From 3c5ffa19fdb214930541564b233dc0525e451579 Mon Sep 17 00:00:00 2001
From: Wojtek Zieba <wojtek.zieba@automattic.com>
Date: Fri, 2 Aug 2024 13:18:48 +0200
Subject: [PATCH] Introduce `merge_junit` script

To improve performance of Android unit tests collection. Originated it https://github.com/woocommerce/woocommerce-android/pull/12064
---
 .idea/.gitignore                          |  8 +++++
 .idea/a8c-ci-toolkit-buildkite-plugin.iml |  9 +++++
 .idea/misc.xml                            |  6 ++++
 .idea/modules.xml                         |  8 +++++
 .idea/vcs.xml                             |  6 ++++
 bin/merge_junit.sh                        | 40 +++++++++++++++++++++++
 6 files changed, 77 insertions(+)
 create mode 100644 .idea/.gitignore
 create mode 100644 .idea/a8c-ci-toolkit-buildkite-plugin.iml
 create mode 100644 .idea/misc.xml
 create mode 100644 .idea/modules.xml
 create mode 100644 .idea/vcs.xml
 create mode 100755 bin/merge_junit.sh

diff --git a/.idea/.gitignore b/.idea/.gitignore
new file mode 100644
index 00000000..13566b81
--- /dev/null
+++ b/.idea/.gitignore
@@ -0,0 +1,8 @@
+# Default ignored files
+/shelf/
+/workspace.xml
+# Editor-based HTTP Client requests
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml
diff --git a/.idea/a8c-ci-toolkit-buildkite-plugin.iml b/.idea/a8c-ci-toolkit-buildkite-plugin.iml
new file mode 100644
index 00000000..d6ebd480
--- /dev/null
+++ b/.idea/a8c-ci-toolkit-buildkite-plugin.iml
@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>
\ No newline at end of file
diff --git a/.idea/misc.xml b/.idea/misc.xml
new file mode 100644
index 00000000..72991755
--- /dev/null
+++ b/.idea/misc.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="zulu-17" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/modules.xml b/.idea/modules.xml
new file mode 100644
index 00000000..092013bc
--- /dev/null
+++ b/.idea/modules.xml
@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/a8c-ci-toolkit-buildkite-plugin.iml" filepath="$PROJECT_DIR$/.idea/a8c-ci-toolkit-buildkite-plugin.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file
diff --git a/.idea/vcs.xml b/.idea/vcs.xml
new file mode 100644
index 00000000..35eb1ddf
--- /dev/null
+++ b/.idea/vcs.xml
@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="" vcs="Git" />
+  </component>
+</project>
\ No newline at end of file
diff --git a/bin/merge_junit.sh b/bin/merge_junit.sh
new file mode 100755
index 00000000..b4935373
--- /dev/null
+++ b/bin/merge_junit.sh
@@ -0,0 +1,40 @@
+#!/bin/bash
+
+# Initialize variables
+reports_dir=""
+output_file=""
+
+# Function to show usage
+usage() {
+    echo "Usage: $0 -d <reports_dir> -o <output_file>"
+    exit 1
+}
+
+# Parse command-line options
+while getopts "d:o:" opt; do
+    case $opt in
+        d) reports_dir=$OPTARG ;;
+        o) output_file=$OPTARG ;;
+        ?) usage ;;
+    esac
+done
+
+# Check if both arguments were provided
+if [ -z "$reports_dir" ] || [ -z "$output_file" ]; then
+    usage
+fi
+
+# Write XML header to the output file
+echo '<?xml version="1.0" encoding="UTF-8"?>' > "$output_file"
+echo '<testsuites>' >> "$output_file"
+
+# Merge the content of all input JUnit files in the directory.
+# (Note that in the case of Unit Tests, the JUnit XML files produced by Gradle
+# don't have a parent `<testsuites>` root tag, so there's no need to try and remove it)
+sed '/<\?xml .*\?>/d' "$reports_dir"/*.xml >> "$output_file"
+
+# Close the testsuites tag
+echo '</testsuites>' >> "$output_file"
+
+# Print the result
+echo "Merged XML reports into $output_file"