From 2ec94082e3c02ada79c9705ee03965c4c48b2424 Mon Sep 17 00:00:00 2001
From: Don Turner <donturner@google.com>
Date: Tue, 21 May 2024 17:21:47 +0100
Subject: [PATCH] Remove the printModulePaths task and read modules direct from
 settings

Change-Id: Ib871afb7e9f5da3a4240e18062fad9e701c218e7
---
 build.gradle.kts        | 10 ----------
 generateModuleGraphs.sh | 15 ++++++++++++++-
 2 files changed, 14 insertions(+), 11 deletions(-)

diff --git a/build.gradle.kts b/build.gradle.kts
index 1790cd202..38778e100 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -49,13 +49,3 @@ plugins {
     alias(libs.plugins.room) apply false
     alias(libs.plugins.module.graph) apply true // Plugin applied to allow module graph generation
 }
-
-// Task to print all the module paths in the project e.g. :core:data
-// Used by module graph generator script
-tasks.register("printModulePaths") {
-    subprojects {
-        if (subprojects.size == 0) {
-            println(this.path)
-        }
-    }
-}
\ No newline at end of file
diff --git a/generateModuleGraphs.sh b/generateModuleGraphs.sh
index fb2d74712..b86d54412 100755
--- a/generateModuleGraphs.sh
+++ b/generateModuleGraphs.sh
@@ -31,6 +31,19 @@ then
     exit 1
 fi
 
+# Check for a version of grep which supports Perl regex.
+# On MacOS the OS installed grep doesn't support Perl regex so check for the existence of the
+# GNU version instead which is prefixed with 'g' to distinguish it from the OS installed version.
+    if grep -P "" /dev/null > /dev/null 2>&1; then
+    GREP_COMMAND=grep
+elif command -v ggrep &> /dev/null; then
+    GREP_COMMAND=ggrep
+else
+    echo "You don't have a version of 'grep' installed which supports Perl regular expressions."
+    echo "On MacOS you can install one using Homebrew with the command: 'brew install grep'"
+    exit 1
+fi
+
 # Initialize an array to store excluded modules
 excluded_modules=()
 
@@ -50,7 +63,7 @@ while [[ $# -gt 0 ]]; do
 done
 
 # Get the module paths
-module_paths=$(./gradlew -q printModulePaths --no-configuration-cache)
+module_paths=$(${GREP_COMMAND} -oP 'include\("\K[^"]+' settings.gradle.kts)
 
 # Ensure the output directory exists
 mkdir -p docs/images/graphs/