From d0079ce5545e5635bb5faa79cd14e759806c60e7 Mon Sep 17 00:00:00 2001
From: Robert Schmidt <robert.schmidt@openairinterface.org>
Date: Mon, 25 Jul 2022 16:49:26 +0200
Subject: [PATCH] Add clang-format specific pre-commit hook
---
pre-commit-clang | 54 ++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 54 insertions(+)
create mode 100644 pre-commit-clang
diff --git a/pre-commit-clang b/pre-commit-clang
new file mode 100644
index 00000000000..f7b219a7d56
--- /dev/null
+++ b/pre-commit-clang
@@ -0,0 +1,54 @@
+#!/usr/bin/env bash
+#
+# Runs clang-format on changed regions before commit.
+#
+# To install this, copy it to .git/hooks/pre-commit in your repo.
+# Remaining installation checks/instructions will be printed when you commit.
+#
+
+read -d '' help <<- EOF
+This repository requires you to install the clang-format command. This hook has
+been tested with clang-format-10, so remove all previous versions and reinstall:
+$ sudo apt-get remove clang-format-*
+$ sudo apt-get install clang-format-10
+You should now have clang-format-10 installed. Then, update the configuration
+as follows:
+$ git config --global clangFormat.binary clang-format-10
+$ git config --global clangFormat.style file
+$ git config --global alias.clang-format clang-format-10
+EOF
+
+check_clang_format() {
+ if hash git clang-format 2>/dev/null; then
+ return
+ else
+ echo "SETUP ERROR: no git clang-format executable found, or it is not executable"
+ echo "$help"
+ exit 1
+ fi
+}
+
+check_git_config() {
+ if [[ "$(git config --get clangFormat.binary)" != "clang-format-10" ]]; then
+ echo "SETUP ERROR: git config clangFormat.binary should be \"clang-format-10\"."
+ echo "$help"
+ exit 1
+ fi
+ if [[ "$(git config --get clangFormat.style)" != "file" ]]; then
+ echo "SETUP ERROR: git config clangFormat.style should be \"file\"."
+ echo "$help"
+ exit 1
+ fi
+}
+
+check_clang_format
+check_git_config
+
+readonly out=$(git clang-format -v --diff)
+
+if [[ "$out" == *"no modified files to format"* ]]; then exit 0; fi
+if [[ "$out" == *"clang-format did not modify any files"* ]]; then exit 0; fi
+
+echo "ERROR: the code to be committed is not formatted properly"
+echo "you need to run \"git clang-format\" on your commit"
+exit 1
--
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