rocksdb/build_tools/format-diff.sh
Yanqin Jin 6acbbbf9fc Add Github Action for some basic sanity test of PR (#6761)
Summary:
Add Github Action to perform some basic sanity check for PR, inclding the
following.
1) Buck TARGETS file.
On the one hand, The TARGETS file is used for internal buck, and we do not
manually update it. On the other hand, we need to run the buckifier scripts to
update TARGETS whenever new files are added, etc. With this Github Action, we
make sure that every PR does not forget this step. The GH Action uses
a Makefile target called check-buck-targets. Users can manually run `make
check-buck-targets` on local machine.

2) Code format
We use clang-format-diff.py to format our code. The GH Action in this PR makes
sure this step is not skipped. The checking script build_tools/format-diff.sh assumes that `clang-format-diff.py` is executable.
On host running GH Action, it is difficult to download `clang-format-diff.py` and make it
executable. Therefore, we modified build_tools/format-diff.sh to handle the case in which there is a non-executable clang-format-diff.py file in the top-level rocksdb repo directory.

Test Plan (Github and devserver):
Watch for Github Action result in the `Checks` tab.
On dev server
```
make check-format
make check-buck-targets
make check
```
Pull Request resolved: https://github.com/facebook/rocksdb/pull/6761

Test Plan: Watch for Github Action result in the `Checks` tab.

Reviewed By: pdillinger

Differential Revision: D21260209

Pulled By: riversand963

fbshipit-source-id: c646e2f37c6faf9f0614b68aa0efc818cff96787
2020-04-30 19:22:45 -07:00

177 lines
5.3 KiB
Bash
Executable File

#!/usr/bin/env bash
# Copyright (c) Facebook, Inc. and its affiliates. All Rights Reserved.
# If clang_format_diff.py command is not specfied, we assume we are able to
# access directly without any path.
print_usage () {
echo "Usage:"
echo "format-diff.sh [OPTIONS]"
echo "-c: check only."
echo "-h: print this message."
}
while getopts ':ch' OPTION; do
case "$OPTION" in
c)
CHECK_ONLY=1
;;
h)
print_usage
exit 1
;;
?)
print_usage
exit 1
;;
esac
done
if [ -z $CLANG_FORMAT_DIFF ]
then
CLANG_FORMAT_DIFF="clang-format-diff.py"
fi
# Check clang-format-diff.py
if ! which $CLANG_FORMAT_DIFF &> /dev/null
then
if [ ! -f ./clang-format-diff.py ]
then
echo "You didn't have clang-format-diff.py and/or clang-format available in your computer!"
echo "You can download clang-format-diff.py by running: "
echo " curl --location http://goo.gl/iUW1u2 -o ${CLANG_FORMAT_DIFF}"
echo "You can download clang-format by running:"
echo " brew install clang-format"
echo " Or"
echo " apt install clang-format"
echo " This might work too:"
echo " yum install git-clang-format"
echo "Then, move both files (i.e. ${CLANG_FORMAT_DIFF} and clang-format) to some directory within PATH=${PATH}"
echo "and make sure ${CLANG_FORMAT_DIFF} is executable."
exit 128
else
if [ -x ./clang-format-diff.py ]
then
PATH=$PATH:.
else
CLANG_FORMAT_DIFF="python ./clang-format-diff.py"
fi
fi
fi
# Check argparse, a library that clang-format-diff.py requires.
python 2>/dev/null << EOF
import argparse
EOF
if [ "$?" != 0 ]
then
echo "To run clang-format-diff.py, we'll need the library "argparse" to be"
echo "installed. You can try either of the follow ways to install it:"
echo " 1. Manually download argparse: https://pypi.python.org/pypi/argparse"
echo " 2. easy_install argparse (if you have easy_install)"
echo " 3. pip install argparse (if you have pip)"
exit 129
fi
# TODO(kailiu) following work is not complete since we still need to figure
# out how to add the modified files done pre-commit hook to git's commit index.
#
# Check if this script has already been added to pre-commit hook.
# Will suggest user to add this script to pre-commit hook if their pre-commit
# is empty.
# PRE_COMMIT_SCRIPT_PATH="`git rev-parse --show-toplevel`/.git/hooks/pre-commit"
# if ! ls $PRE_COMMIT_SCRIPT_PATH &> /dev/null
# then
# echo "Would you like to add this script to pre-commit hook, which will do "
# echo -n "the format check for all the affected lines before you check in (y/n):"
# read add_to_hook
# if [ "$add_to_hook" == "y" ]
# then
# ln -s `git rev-parse --show-toplevel`/build_tools/format-diff.sh $PRE_COMMIT_SCRIPT_PATH
# fi
# fi
set -e
uncommitted_code=`git diff HEAD`
# If there's no uncommitted changes, we assume user are doing post-commit
# format check, in which case we'll try to check the modified lines vs. the
# facebook/rocksdb.git master branch. Otherwise, we'll check format of the
# uncommitted code only.
if [ -z "$uncommitted_code" ]
then
# Attempt to get name of facebook/rocksdb.git remote.
[ "$FORMAT_REMOTE" ] || FORMAT_REMOTE="$(git remote -v | grep 'facebook/rocksdb.git' | head -n 1 | cut -f 1)"
# Fall back on 'origin' if that fails
[ "$FORMAT_REMOTE" ] || FORMAT_REMOTE=origin
# Use master branch from that remote
[ "$FORMAT_UPSTREAM" ] || FORMAT_UPSTREAM="$FORMAT_REMOTE/master"
# Get the common ancestor with that remote branch. Everything after that
# common ancestor would be considered the contents of a pull request, so
# should be relevant for formatting fixes.
FORMAT_UPSTREAM_MERGE_BASE="$(git merge-base "$FORMAT_UPSTREAM" HEAD)"
# Get the differences
diffs=$(git diff -U0 "$FORMAT_UPSTREAM_MERGE_BASE" | $CLANG_FORMAT_DIFF -p 1)
else
# Check the format of uncommitted lines,
diffs=$(git diff -U0 HEAD | $CLANG_FORMAT_DIFF -p 1)
fi
if [ -z "$diffs" ]
then
echo "Nothing needs to be reformatted!"
exit 0
elif [ $CHECK_ONLY ]
then
echo "Your change has unformatted code. Please run make format!"
exit 1
fi
# Highlight the insertion/deletion from the clang-format-diff.py's output
COLOR_END="\033[0m"
COLOR_RED="\033[0;31m"
COLOR_GREEN="\033[0;32m"
echo -e "Detect lines that doesn't follow the format rules:\r"
# Add the color to the diff. lines added will be green; lines removed will be red.
echo "$diffs" |
sed -e "s/\(^-.*$\)/`echo -e \"$COLOR_RED\1$COLOR_END\"`/" |
sed -e "s/\(^+.*$\)/`echo -e \"$COLOR_GREEN\1$COLOR_END\"`/"
if [[ "$OPT" == *"-DTRAVIS"* ]]
then
exit 1
fi
echo -e "Would you like to fix the format automatically (y/n): \c"
# Make sure under any mode, we can read user input.
exec < /dev/tty
read to_fix
if [ "$to_fix" != "y" ]
then
exit 1
fi
# Do in-place format adjustment.
if [ -z "$uncommitted_code" ]
then
git diff -U0 "$FORMAT_UPSTREAM_MERGE_BASE" | $CLANG_FORMAT_DIFF -i -p 1
else
git diff -U0 HEAD | $CLANG_FORMAT_DIFF -i -p 1
fi
echo "Files reformatted!"
# Amend to last commit if user do the post-commit format check
if [ -z "$uncommitted_code" ]; then
echo -e "Would you like to amend the changes to last commit (`git log HEAD --oneline | head -1`)? (y/n): \c"
read to_amend
if [ "$to_amend" == "y" ]
then
git commit -a --amend --reuse-message HEAD
echo "Amended to last commit"
fi
fi