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Benoti 2023-09-01 12:32:35 +01:00
parent 5dc871d8db
commit 59d73239d8
7 changed files with 577 additions and 421 deletions
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8
.gitignore vendored
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@ -1,5 +1,5 @@
# Ignore npm modules and src folder
node_modules
# src
# tsconfig.json
# Ignore npm modules and src folder
node_modules
# src
# tsconfig.json
test

228
README.md
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@ -1,114 +1,114 @@
# Less watch for .less files
This is a super-light npm package that watches .less files and actively compiles them into .css files
---
## Prerequisites
You need `less` npm package insalled. you can add it your project by running:
```bash
npm install less
```
## Installation
To install this package simply run:
```bash
npm install lessc-watcher
```
## How to use
There are few different ways to run your less compiler
### Basic usage
```bash
npx lessc-watcher --src ./folder --dst ./dist/less.css
```
This traverses the `--src` folder and searches for a `main.less` file. This file serves as the source for your bundled `.css` file. If you want to target a specific file, use:
```bash
npx lessc-watcher --src ./folder/src.less --dst ./dist/less.css
```
Or you can just watch an entire folder. In this case less-watch will searc for an entry file named `main.less`. Without this entry file, your compiler wouldn't work.
```bash
npx lessc-watcher --src ./folder --dst ./dist/less.css
```
**_NOTE:_** If you only provide a destination path, without specifying the exact file name in `.css`, your files will be compiled to a css file named `_main.css`. This is done to prevent conflicts with another possible `main.css` file.
### Adding more source folders
You can add more source folders by using a comma(`,`) separator. Example:
```bash
npx lessc-watcher --src ./folder-1,./folder-2 --dst ./dist/folder-1.css,./dist/folder-2.css
```
**_NOTE:_** Your `--dst` input must match the number of comma-separated folders in your `src` input.
## Advanced Features
lessc-watcher has more advanced features to better fine-tune your files
### Ignore files
Ignore files/folders by enlosing the names in braces. Eg `(general).less`
### Compile specific files
If you're watching an entire folder, you can compile specific files in that folder to a stanalone file. Example if you create a file named `[test].less` in your watch directory, in your distribution directory there will be an extra file named `test.css`.
## Using a `lesscw.config.json` file
You can use a `lesscw.config.json` file to add your files instead of using the CLI interface. For this to work your `lesscw.config.json` file must be located in the root directory of your project, and it must contain at least one `src` and one `dst` entry
### Basic Config JSON
```json
{
"src": "./folder",
"dst": "./dist/less.css"
}
```
This works the same as running `npx lessc-watcher --src ./folder --dst ./dist/less.css` in your terminal. Instead you only need to run:
```bash
npx lessc-watcher
```
### Using multiple sources and destinations
```json
{
"src": ["./folder", "./folder-2", "./folder/sub-folder/admin.less"],
"dst": ["./dist/less.css", "./dist/folder-2/less.css", "./dist/sub-folder.css"]
}
```
Like the CLI paradigm, the number of paths in the `src` array must match the `dst array`. And note that you can use multiple different folders with multiple different destinations.
### Using a `srcDst` cofiguration
ALternative to the `src` and `dst` paths, you can provide a `srcDst` key instead, this will contain an array of key-value pairs as follows
```json
{
"srcDst": [
{
"src": "./folder",
"dst": "./folder-2"
}
]
}
```
**_NOTE:_** If you provide a config file and still add `--src` and `--dst` arguments in your terminal, the terminal source and distributuion arguments will be ignored.
# Less watch for .less files
This is a super-light npm package that watches .less files and actively compiles them into .css files
---
## Prerequisites
You need `less` npm package insalled. you can add it your project by running:
```bash
npm install less
```
## Installation
To install this package simply run:
```bash
npm install lessc-watcher
```
## How to use
There are few different ways to run your less compiler
### Basic usage
```bash
npx lessc-watcher --src ./folder --dst ./dist/less.css
```
This traverses the `--src` folder and searches for a `main.less` file. This file serves as the source for your bundled `.css` file. If you want to target a specific file, use:
```bash
npx lessc-watcher --src ./folder/src.less --dst ./dist/less.css
```
Or you can just watch an entire folder. In this case less-watch will searc for an entry file named `main.less`. Without this entry file, your compiler wouldn't work.
```bash
npx lessc-watcher --src ./folder --dst ./dist/less.css
```
**_NOTE:_** If you only provide a destination path, without specifying the exact file name in `.css`, your files will be compiled to a css file named `_main.css`. This is done to prevent conflicts with another possible `main.css` file.
### Adding more source folders
You can add more source folders by using a comma(`,`) separator. Example:
```bash
npx lessc-watcher --src ./folder-1,./folder-2 --dst ./dist/folder-1.css,./dist/folder-2.css
```
**_NOTE:_** Your `--dst` input must match the number of comma-separated folders in your `src` input.
## Advanced Features
lessc-watcher has more advanced features to better fine-tune your files
### Ignore files
Ignore files/folders by enlosing the names in braces. Eg `(general).less`
### Compile specific files
If you're watching an entire folder, you can compile specific files in that folder to a stanalone file. Example if you create a file named `[test].less` in your watch directory, in your distribution directory there will be an extra file named `test.css`.
## Using a `lesscw.config.json` file
You can use a `lesscw.config.json` file to add your files instead of using the CLI interface. For this to work your `lesscw.config.json` file must be located in the root directory of your project, and it must contain at least one `src` and one `dst` entry
### Basic Config JSON
```json
{
"src": "./folder",
"dst": "./dist/less.css"
}
```
This works the same as running `npx lessc-watcher --src ./folder --dst ./dist/less.css` in your terminal. Instead you only need to run:
```bash
npx lessc-watcher
```
### Using multiple sources and destinations
```json
{
"src": ["./folder", "./folder-2", "./folder/sub-folder/admin.less"],
"dst": ["./dist/less.css", "./dist/folder-2/less.css", "./dist/sub-folder.css"]
}
```
Like the CLI paradigm, the number of paths in the `src` array must match the `dst array`. And note that you can use multiple different folders with multiple different destinations.
### Using a `srcDst` cofiguration
ALternative to the `src` and `dst` paths, you can provide a `srcDst` key instead, this will contain an array of key-value pairs as follows
```json
{
"srcDst": [
{
"src": "./folder",
"dst": "./folder-2"
}
]
}
```
**_NOTE:_** If you provide a config file and still add `--src` and `--dst` arguments in your terminal, the terminal source and distributuion arguments will be ignored.

84
dist/index.js vendored
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@ -18,18 +18,31 @@ const grabSrcDisStrings = () => {
}
try {
const configObject = JSON.parse(fs_1.default.readFileSync("./lesscw.config.json", "utf-8"));
if ((configObject === null || configObject === void 0 ? void 0 : configObject.src) && (configObject === null || configObject === void 0 ? void 0 : configObject.dst) && typeof configObject.src === "string" && typeof configObject.dst === "string") {
if ((configObject === null || configObject === void 0 ? void 0 : configObject.src) &&
(configObject === null || configObject === void 0 ? void 0 : configObject.dst) &&
typeof configObject.src === "string" &&
typeof configObject.dst === "string") {
srcArray = configObject.src.split(",");
dstArray = configObject.dst.split(",");
}
else if ((configObject === null || configObject === void 0 ? void 0 : configObject.src) && (configObject === null || configObject === void 0 ? void 0 : configObject.dst) && typeof configObject.src === "object" && typeof configObject.dst === "object" && Array.isArray(configObject.src) && Array.isArray(configObject.dst)) {
else if ((configObject === null || configObject === void 0 ? void 0 : configObject.src) &&
(configObject === null || configObject === void 0 ? void 0 : configObject.dst) &&
typeof configObject.src === "object" &&
typeof configObject.dst === "object" &&
Array.isArray(configObject.src) &&
Array.isArray(configObject.dst)) {
srcArray = configObject.src;
dstArray = configObject.dst;
}
else if ((configObject === null || configObject === void 0 ? void 0 : configObject.srcDst) && Array.isArray(configObject.srcDst) && configObject.srcDst.length > 0) {
else if ((configObject === null || configObject === void 0 ? void 0 : configObject.srcDst) &&
Array.isArray(configObject.srcDst) &&
configObject.srcDst.length > 0) {
const srcDstArray = configObject.srcDst;
srcDstArray.forEach((item) => {
if ((item === null || item === void 0 ? void 0 : item.src) && (item === null || item === void 0 ? void 0 : item.dst) && typeof item.src === "string" && typeof item.dst === "string") {
if ((item === null || item === void 0 ? void 0 : item.src) &&
(item === null || item === void 0 ? void 0 : item.dst) &&
typeof item.src === "string" &&
typeof item.dst === "string") {
srcArray.push(item.src);
dstArray.push(item.dst);
}
@ -46,10 +59,13 @@ const grabSrcDisStrings = () => {
}
}
else {
if (process.argv.indexOf("--src") >= 0 && process.argv.indexOf("--dst") >= 0) {
if (process.argv.indexOf("--src") >= 0 &&
process.argv.indexOf("--dst") >= 0) {
try {
srcArray = process.argv[process.argv.indexOf("--src") + 1].split(",");
dstArray = process.argv[process.argv.indexOf("--dst") + 1].split(",");
srcArray =
process.argv[process.argv.indexOf("--src") + 1].split(",");
dstArray =
process.argv[process.argv.indexOf("--dst") + 1].split(",");
}
catch (error) { }
}
@ -73,33 +89,44 @@ if (!sourceFile || !destinationFile) {
process.exit();
}
function traverseFiles(src, dst) {
var _a;
const sourceFiles = src.split(",");
const dstFiles = dst.split(",");
for (let i = 0; i < sourceFiles.length; i++) {
const srcFolder = sourceFiles[i];
const dstFile = dstFiles[i];
if ((srcFolder === null || srcFolder === void 0 ? void 0 : srcFolder.match(/\/[^\/]+\.[^\/]+$/)) && !(srcFolder === null || srcFolder === void 0 ? void 0 : srcFolder.match(/\.less$/))) {
if ((srcFolder === null || srcFolder === void 0 ? void 0 : srcFolder.match(/\/[^\/]+\.[^\/]+$/)) &&
!(srcFolder === null || srcFolder === void 0 ? void 0 : srcFolder.match(/\.less$/))) {
console.log("- \x1b[31mERROR:\x1b[0m Source must be a folder or a .less file");
process.exit();
}
if (!fs_1.default.existsSync(srcFolder)) {
if (srcFolder === null || srcFolder === void 0 ? void 0 : srcFolder.match(/\.less$/)) {
fs_1.default.mkdirSync(srcFolder.replace(/\/[^\/]+\.less$/, ""), { recursive: true });
fs_1.default.mkdirSync(srcFolder.replace(/\/[^\/]+\.less$/, ""), {
recursive: true,
});
fs_1.default.writeFileSync(srcFolder, "", "utf-8");
}
else {
fs_1.default.mkdirSync(srcFolder.replace(/\/[^\/]+\.[^\/]+$/, ""), { recursive: true });
fs_1.default.mkdirSync(srcFolder.replace(/\/[^\/]+\.[^\/]+$/, ""), {
recursive: true,
});
fs_1.default.writeFileSync((srcFolder + "/main.less").replace(/\/\//g, ""), "", "utf-8");
}
}
else if (fs_1.default.existsSync(srcFolder) && fs_1.default.existsSync((srcFolder + "/main.less").replace(/\/\//g, ""))) {
else if (fs_1.default.existsSync(srcFolder) &&
fs_1.default.existsSync((srcFolder + "/main.less").replace(/\/\//g, ""))) {
}
if (!fs_1.default.existsSync(dstFile)) {
if (dstFile === null || dstFile === void 0 ? void 0 : dstFile.match(/\.css$/)) {
fs_1.default.mkdirSync(dstFile.replace(/\/[^\/]+\.css$/, ""), { recursive: true });
fs_1.default.mkdirSync(dstFile.replace(/\/[^\/]+\.css$/, ""), {
recursive: true,
});
}
else {
fs_1.default.mkdirSync(dstFile.replace(/\/[^\/]+\.[^\/]+$/, ""), { recursive: true });
fs_1.default.mkdirSync(dstFile.replace(/\/[^\/]+\.[^\/]+$/, ""), {
recursive: true,
});
}
}
compile(srcFolder, dstFile, null);
@ -113,7 +140,9 @@ function traverseFiles(src, dst) {
catch (error) { }
if (srcFolder === null || srcFolder === void 0 ? void 0 : srcFolder.match(/\.less$/)) {
fs_1.default.watchFile(srcFolder, { interval: 500 }, (current, previous) => {
const dstFilePathRoot = (dstFile === null || dstFile === void 0 ? void 0 : dstFile.match(/\.css$/)) ? dstFile : dstFile + "/" + "_main.css";
const dstFilePathRoot = (dstFile === null || dstFile === void 0 ? void 0 : dstFile.match(/\.css$/))
? dstFile
: dstFile + "/" + "_main.css";
try {
const currentProcessArgsSrc = process.argv[process.argv.indexOf("--src") + 1];
const activeSourceFiles = currentProcessArgsSrc.split(",");
@ -130,7 +159,11 @@ function traverseFiles(src, dst) {
});
}
else if (!(srcFolder === null || srcFolder === void 0 ? void 0 : srcFolder.match(/\.[^\/]+$/))) {
fs_1.default.watch(srcFolder, { recursive: true }, (evtType, fileName) => {
fs_1.default.watch(srcFolder, {
recursive: ((_a = process.platform) === null || _a === void 0 ? void 0 : _a.match(/win/i))
? true
: undefined,
}, (evtType, fileName) => {
if (!(evtType === null || evtType === void 0 ? void 0 : evtType.match(/change/i))) {
return;
}
@ -143,7 +176,8 @@ function traverseFiles(src, dst) {
if (fileName === null || fileName === void 0 ? void 0 : fileName.match(/^\[/)) {
compile(srcFolder + "/" + fileName, dstFile, evtType);
}
else if ((fileName === null || fileName === void 0 ? void 0 : fileName.match(/^\(/)) || activeSourceFiles.includes(srcFilePathRoot)) {
else if ((fileName === null || fileName === void 0 ? void 0 : fileName.match(/^\(/)) ||
activeSourceFiles.includes(srcFilePathRoot)) {
return;
}
else {
@ -163,10 +197,13 @@ function traverseFiles(src, dst) {
}
traverseFiles(sourceFile, destinationFile);
function compile(fileName, dst, evtType) {
if ((fileName === null || fileName === void 0 ? void 0 : fileName.match(/\(/)) || (fileName.match(/\.[\/]$/) && !(fileName === null || fileName === void 0 ? void 0 : fileName.match(/\.less$/i)))) {
if ((fileName === null || fileName === void 0 ? void 0 : fileName.match(/\(/)) ||
(fileName.match(/\.[\/]$/) && !(fileName === null || fileName === void 0 ? void 0 : fileName.match(/\.less$/i)))) {
return;
}
let finalSrcPath = (fileName === null || fileName === void 0 ? void 0 : fileName.match(/\.less$/)) ? fileName : `${fileName}/main.less`;
let finalSrcPath = (fileName === null || fileName === void 0 ? void 0 : fileName.match(/\.less$/))
? fileName
: `${fileName}/main.less`;
const distFolder = (dst === null || dst === void 0 ? void 0 : dst.match(/\.css$/)) ? null : dst === null || dst === void 0 ? void 0 : dst.replace(/\/+$/, "");
let finalDstPath = distFolder ? `${distFolder}/_main.css` : dst;
if (distFolder && !fs_1.default.existsSync(distFolder)) {
@ -175,7 +212,9 @@ function compile(fileName, dst, evtType) {
if (fileName === null || fileName === void 0 ? void 0 : fileName.match(/\[/)) {
const paths = fileName.split("/");
const targetPathFull = paths[paths.length - 1];
const targetPath = targetPathFull.replace(/\[|\]/g, "").replace(/\.less/, "");
const targetPath = targetPathFull
.replace(/\[|\]/g, "")
.replace(/\.less/, "");
const destinationFileParentFolder = dst.replace(/\/[^\/]+\.css$/, "");
const targetDstFilePath = `${destinationFileParentFolder}/${targetPath}.css`;
finalSrcPath = fileName;
@ -185,7 +224,9 @@ function compile(fileName, dst, evtType) {
(0, child_process_1.exec)(executionCmd, (error, stdout, stderr) => {
if (error) {
console.log("- \x1b[33mWarn:\x1b[0m Compilation didn't run successfully. ERROR =>", error.message);
if (!(evtType === null || evtType === void 0 ? void 0 : evtType.match(/change/i)) && fileName && fileName.match(/\[/)) {
if (!(evtType === null || evtType === void 0 ? void 0 : evtType.match(/change/i)) &&
fileName &&
fileName.match(/\[/)) {
fs_1.default.unlinkSync(finalDstPath);
}
return;
@ -197,7 +238,8 @@ if (fs_1.default.existsSync("./lesscw.config.json")) {
fs_1.default.watchFile("./lesscw.config.json", { interval: 500 }, (evtType, fileName) => {
console.log("- \x1b[34mInfo:\x1b[0m Restarting process...");
const newSrcDistStrings = grabSrcDisStrings();
if (newSrcDistStrings.destinationFile && newSrcDistStrings.sourceFile) {
if (newSrcDistStrings.destinationFile &&
newSrcDistStrings.sourceFile) {
process.argv.push("--src", newSrcDistStrings.sourceFile, "--dst", newSrcDistStrings.destinationFile);
traverseFiles(newSrcDistStrings.sourceFile, newSrcDistStrings.destinationFile);
}

2
package.json
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@ -1,6 +1,6 @@
{
"name": "lessc-watcher",
"version": "1.1.9",
"version": "1.2.0",
"description": "A minimal package to watch less files and compile them to css",
"main": "dist/index.js",
"bin": {

16
src/index.d.ts vendored
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@ -1,8 +1,8 @@
export type LessCssWatcherConfigObject = {
src?: string | string[];
dst?: string | string[];
srcDst?: {
src?: string;
dst?: string;
}[];
};
export type LessCssWatcherConfigObject = {
src?: string | string[];
dst?: string | string[];
srcDst?: {
src?: string;
dst?: string;
}[];
};

634
src/index.ts
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@ -1,260 +1,374 @@
#! /usr/bin/env node
import fs from "fs";
import { exec } from "child_process";
import { LessCssWatcherConfigObject } from "./index.d";
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
const grabSrcDisStrings = () => {
let srcArray: string[] = [];
let dstArray: string[] = [];
if (fs.existsSync("./lesscw.config.json")) {
if (process.argv.indexOf("--src")) {
try {
process.argv.splice(process.argv.indexOf("--src"));
} catch (error) {}
}
try {
const configObject: LessCssWatcherConfigObject = JSON.parse(fs.readFileSync("./lesscw.config.json", "utf-8"));
if (configObject?.src && configObject?.dst && typeof configObject.src === "string" && typeof configObject.dst === "string") {
srcArray = configObject.src.split(",");
dstArray = configObject.dst.split(",");
} else if (configObject?.src && configObject?.dst && typeof configObject.src === "object" && typeof configObject.dst === "object" && Array.isArray(configObject.src) && Array.isArray(configObject.dst)) {
srcArray = configObject.src;
dstArray = configObject.dst;
} else if (configObject?.srcDst && Array.isArray(configObject.srcDst) && configObject.srcDst.length > 0) {
const srcDstArray = configObject.srcDst;
srcDstArray.forEach((item) => {
if (item?.src && item?.dst && typeof item.src === "string" && typeof item.dst === "string") {
srcArray.push(item.src);
dstArray.push(item.dst);
}
});
} else {
console.log("- \x1b[31mERROR:\x1b[0m Your config file has some errors. Please check your config file");
process.exit();
}
} catch (error: any) {
console.log("- \x1b[31mERROR:\x1b[0m Your config file has some errors. ERROR =>", error.message);
process.exit();
}
} else {
if (process.argv.indexOf("--src") >= 0 && process.argv.indexOf("--dst") >= 0) {
try {
srcArray = process.argv[process.argv.indexOf("--src") + 1].split(",");
dstArray = process.argv[process.argv.indexOf("--dst") + 1].split(",");
} catch (error) {}
} else {
console.log("- \x1b[31mERROR:\x1b[0m Missing source or destination file");
process.exit();
}
}
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
return {
sourceFile: srcArray.join(","),
destinationFile: dstArray.join(","),
};
};
const { sourceFile, destinationFile } = grabSrcDisStrings();
if (sourceFile && destinationFile) {
process.argv.push("--src", sourceFile, "--dst", destinationFile);
}
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
console.log("- \x1b[35mStart:\x1b[0m Running Less compiler ...");
if (!sourceFile || !destinationFile) {
console.log("- \x1b[31mERROR:\x1b[0m => Missing source or destination file");
process.exit();
}
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
/**
* Loop through source files and destination files and run the compile function
*/
function traverseFiles(src: string, dst: string) {
const sourceFiles = src.split(",");
const dstFiles = dst.split(",");
for (let i = 0; i < sourceFiles.length; i++) {
const srcFolder = sourceFiles[i];
const dstFile = dstFiles[i];
if (srcFolder?.match(/\/[^\/]+\.[^\/]+$/) && !srcFolder?.match(/\.less$/)) {
console.log("- \x1b[31mERROR:\x1b[0m Source must be a folder or a .less file");
process.exit();
}
if (!fs.existsSync(srcFolder)) {
if (srcFolder?.match(/\.less$/)) {
fs.mkdirSync(srcFolder.replace(/\/[^\/]+\.less$/, ""), { recursive: true });
fs.writeFileSync(srcFolder, "", "utf-8");
} else {
fs.mkdirSync(srcFolder.replace(/\/[^\/]+\.[^\/]+$/, ""), { recursive: true });
fs.writeFileSync((srcFolder + "/main.less").replace(/\/\//g, ""), "", "utf-8");
}
} else if (fs.existsSync(srcFolder) && fs.existsSync((srcFolder + "/main.less").replace(/\/\//g, ""))) {
}
if (!fs.existsSync(dstFile)) {
if (dstFile?.match(/\.css$/)) {
fs.mkdirSync(dstFile.replace(/\/[^\/]+\.css$/, ""), { recursive: true });
} else {
fs.mkdirSync(dstFile.replace(/\/[^\/]+\.[^\/]+$/, ""), { recursive: true });
}
}
compile(srcFolder, dstFile, null);
try {
fs.readdirSync(srcFolder).forEach((file) => {
if (file?.match(/^\[.*\.less$/)) {
compile(srcFolder + "/" + file, dstFile, null);
}
});
} catch (error) {}
if (srcFolder?.match(/\.less$/)) {
fs.watchFile(srcFolder, { interval: 500 }, (current, previous) => {
const dstFilePathRoot = dstFile?.match(/\.css$/) ? dstFile : dstFile + "/" + "_main.css";
try {
const currentProcessArgsSrc = process.argv[process.argv.indexOf("--src") + 1];
const activeSourceFiles = currentProcessArgsSrc.split(",");
if (activeSourceFiles.includes(srcFolder)) {
compile(srcFolder, dstFilePathRoot, null);
} else {
fs.unwatchFile(srcFolder);
}
} catch (error: any) {
console.log("- \x1b[31mERROR:\x1b[0m Please check your config file =>", error.message);
}
});
} else if (!srcFolder?.match(/\.[^\/]+$/)) {
fs.watch(srcFolder, { recursive: true }, (evtType, fileName) => {
if (!evtType?.match(/change/i)) {
return;
}
if (!fileName) return;
const srcFilePathRoot = srcFolder + "/main.less";
try {
const currentProcessArgsSrc = process.argv[process.argv.indexOf("--src") + 1];
const activeSourceFiles = currentProcessArgsSrc.split(",");
if (fileName?.match(/^\[/)) {
compile(srcFolder + "/" + fileName, dstFile, evtType);
} else if (fileName?.match(/^\(/) || activeSourceFiles.includes(srcFilePathRoot)) {
return;
} else {
compile(srcFilePathRoot, dstFile, evtType);
}
} catch (error: any) {
console.log("- \x1b[31mERROR:\x1b[0m Please check your config file =>", error.message);
}
});
} else {
console.log("- \x1b[31mERROR:\x1b[0m Source must be a folder or a .less file");
process.exit();
}
}
}
traverseFiles(sourceFile, destinationFile);
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
/**
* Compile less file to css function
* @param fileName - less file path or folder path
* @param dst - destination file path or folder path
* @param evtType - event type (change, rename, etc.) or null
* @returns
*/
function compile(fileName: string, dst: string, evtType: string | null) {
if (fileName?.match(/\(/) || (fileName.match(/\.[\/]$/) && !fileName?.match(/\.less$/i))) {
return;
}
let finalSrcPath = fileName?.match(/\.less$/) ? fileName : `${fileName}/main.less`;
const distFolder = dst?.match(/\.css$/) ? null : dst?.replace(/\/+$/, "");
let finalDstPath = distFolder ? `${distFolder}/_main.css` : dst;
if (distFolder && !fs.existsSync(distFolder)) {
fs.mkdirSync(distFolder, { recursive: true });
}
if (fileName?.match(/\[/)) {
const paths = fileName.split("/");
const targetPathFull = paths[paths.length - 1];
const targetPath = targetPathFull.replace(/\[|\]/g, "").replace(/\.less/, "");
const destinationFileParentFolder = dst.replace(/\/[^\/]+\.css$/, "");
const targetDstFilePath = `${destinationFileParentFolder}/${targetPath}.css`;
finalSrcPath = fileName;
finalDstPath = targetDstFilePath;
}
const executionCmd = `lessc ${finalSrcPath} ${finalDstPath}`;
exec(executionCmd, (error, stdout, stderr) => {
/** @type {Error} */
if (error) {
console.log("- \x1b[33mWarn:\x1b[0m Compilation didn't run successfully. ERROR =>", error.message);
if (!evtType?.match(/change/i) && fileName && fileName.match(/\[/)) {
fs.unlinkSync(finalDstPath);
}
return;
}
console.log("- \x1b[32mCompiled:\x1b[0m Less Compilation Successful!");
});
}
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
/**
* watch for changes to the config file
*/
if (fs.existsSync("./lesscw.config.json")) {
fs.watchFile("./lesscw.config.json", { interval: 500 }, (evtType, fileName) => {
console.log("- \x1b[34mInfo:\x1b[0m Restarting process...");
const newSrcDistStrings = grabSrcDisStrings();
if (newSrcDistStrings.destinationFile && newSrcDistStrings.sourceFile) {
process.argv.push("--src", newSrcDistStrings.sourceFile, "--dst", newSrcDistStrings.destinationFile);
traverseFiles(newSrcDistStrings.sourceFile, newSrcDistStrings.destinationFile);
}
});
}
#! /usr/bin/env node
import fs from "fs";
import { exec } from "child_process";
import { LessCssWatcherConfigObject } from "./index.d";
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
const grabSrcDisStrings = () => {
let srcArray: string[] = [];
let dstArray: string[] = [];
if (fs.existsSync("./lesscw.config.json")) {
if (process.argv.indexOf("--src")) {
try {
process.argv.splice(process.argv.indexOf("--src"));
} catch (error) {}
}
try {
const configObject: LessCssWatcherConfigObject = JSON.parse(
fs.readFileSync("./lesscw.config.json", "utf-8")
);
if (
configObject?.src &&
configObject?.dst &&
typeof configObject.src === "string" &&
typeof configObject.dst === "string"
) {
srcArray = configObject.src.split(",");
dstArray = configObject.dst.split(",");
} else if (
configObject?.src &&
configObject?.dst &&
typeof configObject.src === "object" &&
typeof configObject.dst === "object" &&
Array.isArray(configObject.src) &&
Array.isArray(configObject.dst)
) {
srcArray = configObject.src;
dstArray = configObject.dst;
} else if (
configObject?.srcDst &&
Array.isArray(configObject.srcDst) &&
configObject.srcDst.length > 0
) {
const srcDstArray = configObject.srcDst;
srcDstArray.forEach((item) => {
if (
item?.src &&
item?.dst &&
typeof item.src === "string" &&
typeof item.dst === "string"
) {
srcArray.push(item.src);
dstArray.push(item.dst);
}
});
} else {
console.log(
"- \x1b[31mERROR:\x1b[0m Your config file has some errors. Please check your config file"
);
process.exit();
}
} catch (error: any) {
console.log(
"- \x1b[31mERROR:\x1b[0m Your config file has some errors. ERROR =>",
error.message
);
process.exit();
}
} else {
if (
process.argv.indexOf("--src") >= 0 &&
process.argv.indexOf("--dst") >= 0
) {
try {
srcArray =
process.argv[process.argv.indexOf("--src") + 1].split(",");
dstArray =
process.argv[process.argv.indexOf("--dst") + 1].split(",");
} catch (error) {}
} else {
console.log(
"- \x1b[31mERROR:\x1b[0m Missing source or destination file"
);
process.exit();
}
}
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
return {
sourceFile: srcArray.join(","),
destinationFile: dstArray.join(","),
};
};
const { sourceFile, destinationFile } = grabSrcDisStrings();
if (sourceFile && destinationFile) {
process.argv.push("--src", sourceFile, "--dst", destinationFile);
}
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
console.log("- \x1b[35mStart:\x1b[0m Running Less compiler ...");
if (!sourceFile || !destinationFile) {
console.log(
"- \x1b[31mERROR:\x1b[0m => Missing source or destination file"
);
process.exit();
}
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
/**
* Loop through source files and destination files and run the compile function
*/
function traverseFiles(src: string, dst: string) {
const sourceFiles = src.split(",");
const dstFiles = dst.split(",");
for (let i = 0; i < sourceFiles.length; i++) {
const srcFolder = sourceFiles[i];
const dstFile = dstFiles[i];
if (
srcFolder?.match(/\/[^\/]+\.[^\/]+$/) &&
!srcFolder?.match(/\.less$/)
) {
console.log(
"- \x1b[31mERROR:\x1b[0m Source must be a folder or a .less file"
);
process.exit();
}
if (!fs.existsSync(srcFolder)) {
if (srcFolder?.match(/\.less$/)) {
fs.mkdirSync(srcFolder.replace(/\/[^\/]+\.less$/, ""), {
recursive: true,
});
fs.writeFileSync(srcFolder, "", "utf-8");
} else {
fs.mkdirSync(srcFolder.replace(/\/[^\/]+\.[^\/]+$/, ""), {
recursive: true,
});
fs.writeFileSync(
(srcFolder + "/main.less").replace(/\/\//g, ""),
"",
"utf-8"
);
}
} else if (
fs.existsSync(srcFolder) &&
fs.existsSync((srcFolder + "/main.less").replace(/\/\//g, ""))
) {
}
if (!fs.existsSync(dstFile)) {
if (dstFile?.match(/\.css$/)) {
fs.mkdirSync(dstFile.replace(/\/[^\/]+\.css$/, ""), {
recursive: true,
});
} else {
fs.mkdirSync(dstFile.replace(/\/[^\/]+\.[^\/]+$/, ""), {
recursive: true,
});
}
}
compile(srcFolder, dstFile, null);
try {
fs.readdirSync(srcFolder).forEach((file) => {
if (file?.match(/^\[.*\.less$/)) {
compile(srcFolder + "/" + file, dstFile, null);
}
});
} catch (error) {}
if (srcFolder?.match(/\.less$/)) {
fs.watchFile(srcFolder, { interval: 500 }, (current, previous) => {
const dstFilePathRoot = dstFile?.match(/\.css$/)
? dstFile
: dstFile + "/" + "_main.css";
try {
const currentProcessArgsSrc =
process.argv[process.argv.indexOf("--src") + 1];
const activeSourceFiles = currentProcessArgsSrc.split(",");
if (activeSourceFiles.includes(srcFolder)) {
compile(srcFolder, dstFilePathRoot, null);
} else {
fs.unwatchFile(srcFolder);
}
} catch (error: any) {
console.log(
"- \x1b[31mERROR:\x1b[0m Please check your config file =>",
error.message
);
}
});
} else if (!srcFolder?.match(/\.[^\/]+$/)) {
fs.watch(
srcFolder,
{
recursive: process.platform?.match(/win/i)
? true
: undefined,
},
(evtType, fileName) => {
if (!evtType?.match(/change/i)) {
return;
}
if (!fileName) return;
const srcFilePathRoot = srcFolder + "/main.less";
try {
const currentProcessArgsSrc =
process.argv[process.argv.indexOf("--src") + 1];
const activeSourceFiles =
currentProcessArgsSrc.split(",");
if (fileName?.match(/^\[/)) {
compile(
srcFolder + "/" + fileName,
dstFile,
evtType
);
} else if (
fileName?.match(/^\(/) ||
activeSourceFiles.includes(srcFilePathRoot)
) {
return;
} else {
compile(srcFilePathRoot, dstFile, evtType);
}
} catch (error: any) {
console.log(
"- \x1b[31mERROR:\x1b[0m Please check your config file =>",
error.message
);
}
}
);
} else {
console.log(
"- \x1b[31mERROR:\x1b[0m Source must be a folder or a .less file"
);
process.exit();
}
}
}
traverseFiles(sourceFile, destinationFile);
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
/**
* Compile less file to css function
* @param fileName - less file path or folder path
* @param dst - destination file path or folder path
* @param evtType - event type (change, rename, etc.) or null
* @returns
*/
function compile(fileName: string, dst: string, evtType: string | null) {
if (
fileName?.match(/\(/) ||
(fileName.match(/\.[\/]$/) && !fileName?.match(/\.less$/i))
) {
return;
}
let finalSrcPath = fileName?.match(/\.less$/)
? fileName
: `${fileName}/main.less`;
const distFolder = dst?.match(/\.css$/) ? null : dst?.replace(/\/+$/, "");
let finalDstPath = distFolder ? `${distFolder}/_main.css` : dst;
if (distFolder && !fs.existsSync(distFolder)) {
fs.mkdirSync(distFolder, { recursive: true });
}
if (fileName?.match(/\[/)) {
const paths = fileName.split("/");
const targetPathFull = paths[paths.length - 1];
const targetPath = targetPathFull
.replace(/\[|\]/g, "")
.replace(/\.less/, "");
const destinationFileParentFolder = dst.replace(/\/[^\/]+\.css$/, "");
const targetDstFilePath = `${destinationFileParentFolder}/${targetPath}.css`;
finalSrcPath = fileName;
finalDstPath = targetDstFilePath;
}
const executionCmd = `lessc ${finalSrcPath} ${finalDstPath}`;
exec(executionCmd, (error, stdout, stderr) => {
/** @type {Error} */
if (error) {
console.log(
"- \x1b[33mWarn:\x1b[0m Compilation didn't run successfully. ERROR =>",
error.message
);
if (
!evtType?.match(/change/i) &&
fileName &&
fileName.match(/\[/)
) {
fs.unlinkSync(finalDstPath);
}
return;
}
console.log("- \x1b[32mCompiled:\x1b[0m Less Compilation Successful!");
});
}
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
//////////////////////////////////////////////////////////////////////////////
/**
* watch for changes to the config file
*/
if (fs.existsSync("./lesscw.config.json")) {
fs.watchFile(
"./lesscw.config.json",
{ interval: 500 },
(evtType, fileName) => {
console.log("- \x1b[34mInfo:\x1b[0m Restarting process...");
const newSrcDistStrings = grabSrcDisStrings();
if (
newSrcDistStrings.destinationFile &&
newSrcDistStrings.sourceFile
) {
process.argv.push(
"--src",
newSrcDistStrings.sourceFile,
"--dst",
newSrcDistStrings.destinationFile
);
traverseFiles(
newSrcDistStrings.sourceFile,
newSrcDistStrings.destinationFile
);
}
}
);
}

26
tsconfig.json
View File

@ -1,13 +1,13 @@
{
"compilerOptions": {
"target": "es2016",
"module": "commonjs",
"rootDir": "./src",
"outDir": "./dist",
"removeComments": true,
"esModuleInterop": true,
"forceConsistentCasingInFileNames": true,
"strict": true,
"skipLibCheck": true
}
}
{
"compilerOptions": {
"target": "es2016",
"module": "commonjs",
"rootDir": "./src",
"outDir": "./dist",
"removeComments": true,
"esModuleInterop": true,
"forceConsistentCasingInFileNames": true,
"strict": true,
"skipLibCheck": true
}
}