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files.js
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files.js
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import _ from 'lodash';
import bluebird from 'bluebird';
import fileGlob from 'minimatch';
import fs from 'fs';
import path from 'path';
import {
isDate,
isNumber
} from 'unit-compare';
const fsp = bluebird.promisifyAll(fs);
function flatten(a, b) {
return a.concat(b);
}
function hasParent(parent) {
return parent && (parent !== '/' && parent !== '.');
}
function getParent(dir) {
return path.dirname(dir);
}
function getExt(file) {
return path.extname(file).substring(1);
}
function getSubDirectories(base, allPaths) {
return allPaths
.filter((candidate) => {
return base !== candidate && isSubDirectory(base, candidate);
});
}
function splitPath(dir) {
return dir.split(path.sep);
}
export function getDepth(root, dir) {
return pathDepth(dir) - pathDepth(root);
}
export function readFiles(dir) {
return bluebird.resolve(fsp.readdirAsync(dir));
}
export function readFilesSync(dir) {
return fs.readdirSync(dir);
}
export function findSubDirectories(paths) {
return paths
.map((path) => {
return getSubDirectories(path, paths);
})
.reduce(flatten, []);
}
export function notSubDirectory(subDirs) {
return (path) => {
return !_.includes(subDirs, path);
};
}
export function isSubDirectory(base, candidate) {
let parent = candidate;
while (hasParent(parent)) {
if (base === parent) {
return true;
}
parent = getParent(parent);
}
return false;
}
export function joinWith(dir) {
return (file) => {
return path.join(dir, file);
};
}
export function glob(pattern) {
return (fname) => {
const glob = new fileGlob.Minimatch(pattern, {
matchBase: true
});
return glob.match(fname);
};
}
export function match(pattern) {
return (fname) => {
return new RegExp(pattern).test(fname);
};
}
export function getStats(file) {
return fs.statSync(file);
}
export function sizeMatcher(sizeExpression) {
return (file) => {
const stats = getStats(file);
return isNumber(stats.size).assert(sizeExpression);
};
}
export function utimeMatcher(timeExpression, utime) {
return (file) => {
const mtime = getStats(file)[utime];
return isDate(mtime).assert(timeExpression);
};
}
export function extMatcher(extension) {
return (file) => {
return getExt(file) === extension;
};
}
export function isDirectory(file) {
return getStats(file).isDirectory();
}
export function isVisibleFile(path) {
const pathParts = splitPath(path);
return !(/^\./).test(pathParts.pop());
}
export function pathDepth(dir) {
return splitPath(dir).length;
}
export function isHiddenDirectory(dir) {
return (/(^|\/)\.[^\/\.]/g).test(dir);
}
export function reducePaths(searchPaths) {
if (searchPaths.length === 1) {
return searchPaths;
}
const subDirs = findSubDirectories(searchPaths.sort());
return searchPaths.filter(notSubDirectory(subDirs));
}