git-jirabranch

#!/bin/bash -e

USAGE='<branchname>'
LONG_USAGE='git-jirabranch lets you create a new branch based on a 
JIRA issue and mark the issue as in progress.'

. git-sh-setup

CACHE_FILE=$GIT_DIR/jira.cache

JIRA_SERVER=$(git config jira.server || true)
JIRA_USER=$(git config jira.user || true)
JIRA_PASSWORD=$(git config jira.password || true)

JIRA_CLI=$(git config jira.cli || true)

GIT_USER=$(git config user.name || echo $USER)

JIRA_CMD="$JIRA_CLI --server $JIRA_SERVER --user $JIRA_USER --password $JIRA_PASSWORD"

function get_cached_issue () {
	local ISSUE=$1
	test -f $CACHE_FILE || return 0
	local LINE=`grep ^$ISSUE: $CACHE_FILE`
	test -n "$LINE" || return 0
	ISSUE_DESCR=$(echo $LINE | sed -e "s/^$ISSUE: //")
}

function fail () {
	echo $@
	exit 1
}

# start to work

require_work_tree

BRANCH_NAME=$1
test -n "$BRANCH_NAME" || usage

test -n "$GIT_DIR" || fail "Missing GIT_DIR variable"
test -n "$JIRA_SERVER" || fail "Missing git config variable jira.server (set it with 'git config jira.server ...')"
test -n "$JIRA_CLI" || fail "Missing git config variable jira.cli (set it with 'git config jira.cli ...')"
test -n "$JIRA_USER" || fail "Missing git config variable jira.user (set it with 'git config jira.user ...')"
test -n "$JIRA_PASSWORD" || fail "Missing git config variable jira.password (set it with 'git config jira.password ...')"

[[ $BRANCH_NAME =~ ^[A-Z]+-[0-9]+$ ]] || fail "Branch $BRANCH_NAME does not appear to be a JIRA issue"

echo "Doing a branch for $BRANCH_NAME"

$JIRA_CMD --action updateIssue --issue $BRANCH_NAME --assignee $JIRA_USER
$JIRA_CMD --action progressIssue --issue $BRANCH_NAME --step "Start Progress"
$JIRA_CMD --action addComment --issue $BRANCH_NAME --comment "Coding started by $GIT_USER"

# Cache the jira issue title for later cheaper commits
get_cached_issue $BRANCH_NAME
if test -z "$ISSUE_DESCR"
then
	ISSUE_DESCR=`$JIRA_CMD --action getFieldValue --issue $BRANCH_NAME --field Summary | sed -e '1d'`
	echo "$BRANCH_NAME: $ISSUE_DESCR" >> $CACHE_FILE

fi

git checkout -b $BRANCH_NAME

echo "*** You are now on branch $BRANCH_NAME ***"