lint/lib/functions/experimental-batch-workers/eslint.sh
Kin Fai Tse c3ac3aa5d9
Batched & parallel support for cfn-lint, eslint, gitleaks (#4088)
* faster linter for cfn-lint and eslint

* workaround shfmt error

* fix xargs interleave large outputs

* parallel gitleaks

* fix exec bit, shfmt, bash linter

* show parallel --citation

* refactor a common interface using named pipe

* add readme for the experimental impl

* fix readme format

* minimize change in worker.sh

* will cite, showed once

* remove junk comment

* explicitly set EXPERIMENTAL_BATCH_WORKER=false

* fix: errors from github/super-linter:v5
2023-10-31 00:13:33 +00:00

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Executable file

#!/usr/bin/env bash
# Sample eslint output:
#
# /path/to/failed.js
# 11:5 error 'a' is never reassigned. Use 'const' instead prefer-const
# 11:5 error 'a' is assigned a value but never used no-unused-vars
#
function LintCodebaseEslintStdoutParser() {
local STDOUT_PIPENAME="${1}" && shift
local LINTER_NAME="${1}" && shift
local ERRORS_FOUND=0
local CUR_FILE_COUNTED
local LINE
while IFS= read -r LINE; do
if grep "$PWD" <<<"$LINE" >/dev/null; then
CUR_FILE_COUNTED="false"
continue
fi
if grep "[[:space:]]\+[0-9]\+:[0-9]\+[[:space:]]\+error[[:space:]]\+" <<<"$LINE" >/dev/null; then
if [[ "$CUR_FILE_COUNTED" == "false" ]]; then
CUR_FILE_COUNTED="true"
ERRORS_FOUND=$((ERRORS_FOUND + 1))
fi
fi
done <"${STDOUT_PIPENAME}"
echo "${ERRORS_FOUND}" >"${STDOUT_PIPENAME}.return"
return 0
}
function ParallelLintCodebaseEslint() {
local FILE_TYPE="${1}" && shift
local LINTER_NAME="${1}" && shift
local LINTER_COMMAND="${1}" && shift
local TEST_CASE_RUN="${1}" && shift
local FILE_ARRAY=("$@")
local NUM_PROC="$(($(nproc) * 1))"
local FILES_PER_PROC="64"
local STDOUT_PARSER="LintCodebaseEslintStdoutParser"
local STDERR_PARSER="LintCodebaseBaseStderrParser"
info "Running EXPERIMENTAL parallel ${FILE_TYPE} LintCodebase on ${#FILE_ARRAY[@]} files. LINTER_NAME: ${LINTER_NAME}, LINTER_COMMAND: ${LINTER_COMMAND}, TEST_CASE_RUN: ${TEST_CASE_RUN}"
ParallelLintCodebaseImpl "${FILE_TYPE}" "${LINTER_NAME}" "${LINTER_COMMAND}" "${TEST_CASE_RUN}" "${NUM_PROC}" "${FILES_PER_PROC}" "${STDOUT_PARSER}" "${STDERR_PARSER}" "${FILE_ARRAY[@]}"
info "Exiting EXPERIMENTAL parallel ${FILE_TYPE} LintCodebase on ${#FILE_ARRAY[@]} files. ERROR_FOUND: ${ERRORS_FOUND}. LINTER_NAME: ${LINTER_NAME}, LINTER_COMMAND: ${LINTER_COMMAND}"
return 0
}