From feceea4413b84f478e6a0888cdfab4be1c80767a Mon Sep 17 00:00:00 2001
From: Justin Pryzby <pryzbyj@telsasoft.com>
Date: Sun, 20 Feb 2022 15:01:59 -0600
Subject: [PATCH 6/7] wip: cirrus/windows: add compiler_warnings_script

I'm not sure how to write this test in windows shell; it's also not easy to
write it in posix sh, since windows shell is somehow interpretting && and ||...

ci-os-only: windows

https://cirrus-ci.com/task/6183879907213312
https://cirrus-ci.com/task/4876271443247104
---
 .cirrus.yml                            |  9 ++++++++-
 src/tools/ci/windows-compiler-warnings | 16 ++++++++++++++++
 2 files changed, 24 insertions(+), 1 deletion(-)
 create mode 100755 src/tools/ci/windows-compiler-warnings

diff --git a/.cirrus.yml b/.cirrus.yml
index d9136365724..6f05d420c85 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -380,7 +380,8 @@ task:
     # ForceNoAlign prevents msbuild from introducing line-breaks for long lines
     # disable file tracker, we're never going to rebuild, and it slows down the
     #   build
-    MSBFLAGS: -m -verbosity:minimal "-consoleLoggerParameters:Summary;ForceNoAlign" /p:TrackFileAccess=false -nologo
+    # -fileLoggerParameters1: write to msbuild.warn.log.
+    MSBFLAGS: -m -verbosity:minimal "-consoleLoggerParameters:Summary;ForceNoAlign" /p:TrackFileAccess=false -nologo -fileLoggerParameters1:warningsonly;logfile=msbuild.warn.log
 
     # If tests hang forever, cirrus eventually times out. In that case log
     # output etc is not uploaded, making the problem hard to debug. Of course
@@ -456,6 +457,12 @@ task:
     cd src/tools/msvc
     %T_C% perl vcregress.pl ecpgcheck
 
+  # These should be last, so all the important checks are always run
+  always:
+    # Success if the file doesn't exist or is empty, else fail
+    compiler_warnings_script:
+      - sh src\tools\ci\windows-compiler-warnings msbuild.warn.log
+
   on_failure:
     <<: *on_failure
     crashlog_artifacts:
diff --git a/src/tools/ci/windows-compiler-warnings b/src/tools/ci/windows-compiler-warnings
new file mode 100755
index 00000000000..d6f9a1fc569
--- /dev/null
+++ b/src/tools/ci/windows-compiler-warnings
@@ -0,0 +1,16 @@
+#! /bin/sh
+# Success if the given file doesn't exist or is empty, else fail
+# This is a separate file only to avoid dealing with windows shell quoting and escaping.
+set -e
+
+fn=$1
+
+if [ -s "$fn" ]
+then
+	# Display the file's content, then exit indicating failure
+	cat "$fn"
+	exit 1
+else
+	# Success
+	exit 0
+fi
-- 
2.17.1