDIR="$(mktemp -d "${TMPDIR:-/tmp}/telegram-groupfactory-bot-mr.XXXXXX")"
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else
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mkdir -p "$WORKDIR"
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fi
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cleanup() {
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if [[ "$KEEP_WORKDIR" -eq 0 && -n "$WORKDIR" && -d "$WORKDIR" ]]; then
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rm -rf "$WORKDIR"
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fi
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}
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trap cleanup EXIT
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echo "Source: $SOURCE_URL"
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echo "Destination: $DESTINATION_URL"
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echo "Source ref: $SOURCE_BRANCH"
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echo "MR branch: $MR_BRANCH"
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echo "MR target: $TARGET_BRANCH"
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echo "Workdir: $WORKDIR"
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echo
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if [[ "$ASSUME_YES" -eq 0 ]]; then
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read -r -p "Create ${MR_BRANCH} from destination/${TARGET_BRANCH}, apply source/${SOURCE_BRANCH}, and create MR? [y/N] " reply
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case "$reply" in
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y|Y|yes|YES)
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;;
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*)
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echo "Aborted."
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exit 1
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;;
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esac
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fi
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echo "Cloning destination target branch..."
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git clone --single-branch --branch "$TARGET_BRANCH" "$DESTINATION_URL" "$WORKDIR/repo"
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cd "$WORKDIR/repo"
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git remote add source "$SOURCE_URL"
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echo "Fetching source branch..."
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git fetch source "refs/heads/${SOURCE_BRANCH}:refs/remotes/source/${SOURCE_BRANCH}"
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echo "Fetching destination MR branch for lease..."
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if git fetch origin "refs/heads/${MR_BRANCH}:refs/remotes/origin/${MR_BRANCH}"; then
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MR_REMOTE_COMMIT="$(git rev-parse "refs/remotes/origin/${MR_BRANCH}")"
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else
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MR_REMOTE_COMMIT=""
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fi
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SOURCE_REF="refs/remotes/source/${SOURCE_BRANCH}"
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TARGET_REF="refs/remotes/origin/${TARGET_BRANCH}"
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SOURCE_COMMIT="$(git rev-parse "$SOURCE_REF")"
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TARGET_COMMIT="$(git rev-parse "$TARGET_REF")"
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echo "Creating MR branch from destination target..."
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git checkout -B "$MR_BRANCH" "$TARGET_REF"
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echo "Applying source tree from ${SOURCE_COMMIT}..."
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git read-tree --reset -u "$SOURCE_REF"
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if git diff --cached --quiet; then
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echo "Destination ${TARGET_BRANCH} already has the same tree as source ${SOURCE_BRANCH}."
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echo "Nothing to push."
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exit 0
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fi
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git commit \
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-m "$COMMIT_MESSAGE" \
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-m "Source: $SOURCE_URL" \
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-m "Source branch: $SOURCE_BRANCH" \
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-m "Source commit: $SOURCE_COMMIT" \
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-m "Destination base: $DESTINATION_URL" \
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-m "Destination target: $TARGET_BRANCH" \
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-m "Destination base commit: $TARGET_COMMIT"
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push_args=()
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if [[ "$FORCE_WITH_LEASE" -eq 1 ]]; then
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push_args+=(--force-with-lease="refs/heads/${MR_BRANCH}:${MR_REMOTE_COMMIT}")
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else
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push_args+=(--force)
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fi
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echo "Pushing MR branch and asking GitLab to create the merge request..."
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git push "${push_args[@]}" \
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-o merge_request.create \
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-o merge_request.target="$TARGET_BRANCH" \
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-o merge_request.title="$MR_TITLE" \
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-o merge_request.description="$MR_DESCRIPTION" \
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origin "HEAD:refs/heads/${MR_BRANCH}"
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echo "Merge request push complete."
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