actual build process, linting, formatting, tweaks
This commit is contained in:
parent
abfcc14b52
commit
678f7226a1
8 changed files with 39 additions and 304 deletions
7
.eslintrc.yaml
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7
.eslintrc.yaml
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@ -0,0 +1,7 @@
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env:
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es6: true
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node: true
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extends: 'eslint:recommended'
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parserOptions:
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ecmaVersion: 2017
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sourceType: module
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2
.gitignore
vendored
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2
.gitignore
vendored
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@ -0,0 +1,2 @@
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/dist/
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/node_modules/
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288
index.js
288
index.js
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@ -1,288 +0,0 @@
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'use strict';
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Object.defineProperty(exports, '__esModule', { value: true });
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let events = require("events");
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let fs = require("fs");
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let readFile$1 = fs.readFile;
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let stat$1 = fs.stat;
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function readFile$$1(...args) { return new Promise((res, rej) => readFile$1(...args, (err, val) => err ? rej(err) : res(val))) }
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function stat$$1(...args) { return new Promise((res, rej) => stat$1(...args, (err, val) => err ? rej(err) : res(val))) }
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let path = require("path");
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let relative = path.relative;
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class File {
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constructor(path) {
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this.path = path;
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this.stat = null;
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this._bytes = null;
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this._text = null;
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}
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get ext() {
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if (this.path && this.path.match) {
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let match = this.path.match(/\.[^./\\]+$/);
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if (match) {
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return match[0]
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}
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}
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return ''
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}
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set ext(ext) {
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let oldExt = this.ext;
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if (oldExt) {
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this.path = this.path.slice(0, -oldExt.length) + ext;
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} else {
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this.path += ext;
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}
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}
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get bytes() {
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if (this._bytes == null && this._text != null) {
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this._bytes = Buffer.from(this._text);
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}
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return this._bytes
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}
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set bytes(bytes) {
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this._bytes = bytes;
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this._text = null;
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}
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get text() {
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if (this._text == null && this._bytes != null) {
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this._text = this._bytes.toString();
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}
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return this._text
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}
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set text(text) {
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this._text = text;
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this._bytes = null;
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}
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}
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let TRANSFORM = Symbol();
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let IF = Symbol();
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let ELSE = Symbol();
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let END = Symbol();
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class Defiler extends events {
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constructor() {
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super();
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this._origFiles = new Map();
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this._files = new Map();
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this._ready = null;
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this._gazes = [];
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this._gazePromises = [];
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this._transforms = [];
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this._filePromises = new Map();
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this._customGenerators = new Map();
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this._dependencies = new Map();
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}
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// read-only getters
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get ready() {
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return this._ready
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}
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get origFiles() {
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return this._origFiles
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}
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get files() {
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return this._files
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}
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get origPaths() {
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return [ ...(this._filePromises || this._origFiles).keys() ].sort()
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}
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// pre-exec (configuration) methods
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addGaze(gaze, rootPath, read = true) {
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this._checkBeforeExec('addGaze');
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this._gazes.push({ gaze, rootPath, read });
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this._gazePromises.push(new Promise(resolve => gaze.on('ready', resolve)));
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return this
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}
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addTransform(transform) {
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this._checkBeforeExec('addTransform');
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this._transforms.push({ type: TRANSFORM, transform });
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return this
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}
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if(condition) {
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this._checkBeforeExec('if');
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this._transforms.push({ type: IF, condition });
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return this
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}
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else() {
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this._checkBeforeExec('else');
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this._transforms.push({ type: ELSE });
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return this
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}
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end() {
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this._checkBeforeExec('end');
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this._transforms.push({ type: END });
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return this
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}
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addGeneratedFile(path, generator) {
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this._checkBeforeExec('addGeneratedFile');
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this._customGenerators.set(path, generator);
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return this
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}
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// exec
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exec() {
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this._checkBeforeExec('exec');
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this._ready = new Promise(async resolve => {
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await Promise.all(this._gazePromises);
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this._gazePromises = null;
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let promises = [];
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for (let { gaze, rootPath, read } of this._gazes) {
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let watched = gaze.watched();
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for (let dir in watched) {
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for (let absolutePath of watched[dir]) {
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let promise = this._processPhysicalFile(absolutePath, rootPath, read);
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promises.push(promise);
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this._filePromises.set(Defiler._relativePath(rootPath, absolutePath), promise);
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}
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}
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}
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for (let path of this._customGenerators.keys()) {
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let promise = this._handleGeneratedFile(path);
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promises.push(promise);
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this._filePromises.set(path, promise);
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}
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await Promise.all(promises);
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for (let { gaze, rootPath, read } of this._gazes) {
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gaze.on('all', (event, absolutePath) => {
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if (event === 'deleted') {
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let path = Defiler._relativePath(rootPath, absolutePath);
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this._origFiles.delete(path);
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this._files.delete(path);
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this.emit('deleted', path);
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} else {
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this._processPhysicalFile(absolutePath, rootPath, read);
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}
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});
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}
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this.on('file', file => {
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let origins = new Set();
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for (let [ origin, deps ] of this._dependencies.entries()) {
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if (deps.has(file.path)) {
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origins.add(origin);
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this._dependencies.delete(origin);
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}
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}
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for (let originPath of origins) {
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this.refile(originPath);
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}
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});
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this._filePromises = null;
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resolve();
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});
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return this
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}
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// post-exec methods
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async use(path, origin) {
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this._checkAfterExec('use');
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if (Array.isArray(path)) {
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return Promise.all(path.map(path => this.use(path, origin)))
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}
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if (origin) {
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if (this._dependencies.has(origin)) {
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this._dependencies.get(origin).add(path);
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} else {
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this._dependencies.set(origin, new Set([ path ]));
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}
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}
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if (this._filePromises) {
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await this._filePromises.get(path);
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}
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return this._files.get(path)
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}
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async refile(path) {
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this._checkAfterExec('refile');
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if (this._customGenerators.has(path)) {
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await this._handleGeneratedFile(path);
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} else if (this._origFiles.has(path)) {
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await this._processFile(this._origFiles.get(path));
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}
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}
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async addFile(file) {
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this._checkAfterExec('addFile');
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let { path } = file;
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await this._transformFile(file);
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this._files.set(path, file);
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this.emit('file', file);
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}
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close() {
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this._checkAfterExec('close');
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for (let { gaze } of this._gazes) {
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gaze.close();
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}
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}
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// private methods
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_checkBeforeExec(methodName) {
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if (this._ready) {
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throw new Error(`Cannot call ${methodName} after calling exec`)
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}
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}
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_checkAfterExec(methodName) {
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if (!this._ready) {
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throw new Error(`Cannot call ${methodName} before calling exec`)
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}
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}
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async _processPhysicalFile(absolutePath, rootPath, read) {
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let fileStat = await stat$$1(absolutePath);
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if (!fileStat.isFile()) {
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return
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}
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let path = Defiler._relativePath(rootPath, absolutePath);
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let origFile = new File(path);
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origFile.stat = fileStat;
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if (read) {
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origFile.bytes = await readFile$$1(absolutePath);
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}
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this._origFiles.set(path, origFile);
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this.emit('origFile', origFile);
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await this._processFile(origFile);
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}
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async _processFile(origFile) {
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let file = new File(origFile.path);
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file.stat = origFile.stat;
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file.bytes = origFile.bytes;
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await this._transformFile(file);
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this._files.set(origFile.path, file);
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this.emit('file', file);
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}
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async _transformFile(file) {
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let depth = 0;
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let skipDepth = null;
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try {
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for (let { type, transform, condition } of this._transforms) {
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if (type === TRANSFORM) {
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if (skipDepth === null) {
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await transform.call(this, file);
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}
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} else if (type === IF) {
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if (skipDepth === null && !condition.call(this, file)) {
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skipDepth = depth;
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}
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depth++;
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} else if (type === ELSE) {
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if (skipDepth === null) {
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skipDepth = depth - 1;
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} else if (skipDepth === depth - 1) {
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skipDepth = null;
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}
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} else if (type === END) {
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depth--;
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if (skipDepth === depth) {
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skipDepth = null;
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}
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}
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}
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} catch (err) {
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this.emit('error', file, err);
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}
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}
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async _handleGeneratedFile(path) {
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try {
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let file = new File(path);
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await this._customGenerators.get(path).call(this, file);
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await this.addFile(file);
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} catch (err) {
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this.emit('error', path, err);
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}
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}
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static _relativePath(rootPath, absolutePath) {
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return relative(rootPath, absolutePath).replace(/\\/g, '/')
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}
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}
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exports.Defiler = Defiler;
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exports.File = File;
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14
package.json
14
package.json
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"name": "@conduitry/defiler",
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"version": "0.0.1",
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"description": "A small, strange building block",
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"main": "index.js",
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"main": "./dist/index.cjs.js",
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"module": "./src/index.es.js",
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"scripts": {
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"test": "echo \"Error: no test specified\" && exit 1"
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"build": "rollup -c",
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"eslint": "eslint",
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"prettier": "prettier",
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"lint": "eslint src",
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"format": "prettier --write --print-width 160 --use-tabs --no-semi --single-quote --trailing-comma es5 \"src/**/*.js\""
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},
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"devDependencies": {
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"eslint": "^3.19.0",
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"prettier": "^1.2.2",
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"rollup": "^0.41.6"
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},
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"repository": {
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"type": "git",
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6
rollup.config.js
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6
rollup.config.js
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export default {
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entry: 'src/index.js',
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external: ['events', 'fs', 'path'],
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sourceMap: true,
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targets: [{ dest: 'dist/index.cjs.js', format: 'cjs' }, { dest: 'dist/index.es.js', format: 'es' }],
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}
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import EventEmitter from 'events'
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import { readFile, stat } from 'fs.promise'
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import { readFile, stat } from 'fs'
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import { relative } from 'path'
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import File from './File.js'
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let TRANSFORM = Symbol()
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@ -9,7 +10,6 @@ let ELSE = Symbol()
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let END = Symbol()
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export default class Defiler extends EventEmitter {
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constructor() {
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super()
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@ -41,7 +41,7 @@ export default class Defiler extends EventEmitter {
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}
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get origPaths() {
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return [ ...(this._filePromises || this._origFiles).keys() ].sort()
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return [...(this._filePromises || this._origFiles).keys()].sort()
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}
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// pre-exec (configuration) methods
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@ -49,7 +49,7 @@ export default class Defiler extends EventEmitter {
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addGaze(gaze, rootPath, read = true) {
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this._checkBeforeExec('addGaze')
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this._gazes.push({ gaze, rootPath, read })
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this._gazePromises.push(new Promise(resolve => gaze.on('ready', resolve)))
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this._gazePromises.push(new Promise(res => gaze.on('ready', res)))
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return this
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}
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@ -87,8 +87,7 @@ export default class Defiler extends EventEmitter {
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exec() {
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this._checkBeforeExec('exec')
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this._ready = new Promise(async resolve => {
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this._ready = new Promise(async res => {
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await Promise.all(this._gazePromises)
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this._gazePromises = null
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@ -128,7 +127,7 @@ export default class Defiler extends EventEmitter {
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this.on('file', file => {
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let origins = new Set()
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for (let [ origin, deps ] of this._dependencies.entries()) {
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for (let [origin, deps] of this._dependencies.entries()) {
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if (deps.has(file.path)) {
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origins.add(origin)
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this._dependencies.delete(origin)
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@ -140,7 +139,7 @@ export default class Defiler extends EventEmitter {
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})
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this._filePromises = null
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resolve()
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res()
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})
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return this
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@ -157,7 +156,7 @@ export default class Defiler extends EventEmitter {
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if (this._dependencies.has(origin)) {
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this._dependencies.get(origin).add(path)
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} else {
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this._dependencies.set(origin, new Set([ path ]))
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this._dependencies.set(origin, new Set([path]))
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}
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}
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if (this._filePromises) {
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@ -205,7 +204,7 @@ export default class Defiler extends EventEmitter {
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}
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async _processPhysicalFile(absolutePath, rootPath, read) {
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let fileStat = await stat(absolutePath)
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let fileStat = await new Promise((res, rej) => stat(absolutePath, (err, data) => (err ? rej(err) : res(data))))
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if (!fileStat.isFile()) {
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return
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}
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@ -213,7 +212,7 @@ export default class Defiler extends EventEmitter {
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let origFile = new File(path)
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origFile.stat = fileStat
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if (read) {
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origFile.bytes = await readFile(absolutePath)
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origFile.bytes = await new Promise((res, rej) => readFile(absolutePath, (err, data) => (err ? rej(err) : res(data))))
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}
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this._origFiles.set(path, origFile)
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this.emit('origFile', origFile)
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@ -274,5 +273,4 @@ export default class Defiler extends EventEmitter {
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static _relativePath(rootPath, absolutePath) {
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return relative(rootPath, absolutePath).replace(/\\/g, '/')
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}
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}
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@ -1,5 +1,4 @@
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export default class File {
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constructor(path) {
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this.path = path
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this.stat = null
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@ -49,5 +48,4 @@ export default class File {
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this._text = text
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this._bytes = null
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}
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}
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2
src/index.js
Normal file
2
src/index.js
Normal file
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export { default as File } from './File.js'
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export { default as Defiler } from './Defiler.js'
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