From a69b9a8962226f48590ee5ea063d66da912b9036 Mon Sep 17 00:00:00 2001
From: =?utf8?q?Petr=20=C5=A0tetiar?= <ynezz@true.cz>
Date: Mon, 22 Aug 2022 15:05:01 +0200
Subject: [PATCH] ci: show build failures directly in job log output
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Instead of waiting for complete workflow finish, then downloading the
artifacts, unpacking them and inspecting them, lets try to make the
build failure immediately visible in the log output:

  ====== Make errors from logs/target/linux/compile.txt ======
  * Legacy (non-UHI/non-FIT) Boards
  *
  Support MIPS SEAD-3 boards (LEGACY_BOARD_SEAD3) [N/y/?] (NEW)
  Error in reading or end of file.

  make[6]: *** [scripts/kconfig/Makefile:77: syncconfig] Error 1
  make[5]: *** [Makefile:616: syncconfig] Error 2
  make[4]: *** [Makefile:736: include/config/auto.conf.cmd] Error 2
  make[3]: *** [Makefile:24: build_dir/target-mipsel-openwrt-linux-musl_musl/linux-ramips_mt7620/linux-5.15.62/.modules] Error 2
  make[2]: *** [Makefile:11: compile] Error 2
  time: target/linux/compile#30.09#11.30#37.92

Signed-off-by: Petr Å tetiar <ynezz@true.cz>
(cherry picked from commit f4ca4187cde01a3e412f10657bec0790d3a4cd94)
---
 .github/workflows/kernel.yml                     |  8 ++++----
 .github/workflows/scripts/show_build_failures.sh | 15 +++++++++++++++
 .github/workflows/tools.yml                      |  2 +-
 3 files changed, 20 insertions(+), 5 deletions(-)
 create mode 100755 .github/workflows/scripts/show_build_failures.sh

diff --git a/.github/workflows/kernel.yml b/.github/workflows/kernel.yml
index 4f8c6b9317..db4c6c7319 100644
--- a/.github/workflows/kernel.yml
+++ b/.github/workflows/kernel.yml
@@ -146,22 +146,22 @@ jobs:
       - name: Build tools
         shell: su buildbot -c "sh -e {0}"
         working-directory: openwrt
-        run: make tools/install -j$(nproc) BUILD_LOG=1
+        run: make tools/install -j$(nproc) BUILD_LOG=1 || ret=$? .github/workflows/scripts/show_build_failures.sh
 
       - name: Build toolchain
         shell: su buildbot -c "sh -e {0}"
         working-directory: openwrt
-        run: make toolchain/install -j$(nproc) BUILD_LOG=1
+        run: make toolchain/install -j$(nproc) BUILD_LOG=1 || ret=$? .github/workflows/scripts/show_build_failures.sh
 
       - name: Build Kernel
         shell: su buildbot -c "sh -e {0}"
         working-directory: openwrt
-        run: make target/compile -j$(nproc) BUILD_LOG=1
+        run: make target/compile -j$(nproc) BUILD_LOG=1 || ret=$? .github/workflows/scripts/show_build_failures.sh
 
       - name: Build Kernel Kmods
         shell: su buildbot -c "sh -e {0}"
         working-directory: openwrt
-        run: make package/linux/compile -j$(nproc) BUILD_LOG=1
+        run: make package/linux/compile -j$(nproc) BUILD_LOG=1 || ret=$? .github/workflows/scripts/show_build_failures.sh
 
       - name: Upload logs
         if: failure()
diff --git a/.github/workflows/scripts/show_build_failures.sh b/.github/workflows/scripts/show_build_failures.sh
new file mode 100755
index 0000000000..14f699c93d
--- /dev/null
+++ b/.github/workflows/scripts/show_build_failures.sh
@@ -0,0 +1,15 @@
+#!/bin/bash
+
+original_exit_code="${ret:-1}"
+log_dir_path="${1:-logs}"
+context="${2:-10}"
+
+show_make_build_errors() {
+	grep -slr 'make\[[[:digit:]]\].*Error [[:digit:]]$' "$log_dir_path" | while IFS= read -r log_file; do
+		printf "====== Make errors from %s ======\n" "$log_file";
+		grep -r -C"$context" 'make\[[[:digit:]]\].*Error [[:digit:]]$' "$log_file" ;
+	done
+}
+
+show_make_build_errors
+exit "$original_exit_code"
diff --git a/.github/workflows/tools.yml b/.github/workflows/tools.yml
index 4e423fdd62..b97f0599e2 100644
--- a/.github/workflows/tools.yml
+++ b/.github/workflows/tools.yml
@@ -123,7 +123,7 @@ jobs:
       - name: Build tools
         run: |
           cd "$WORKPATH"
-          make tools/install -j$(nproc) BUILD_LOG=1
+          make tools/install -j$(nproc) BUILD_LOG=1 || ret=$? .github/workflows/scripts/show_build_failures.sh
 
       - name: Move logs to GITHUB_WORKSPACE
         if: always()
-- 
2.30.2