From 0cb72d21e879c96a02bcd450c5b61e9cc3a611d9 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Pawe=C5=82=20Krupa?= <pawel@krupa.net.pl>
Date: Fri, 30 Nov 2018 11:01:56 +0200
Subject: auto-label PRs and minor cleanup (#4795)

---
 .travis/labeler.sh | 84 ++++++++++++++++++++++++++++++++++++++++++------------
 1 file changed, 65 insertions(+), 19 deletions(-)

(limited to '.travis')

diff --git a/.travis/labeler.sh b/.travis/labeler.sh
index 770b2f747c..50c77cc500 100755
--- a/.travis/labeler.sh
+++ b/.travis/labeler.sh
@@ -4,30 +4,76 @@
 # It will soon be deprecated by GitHub Actions so no futher development on it is planned.
 
 if [ "$GITHUB_TOKEN" == "" ]; then
-    echo "GITHUB_TOKEN is needed"
-    exit 1
+	echo "GITHUB_TOKEN is needed"
+	exit 1
 fi
 
 # Download hub
-HUB_VERSION=${HUB_VERSION:-"2.5.1"}
-wget "https://github.com/github/hub/releases/download/v${HUB_VERSION}/hub-linux-amd64-${HUB_VERSION}.tgz" -O "/tmp/hub-linux-amd64-${HUB_VERSION}.tgz"
-tar -C /tmp -xvf "/tmp/hub-linux-amd64-${HUB_VERSION}.tgz" &>/dev/null
-export PATH=$PATH:"/tmp/hub-linux-amd64-${HUB_VERSION}/bin"
+if ! [ -x "$(command -v hub)" ]; then
+	HUB_VERSION=${HUB_VERSION:-"2.5.1"}
+	wget "https://github.com/github/hub/releases/download/v${HUB_VERSION}/hub-linux-amd64-${HUB_VERSION}.tgz" -O "/tmp/hub-linux-amd64-${HUB_VERSION}.tgz"
+	tar -C /tmp -xvf "/tmp/hub-linux-amd64-${HUB_VERSION}.tgz" &>/dev/null
+	export PATH=$PATH:"/tmp/hub-linux-amd64-${HUB_VERSION}/bin"
+fi
 
 echo "Looking up available labels"
-LABELS_FILE=/tmp/exclude_labels
-hub issue labels > $LABELS_FILE
+LABELS_FILE=/tmp/labels
+hub issue labels >$LABELS_FILE
 
 for STATE in "open" "closed"; do
-  for ISSUE in $(hub issue -f "%I %l%n" -s "$STATE" -d "$(date +%F -d '1 day ago')" | grep -v -f $LABELS_FILE); do
-    echo "Processing $STATE issue no. $ISSUE"
-    URL="https://api.github.com/repos/netdata/netdata/issues/$ISSUE"
-    BODY="$(curl "${URL}" | jq .body 2>/dev/null)"
-    case "${BODY}" in
-      *"# Question summary"* ) curl -H "Authorization: token $GITHUB_TOKEN" -d '{"labels":["question"]}' -X PATCH "${URL}" ;;
-      *"# Bug report summary"* ) curl -H "Authorization: token $GITHUB_TOKEN" -d '{"labels":["needs triage","bug"]}' -X PATCH "${URL}" ;;
-      *"# Feature idea summary"* ) curl -H "Authorization: token $GITHUB_TOKEN" -d '{"labels":["needs triage","feature request"]}' -X PATCH "${URL}" ;;
-      * ) curl -H "Authorization: token $GITHUB_TOKEN" -d '{"labels":["needs triage"]}' -X PATCH "${URL}" ;;
-    esac
-  done
+	for ISSUE in $(hub issue -f "%I %l%n" -s "$STATE" -d "$(date +%F -d '1 day ago')" | grep -v -f $LABELS_FILE); do
+		echo "Processing $STATE issue no. $ISSUE"
+		URL="https://api.github.com/repos/netdata/netdata/issues/$ISSUE"
+		BODY="$(curl "${URL}" 2>/dev/null | jq .body)"
+		case "${BODY}" in
+		*"# Question summary"*) curl -H "Authorization: token $GITHUB_TOKEN" -d '{"labels":["question"]}' -X PATCH "${URL}" ;;
+		*"# Bug report summary"*) curl -H "Authorization: token $GITHUB_TOKEN" -d '{"labels":["needs triage","bug"]}' -X PATCH "${URL}" ;;
+		*"# Feature idea summary"*) curl -H "Authorization: token $GITHUB_TOKEN" -d '{"labels":["needs triage","feature request"]}' -X PATCH "${URL}" ;;
+		*) curl -H "Authorization: token $GITHUB_TOKEN" -d '{"labels":["needs triage"]}' -X PATCH "${URL}" ;;
+		esac
+	done
+done
+
+NEW_LABELS=/tmp/new_labels
+for PR in $(hub pr list -s all -f "%I %l%n" -L 10); do
+	echo "-------------------------------------------------------"
+	echo "Processing PR #$PR"
+	echo "" >$NEW_LABELS
+	NEW_SET=""
+	URL="https://api.github.com/repos/netdata/netdata/issues/$PR"
+	DIFF_URL="https://github.com/netdata/netdata/pull/$PR.diff"
+	for FILE in $(curl -L "${DIFF_URL}" 2>/dev/null | grep "diff --git a/" | cut -d' ' -f3 | sort | uniq); do
+		LABEL=""
+		case "${FILE}" in
+		*".md") AREA="docs" ;;
+		*"/collectors/python.d.plugin/"*) AREA="external/python" ;;
+		*"/collectors/charts.d.plugin/"*) AREA="external" ;;
+		*"/collectors/node.d.plugin/"*) AREA="external" ;;
+		*"/.travis"*) AREA="ci" ;;
+		*"/.github/"*) AREA="ci" ;;
+		*"/build/"*) AREA="packaging" ;;
+		*"/contrib/"*) AREA="packaging" ;;
+		*"/diagrams/"*) AREA="docs" ;;
+		*"/installer/"*) AREA="packaging" ;;
+		*"/makeself/"*) AREA="packaging" ;;
+		*"/system/"*) AREA="packaging" ;;
+		*"/netdata-installer.sh"*) AREA="packaging" ;;
+		*) AREA=$(echo "$FILE" | cut -d'/' -f2) ;;
+		esac
+		LABEL="area/$AREA"
+		echo "Selecting $LABEL due to $FILE"
+		if grep "$LABEL" "$LABELS_FILE"; then
+			echo "$LABEL" >>$NEW_LABELS
+			if [[ $LABEL =~ "external" ]]; then
+				echo "area/collectors" >>$NEW_LABELS
+			fi
+		else
+			echo "Label '$LABEL' not available"
+		fi
+	done
+	NEW_SET=$(sort $NEW_LABELS | uniq | grep -v "^$" | sed -e 's/^/"/g;s/$/",/g' | tr -d '\n' | sed 's/.\{1\}$//')
+	if [ ! -z "$NEW_SET" ]; then
+		echo "Assigning labels: ${NEW_SET}"
+		curl -H "Authorization: token $GITHUB_TOKEN" -d "{\"labels\":[${NEW_SET}]}" -X PATCH "${URL}" &>/dev/null
+	fi
 done
-- 
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