Enable code format check for PR

.ci/build.groovy

@@ -43,7 +43,7 @@ catchError {
                 stage("Build & Upload") {
                     timeout(time: 70, unit: 'MINUTES') {
                         container("builder") {
-                            sh "NPROC=5 BUILD_BRANCH=${ghprbTargetBranch} release-centos7/build/build-tiflash-ci.sh"
+                            sh "NPROC=5 BUILD_BRANCH=${ghprbTargetBranch} ENABLE_FORMAT_CHECK=true release-centos7/build/build-tiflash-ci.sh"
                             sh "PULL_ID=${ghprbPullId} COMMIT_HASH=${ghprbActualCommit} release-centos7/build/upload-ci-build.sh"
                         }
                     }

README.md

@@ -48,3 +48,12 @@ $ popd
 ```
 
 Now you will get TiFlash binary under `WORKSPACE/tics/build/dbms/src/Server/tiflash`.
+
+### Notice
+
+Before submitting pull request, please use [format-diff.py](format-diff.py) to format source code, otherwise ci-build may raise error.
+```
+# WORKSPACE/tics
+$ python3 format-diff.py --diff_from `git merge-base ${TARGET_REMOTE_BRANCH} HEAD`
+```
+

format-diff.py

@@ -15,11 +15,10 @@ def run_cmd(cmd, show_cmd=False):
 def main():
     default_suffix = ['.cpp', '.h', '.cc', '.hpp']
     parser = argparse.ArgumentParser(description='TiFlash Code Format',
-                                     formatter_class=argparse.RawTextHelpFormatter)
+                                     formatter_class=argparse.ArgumentDefaultsHelpFormatter)
     parser.add_argument('--repo_path', help='path of tics repository', default=os.getcwd())
     parser.add_argument('--suffix',
-                        help='suffix of files to format, split by space, default: {}'.format(' '.join(default_suffix)),
-                        default=' '.join(default_suffix))
+                        help='suffix of files to format, split by space', default=' '.join(default_suffix))
     parser.add_argument('--ignore_suffix', help='ignore files with suffix, split by space')
     parser.add_argument('--diff_from', help='commit hash/branch to check git diff', default='HEAD')
     parser.add_argument('--check_formatted', help='exit -1 if NOT formatted', action='store_true')
@@ -32,7 +31,7 @@ def main():
 
     os.chdir(tics_repo_path)
     files_to_check = run_cmd('git diff HEAD --stat') if args.diff_from == 'HEAD' else run_cmd(
-        'git diff HEAD {} --stat'.format(args.diff_from))
+        'git diff {} --stat'.format(args.diff_from))
     files_to_check = [os.path.join(tics_repo_path, s.split()[0]) for s in files_to_check[:-1]]
     files_to_format = []
     for f in files_to_check:
@@ -55,14 +54,17 @@ def main():
             cmd = 'clang-format -i {}'.format(' '.join(files_to_format))
             if subprocess.Popen(cmd, shell=True, cwd=tics_repo_path).wait():
                 exit(-1)
-            if run_cmd('git diff --stat'):
+            diff_res = run_cmd('git diff --stat')
+            if diff_res:
                 print('Error: found files NOT formatted')
+                print('\n'.join(diff_res[:-1]))
                 exit(-1)
             else:
                 print("Format check passed")
         else:
             cmd = 'clang-format -i {}'.format(' '.join(files_to_format))
             subprocess.Popen(cmd, shell=True, cwd=tics_repo_path).wait()
+            print("Finish code format")
     else:
         print('No file to format')
 

release-centos7/build/build-tiflash-ci.sh

@@ -9,15 +9,27 @@ else
   echo "ccache has been installed"
 fi
 
+command -v clang-format > /dev/null 2>&1
+if [[ $? != 0 ]]; then
+  curl -o "/usr/local/bin/clang-format" http://fileserver.pingcap.net/download/builds/pingcap/tiflash/ci-cache/clang-format
+  chmod +x "/usr/local/bin/clang-format"
+else
+  echo "clang-format has been installed"
+fi
+
 set -ueox pipefail
 
 SCRIPTPATH="$( cd "$(dirname "$0")" ; pwd -P )"
 SRCPATH=${1:-$(cd $SCRIPTPATH/../..; pwd -P)}
 
-# DO NOT enable format check until standards unified
-#curl -o "/usr/local/bin/clang-format" http://fileserver.pingcap.net/download/builds/pingcap/tiflash/ci-cache/clang-format
-#chmod +x "/usr/local/bin/clang-format"
-#python3 ${SRCPATH}/format-diff.py --repo_path "${SRCPATH}" --check_formatted --diff_from `git merge-base origin/master HEAD`
+CMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE:-Debug}
+BUILD_BRANCH=${BUILD_BRANCH:-master}
+ENABLE_FORMAT_CHECK=${ENABLE_FORMAT_CHECK:-false}
+
+if [[ "${ENABLE_FORMAT_CHECK}" == "true" ]]; then
+  python3 ${SRCPATH}/format-diff.py --repo_path "${SRCPATH}" --check_formatted --diff_from `git merge-base origin/${BUILD_BRANCH} HEAD`
+  export ENABLE_FORMAT_CHECK=false
+fi
 
 CI_CCACHE_USED_SRCPATH="/build/tics"
 export INSTALL_DIR=${INSTALL_DIR:-"$SRCPATH/release-centos7/tiflash"}
@@ -33,9 +45,7 @@ fi
 NPROC=${NPROC:-$(nproc || grep -c ^processor /proc/cpuinfo)}
 ENABLE_TEST=${ENABLE_TEST:-1}
 ENABLE_EMBEDDED_COMPILER="FALSE"
-CMAKE_BUILD_TYPE=${CMAKE_BUILD_TYPE:-Debug}
 UPDATE_CCACHE=${UPDATE_CCACHE:-false}
-BUILD_BRANCH=${BUILD_BRANCH:-master}
 BUILD_UPDATE_DEBUG_CI_CCACHE=${BUILD_UPDATE_DEBUG_CI_CCACHE:-false}
 CCACHE_REMOTE_TAR="${BUILD_BRANCH}-${CMAKE_BUILD_TYPE}.tar"
 CCACHE_REMOTE_TAR=$(echo "${CCACHE_REMOTE_TAR}" | tr 'A-Z' 'a-z')