Provides a cross environment standardized API for common used functions.

This module is a constant effort of improvement to achieve a stable and flexible, free open-source solution, for common case developing needs.

Currently supporting:

• OS
• Run
• Request
• Compress
• Util
• Progress

You can access the source code at vimlet/commons

Installation:

• Via NPM: npm install @vimlet/commons

Basic usage:

const commons = require("@vimlet/commons");

var src = require("path").join(__dirname, "resources/compress/pack");
var dst = require("path").join(__dirname, "resources/compress/file.zip");

commons.compress.pack(src, dst, "zip", null, function(error) {
    if(error) {
        console.log("Fail");
    } else {
        console.log("Success");
    }
});

Compress

compress.pack(file, dest, format, options, doneHandler)

Compress.

• file: Source file or directory.
• dest: Destination file.
• options:

1. packHandler: Progression callback. function(error, entry, entrySize, totalSize, totalCount).
2. outputHandler: Default output callback function(out), redirects stdout when provided.
3. format: Compression format (zip, tar, tgz).

• doneHandler: Default done callback function(error, data).

compress.unpack(file, dest, format, options, doneHandler)

Uncompress.

• file: Source file or directory.
• dest: Destination folder.
• options:

1. unpackHandler: Progression callback. function(error, entry, entrySize, totalSize, totalCount).
2. outputHandler: Default output callback function(out), redirects stdout when provided.
3. format: Compression format (zip, tar, tgz).

• doneHandler: Default done callback function(error, data).

Copy

copy.copy(include, output, options, callback);

Copy files in given pattern.

• include: Directory to look for files.
• output: Directory where files will be written.
• options:

1. exclude: Used to skip files that you don't want to copy.
2. clean: Empty output directory before copy.

• callback.

copy.watch(include, output, options);

Watch for file changes in given pattern. Watch for file changes in given pattern.

• include: Directory to look for files.
• output: Directory where files will be written.
• options:

1. exclude: Used to skip files that you don't want to copy.
2. clean: Empty output directory before copy.

Io

io.getFiles(dir, options)

Get files from directory. Return an array of objects like:

{
    root: "Root path",
    files: "Array with paths to files"
}

• dir: Array of patterns to search or single pattern.
• options:

1. exclude: patterns to exclude from search.
2. ignoreExtension: ignore file extensions.

io.absoluteFiles(index)

Get files from index object. Return an array of absolute paths.

• index: Object with root and relative paths.

io.getRootFromPattern(pattern)

Get root folder from a given pattern.

io.isDirectory(path)

Return true if path is a path to a directory, false if it is a path to a file.

io.getFileSize(path)

Return the size of the file in bytes.

io.deleteFolderRecursive(folderPath, callback) io.deleteFolderRecursiveSync(folderPath)

Delete a folder and all its content.

io.isInPattern(filePath, pattern, options)

Return true if given file belongs to given pattern. False if not.

• options:

1. exclude: files to exclude from search.

io.writeToDisk(output, data, callback)

Write data to disk.

• output: Path to write the file.
• data: Data to write.

io.getCommonBasePath(paths)

Return a path that all given paths have in common.

• paths: String with multiple paths to compare.

Os

os.isWindows()

os.isLinux()

os.isMac()

os.is64Bit()

os.getUnixUserProfile()

os.setUserEnvironmentVariable(key, value, callback)

Sets environment variables without admin privileges.

• key: Environment variable key.
• value: Environment variable value.
• callback

os.addToUserPath(value, callback)

Sets path variables without admin privileges.

• value: Path value to append.
• callback

os.killProcessByName(name, options, callback)

Kill a process by its name.

• name: Name of the process to be killed.
• options:

1. execHandler: Default output callback function(out), redirects stdout when provided.

• callback

os.createSymlink(dest, src, options, callback)

Creates a symbolic link without admin privileges.

• dest: Symlink destination path.
• src: Symlink source path.
• options:

2. execHandler: Default output callback function(out), redirects stdout when provided.

• callback

os.findExec(binary, callback)

Asserts if a command is accessible from the command line.

• binary: Symlink destination path.
• callback

Progress

progress.paintProgress(value, outputHandler)

Prints progress at a given percent.

• value: Progress percent.
• outputHandler: Default output callback function(out), redirects stdout when provided.

progress.showProgress(value, options, outputHandler)

Prints progress percent by value and total and returns the percent.

• value: Current progress value.
• options:

1. paintProgress: Function that actually does the painting.
2. total: Total progress value.

• outputHandler: Default output callback function(out), redirects stdout when provided.

progress.progressHandler(total, max, options, mainOutputHandler)

Handle progress painting avoiding duplicated output of the same progress.

• total: Total percent value.
• max:Provide a virtual limit that avoids printing over this value.
• options:

1. paintProgress: Function that actually does the painting.

• mainOutputHandler: Default output callback function(out), redirects stdout when provided.

Request

request.download(url, dest, options, doneHandler)

Downloads a file.

• url: The URL source to download.
• dest: he place where the downloaded file will be stored.
• options:

1. downloadHandler: A progress callback function(received, total, statusCode).
2. outputHandler: Default output callback function(out), redirects stdout when provided.

• doneHandler: Default done callback function(error, status).

Run

run.exec(command, options, doneHandler)

Runs a file or command and streams its output.

• command: File or command to be executed.
• options:

1. execHandler: Default output callback function(out, error), redirects stdout when provided.
2. args: Executable arguments(string[]).
3. workingDirectory: The path from where the executable will run.

• doneHandler: Default done callback function(error, exitCode).

run.fetch(command, options, doneHandler)

Runs a file or command and buffers its output.

• command: File or command to be executed.
• options:

1. args: Executable arguments(string[]).
2. workingDirectory: The path from where the executable will run.

• doneHandler: Default done callback function(error, exitCode).

License

This project is under MIT License. See LICENSE for details.