146 lines
4.2 KiB
Bash
Executable File
146 lines
4.2 KiB
Bash
Executable File
#!/bin/bash
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# Migrate assignments for Gitea-Issues after a Gitea2Gitea-Migration
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# 2024 Benjamin Winter
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set -eu
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readonly PROGNAME=`/usr/bin/basename $0`
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readonly PROGPATH=`echo $0 | sed -e 's,[\\/][^\\/][^\\/]*$,,'`
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readonly REVISION="0.0.1-WIP"
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repo=""
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login_old=""
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login_new=""
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dry_run=true
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#
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# FUNCTIONS
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#
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print_help()
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{
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cat << "EOF"
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PURPOSE
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- Migrate assignments for Gitea-Issues after a Gitea2Gitea-Migration
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- issues must have the same ID on both systems
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- users must have the same NAME on both systems
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- example
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- OLD: https://oldgitea.example.com/my_organisation/my_repository
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- NEW: https://newgitea.example.com/my_organisation/my_repository
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- Typical Workflow
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1. migrate your repository from your OLD Gitea instance to your NEW one
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2. use this script to migrate the assignments
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INFORMATION
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- this script will start in DRY MODE by default - see --GO parameter
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- this script will check the environment and stops on any error
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- this script will check the OLD and NEW repository for inconsistencies
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- if your titles include a ¬ character, the script may could behave funny as this i used as separator
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INSTALLATION AND PREPARATION
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- install
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- jq - Command-line JSON processor
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- tea: https://gitea.com/gitea/tea
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- create Gitea tokens for tea
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- permissions on the OLD system:
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- user: read
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- issue: read
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- permissions on the NEW system:
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- user: read
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- issue: read and write
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- set up login via tea → "tea login add --help", i.e.
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- tea login add --name OLD --url https://oldgitea.example.com --token 123456789123456789
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- tea login add --name NEW --url https://newgitea.example.com --token 123459789123456789
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USAGE
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-h | --help print this help
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-r | --repo required, i.e. "my_organisation/my_repository"
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-o | --login_old required, tea-id of your old login
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-n | --login_new required, tea-id of your new login
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--GO stop dry mode
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EOF
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}
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error_in_or_out_not_specified()
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{
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echo -e "Error: --repo, --login_old and --login_new must be specified\n";
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print_help;
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exit 2
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}
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# @param $1 "command" → the command to check for
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checkCommand()
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{
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command -v "$1" >/dev/null 2>&1 || { echo >&2 "Command ${1} is required but it's not installed. Aborting."; exit 42; }
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}
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#
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# PARAMETERS
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#
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if [[ "$@" == "" ]] ; then error_in_or_out_not_specified ; fi
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TEMP=$(getopt -o h,r:o:n: --long help,GO,repo:login_old:,login_new: -n "${PROGNAME}" -- "$@")
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eval set -- "${TEMP}"
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while true ; do
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case "$1" in
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--help|-h)
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print_help
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exit 0
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;;
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--repo|-r)
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repo="$2"
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shift
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;;
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--login_old|-o)
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login_old="$2"
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shift
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;;
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--login_new|-n)
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login_new="$2"
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shift
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;;
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--GO)
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dry_run=false
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;;
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--) shift ; break ;;
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*) echo "Internal error!"
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exit 5
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;;
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esac
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shift
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done
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# check required
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if [[ -z "$repo" || -z "$login_old" || -z "$login_new" ]] ; then error_in_or_out_not_specified ; fi
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#
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# START
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#
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if $dry_run; then echo -e "###\n### DRY RUN - will not change anything\n###"; fi
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# check commands
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checkCommand tea
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checkCommand jq
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# get data
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echo -e "\n# checking access to OLD (\"$login_old\") and NEW (\"$login_new\")"
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json_old=$(tea issues list --output json --login "$login_old" --repo "$repo" --state all --fields index,assignees,title)
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json_new=$(tea issues list --output json --login "$login_new" --repo "$repo" --state all --fields index,assignees,title)
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# check data
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readonly json_old_ids=$(echo "$json_old" | jq ".[] | .index")
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readonly json_new_ids=$(echo "$json_new" | jq ".[] | .index")
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if [[ "$json_old_ids" != "$json_new_ids" ]]; then
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echo >&2 "OLD repositories' ids differ from NEW repository. Aborting.";
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echo >&2 "OLD repositories' ids: $(echo "$json_old_ids" | tr '\n' ,)";
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echo >&2 "NEW repositories' ids: $(echo "$json_new_ids" | tr '\n' ,)";
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exit 3;
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fi
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# process data
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while IFS="¬"; read -r index assignees title; do
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echo "processing issue #${index} - \"${title}\", assigned to \"${assignees}\""
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done< <(echo "$json_old" | jq --raw-output '.[] | "\(.index)¬\(.assignees)¬\(.title)"')
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exit 0
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