92 lines
2.9 KiB
Bash
Executable file
92 lines
2.9 KiB
Bash
Executable file
#!/usr/bin/env bash
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#
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# Adapted from https://github.com/jidicula/clang-format-action
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###############################################################################
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# check.sh #
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###############################################################################
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# USAGE: ./entrypoint.sh [<path>] [<fallback style>]
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#
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# Checks all C/C++/Protobuf/CUDA files (.h, .H, .hpp, .hh, .h++, .hxx and .c,
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# .C, .cpp, .cc, .c++, .cxx, .proto, .cu) in the provided GitHub repository path
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# (arg1) for conforming to clang-format. If no path is provided or provided path
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# is not a directory, all C/C++/Protobuf/CUDA files are checked. If any files
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# are incorrectly formatted, the script lists them and exits with 1.
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#
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# Define your own formatting rules in a .clang-format file at your repository
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# root. Otherwise, the provided style guide (arg2) is used as a fallback.
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# format_diff function
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# Accepts a filepath argument. The filepath passed to this function must point
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# to a C/C++/Protobuf/CUDA file.
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format_diff() {
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local filepath="$1"
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# Invoke clang-format with dry run and formatting error output
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local_format="$(clang-format \
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--dry-run \
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--Werror \
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--style=file \
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--fallback-style="$FALLBACK_STYLE" \
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"${filepath}")"
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local format_status="$?"
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if [[ ${format_status} -ne 0 ]]; then
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# Append Markdown-bulleted monospaced filepath of failing file to
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# summary file.
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echo "* \`$filepath\`" >>failing-files.txt
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echo "Failed on file: $filepath" >&2
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echo "$local_format" >&2
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exit_code=1 # flip the global exit code
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return "${format_status}"
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fi
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return 0
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}
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CHECK_PATH="$1"
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FALLBACK_STYLE="$2"
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EXCLUDE_REGEX="$3"
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INCLUDE_REGEX="$4"
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# Set the regex to an empty string regex if nothing was provided
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if [[ -z $EXCLUDE_REGEX ]]; then
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EXCLUDE_REGEX="^$"
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fi
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# Set the filetype regex if nothing was provided.
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# Find all C/C++/Protobuf/CUDA files:
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# h, H, hpp, hh, h++, hxx
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# c, C, cpp, cc, c++, cxx
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# ino, pde
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# proto
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# cu
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if [[ -z $INCLUDE_REGEX ]]; then
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INCLUDE_REGEX='^.*\.((((c|C)(c|pp|xx|\+\+)?$)|((h|H)h?(pp|xx|\+\+)?$))|(ino|pde|proto|cu))$'
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fi
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cd "$GITHUB_WORKSPACE" || exit 2
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if [[ ! -d $CHECK_PATH ]]; then
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echo "Not a directory in the workspace, fallback to all files." >&2
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CHECK_PATH="."
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fi
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# initialize exit code
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exit_code=0
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# All files improperly formatted will be printed to the output.
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src_files=$(find "$CHECK_PATH" -name .git -prune -o -regextype posix-egrep -regex "$INCLUDE_REGEX" -print)
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# check formatting in each source file
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IFS=$'\n' # Loop below should separate on new lines, not spaces.
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for file in $src_files; do
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# Only check formatting if the path doesn't match the regex
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if ! [[ ${file} =~ $EXCLUDE_REGEX ]]; then
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format_diff "${file}"
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fi
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done
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# global exit code is flipped to nonzero if any invocation of `format_diff` has
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# a formatting difference.
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exit "$exit_code"
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