From 5f11270aa970cd6beff1faf1d1d7c35258946519 Mon Sep 17 00:00:00 2001
From: Quentin Manfroi <quentin.manfroi@fr.clara.net>
Date: Sat, 3 Aug 2019 01:57:12 +0200
Subject: [PATCH] MON-490 add script to generate CHANGELOG.md

---
 scripts/changelog.sh | 69 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 69 insertions(+)
 create mode 100755 scripts/changelog.sh

diff --git a/scripts/changelog.sh b/scripts/changelog.sh
new file mode 100755
index 0000000..af986ed
--- /dev/null
+++ b/scripts/changelog.sh
@@ -0,0 +1,69 @@
+#/bin/bash
+set -euo pipefail
+
+source "$(dirname $0)/utils.sh"
+goto_root
+
+if [ $# -eq 0 ]; then
+    echo "Target tag is required as parameter"
+    exit 1
+fi
+
+if [ -z ${JIRA_API_TOKEN:-} ]; then
+    echo "Environment variable JIRA_API_TOKEN needs to be defined: https://confluence.atlassian.com/cloud/api-tokens-938839638.html"
+    exit 2
+fi
+
+if [ -z ${JIRA_LOGIN:-} ]; then
+    echo "Environment variable JIRA_LOGIN needs to be defined: jira user email"
+    exit 3
+fi
+
+if ! command -v jira >/dev/null; then
+    echo "go-jira command is required: https://github.com/go-jira/jira#install"
+fi
+
+TAG_TARGET=$1
+TAG_SOURCE=${TAG_SOURCE:-$(git describe --tags --abbrev=0)}
+JIRA_ENDPOINT=${JIRA_ENDPOINT:-https://claranet-morea.atlassian.net}
+JIRA_STATUS=${JIRA_STATUS:-Done Closed}
+SAVEIFS=$IFS
+IFS=$(echo -en "\n\b")
+TMP=$(mktemp -d)
+
+err() {
+    rm -fr ${TMP}
+    IFS=$SAVEIFS
+}
+trap 'err $LINENO' ERR TERM EXIT INT
+
+mkdir -p ${HOME}/.jira.d/templates
+cat > ${HOME}/.jira.d/templates/changelog <<EOF
+{{ .fields.issuetype.name }};{{ .key }};{{if .fields.status -}}{{ .fields.status.name }}{{end -}};{{ .fields.summary }}
+EOF
+
+TMP_ISSUES=$TMP/issues.txt
+for commit in $(git log $(git describe --tags --abbrev=0)..HEAD --oneline); do
+    [[ $commit =~ ^.*(MON-[0-9]+).*$ ]] && echo "${BASH_REMATCH[1]}"
+done | sort -u > $TMP_ISSUES
+
+TMP_CHANGELOG=${TMP}/changelog.md
+echo -e "\n# $TAG_TARGET ($(LANG=eng date +"%B %d, %Y"))" >> $TMP_CHANGELOG
+for issue in $(cat $TMP_ISSUES); do
+    IFS=';' read -r type issue status summary < <(jira --endpoint=${JIRA_ENDPOINT} --login=${JIRA_LOGIN} view $issue --template=changelog)
+    if [[ "$JIRA_STATUS" == *"$status"* ]]; then
+        if ! grep -q "^## $type" $TMP_CHANGELOG; then 
+            echo -e "\n## $type\n" >> $TMP_CHANGELOG
+        fi
+        echo "*   [[$issue](${JIRA_ENDPOINT}/browse/${issue})] - $summary" >> $TMP_CHANGELOG
+    else
+        echo "Ignore $issue with status \"$status\" not in [$JIRA_STATUS] ($summary)"
+    fi
+done
+
+cat $TMP_CHANGELOG
+read -p 'Add this to CHANGELOG.md ? (y/n): ' -r answer
+if [[ "$answer" == "y" ]]; then
+    echo -e "$(cat $TMP_CHANGELOG)\n$(cat CHANGELOG.md)" > CHANGELOG.md
+fi
+