forked from OSchip/llvm-project
60 lines
1.9 KiB
Bash
Executable File
60 lines
1.9 KiB
Bash
Executable File
#!/bin/bash
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set -euo pipefail
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# "script-and-regex.regex": "/^(?P<severity>.*?)\n(?P<message>.*?)\n(?P<line>\\d),(?P<char>\\d)(\n(?P<original>.*?)>>>>\n(?P<replacement>.*?)<<<<?)$/s",
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# Arcanist linter that invokes clang-format.
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# stdout from this script is parsed into a regex and used by Arcanist.
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# https://secure.phabricator.com/book/phabricator/article/arcanist_lint_script_and_regex/
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# To skip running all linters when creating/updating a diff, use `arc diff --nolint`.
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if ! hash clang-format-diff >/dev/null; then
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# advice severity level is completely non-disruptive.
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# switch to warning or error if you want to prompt the user.
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echo "advice"
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echo "clang-format-diff not found in user's PATH; not linting file."
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echo "===="
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exit 0
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fi
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src_file="${1}"
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original_file="$(mktemp)"
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formatted_file="$(mktemp)"
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readonly src_file
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readonly original_file
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readonly formatted_file
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cp -p "${src_file}" "${original_file}"
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cp -p "${src_file}" "${formatted_file}"
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cleanup() {
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rc=$?
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rm "${formatted_file}" "${original_file}"
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exit ${rc}
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}
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trap 'cleanup' INT HUP QUIT TERM EXIT
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# Arcanist can filter out lint messages for unchanged lines, but for that, we
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# need to generate line by line lint messages. Instead, we generate one lint
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# message on line 1, char 1 with file content edited using clang-format-diff.
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if git rev-parse --git-dir >/dev/null; then
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arc_base_commit=$(arc which --show-base)
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# An alternative is to use git-clang-format.
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git diff -U0 --no-color "${arc_base_commit}"| clang-format-diff -style LLVM -i -p1
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else
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svn diff --diff-cmd=diff -x -U0 "${src_file}" | clang-format-diff -style LLVM -i
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fi
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cp -p "${src_file}" "${formatted_file}"
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cp -p "${original_file}" "${src_file}"
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if ! diff -q "${src_file}" "${formatted_file}" > /dev/null ; then
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echo "autofix"
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echo "clang-format suggested style edits found:"
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echo "1,1" # line,char of start of replacement.
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cat "${src_file}"
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echo ">>>>"
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cat "${formatted_file}"
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echo "<<<<"
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fi
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