127 lines
2.7 KiB
JavaScript
127 lines
2.7 KiB
JavaScript
'use strict';
|
|
const { promisify } = require('util');
|
|
const fs = require('fs');
|
|
const path = require('path');
|
|
const fastGlob = require('fast-glob');
|
|
const gitIgnore = require('ignore');
|
|
const slash = require('slash');
|
|
|
|
const DEFAULT_IGNORE = [
|
|
'**/node_modules/**',
|
|
'**/flow-typed/**',
|
|
'**/coverage/**',
|
|
'**/.git',
|
|
];
|
|
|
|
const readFileP = promisify(fs.readFile);
|
|
|
|
const mapGitIgnorePatternTo = (base) => (ignore) => {
|
|
if (ignore.startsWith('!')) {
|
|
return '!' + path.posix.join(base, ignore.slice(1));
|
|
}
|
|
|
|
return path.posix.join(base, ignore);
|
|
};
|
|
|
|
const parseGitIgnore = (content, options) => {
|
|
const base = slash(
|
|
path.relative(options.cwd, path.dirname(options.fileName))
|
|
);
|
|
|
|
return content
|
|
.split(/\r?\n/)
|
|
.filter(Boolean)
|
|
.filter((line) => !line.startsWith('#'))
|
|
.map(mapGitIgnorePatternTo(base));
|
|
};
|
|
|
|
const reduceIgnore = (files) => {
|
|
const ignores = gitIgnore();
|
|
for (const file of files) {
|
|
ignores.add(
|
|
parseGitIgnore(file.content, {
|
|
cwd: file.cwd,
|
|
fileName: file.filePath,
|
|
})
|
|
);
|
|
}
|
|
|
|
return ignores;
|
|
};
|
|
|
|
const ensureAbsolutePathForCwd = (cwd, p) => {
|
|
cwd = slash(cwd);
|
|
if (path.isAbsolute(p)) {
|
|
if (slash(p).startsWith(cwd)) {
|
|
return p;
|
|
}
|
|
|
|
throw new Error(`Path ${p} is not in cwd ${cwd}`);
|
|
}
|
|
|
|
return path.join(cwd, p);
|
|
};
|
|
|
|
const getIsIgnoredPredecate = (ignores, cwd) => {
|
|
return (p) =>
|
|
ignores.ignores(
|
|
slash(path.relative(cwd, ensureAbsolutePathForCwd(cwd, p.path || p)))
|
|
);
|
|
};
|
|
|
|
const getFile = async (file, cwd) => {
|
|
const filePath = path.join(cwd, file);
|
|
const content = await readFileP(filePath, 'utf8');
|
|
|
|
return {
|
|
cwd,
|
|
filePath,
|
|
content,
|
|
};
|
|
};
|
|
|
|
const getFileSync = (file, cwd) => {
|
|
const filePath = path.join(cwd, file);
|
|
const content = fs.readFileSync(filePath, 'utf8');
|
|
|
|
return {
|
|
cwd,
|
|
filePath,
|
|
content,
|
|
};
|
|
};
|
|
|
|
const normalizeOptions = ({ ignore = [], cwd = slash(process.cwd()) } = {}) => {
|
|
return { ignore, cwd };
|
|
};
|
|
|
|
module.exports = async (options) => {
|
|
options = normalizeOptions(options);
|
|
|
|
const paths = await fastGlob('**/.gitignore', {
|
|
ignore: DEFAULT_IGNORE.concat(options.ignore),
|
|
cwd: options.cwd,
|
|
});
|
|
|
|
const files = await Promise.all(
|
|
paths.map((file) => getFile(file, options.cwd))
|
|
);
|
|
const ignores = reduceIgnore(files);
|
|
|
|
return getIsIgnoredPredecate(ignores, options.cwd);
|
|
};
|
|
|
|
module.exports.sync = (options) => {
|
|
options = normalizeOptions(options);
|
|
|
|
const paths = fastGlob.sync('**/.gitignore', {
|
|
ignore: DEFAULT_IGNORE.concat(options.ignore),
|
|
cwd: options.cwd,
|
|
});
|
|
|
|
const files = paths.map((file) => getFileSync(file, options.cwd));
|
|
const ignores = reduceIgnore(files);
|
|
|
|
return getIsIgnoredPredecate(ignores, options.cwd);
|
|
};
|