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mirrors.sh
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mirrors.sh
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#!/bin/bash
set -e
for cmd in curl git git-lfs grep jq parallel sed xargs; do
! which "$cmd" >/dev/null || continue
printf '\033[31m[ERROR] Missing command "%s".\033[0m\n' "$cmd" >&2
exit 1
done
trap "trap - SIGTERM && kill -- -$$" SIGINT SIGTERM EXIT
cd "$(dirname "$0")"
date || true
# export HTTP_PROXY=proxy.codingcafe.org:8118
[ ! "$HTTP_PROXY" ] || export HTTPS_PROXY="$HTTP_PROXY"
[ ! "$HTTP_PROXY" ] || export http_proxy="$HTTP_PROXY"
[ ! "$HTTPS_PROXY" ] || export https_proxy="$HTTPS_PROXY"
# Recommend to use group access token with "owner" role and "api" scope.
if [ "$GITLAB_CRED" ]; then
printf '\033[33m[WARNING] $GITLAB_CRED should not be provided as env var for security reasons.\033[0m\n' >&2
else
GITLAB_CRED="$(
set -e +x
ROOT_DIR="$(pwd)" . "pkgs/env/cred.sh" >&2
printf '%s' "$CRED_USR_GITLAB_MIRROR_KEY"
)"
fi
[ "$DST" ] || DST='git@git.codingcafe.org:Mirrors/'
# Append path separator if missing.
DST="$(printf '%s' "$DST" | sed 's/^\([^:@\\\/][^:@\\\/]*@[^:@\\\/][^:@\\\/]*\):*$/\1:/' | sed 's/\([^:\/]\)\/*$/\1\//')"
[ "$GITLAB_API" ] || GITLAB_API="https://git.codingcafe.org/api"
# Drop trailing path separator.
GITLAB_API="$(printf '%s' "$GITLAB_API" | sed 's/\/*$//')"
https_url="$(printf '%s' "$DST" | sed 's/^[^:@\\\/][^:@\\\/]*@\([^:@\\\/][^:@\\\/]*\):/https:\/\/\1\//' | sed 's/\/*$//')"
[ "$STAGE_DIR" ] || STAGE_DIR='/var/mirrors'
mkdir -p "$STAGE_DIR"
log="$(mktemp -t git-mirror-XXXXXXXX.log)"
! grep '[[:space:]]' <<< "$log" >/dev/null
trap "trap - SIGTERM && rm -f $log && kill -- -$$" SIGINT SIGTERM EXIT
# Concurrency restricted by GitHub.
./mirror-list.sh \
| grep $([ "$#" -gt 0 ] && printf ' -e%s' '^$' $@ || printf '.') \
| grep . \
| parallel --bar --group --shuf -d '\n' -j 10 'bash -c '"'"'
set -e
args={}" "
[ "$(xargs -n1 <<< {} | wc -l)" -ne 3 ] && exit 0
cd "'"$STAGE_DIR"'"
src_site="$(cut -d" " -f1 <<< "$args")"
src_dir="$(cut -d" " -f3 <<< "$args")"
src="$src_site$src_dir.git"
dst_domain="$(cut -d" " -f2 <<< "$args" | sed "s/^\/*//" | sed "s/\/*$//" | sed "s/\(..*\)/\1\//")"
dst_site="'"$DST"'$dst_domain"
dst_dir="$src_dir"
dst="$dst_site$dst_dir.git"
local="$(pwd)/$dst_domain/$dst_dir.git"
grep -v "^__" <<< "$src_dir" >/dev/null || exit 0
printf "\033[36m[INFO] Mirror to \"$dst_dir\"\033[0m\n" >&2
mkdir -p "$(dirname "$local")"
cd "$(dirname "$local")"
set +e
! which scl 2>&1 > /dev/null || . scl_source enable rh-git227 || . scl_source enable rh-git218
set -e
[ -d "$local" ] || git clone --mirror "$dst" "$local" 2>&1 || git clone --mirror "$src" "$local" 2>&1
cd "$local"
git remote set-url origin "$dst" 2>&1
git config remote.origin.mirror true
git fetch origin 2>&1 || true
git fetch --tags origin 2>&1 || true
if git lfs ls-files | head -n1 | grep . >/dev/null || git lfs ls-files --deleted | head -n1 | grep . >/dev/null || git lfs ls-files -a | head -n1 | grep . >/dev/null; then
git lfs fetch --all origin 2>&1 || true
fi
git remote set-url origin "$src" 2>&1
# git fetch --prune origin 2>&1
git fetch --prune --tags origin 2>&1
git gc --auto 2>&1
# GitLab-specific:
# - Create groups/subgroups if missing.
if '"$([ "$GITLAB_CRED" ] && printf 'true' || printf 'false')"'; then
for lvl in $(
set -e
curl -sSLX GET \
-H "Authorization: Bearer '"$GITLAB_CRED"'" \
"'"$GITLAB_API"'/v4/groups/$(
set -e
printf "Mirrors%s/%s" "$dst_domain" "$dst_dir" \
| sed "s/\/[^\/][^\/]*$//" \
| sed "s/ /%20/g" \
| sed "s/\//%2F/g"
)" \
| jq -er .id \
| grep "^[0-9][0-9]*$" >/dev/null \
|| printf "Mirrors%s/%s" "$dst_domain" "$dst_dir" \
| tr "/" "\n" \
| grep . \
| wc -l \
| xargs -r expr -1 + \
| xargs -r seq 2
); do
printf "\033[36m[INFO] Create group level %d.\033[0m\n" "$lvl" >&2
for retry in $(seq 10 -1 0); do
! curl -sSLX GET \
-H "Authorization: Bearer '"$GITLAB_CRED"'" \
"'"$GITLAB_API"'/v4/groups/$(
set -e
printf "Mirrors%s/%s" "$dst_domain" "$dst_dir" \
| cut -d/ -f-"$lvl" \
| sed "s/ /%20/g" \
| sed "s/\//%2F/g" \
| grep -v "[[:space:]]"
)" \
| jq -er .id \
| grep "^[0-9][0-9]*$" \
|| break
if [ "$retry" -le 0 ]; then
printf "\033[31m[ERROR] Failed to create group level %d.\033[0m\n" "$lvl" >&2
exit 1
fi
curl -sSLX POST \
-H "Authorization: Bearer '"$GITLAB_CRED"'" \
-H "Content-Type: application/json" \
-d "{\"name\": \"$(
set -e
printf "Mirrors%s/%s" "$dst_domain" "$dst_dir" \
| cut -d/ -f"$lvl" \
| grep -v "[[:space:]]"
)\", \"path\": \"$(
set -e
printf "Mirrors%s/%s" "$dst_domain" "$dst_dir" \
| cut -d/ -f"$lvl" \
| grep -v "[[:space:]]"
)\", \"parent_id\": $(
set -e
printf "Mirrors%s/%s" "$dst_domain" "$dst_dir" \
| cut -d/ -f-"$lvl" \
| sed "s/\/[^\/][^\/]*$//" \
| sed "s/ /%20/g" \
| sed "s/\//%2F/g" \
| grep -v "[[:space:]]" \
| grep . \
| sed "'"s/^/$(
set -e
printf '%s' "$GITLAB_API/v4/groups/" \
| sed 's/\([\\\/\.\-]\)/\\\1/g'
)/"'" \
| xargs -rn1 curl -sSLX GET \
-H "Authorization: Bearer '"$GITLAB_CRED"'" \
| jq -er .id \
| grep "^[0-9][0-9]*$"
), \"visibility\": \"public\"}" \
-o "/dev/stderr" \
-w "%{http_code}\n" \
"'"$GITLAB_API"'/v4/groups/"
done
done
fi
if git lfs ls-files | head -n1 | grep . >/dev/null || git lfs ls-files --deleted | head -n1 | grep . >/dev/null || git lfs ls-files -a | head -n1 | grep . >/dev/null; then
git lfs fetch --all origin 2>&1 || true
git remote set-url origin "$dst" 2>&1
git lfs push --all origin 2>&1 || true
fi
git remote set-url origin "$dst" 2>&1
git config remote.origin.mirror false
git config --replace-all remote.origin.push "+refs/heads/*"
git config --add remote.origin.push "+refs/tags/*"
git push -f origin 2>&1 | grep -v "^Everything up-to-date$" | cat -
git push -f --prune origin 2>&1 | grep -v "^Everything up-to-date$" | cat -
git config --add remote.origin.push "+refs/changes/*"
# git config --add remote.origin.push "+refs/keep-around/*"
# git config --add remote.origin.push "+refs/merge-requests/*"
git config --add remote.origin.push "+refs/meta/*"
# git config --add remote.origin.push "+refs/pipelines/*"
git config --add remote.origin.push "+refs/pull/*"
if ! git push -fq origin 2>&1; then
printf "\033[31m[ERROR] Unable to push all PR refs to \"%s\".\033[0m\n" "$dst" >&2
queue="$(
set -e
printf "refs/%s/\n" \
"changes" \
"meta" \
"pull" \
| grep .
)"
while [ "$queue" ]; do
cur="$(printf "%s" "$queue" | head -n1)"
queue="$(printf "%s" "$queue" | tail -n+2)"
! git push -f origin "$cur*" 2>&1 || continue
next="$(
set -e
git --no-pager show-ref \
| cut -d" " -f2- \
| sed -n "s/^\($(
set -e
printf "%s" "$cur" \
| sed "s/\([\\\\\\/\\.\\-]\)/\\\\\\1/g"
).\).*/\1/p" \
| grep . \
| sort -Vu
)"
if [ "$(printf "%s" "$next" | wc -l | sed "s/^[[:space:]]*//" | sed "s/[[:space:]]$//")" -gt 1 ]; then
printf "\033[33m[WARNING] Refine PR refs "%s" after push failure to \"%s\".\033[0m\n" "$cur*" "$dst" >&2
queue="$(printf "%s\n" "$queue" "$next" | grep .)"
else
printf "\033[31m[ERROR] Unable to push PR refs "%s" to \"%s\".\033[0m\n" "$cur*" "$dst" >&2
fi
done
fi
if ! git push -fq --prune origin 2>&1; then
printf "\033[31m[ERROR] Unable to prune PR refs on \"%s\".\033[0m\n" "$dst" >&2
fi
git config remote.origin.mirror true
# git push --mirror origin 2>&1
# git push -f --all --prune origin 2>&1
# git push -f --tags --prune origin 2>&1
# GitLab-specific:
# - Set visibility after checking.
# Credential with restrictive role(s) can be used for read-only checking.
if '"$([ "$GITLAB_CRED" ] && printf 'true' || printf 'false')"'; then
! printf "Mirrors%s/%s" "$dst_domain" "$dst_dir" \
| sed "s/ /%20/g" \
| sed "s/\//%2F/g" \
| grep -v "[[:space:]]" \
| grep . \
| sed "'"s/^/$(
set -e
printf '%s' "$GITLAB_API/v4/projects/" \
| sed 's/\([\\\/\.\-]\)/\\\1/g'
)/"'" \
| xargs -rn1 curl -sSLX GET -H "Authorization: Bearer '"$GITLAB_CRED"'" \
| jq -er ".visibility" \
| grep -e "^internal$" -e "^private$" \
|| printf "Mirrors%s/%s" "$dst_domain" "$dst_dir" \
| sed "s/ /%20/g" \
| sed "s/\//%2F/g" \
| grep -v "[[:space:]]" \
| grep . \
| sed "'"s/^/$(
set -e
printf '%s' "$GITLAB_API/v4/projects/" \
| sed 's/\([\\\/\.\-]\)/\\\1/g'
)/"'" \
| xargs -rn1 curl -sSLX PUT \
-H "Authorization: Bearer '"$GITLAB_CRED"'" \
-d "visibility=public" \
-o "/dev/null" \
-w "%{http_code}" \
| grep "^200$"
fi
'"'" 2>&1 | tee "$log"
grep \
-e 'Connection reset by' \
-e 'bytes of body are still expected' \
-e 'client_loop: send disconnect' \
-e 'error: RPC failed; curl 56 GnuTLS recv error (-9)' \
-e 'fatal: expected flush after ref listing' \
-e 'gnutls_handshake() failed: The TLS connection was non-properly terminated.' \
-e 'kex_exchange_identification: Connection closed by remote host' \
-e 'unexpected disconnect while reading sideband packet' \
-i \
"$log" \
| wc -l \
| grep -v '^0$' \
| xargs -r printf '\033[31m[ERROR] Found %d potential network failures in log.\033[0m\n' >&2
grep \
-e 'Could not scan for Git LFS tree: missing object:' \
-e 'WARNING: REMOTE HOST IDENTIFICATION HAS CHANGED!' \
-e 'error: update_ref failed for ref' \
-e 'fatal: Could not read from remote repository.' \
-e 'parse error: Invalid numeric literal at line' \
-e 'remote: GitLab: http post to gitlab api /post_receive endpoint: 500 Internal Server Error' \
-i \
"$log" \
| wc -l \
| grep -v '^0$' \
| xargs -r printf '\033[31m[ERROR] Found %d potential non-network failures in log.\033[0m\n' >&2
paste -sd' ' "$log" \
| sed 's/remote: GitLab: The default branch of a project cannot be deleted\. *To *\([^ ]*\)/\n########\1\n/g' \
| sed -n 's/^########//p' \
| sed 's/^\(git\.codingcafe\.org\):/https:\/\/\1\//' \
| sed 's/\.git$/\/\-\/settings\/repository/' \
| xargs -r printf '\033[31m[ERROR] Potential branch renaming at: %s\033[0m\n' >&2
rm -f "$log"
trap "trap - SIGTERM && kill -- -$$" SIGINT SIGTERM EXIT
date || true
trap - SIGTERM SIGINT EXIT