From 237f91a9ef116a83b7d92daf8a492721a888829b Mon Sep 17 00:00:00 2001
From: Agathiyan Bragadeesh <agabra02@e127300.arm.com>
Date: Thu, 6 Jul 2023 18:00:48 +0100
Subject: [PATCH] Add script to manage gitignore anchors

Added scripts which comment and uncomment out patterns relating to
generated files.

Signed-off-by: Agathiyan Bragadeesh <agabra02@e127300.arm.com>
---
 scripts/gitignore_add_generated_files.sh    | 23 +++++++++++++++++++++
 scripts/gitignore_remove_generated_files.sh | 23 +++++++++++++++++++++
 2 files changed, 46 insertions(+)
 create mode 100644 scripts/gitignore_add_generated_files.sh
 create mode 100644 scripts/gitignore_remove_generated_files.sh

diff --git a/scripts/gitignore_add_generated_files.sh b/scripts/gitignore_add_generated_files.sh
new file mode 100644
index 000000000..27c348082
--- /dev/null
+++ b/scripts/gitignore_add_generated_files.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+
+set -eu
+
+GITIGNORES=$(find . -name ".gitignore")
+
+for GITIGNORE in $GITIGNORES; do
+    IN_GEN_BLOCK=false
+    while read -r line; do
+        if [ "$line" = "###START_COMMENTED_GENERATED_FILES###" ]; then
+            IN_GEN_BLOCK=true
+            echo "###START_GENERATED_FILES###"
+        elif [ "$line" = "###END_COMMENTED_GENERATED_FILES###" ]; then
+            IN_GEN_BLOCK=false
+            echo "###END_GENERATED_FILES###"
+        elif $IN_GEN_BLOCK ; then
+            echo "${line:1}"
+        else
+            echo "$line"
+        fi
+    done <$GITIGNORE > "$GITIGNORE.tmp"
+    mv "$GITIGNORE.tmp" $GITIGNORE
+done
diff --git a/scripts/gitignore_remove_generated_files.sh b/scripts/gitignore_remove_generated_files.sh
new file mode 100644
index 000000000..8314b2c23
--- /dev/null
+++ b/scripts/gitignore_remove_generated_files.sh
@@ -0,0 +1,23 @@
+#!/bin/bash
+
+set -eu
+
+GITIGNORES=$(find . -name ".gitignore")
+
+for GITIGNORE in $GITIGNORES; do
+    IN_GEN_BLOCK=false
+    while read -r line; do
+        if [ "$line" = "###START_GENERATED_FILES###" ]; then
+            IN_GEN_BLOCK=true
+            echo "###START_COMMENTED_GENERATED_FILES###"
+        elif [ "$line" = "###END_GENERATED_FILES###" ]; then
+            IN_GEN_BLOCK=false
+            echo "###END_COMMENTED_GENERATED_FILES###"
+        elif $IN_GEN_BLOCK ; then
+            echo "#$line"
+        else
+            echo "$line"
+        fi
+    done <$GITIGNORE > "$GITIGNORE.tmp"
+    mv "$GITIGNORE.tmp" $GITIGNORE
+done