Initial commit: Developer Tools MVP with visual editor

- Complete React app with 7 developer tools
- JSON Tool with visual structured editor
- Serialize Tool with visual structured editor
- URL, Base64, CSV/JSON, Beautifier, Diff tools
- Responsive navigation with dropdown menu
- Dark/light mode toggle
- Mobile-responsive design with sticky header
- All tools working with copy/paste functionality
This commit is contained in:
dwindown
2025-08-02 09:31:26 +07:00
commit 7f2dd5260f
45657 changed files with 4730486 additions and 0 deletions

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node_modules/write-file-atomic/CHANGELOG.md generated vendored Normal file
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# 3.0.0
* Implement options.tmpfileCreated callback.
* Drop Node.js 6, modernize code, return Promise from async function.
* Support write TypedArray's like in node fs.writeFile.
* Remove graceful-fs dependency.
# 2.4.3
* Ignore errors raised by `fs.closeSync` when cleaning up after a write
error.
# 2.4.2
* A pair of patches to fix some fd leaks. We would leak fds with sync use
when errors occured and with async use any time fsync was not in use. (#34)
# 2.4.1
* Fix a bug where `signal-exit` instances would be leaked. This was fixed when addressing #35.
# 2.4.0
## Features
* Allow chown and mode options to be set to false to disable the defaulting behavior. (#20)
* Support passing encoding strings in options slot for compat with Node.js API. (#31)
* Add support for running inside of worker threads (#37)
## Fixes
* Remove unneeded call when returning success (#36)

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Copyright (c) 2015, Rebecca Turner
Permission to use, copy, modify, and/or distribute this software for any purpose with or without fee is hereby granted, provided that the above copyright notice and this permission notice appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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write-file-atomic
-----------------
This is an extension for node's `fs.writeFile` that makes its operation
atomic and allows you set ownership (uid/gid of the file).
### var writeFileAtomic = require('write-file-atomic')<br>writeFileAtomic(filename, data, [options], [callback])
* filename **String**
* data **String** | **Buffer**
* options **Object** | **String**
* chown **Object** default, uid & gid of existing file, if any
* uid **Number**
* gid **Number**
* encoding **String** | **Null** default = 'utf8'
* fsync **Boolean** default = true
* mode **Number** default, from existing file, if any
* tmpfileCreated **Function** called when the tmpfile is created
* callback **Function**
Atomically and asynchronously writes data to a file, replacing the file if it already
exists. data can be a string or a buffer.
The file is initially named `filename + "." + murmurhex(__filename, process.pid, ++invocations)`.
Note that `require('worker_threads').threadId` is used in addition to `process.pid` if running inside of a worker thread.
If writeFile completes successfully then, if passed the **chown** option it will change
the ownership of the file. Finally it renames the file back to the filename you specified. If
it encounters errors at any of these steps it will attempt to unlink the temporary file and then
pass the error back to the caller.
If multiple writes are concurrently issued to the same file, the write operations are put into a queue and serialized in the order they were called, using Promises. Writes to different files are still executed in parallel.
If provided, the **chown** option requires both **uid** and **gid** properties or else
you'll get an error. If **chown** is not specified it will default to using
the owner of the previous file. To prevent chown from being ran you can
also pass `false`, in which case the file will be created with the current user's credentials.
If **mode** is not specified, it will default to using the permissions from
an existing file, if any. Expicitly setting this to `false` remove this default, resulting
in a file created with the system default permissions.
If options is a String, it's assumed to be the **encoding** option. The **encoding** option is ignored if **data** is a buffer. It defaults to 'utf8'.
If the **fsync** option is **false**, writeFile will skip the final fsync call.
If the **tmpfileCreated** option is specified it will be called with the name of the tmpfile when created.
Example:
```javascript
writeFileAtomic('message.txt', 'Hello Node', {chown:{uid:100,gid:50}}, function (err) {
if (err) throw err;
console.log('It\'s saved!');
});
```
This function also supports async/await:
```javascript
(async () => {
try {
await writeFileAtomic('message.txt', 'Hello Node', {chown:{uid:100,gid:50}});
console.log('It\'s saved!');
} catch (err) {
console.error(err);
process.exit(1);
}
})();
```
### var writeFileAtomicSync = require('write-file-atomic').sync<br>writeFileAtomicSync(filename, data, [options])
The synchronous version of **writeFileAtomic**.

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node_modules/write-file-atomic/index.js generated vendored Normal file
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'use strict'
module.exports = writeFile
module.exports.sync = writeFileSync
module.exports._getTmpname = getTmpname // for testing
module.exports._cleanupOnExit = cleanupOnExit
const fs = require('fs')
const MurmurHash3 = require('imurmurhash')
const onExit = require('signal-exit')
const path = require('path')
const isTypedArray = require('is-typedarray')
const typedArrayToBuffer = require('typedarray-to-buffer')
const { promisify } = require('util')
const activeFiles = {}
// if we run inside of a worker_thread, `process.pid` is not unique
/* istanbul ignore next */
const threadId = (function getId () {
try {
const workerThreads = require('worker_threads')
/// if we are in main thread, this is set to `0`
return workerThreads.threadId
} catch (e) {
// worker_threads are not available, fallback to 0
return 0
}
})()
let invocations = 0
function getTmpname (filename) {
return filename + '.' +
MurmurHash3(__filename)
.hash(String(process.pid))
.hash(String(threadId))
.hash(String(++invocations))
.result()
}
function cleanupOnExit (tmpfile) {
return () => {
try {
fs.unlinkSync(typeof tmpfile === 'function' ? tmpfile() : tmpfile)
} catch (_) {}
}
}
function serializeActiveFile (absoluteName) {
return new Promise(resolve => {
// make a queue if it doesn't already exist
if (!activeFiles[absoluteName]) activeFiles[absoluteName] = []
activeFiles[absoluteName].push(resolve) // add this job to the queue
if (activeFiles[absoluteName].length === 1) resolve() // kick off the first one
})
}
// https://github.com/isaacs/node-graceful-fs/blob/master/polyfills.js#L315-L342
function isChownErrOk (err) {
if (err.code === 'ENOSYS') {
return true
}
const nonroot = !process.getuid || process.getuid() !== 0
if (nonroot) {
if (err.code === 'EINVAL' || err.code === 'EPERM') {
return true
}
}
return false
}
async function writeFileAsync (filename, data, options = {}) {
if (typeof options === 'string') {
options = { encoding: options }
}
let fd
let tmpfile
/* istanbul ignore next -- The closure only gets called when onExit triggers */
const removeOnExitHandler = onExit(cleanupOnExit(() => tmpfile))
const absoluteName = path.resolve(filename)
try {
await serializeActiveFile(absoluteName)
const truename = await promisify(fs.realpath)(filename).catch(() => filename)
tmpfile = getTmpname(truename)
if (!options.mode || !options.chown) {
// Either mode or chown is not explicitly set
// Default behavior is to copy it from original file
const stats = await promisify(fs.stat)(truename).catch(() => {})
if (stats) {
if (options.mode == null) {
options.mode = stats.mode
}
if (options.chown == null && process.getuid) {
options.chown = { uid: stats.uid, gid: stats.gid }
}
}
}
fd = await promisify(fs.open)(tmpfile, 'w', options.mode)
if (options.tmpfileCreated) {
await options.tmpfileCreated(tmpfile)
}
if (isTypedArray(data)) {
data = typedArrayToBuffer(data)
}
if (Buffer.isBuffer(data)) {
await promisify(fs.write)(fd, data, 0, data.length, 0)
} else if (data != null) {
await promisify(fs.write)(fd, String(data), 0, String(options.encoding || 'utf8'))
}
if (options.fsync !== false) {
await promisify(fs.fsync)(fd)
}
await promisify(fs.close)(fd)
fd = null
if (options.chown) {
await promisify(fs.chown)(tmpfile, options.chown.uid, options.chown.gid).catch(err => {
if (!isChownErrOk(err)) {
throw err
}
})
}
if (options.mode) {
await promisify(fs.chmod)(tmpfile, options.mode).catch(err => {
if (!isChownErrOk(err)) {
throw err
}
})
}
await promisify(fs.rename)(tmpfile, truename)
} finally {
if (fd) {
await promisify(fs.close)(fd).catch(
/* istanbul ignore next */
() => {}
)
}
removeOnExitHandler()
await promisify(fs.unlink)(tmpfile).catch(() => {})
activeFiles[absoluteName].shift() // remove the element added by serializeSameFile
if (activeFiles[absoluteName].length > 0) {
activeFiles[absoluteName][0]() // start next job if one is pending
} else delete activeFiles[absoluteName]
}
}
function writeFile (filename, data, options, callback) {
if (options instanceof Function) {
callback = options
options = {}
}
const promise = writeFileAsync(filename, data, options)
if (callback) {
promise.then(callback, callback)
}
return promise
}
function writeFileSync (filename, data, options) {
if (typeof options === 'string') options = { encoding: options }
else if (!options) options = {}
try {
filename = fs.realpathSync(filename)
} catch (ex) {
// it's ok, it'll happen on a not yet existing file
}
const tmpfile = getTmpname(filename)
if (!options.mode || !options.chown) {
// Either mode or chown is not explicitly set
// Default behavior is to copy it from original file
try {
const stats = fs.statSync(filename)
options = Object.assign({}, options)
if (!options.mode) {
options.mode = stats.mode
}
if (!options.chown && process.getuid) {
options.chown = { uid: stats.uid, gid: stats.gid }
}
} catch (ex) {
// ignore stat errors
}
}
let fd
const cleanup = cleanupOnExit(tmpfile)
const removeOnExitHandler = onExit(cleanup)
let threw = true
try {
fd = fs.openSync(tmpfile, 'w', options.mode || 0o666)
if (options.tmpfileCreated) {
options.tmpfileCreated(tmpfile)
}
if (isTypedArray(data)) {
data = typedArrayToBuffer(data)
}
if (Buffer.isBuffer(data)) {
fs.writeSync(fd, data, 0, data.length, 0)
} else if (data != null) {
fs.writeSync(fd, String(data), 0, String(options.encoding || 'utf8'))
}
if (options.fsync !== false) {
fs.fsyncSync(fd)
}
fs.closeSync(fd)
fd = null
if (options.chown) {
try {
fs.chownSync(tmpfile, options.chown.uid, options.chown.gid)
} catch (err) {
if (!isChownErrOk(err)) {
throw err
}
}
}
if (options.mode) {
try {
fs.chmodSync(tmpfile, options.mode)
} catch (err) {
if (!isChownErrOk(err)) {
throw err
}
}
}
fs.renameSync(tmpfile, filename)
threw = false
} finally {
if (fd) {
try {
fs.closeSync(fd)
} catch (ex) {
// ignore close errors at this stage, error may have closed fd already.
}
}
removeOnExitHandler()
if (threw) {
cleanup()
}
}
}

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The ISC License
Copyright (c) 2015, Contributors
Permission to use, copy, modify, and/or distribute this software
for any purpose with or without fee is hereby granted, provided
that the above copyright notice and this permission notice
appear in all copies.
THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE
LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES
OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION,
ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

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# signal-exit
[![Build Status](https://travis-ci.org/tapjs/signal-exit.png)](https://travis-ci.org/tapjs/signal-exit)
[![Coverage](https://coveralls.io/repos/tapjs/signal-exit/badge.svg?branch=master)](https://coveralls.io/r/tapjs/signal-exit?branch=master)
[![NPM version](https://img.shields.io/npm/v/signal-exit.svg)](https://www.npmjs.com/package/signal-exit)
[![Standard Version](https://img.shields.io/badge/release-standard%20version-brightgreen.svg)](https://github.com/conventional-changelog/standard-version)
When you want to fire an event no matter how a process exits:
* reaching the end of execution.
* explicitly having `process.exit(code)` called.
* having `process.kill(pid, sig)` called.
* receiving a fatal signal from outside the process
Use `signal-exit`.
```js
var onExit = require('signal-exit')
onExit(function (code, signal) {
console.log('process exited!')
})
```
## API
`var remove = onExit(function (code, signal) {}, options)`
The return value of the function is a function that will remove the
handler.
Note that the function *only* fires for signals if the signal would
cause the process to exit. That is, there are no other listeners, and
it is a fatal signal.
## Options
* `alwaysLast`: Run this handler after any other signal or exit
handlers. This causes `process.emit` to be monkeypatched.

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// Note: since nyc uses this module to output coverage, any lines
// that are in the direct sync flow of nyc's outputCoverage are
// ignored, since we can never get coverage for them.
// grab a reference to node's real process object right away
var process = global.process
const processOk = function (process) {
return process &&
typeof process === 'object' &&
typeof process.removeListener === 'function' &&
typeof process.emit === 'function' &&
typeof process.reallyExit === 'function' &&
typeof process.listeners === 'function' &&
typeof process.kill === 'function' &&
typeof process.pid === 'number' &&
typeof process.on === 'function'
}
// some kind of non-node environment, just no-op
/* istanbul ignore if */
if (!processOk(process)) {
module.exports = function () {
return function () {}
}
} else {
var assert = require('assert')
var signals = require('./signals.js')
var isWin = /^win/i.test(process.platform)
var EE = require('events')
/* istanbul ignore if */
if (typeof EE !== 'function') {
EE = EE.EventEmitter
}
var emitter
if (process.__signal_exit_emitter__) {
emitter = process.__signal_exit_emitter__
} else {
emitter = process.__signal_exit_emitter__ = new EE()
emitter.count = 0
emitter.emitted = {}
}
// Because this emitter is a global, we have to check to see if a
// previous version of this library failed to enable infinite listeners.
// I know what you're about to say. But literally everything about
// signal-exit is a compromise with evil. Get used to it.
if (!emitter.infinite) {
emitter.setMaxListeners(Infinity)
emitter.infinite = true
}
module.exports = function (cb, opts) {
/* istanbul ignore if */
if (!processOk(global.process)) {
return function () {}
}
assert.equal(typeof cb, 'function', 'a callback must be provided for exit handler')
if (loaded === false) {
load()
}
var ev = 'exit'
if (opts && opts.alwaysLast) {
ev = 'afterexit'
}
var remove = function () {
emitter.removeListener(ev, cb)
if (emitter.listeners('exit').length === 0 &&
emitter.listeners('afterexit').length === 0) {
unload()
}
}
emitter.on(ev, cb)
return remove
}
var unload = function unload () {
if (!loaded || !processOk(global.process)) {
return
}
loaded = false
signals.forEach(function (sig) {
try {
process.removeListener(sig, sigListeners[sig])
} catch (er) {}
})
process.emit = originalProcessEmit
process.reallyExit = originalProcessReallyExit
emitter.count -= 1
}
module.exports.unload = unload
var emit = function emit (event, code, signal) {
/* istanbul ignore if */
if (emitter.emitted[event]) {
return
}
emitter.emitted[event] = true
emitter.emit(event, code, signal)
}
// { <signal>: <listener fn>, ... }
var sigListeners = {}
signals.forEach(function (sig) {
sigListeners[sig] = function listener () {
/* istanbul ignore if */
if (!processOk(global.process)) {
return
}
// If there are no other listeners, an exit is coming!
// Simplest way: remove us and then re-send the signal.
// We know that this will kill the process, so we can
// safely emit now.
var listeners = process.listeners(sig)
if (listeners.length === emitter.count) {
unload()
emit('exit', null, sig)
/* istanbul ignore next */
emit('afterexit', null, sig)
/* istanbul ignore next */
if (isWin && sig === 'SIGHUP') {
// "SIGHUP" throws an `ENOSYS` error on Windows,
// so use a supported signal instead
sig = 'SIGINT'
}
/* istanbul ignore next */
process.kill(process.pid, sig)
}
}
})
module.exports.signals = function () {
return signals
}
var loaded = false
var load = function load () {
if (loaded || !processOk(global.process)) {
return
}
loaded = true
// This is the number of onSignalExit's that are in play.
// It's important so that we can count the correct number of
// listeners on signals, and don't wait for the other one to
// handle it instead of us.
emitter.count += 1
signals = signals.filter(function (sig) {
try {
process.on(sig, sigListeners[sig])
return true
} catch (er) {
return false
}
})
process.emit = processEmit
process.reallyExit = processReallyExit
}
module.exports.load = load
var originalProcessReallyExit = process.reallyExit
var processReallyExit = function processReallyExit (code) {
/* istanbul ignore if */
if (!processOk(global.process)) {
return
}
process.exitCode = code || /* istanbul ignore next */ 0
emit('exit', process.exitCode, null)
/* istanbul ignore next */
emit('afterexit', process.exitCode, null)
/* istanbul ignore next */
originalProcessReallyExit.call(process, process.exitCode)
}
var originalProcessEmit = process.emit
var processEmit = function processEmit (ev, arg) {
if (ev === 'exit' && processOk(global.process)) {
/* istanbul ignore else */
if (arg !== undefined) {
process.exitCode = arg
}
var ret = originalProcessEmit.apply(this, arguments)
/* istanbul ignore next */
emit('exit', process.exitCode, null)
/* istanbul ignore next */
emit('afterexit', process.exitCode, null)
/* istanbul ignore next */
return ret
} else {
return originalProcessEmit.apply(this, arguments)
}
}
}

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{
"name": "signal-exit",
"version": "3.0.7",
"description": "when you want to fire an event no matter how a process exits.",
"main": "index.js",
"scripts": {
"test": "tap",
"snap": "tap",
"preversion": "npm test",
"postversion": "npm publish",
"prepublishOnly": "git push origin --follow-tags"
},
"files": [
"index.js",
"signals.js"
],
"repository": {
"type": "git",
"url": "https://github.com/tapjs/signal-exit.git"
},
"keywords": [
"signal",
"exit"
],
"author": "Ben Coe <ben@npmjs.com>",
"license": "ISC",
"bugs": {
"url": "https://github.com/tapjs/signal-exit/issues"
},
"homepage": "https://github.com/tapjs/signal-exit",
"devDependencies": {
"chai": "^3.5.0",
"coveralls": "^3.1.1",
"nyc": "^15.1.0",
"standard-version": "^9.3.1",
"tap": "^15.1.1"
}
}

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// This is not the set of all possible signals.
//
// It IS, however, the set of all signals that trigger
// an exit on either Linux or BSD systems. Linux is a
// superset of the signal names supported on BSD, and
// the unknown signals just fail to register, so we can
// catch that easily enough.
//
// Don't bother with SIGKILL. It's uncatchable, which
// means that we can't fire any callbacks anyway.
//
// If a user does happen to register a handler on a non-
// fatal signal like SIGWINCH or something, and then
// exit, it'll end up firing `process.emit('exit')`, so
// the handler will be fired anyway.
//
// SIGBUS, SIGFPE, SIGSEGV and SIGILL, when not raised
// artificially, inherently leave the process in a
// state from which it is not safe to try and enter JS
// listeners.
module.exports = [
'SIGABRT',
'SIGALRM',
'SIGHUP',
'SIGINT',
'SIGTERM'
]
if (process.platform !== 'win32') {
module.exports.push(
'SIGVTALRM',
'SIGXCPU',
'SIGXFSZ',
'SIGUSR2',
'SIGTRAP',
'SIGSYS',
'SIGQUIT',
'SIGIOT'
// should detect profiler and enable/disable accordingly.
// see #21
// 'SIGPROF'
)
}
if (process.platform === 'linux') {
module.exports.push(
'SIGIO',
'SIGPOLL',
'SIGPWR',
'SIGSTKFLT',
'SIGUNUSED'
)
}

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{
"name": "write-file-atomic",
"version": "3.0.3",
"description": "Write files in an atomic fashion w/configurable ownership",
"main": "index.js",
"scripts": {
"test": "tap",
"posttest": "npm run lint",
"lint": "standard",
"postlint": "rimraf chowncopy good nochmod nochown nofsync nofsyncopt noopen norename \"norename nounlink\" nowrite",
"preversion": "npm test",
"postversion": "npm publish",
"prepublishOnly": "git push origin --follow-tags"
},
"repository": {
"type": "git",
"url": "git://github.com/npm/write-file-atomic.git"
},
"keywords": [
"writeFile",
"atomic"
],
"author": "Rebecca Turner <me@re-becca.org> (http://re-becca.org)",
"license": "ISC",
"bugs": {
"url": "https://github.com/npm/write-file-atomic/issues"
},
"homepage": "https://github.com/npm/write-file-atomic",
"dependencies": {
"imurmurhash": "^0.1.4",
"is-typedarray": "^1.0.0",
"signal-exit": "^3.0.2",
"typedarray-to-buffer": "^3.1.5"
},
"devDependencies": {
"mkdirp": "^0.5.1",
"require-inject": "^1.4.4",
"rimraf": "^2.6.3",
"standard": "^14.3.1",
"tap": "^14.10.6"
},
"files": [
"index.js"
],
"tap": {
"100": true
}
}