diff options
Diffstat (limited to 'node_modules/globby/gitignore.js')
-rw-r--r-- | node_modules/globby/gitignore.js | 120 |
1 files changed, 120 insertions, 0 deletions
diff --git a/node_modules/globby/gitignore.js b/node_modules/globby/gitignore.js new file mode 100644 index 0000000..2f77baa --- /dev/null +++ b/node_modules/globby/gitignore.js @@ -0,0 +1,120 @@ +'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); +}; |