From 0bb9db302d2d4a4e8a5be8de1f74ce07d5224826 Mon Sep 17 00:00:00 2001
From: Michael Telatynski <7t3chguy@gmail.com>
Date: Thu, 3 Nov 2022 16:38:26 +0000
Subject: [PATCH] Enable tsc --strict CI to prevent gaining more errors (#9541)

---
 .github/workflows/static_analysis.yaml | 35 ++++++++++++++++++++++++++
 1 file changed, 35 insertions(+)

diff --git a/.github/workflows/static_analysis.yaml b/.github/workflows/static_analysis.yaml
index e711182d19..7cfc499901 100644
--- a/.github/workflows/static_analysis.yaml
+++ b/.github/workflows/static_analysis.yaml
@@ -37,6 +37,41 @@ jobs:
       - name: Typecheck (release mode)
         run: "yarn run lint:types"
 
+  tsc-strict:
+    name: Typescript Strict Error Checker
+    if: github.event_name == 'pull_request'
+    runs-on: ubuntu-latest
+    permissions:
+      pull-requests: read
+      checks: write
+    steps:
+      - uses: actions/checkout@v3
+
+      - name: Get diff lines
+        id: diff
+        uses: Equip-Collaboration/diff-line-numbers@v1.0.0
+        with:
+          include: '["\\.tsx?$"]'
+
+      - name: Detecting files changed
+        id: files
+        uses: futuratrepadeira/changed-files@v4.0.0
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          pattern: '^.*\.tsx?$'
+
+      - uses: t3chguy/typescript-check-action@main
+        with:
+          repo-token: ${{ secrets.GITHUB_TOKEN }}
+          use-check: false
+          check-fail-mode: added
+          output-behaviour: annotate
+          ts-extra-args: '--strict'
+          files-changed: ${{ steps.files.outputs.files_updated }}
+          files-added: ${{ steps.files.outputs.files_created }}
+          files-deleted: ${{ steps.files.outputs.files_deleted }}
+          line-numbers: ${{ steps.diff.outputs.lineNumbers }}
+
   i18n_lint:
     name: "i18n Check"
     uses: matrix-org/matrix-react-sdk/.github/workflows/i18n_check.yml@develop