move-a-repo

#!/bin/bash
#
# This Source Code Form is subject to the terms of the Mozilla Public
# License, v. 2.0. If a copy of the MPL was not distributed with this
# file, You can obtain one at http://mozilla.org/MPL/2.0/.
#
# Copyright 2019 Joyent, Inc.
#

#
# Call this to move a repo out of cr.joyent.us (Gerrit) and set it up in GitHub.
#
# This is a very *manual* script. It does *some* of the work, but often just
# provides some info and prompts to continue when you do the appropriate work.
#
# Prerequisites:
# - You probably need to be setup as trent has his tooling for now.
#
# Usage:
#   ./bin/move-a-repo REPO-NAME
#
# Example:
#   ./bin/move-a-repo joyent/sdc-manta
#

if [[ -n "$TRACE" ]]; then
    export PS4='[\D{%FT%TZ}] ${BASH_SOURCE}:${LINENO}: ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'
    set -o xtrace
fi
set -o errexit
set -o pipefail

VERSION=1.0.1


# ---- support functions

function fatal
{
    echo "$0: fatal error: $*"
    exit 1
}

function errexit
{
    [[ $1 -ne 0 ]] || exit 0
    fatal "error exit status $1"
}

function usage
{
    echo "Usage: ./move-a-repo REPO-NAME"
}


# ---- mainline

trap 'errexit $?' EXIT

TOP=$(cd $(dirname $0)/../; pwd)

JSON=$(which json)
[[ -n "$JSON" ]] || fatal "'json' is not on your PATH"

while getopts "hy" opt
do
    case "$opt" in
        h)
            usage
            exit 0
            ;;
        *)
            usage
            fatal "unknown option: -$opt"
            exit 1
            ;;
    esac
done
shift $(( $OPTIND - 1 ))

repoName=$1
[[ -n "$repoName" ]] || fatal "missing REPO-NAME argument"
[[ ${repoName} == joyent/* ]] \
    || fatal "cannot move '$repoName', it isn't under 'joyent/'"

# Working temp dir.
wrkDir=/var/tmp/move-a-repo-$(date '+%Y%m%dT%H%M%S')
mkdir $wrkDir

echo "# https://github.com/$repoName"

baseName=$(basename $repoName)
echo ""
echo "## Move open CRs for $repoName"
while true; do
    ssh -o ConnectTimeout=5 cr gerrit query --format=JSON -- is:open project:$repoName \
        | (grep -v '"type":"stats"' || true) \
        | json -ga project url owner.email subject > $wrkDir/open-crs.txt
    if [[ -s $wrkDir/open-crs.txt ]]; then
        cat $wrkDir/open-crs.txt
        echo ""
        nOpenCrs=$(cat $wrkDir/open-crs.txt | wc -l | awk '{print $1}')
        echo "There are $nOpenCrs open CRs for '$repoName'."
        echo "Press 'Enter' when those are moved to PRs."
        read </dev/tty
    else
        echo "(no open CRs)"
        break
    fi
done

echo ""
echo "## Update 'not use GitHub PRs' possible hits in README.md et al"
checkDir=$HOME/all/$baseName
if [[ ! -d $checkDir ]]; then
    checkDir=$HOME/joy/$baseName
fi
if [[ ! -d $checkDir ]]; then
    fatal "cannot find a clone of $repoName to check for Gerrit doc hits"
fi
echo "Checking '$checkDir' for candidate hits:"
(cd $checkDir && (rg -g '!deps' 'not use GitHub PRs' || true))
(cd $checkDir && (rg -g '!deps' 'cr.joyent.us' || true))
cat <<EOM

If there were candidate hits, please create a PR to update those:
    cd ~/joy/$baseName
    giddyup
    vi README.md
    git checkout -b TOOLS-2327
    git ci -am "TOOLS-2327 move repos out of Gerrit (drop referral to Gerrit for CR)"
    hub pull-request -p -o --no-edit

EOM
read -p "Print 'Enter' when done" </dev/tty

echo ""
echo "## Set GitHub repo branch protection (via 'jr gh set-branch-protection')"
jr gh set-branch-protection $baseName
read -p "Press 'Enter' to continue" </dev/tty

echo ""
echo "## Turn off merge commits"
echo "Opening 'https://github.com/$repoName/settings' so you can tweak settings"
open https://github.com/$repoName/settings
read -p "Press 'Enter' when done" </dev/tty

echo ""
echo "## Hide the repo in Gerrit"
open "https://cr.joyent.us/#/admin/projects/$repoName"
read -p "Print 'Enter' when done (set 'State: Hidden', then 'Save Changes')" </dev/tty

# Update jenkins job if relevant
jenkinsJob=$(jr list -l mg -Ho labels.mg $baseName)
if [[ -n $jenkinsJob ]]; then
    echo ""
    echo "## Update the Jenkins job (drop gerrit BRANCH ref, and cr.joyent.us repo)"
    open "https://jenkins.joyent.us/job/$jenkinsJob/configure"
    read -p "Press 'Enter' when done" </dev/tty
fi

#echo ""
#echo "## Add a comment to TOOLS-2327 that this repo is moved"
#open https://jira.joyent.us/browse/TOOLS-2327
#read -p "Press 'Enter' when done" </dev/tty

echo ""
echo "Successfully moved repo '$repoName' to https://github.com/$repoName"