CI: different tactic for notifications

.github/workflows/push.yml

@@ -85,3 +85,11 @@ jobs:
         if: ${{ failure() && github.repository == 'calamares/calamares' }}
         run: |
             curl -s -XPOST -d '{"msgtype":"m.text", "body": "FAIL ${{ github.workflow }} in ${{ github.repository }} ${{ github.actor }} on ${{ github.event.ref }}\n.. ${{ steps.pre_build.outputs.message }}\n.. DIFF ${{ github.event.compare }}" }' 'https://matrix.org/_matrix/client/r0/rooms/%21${{ secrets.MATRIX_ROOM }}/send/m.room.message?access_token=${{ secrets.MATRIX_TOKEN }}' > /dev/null
+      - name: "notify: check"
+        env:
+          MATRIX_TOKEN: ${{ secrets.MATRIX_TOKEN }}
+          MATRIX_ROOM: ${{ secrets.MATRIX_ROOM }}
+        run: |
+          "$SRCDIR/ci/notify.sh" OK '${{ github.workflow }}' '${{ github.repository }}' '${{ github.actor }}' '${{ github.event.ref }}' \
+            '(test)${{ steps.pre_build.outputs.message }}' \
+            '${{ github.event.compare }}'

ci/notify.sh

@@ -0,0 +1,55 @@
+#! /bin/sh
+#
+# SPDX-FileCopyrightText: 2021 Adriaan de Groot <groot@kde.org>
+# SPDX-License-Identifier: BSD-2-Clause
+#
+###
+#
+# Sends a notification to wherever the notifications need to be sent.
+#
+# Called with the following environment (for tokens / secrets):
+#	MATRIX_ROOM
+#	MATRIX_TOKEN
+#
+# Called with the following arguments (in order):
+#	- "OK" or "FAIL"
+#	- github.workflow
+#	- github.repository
+#	- github.actor
+#	- github.event.ref
+#	- commit-message-summary (produced in the workflow)
+#	- github.event.compare
+#
+
+test -z "$MATRIX_ROOM" && { echo "! No secrets" ; exit 1 ; }
+test -z "$MATRIX_TOKEN" && { echo "! No secrets" ; exit 1 ; }
+
+STATUS="$1"
+
+WORKFLOW="$2"
+REPOSITORY="$3"
+ACTOR="$4"
+EVENT="$5"
+SUMMARY="$6"
+COMPARE="$7"
+
+test "x$STATUS" = "xOK" -o "x$STATUS" = "xFAIL" || { echo "! Invalid status" ; exit 1 ; }
+
+test -z "$WORKFLOW" && { echo "! No event data" ; exit 1 ; }
+test -z "$REPOSITORY" && { echo "! No event data" ; exit 1 ; }
+test -z "$ACTOR" && { echo "! No event data" ; exit 1 ; }
+test -z "$EVENT" && { echo "! No event data" ; exit 1 ; }
+# It's ok for summary or the compare URL to be empty
+
+url="https://matrix.org/_matrix/client/r0/rooms/%21${MATRIX_ROOM}/send/m.room.message?access_token=${MATRIX_TOKEN}"
+
+status_line="${STATUS} ${WORKFLOW} in ${REPOSITORY} ${ACTOR} on ${EVENT}"
+summary_line=""
+compare_line=""
+
+test -n "$SUMMARY" && summary_line="\n.. ${SUMMARY}"
+test -n "$COMPARE" && compare_line="\n.. DIFF ${COMPARE}"
+
+message_data=$(jq -Rs --arg body "${status_line}${summary_line}${compare_line}" '{"msgtype": "m.text", $body}' < /dev/null)
+
+curl -s -XPOST -d "$message_data" "$url" > /dev/null