1 files changed, 70 insertions, 0 deletions
diff --git a/scripts/prepare_release.sh b/scripts/prepare_release.sh
new file mode 100755
index 00000000000..3b63ed9e6c4
--- /dev/null
+++ b/scripts/prepare_release.sh
@@ -0,0 +1,70 @@
+#!/bin/bash
+
+print_usage()
+{
+    cat <<EOF
+Usage: $0 [OPTION]...
+Prepare the source tree for a release.
+
+Options:
+  -u    Prepare for development (undo the release preparation)
+EOF
+}
+
+# Copyright The Mbed TLS Contributors
+# SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+
+set -eu
+
+if [ $# -ne 0 ] && [ "$1" = "--help" ]; then
+    print_usage
+    exit
+fi
+
+unrelease= # if non-empty, we're in undo-release mode
+while getopts u OPTLET; do
+    case $OPTLET in
+        u) unrelease=1;;
+        \?)
+            echo 1>&2 "$0: unknown option: -$OPTLET"
+            echo 1>&2 "Try '$0 --help' for more information."
+            exit 3;;
+    esac
+done
+
+
+
+#### .gitignore processing ####
+
+GITIGNORES=$(find . -name ".gitignore")
+for GITIGNORE in $GITIGNORES; do
+    if [ -n "$unrelease" ]; then
+        sed -i '/###START_COMMENTED_GENERATED_FILES###/,/###END_COMMENTED_GENERATED_FILES###/s/^#//' $GITIGNORE
+        sed -i 's/###START_COMMENTED_GENERATED_FILES###/###START_GENERATED_FILES###/' $GITIGNORE
+        sed -i 's/###END_COMMENTED_GENERATED_FILES###/###END_GENERATED_FILES###/' $GITIGNORE
+    else
+        sed -i '/###START_GENERATED_FILES###/,/###END_GENERATED_FILES###/s/^/#/' $GITIGNORE
+        sed -i 's/###START_GENERATED_FILES###/###START_COMMENTED_GENERATED_FILES###/' $GITIGNORE
+        sed -i 's/###END_GENERATED_FILES###/###END_COMMENTED_GENERATED_FILES###/' $GITIGNORE
+    fi
+done
+
+
+
+#### Build scripts ####
+
+# GEN_FILES defaults on (non-empty) in development, off (empty) in releases
+if [ -n "$unrelease" ]; then
+    r=' yes'
+else
+    r=''
+fi
+sed -i 's/^\(GEN_FILES[ ?:]*=\)\([^#]*\)/\1'"$r/" Makefile */Makefile
+
+# GEN_FILES defaults on in development, off in releases
+if [ -n "$unrelease" ]; then
+    r='ON'
+else
+    r='OFF'
+fi
+sed -i '/[Oo][Ff][Ff] in development/! s/^\( *option *( *GEN_FILES  *"[^"]*"  *\)\([A-Za-z0-9][A-Za-z0-9]*\)/\1'"$r/" CMakeLists.txt