From d25f65c565b2dee5d18d1f3a0d5b370e0d9c9c56 Mon Sep 17 00:00:00 2001
From: Julien Cretin <cretin@google.com>
Date: Thu, 5 Aug 2021 11:26:55 +0200
Subject: [PATCH] Add tool for applying/saving Tock patches

---
 maintainers/patches                           | 82 +++++++++++++++++++
 .../reproduce_board.sh                        |  0
 .../reproduce_hashes.sh                       |  0
 .../update_hashes.sh                          |  0
 4 files changed, 82 insertions(+)
 create mode 100755 maintainers/patches
 rename reproduce_board.sh => maintainers/reproduce_board.sh (100%)
 rename reproduce_hashes.sh => maintainers/reproduce_hashes.sh (100%)
 rename update_hashes.sh => maintainers/update_hashes.sh (100%)

diff --git a/maintainers/patches b/maintainers/patches
new file mode 100755
index 0000000..89b3e52
--- /dev/null
+++ b/maintainers/patches
@@ -0,0 +1,82 @@
+#!/bin/zsh
+
+PROGRAM=$0
+
+success() {
+  echo "\e[1;32mDone:\e[m $1"
+  exit 0
+}
+
+fail() {
+  echo "\e[1;31mError:\e[m $1"
+  exit 1
+}
+
+help() {
+  cat <<EOF
+Usage: $PROGRAM {apply|save}
+
+  apply       Applies the patches to the Tock submodule.
+  save        Saves the Tock submodule to the patches.
+EOF
+  exit 0
+}
+
+commit() {
+  local message=$1
+  git add .
+  git commit -qm$message
+}
+
+get_root() {
+  git ls-tree HEAD:third_party | sed -n 's/^.* \([^ ]\+\)\ttock$/\1/p'
+}
+
+get_head() {
+  git rev-parse HEAD
+}
+
+apply() {
+  git submodule -q update third_party/tock
+  ( cd third_party/tock
+    git reset -q --hard
+    git clean -qfxd
+    rsync -a ../../boards .
+    commit '00-boards'
+    for file in ../../patches/tock/*; do
+      patch -sp1 < $file
+      commit "${${file#../../patches/tock/}%.patch}"
+    done
+  )
+  success 'Applied the patches to the Tock submodule.'
+}
+
+save() {
+  local root=$(get_root)
+  ( cd third_party/tock
+    [[ -z "$(git status -s)" ]] || fail 'The Tock submodule is not clean.'
+    rm ../../patches/tock/*.patch
+    for file in $(git format-patch $root); do
+      sed -n '/^diff/,$p' $file | head -n-3 > ../../patches/tock/${file#*-}
+    done
+    git clean -qfxd
+    top=$(get_head)
+    git checkout -q $root
+    rm -r boards
+    patch -sp1 < ../../patches/tock/00-boards.patch
+    rm ../../patches/tock/00-boards.patch
+    rsync -a --delete boards ../..
+    git reset -q --hard
+    git clean -qfxd
+    git checkout -q $top
+  ) || exit
+  success 'Saved the Tock submodule to the patches.'
+}
+
+[[ $(basename $PWD) == OpenSK ]] || fail 'Not running from OpenSK directory.'
+[[ $# -eq 1 ]] || help
+case $1 in
+  apply) apply ;;
+  save) save ;;
+  *) fail 'Unexpected argument. Run without argument for help.' ;;
+esac
diff --git a/reproduce_board.sh b/maintainers/reproduce_board.sh
similarity index 100%
rename from reproduce_board.sh
rename to maintainers/reproduce_board.sh
diff --git a/reproduce_hashes.sh b/maintainers/reproduce_hashes.sh
similarity index 100%
rename from reproduce_hashes.sh
rename to maintainers/reproduce_hashes.sh
diff --git a/update_hashes.sh b/maintainers/update_hashes.sh
similarity index 100%
rename from update_hashes.sh
rename to maintainers/update_hashes.sh