From f8ab644cd56f14a78e77fb46c30887a57914fb72 Mon Sep 17 00:00:00 2001 From: Max Kratz Date: Thu, 4 Jan 2024 18:51:29 +0100 Subject: [PATCH] Duplicates the mirroring script --- gitea2gitea-mirror | 252 +++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 252 insertions(+) create mode 100755 gitea2gitea-mirror diff --git a/gitea2gitea-mirror b/gitea2gitea-mirror new file mode 100755 index 0000000..58e2180 --- /dev/null +++ b/gitea2gitea-mirror @@ -0,0 +1,252 @@ +#!/bin/bash + +# +# Script to mirror GitHub repos to a Gitea instance. +# +# Modes: +# - Mirror a public/private repo +# - Mirror all public/private repos of a user +# - Mirror all starred repos by a user +# - Mirror all public/private repos of an organization +# +# Heavily inspired by: +# https://github.com/juergenhoetzel/github2gitea-mirror +# + +# ENVs: +# ACCESS_TOKEN = Gitea token +# GITERA_URL = Gitea URL +# GITHUB_TOKEN = GitHub personal access token + +# Displays the given input including "=> " on the console. +log () { + echo "=> $1" +} + +CURL="curl -f -S -s" + +# Check for correctly set ENVs +# ACCESS_TOKEN and GITEA_URL are always necessary +if [[ -z "${ACCESS_TOKEN}" || -z "${GITEA_URL}" ]]; then + echo -e "Please set the Gitea access token and URL in environment:\nexport ACCESS_TOKEN=abc\nexport GITEA_URL=http://gitea:3000\n" >&2 + echo -e "Don't use a trailing slash in URL!" + exit 1 +fi + +# Parse input arguments +if [[ -z "$1" ]]; then + log "No parameter(s) given. Exit." + exit 1 +fi +while [[ "$#" -gt 0 ]]; do + case $1 in + -m|--mode) mode="$2"; shift ;; + -o|--org) gitea_organization="$2"; shift ;; + -u|--user) github_user="$2"; shift ;; + -v|--visibility) visibility="$2"; shift ;; + -r|--repo) repo="$2"; shift ;; + *) log "Unknown parameter passed: $1"; exit 1 ;; + esac + shift +done + +# Prints a message on how to use the script with exit 1 +fail_print_usage () { + echo -e "Usage: $0" + echo -e " -m, --mode {org,star,repo,user} Mode to use; either mirror an organization or mirror all starred repositories." + echo -e " -o, --org \$organization GitHub organization to mirror and/or the target organization in Gitea." + echo -e " -u, --user \$github_user GitHub user to gather the starred repositories from." + echo -e " -v, --visibility {public,private} Visibility for the created Gitea organization." + echo -e " -r, --repo \$repo_url GitHub URL of a single repo to create a mirror for." + echo "" >&2 + exit 1; +} + +# Check if mode is set +if [[ -z "${mode}" ]]; then + fail_print_usage +fi + +# Check required parameters per mode +if [ "${mode}" == "org" ]; then + if [[ -z "${gitea_organization}" ]]; then + echo -e "Organization not set." + fail_print_usage + fi + + if [[ -z "${visibility}" ]]; then + echo -e "Visibility not set." + fail_print_usage + fi +elif [ "${mode}" == "star" ]; then + if [[ -z "${gitea_organization}" || -z "${github_user}" ]]; then + echo -e "Organization or GitHub user not set." + fail_print_usage + fi +elif [ "${mode}" == "repo" ]; then + if [[ -z "${repo}" || -z "${github_user}" ]]; then + echo -e "Repo URL or GitHub user not set." + fail_print_usage + fi +elif [ "${mode}" == "user" ]; then + if [[ -z "${github_user}" ]]; then + echo -e "GitHub user not set." + fail_print_usage + fi +else + echo -e "Mode not found." + fail_print_usage +fi + +# TODO: +#set -euo pipefail +set -eu pipefail + +header_options=(-H "Authorization: Bearer ${ACCESS_TOKEN}" -H "accept: application/json" -H "Content-Type: application/json") +jsonoutput=$(mktemp -d -t github-repos-XXXXXXXX) + +trap "rm -rf ${jsonoutput}" EXIT + +# Sets the uid to the specified Gitea organization +set_uid() { + uid=$($CURL "${header_options[@]}" $GITEA_URL/api/v1/orgs/${gitea_organization} | jq .id) +} + +# Sets the uid to the specified Gitea user +set_uid_user() { + uid=$($CURL "${header_options[@]}" $GITEA_URL/api/v1/users/${github_user} | jq .id) +} + +# Fetches all starred repos of the given user to JSON files +fetch_starred_repos() { + log "Fetch starred repos." + i=1 + # GitHub API just returns empty arrays instead of 404 + while $CURL "https://api.github.com/users/${github_user}/starred?page=${i}&per_page=100" >${jsonoutput}/${i}.json \ + && (( $(jq <${jsonoutput}/${i}.json '. | length') > 0 )) ; do + (( i++ )) + done +} + +# Fetches all public/private repos of the given GitHub organization to JSON files +fetch_orga_repos() { + log "Fetch organization repos." + i=1 + # GitHub API just returns empty arrays instead of 404 + while $CURL "https://api.github.com/orgs/${gitea_organization}/repos?page=${i}&per_page=100" -u "username:${GITHUB_TOKEN}" >${jsonoutput}/${i}.json \ + && (( $(jq <${jsonoutput}/${i}.json '. | length') > 0 )) ; do + (( i++ )) + done +} + +# Fetches all public/private repos of the given GitHub user to JSON files +fetch_user_repos() { + log "Fetch user repos." + i=1 + # GitHub API just returns empty arrays instead of 404 + while $CURL "https://api.github.com/user/repos?affiliation=owner&page=${i}&per_page=100" -u "${github_user}:${GITHUB_TOKEN}" >${jsonoutput}/${i}.json \ + && (( $(jq <${jsonoutput}/${i}.json '. | length') > 0 )) ; do + (( i++ )) + done +} + +# Fetches one public/private GitHub repo to a JSON file +fetch_one_repo() { + log "Fetch one repo." + # Remove URL prefix + repo=$(echo $repo | sed "s/https:\/\/github.com\///g" | sed "s/.git//g") + $CURL "https://api.github.com/repos/$repo" -u "username:${GITHUB_TOKEN}" >${jsonoutput}/1.json +} + +# Creates a specific migration repo on Gitea +create_migration_repo() { + log "Create migration repo." + if ! $CURL -w "%{http_code}\n" "${header_options[@]}" -d @- -X POST $GITEA_URL/api/v1/repos/migrate > ${jsonoutput}/result.txt 2>${jsonoutput}/stderr.txt; then + local code=$(<${jsonoutput}/result.txt) + if (( code != 409 ));then # 409 == repo already exits + cat ${jsonoutput}/stderr.txt >&2 + fi + fi +} + +# Creates a specific public/private organization on Gitea +create_migration_orga() { + visibility="${1:-}" + log "Create migration orga with name: ${gitea_organization}" + if ! $CURL -X POST $GITEA_URL/api/v1/orgs "${header_options[@]}" --data '{"username": "'"${gitea_organization}"'", "visibility": "'"${visibility}"'"}' > ${jsonoutput}/result.txt 2>${jsonoutput}/stderr.txt; then + local code=$(<${jsonoutput}/result.txt) + if (( code != 422 ));then # 422 == orga already exits + cat ${jsonoutput}/stderr.txt >&2 + fi + fi +} + +# Creates a migration repo on Gitea for each GitHub repo in the JSON files +repos_to_migration() { + log "Repos to migration started." + for f in ${jsonoutput}/*.json; do + n=$(jq '. | length'<$f) + if [[ "${n}" -gt "0" ]]; then + (( n-- )) # last element + else + continue; + fi + for i in $(seq 0 $n); do + mig_data=$(jq ".[$i] | .uid=${uid} | \ + if(.visibility==\"private\") then .private=true else .private=false end |\ + if(.visibility==\"private\") then .auth_username=\"${github_user}\" else . end | \ + if(.visibility==\"private\") then .auth_password=\"${GITHUB_TOKEN}\" else . end | \ + .mirror=true | \ + .clone_addr=.clone_url | \ + .description=.description[0:255] | \ + .repo_name=.name | \ + {uid,repo_name,clone_addr,description,mirror,private,auth_username,auth_password}" <$f) + echo "Migrating repo" $(jq ".[$i] | .uid=${uid} | .name" <$f) + echo $mig_data | create_migration_repo + done + done +} + +# Creates one migration repo on Gitea for the one GitHub repo in '1.json' +one_repo_to_migration() { + log "One repo to migration started." + # There should only be one JSON file + for f in ${jsonoutput}/*.json; do + mig_data=$(jq ".repo_owner=\"${github_user}\" | \ + if(.visibility==\"private\") then .private=true else .private=false end |\ + if(.visibility==\"private\") then .auth_username=\"${github_user}\" else . end | \ + if(.visibility==\"private\") then .auth_password=\"${GITHUB_TOKEN}\" else . end | \ + .mirror=true | \ + .clone_addr=.clone_url | \ + .description=.description[0:255] | \ + .repo_name=.name | \ + {repo_owner,repo_name,clone_addr,description,mirror,private,auth_username,auth_password}" <$f) + echo "Migrating repo" $(jq ".name" <$f) + echo $mig_data | create_migration_repo + done +} + +# Actual run the script +if [ "${mode}" == "org" ]; then + log "Mode = organization" + fetch_orga_repos + create_migration_orga ${visibility} + set_uid + repos_to_migration +elif [ "${mode}" == "repo" ]; then + log "Mode = single repo" + fetch_one_repo + one_repo_to_migration +elif [ "${mode}" == "star" ]; then + log "Mode = starred repos" + set_uid + fetch_starred_repos + repos_to_migration +elif [ "${mode}" == "user" ]; then + log "Mode = user" + set_uid_user + fetch_user_repos + repos_to_migration +fi + +log "Finished."