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factoring docs, sed.js fix

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Artur Adib 2013-08-25 18:09:31 -04:00
parent d3fcf012e4
commit 561b1ea99c
23 changed files with 413 additions and 384 deletions
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74
README.md
View File

@ -150,9 +150,11 @@ All commands run synchronously, unless otherwise stated.
### cd('dir')
Changes to directory `dir` for the duration of the script
### pwd()
Returns the current directory.
### ls([options ,] path [,path ...])
### ls([options ,] path_array)
Available options:
@ -170,6 +172,7 @@ ls('-R', ['/users/me', '/tmp']); // same as above
Returns array of files in the given path, or in current directory if no path provided.
### find(path [,path ...])
### find(path_array)
Examples:
@ -185,6 +188,7 @@ Returns array of all files (however deep) in the given paths.
The main difference from `ls('-R', path)` is that the resulting file names
include the base directories, e.g. `lib/resources/file1` instead of just `file1`.
### cp([options ,] source [,source ...], dest)
### cp([options ,] source_array, dest)
Available options:
@ -202,6 +206,7 @@ cp('-Rf', ['/tmp/*', '/usr/local/*'], '/home/tmp'); // same as above
Copies files. The wildcard `*` is accepted.
### rm([options ,] file [, file ...])
### rm([options ,] file_array)
Available options:
@ -219,6 +224,7 @@ rm(['some_file.txt', 'another_file.txt']); // same as above
Removes files. The wildcard `*` is accepted.
### mv(source [, source ...], dest')
### mv(source_array, dest')
Available options:
@ -235,6 +241,7 @@ mv(['file1', 'file2'], 'dir/'); // same as above
Moves files. The wildcard `*` is accepted.
### mkdir([options ,] dir [, dir ...])
### mkdir([options ,] dir_array)
Available options:
@ -250,6 +257,7 @@ mkdir('-p', ['/tmp/a/b/c/d', '/tmp/e/f/g']); // same as above
Creates directories.
### test(expression)
Available expression primaries:
@ -266,11 +274,12 @@ Examples:
```javascript
if (test('-d', path)) { /* do something with dir */ };
if (!test('-f', path)) continue; // skip if it's not a regular file
if (!test('-f', path)) continue; // skip if it's a regular file
```
Evaluates expression using the available primaries and returns corresponding value.
### cat(file [, file ...])
### cat(file_array)
@ -286,6 +295,7 @@ Returns a string containing the given file, or a concatenated string
containing the files if more than one file is given (a new line character is
introduced between each file). Wildcard `*` accepted.
### 'string'.to(file)
Examples:
@ -297,6 +307,7 @@ cat('input.txt').to('output.txt');
Analogous to the redirection operator `>` in Unix, but works with JavaScript strings (such as
those returned by `cat`, `grep`, etc). _Like Unix redirections, `to()` will overwrite any existing file!_
### sed([options ,] search_regex, replace_str, file)
Available options:
@ -312,6 +323,7 @@ sed(/.*DELETE_THIS_LINE.*\n/, '', 'source.js');
Reads an input string from `file` and performs a JavaScript `replace()` on the input
using the given search regex and replacement string. Returns the new string after replacement.
### grep([options ,] regex_filter, file [, file ...])
### grep([options ,] regex_filter, file_array)
Available options:
@ -328,6 +340,7 @@ grep('GLOBAL_VARIABLE', '*.js');
Reads input string from given files and returns a string containing all lines of the
file that match the given `regex_filter`. Wildcard `*` accepted.
### which(command)
Examples:
@ -339,6 +352,7 @@ var nodeExec = which('node');
Searches for `command` in the system's PATH. On Windows looks for `.exe`, `.cmd`, and `.bat` extensions.
Returns string containing the absolute path to the command.
### echo(string [,string ...])
Examples:
@ -351,20 +365,6 @@ var str = echo('hello world');
Prints string to stdout, and returns string with additional utility methods
like `.to()`.
### dirs([options | '+N' | '-N'])
Available options:
+ `-c`: Clears the directory stack by deleting all of the elements.
Arguments:
+ `+N`: Displays the Nth directory (counting from the left of the list printed by dirs when invoked without options), starting with zero.
+ `-N`: Displays the Nth directory (counting from the right of the list printed by dirs when invoked without options), starting with zero.
Display the list of currently remembered directories. Returns an array of paths in the stack, or a single path if +N or -N was specified.
See also: pushd, popd
### pushd([options,] [dir | '-N' | '+N'])
@ -411,6 +411,22 @@ echo(process.cwd()); // '/usr'
When no arguments are given, popd removes the top directory from the stack and performs a cd to the new top directory. The elements are numbered from 0 starting at the first directory listed with dirs; i.e., popd is equivalent to popd +0. Returns an array of paths in the stack.
### dirs([options | '+N' | '-N'])
Available options:
+ `-c`: Clears the directory stack by deleting all of the elements.
Arguments:
+ `+N`: Displays the Nth directory (counting from the left of the list printed by dirs when invoked without options), starting with zero.
+ `-N`: Displays the Nth directory (counting from the right of the list printed by dirs when invoked without options), starting with zero.
Display the list of currently remembered directories. Returns an array of paths in the stack, or a single path if +N or -N was specified.
See also: pushd, popd
### exit(code)
Exits the current process with the given exit code.
@ -448,6 +464,7 @@ the `callback` gets the arguments `(code, output)`.
the current synchronous implementation uses a lot of CPU. This should be getting
fixed soon.
### chmod(octal_mode || octal_string, file)
### chmod(symbolic_mode, file)
@ -461,7 +478,7 @@ Examples:
```javascript
chmod(755, '/Users/brandon');
chmod('755', '/Users/brandon'); // same as above
chmod('755', '/Users/brandon'); // same as above
chmod('u+x', '/Users/brandon');
```
@ -474,6 +491,20 @@ Notable exceptions:
given to the umask.
+ There is no "quiet" option since default behavior is to run silent.
## Non-Unix commands
### tempdir()
Searches and returns string containing a writeable, platform-dependent temporary directory.
Follows Python's [tempfile algorithm](http://docs.python.org/library/tempfile.html#tempfile.tempdir).
### error()
Tests if error occurred in the last command. Returns `null` if no error occurred,
otherwise returns string explaining the error
## Configuration
@ -500,14 +531,3 @@ cp('this_file_does_not_exist', '/dev/null'); // dies here
```
If `true` the script will die on errors. Default is `false`.
## Non-Unix commands
### tempdir()
Searches and returns string containing a writeable, platform-dependent temporary directory.
Follows Python's [tempfile algorithm](http://docs.python.org/library/tempfile.html#tempfile.tempdir).
### error()
Tests if error occurred in the last command. Returns `null` if no error occurred,
otherwise returns string explaining the error

6
scripts/docs.js → scripts/generate-docs.js
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@ -7,6 +7,12 @@ cd(__dirname + '/..');
// Extract docs from shell.js
var docs = grep('//@', 'shell.js');
docs = docs.replace(/\/\/\@include (.+)/g, function(match, path) {
var file = path.match('.js$') ? path : path+'.js';
return grep('//@', file);
});
// Remove '//@'
docs = docs.replace(/\/\/\@ ?/g, '');
// Append docs to README

383
shell.js
View File

@ -17,327 +17,71 @@ var common = require('./src/common');
//@ All commands run synchronously, unless otherwise stated.
//@
//@
//@ ### cd('dir')
//@ Changes to directory `dir` for the duration of the script
//@include ./src/cd
var _cd = require('./src/cd');
exports.cd = common.wrap('cd', _cd);
//@
//@ ### pwd()
//@ Returns the current directory.
//@include ./src/pwd
var _pwd = require('./src/pwd');
exports.pwd = common.wrap('pwd', _pwd);
//@
//@ ### ls([options ,] path [,path ...])
//@ ### ls([options ,] path_array)
//@ Available options:
//@
//@ + `-R`: recursive
//@ + `-A`: all files (include files beginning with `.`, except for `.` and `..`)
//@
//@ Examples:
//@
//@ ```javascript
//@ ls('projs/*.js');
//@ ls('-R', '/users/me', '/tmp');
//@ ls('-R', ['/users/me', '/tmp']); // same as above
//@ ```
//@
//@ Returns array of files in the given path, or in current directory if no path provided.
//@include ./src/ls
var _ls = require('./src/ls');
exports.ls = common.wrap('ls', _ls);
//@
//@ ### find(path [,path ...])
//@ ### find(path_array)
//@ Examples:
//@
//@ ```javascript
//@ find('src', 'lib');
//@ find(['src', 'lib']); // same as above
//@ find('.').filter(function(file) { return file.match(/\.js$/); });
//@ ```
//@
//@ Returns array of all files (however deep) in the given paths.
//@
//@ The main difference from `ls('-R', path)` is that the resulting file names
//@ include the base directories, e.g. `lib/resources/file1` instead of just `file1`.
//@include ./src/find
var _find = require('./src/find');
exports.find = common.wrap('find', _find);
//@
//@ ### cp([options ,] source [,source ...], dest)
//@ ### cp([options ,] source_array, dest)
//@ Available options:
//@
//@ + `-f`: force
//@ + `-r, -R`: recursive
//@
//@ Examples:
//@
//@ ```javascript
//@ cp('file1', 'dir1');
//@ cp('-Rf', '/tmp/*', '/usr/local/*', '/home/tmp');
//@ cp('-Rf', ['/tmp/*', '/usr/local/*'], '/home/tmp'); // same as above
//@ ```
//@
//@ Copies files. The wildcard `*` is accepted.
//@include ./src/cp
var _cp = require('./src/cp');
exports.cp = common.wrap('cp', _cp);
//@
//@ ### rm([options ,] file [, file ...])
//@ ### rm([options ,] file_array)
//@ Available options:
//@
//@ + `-f`: force
//@ + `-r, -R`: recursive
//@
//@ Examples:
//@
//@ ```javascript
//@ rm('-rf', '/tmp/*');
//@ rm('some_file.txt', 'another_file.txt');
//@ rm(['some_file.txt', 'another_file.txt']); // same as above
//@ ```
//@
//@ Removes files. The wildcard `*` is accepted.
//@include ./src/rm
var _rm = require('./src/rm');
exports.rm = common.wrap('rm', _rm);
//@
//@ ### mv(source [, source ...], dest')
//@ ### mv(source_array, dest')
//@ Available options:
//@
//@ + `f`: force
//@
//@ Examples:
//@
//@ ```javascript
//@ mv('-f', 'file', 'dir/');
//@ mv('file1', 'file2', 'dir/');
//@ mv(['file1', 'file2'], 'dir/'); // same as above
//@ ```
//@
//@ Moves files. The wildcard `*` is accepted.
//@include ./src/mv
var _mv = require('./src/mv');
exports.mv = common.wrap('mv', _mv);
//@
//@ ### mkdir([options ,] dir [, dir ...])
//@ ### mkdir([options ,] dir_array)
//@ Available options:
//@
//@ + `p`: full path (will create intermediate dirs if necessary)
//@
//@ Examples:
//@
//@ ```javascript
//@ mkdir('-p', '/tmp/a/b/c/d', '/tmp/e/f/g');
//@ mkdir('-p', ['/tmp/a/b/c/d', '/tmp/e/f/g']); // same as above
//@ ```
//@
//@ Creates directories.
//@include ./src/mkdir
var _mkdir = require('./src/mkdir');
exports.mkdir = common.wrap('mkdir', _mkdir);
//@
//@ ### test(expression)
//@ Available expression primaries:
//@
//@ + `'-b', 'path'`: true if path is a block device
//@ + `'-c', 'path'`: true if path is a character device
//@ + `'-d', 'path'`: true if path is a directory
//@ + `'-e', 'path'`: true if path exists
//@ + `'-f', 'path'`: true if path is a regular file
//@ + `'-L', 'path'`: true if path is a symboilc link
//@ + `'-p', 'path'`: true if path is a pipe (FIFO)
//@ + `'-S', 'path'`: true if path is a socket
//@
//@ Examples:
//@
//@ ```javascript
//@ if (test('-d', path)) { /* do something with dir */ };
//@ if (!test('-f', path)) continue; // skip if it's a regular file
//@ ```
//@
//@ Evaluates expression using the available primaries and returns corresponding value.
//@include ./src/test
var _test = require('./src/test');
exports.test = common.wrap('test', _test);
//@
//@ ### cat(file [, file ...])
//@ ### cat(file_array)
//@
//@ Examples:
//@
//@ ```javascript
//@ var str = cat('file*.txt');
//@ var str = cat('file1', 'file2');
//@ var str = cat(['file1', 'file2']); // same as above
//@ ```
//@
//@ Returns a string containing the given file, or a concatenated string
//@ containing the files if more than one file is given (a new line character is
//@ introduced between each file). Wildcard `*` accepted.
//@include ./src/cat
var _cat = require('./src/cat');
exports.cat = common.wrap('cat', _cat);
//@
//@ ### 'string'.to(file)
//@
//@ Examples:
//@
//@ ```javascript
//@ cat('input.txt').to('output.txt');
//@ ```
//@
//@ Analogous to the redirection operator `>` in Unix, but works with JavaScript strings (such as
//@ those returned by `cat`, `grep`, etc). _Like Unix redirections, `to()` will overwrite any existing file!_
//@include ./src/to
var _to = require('./src/to');
String.prototype.to = common.wrap('to', _to);
//@
//@ ### sed([options ,] search_regex, replace_str, file)
//@ Available options:
//@
//@ + `-i`: Replace contents of 'file' in-place. _Note that no backups will be created!_
//@
//@ Examples:
//@
//@ ```javascript
//@ sed('-i', 'PROGRAM_VERSION', 'v0.1.3', 'source.js');
//@ sed(/.*DELETE_THIS_LINE.*\n/, '', 'source.js');
//@ ```
//@
//@ Reads an input string from `file` and performs a JavaScript `replace()` on the input
//@ using the given search regex and replacement string. Returns the new string after replacement.
//@include ./src/sed
var _sed = require('./src/sed');
exports.sed = common.wrap('sed', _sed);
//@
//@ ### grep([options ,] regex_filter, file [, file ...])
//@ ### grep([options ,] regex_filter, file_array)
//@ Available options:
//@
//@ + `-v`: Inverse the sense of the regex and print the lines not matching the criteria.
//@
//@ Examples:
//@
//@ ```javascript
//@ grep('-v', 'GLOBAL_VARIABLE', '*.js');
//@ grep('GLOBAL_VARIABLE', '*.js');
//@ ```
//@
//@ Reads input string from given files and returns a string containing all lines of the
//@ file that match the given `regex_filter`. Wildcard `*` accepted.
//@include ./src/grep
var _grep = require('./src/grep');
exports.grep = common.wrap('grep', _grep);
//@
//@ ### which(command)
//@
//@ Examples:
//@
//@ ```javascript
//@ var nodeExec = which('node');
//@ ```
//@
//@ Searches for `command` in the system's PATH. On Windows looks for `.exe`, `.cmd`, and `.bat` extensions.
//@ Returns string containing the absolute path to the command.
//@include ./src/which
var _which = require('./src/which');
exports.which = common.wrap('which', _which);
//@
//@ ### echo(string [,string ...])
//@
//@ Examples:
//@
//@ ```javascript
//@ echo('hello world');
//@ var str = echo('hello world');
//@ ```
//@
//@ Prints string to stdout, and returns string with additional utility methods
//@ like `.to()`.
//@include ./src/echo
var _echo = require('./src/echo');
exports.echo = _echo; // don't common.wrap() as it could parse '-options'
//@
//@ ### dirs([options | '+N' | '-N'])
//@
//@ Available options:
//@
//@ + `-c`: Clears the directory stack by deleting all of the elements.
//@
//@ Arguments:
//@
//@ + `+N`: Displays the Nth directory (counting from the left of the list printed by dirs when invoked without options), starting with zero.
//@ + `-N`: Displays the Nth directory (counting from the right of the list printed by dirs when invoked without options), starting with zero.
//@
//@ Display the list of currently remembered directories. Returns an array of paths in the stack, or a single path if +N or -N was specified.
//@
//@ See also: pushd, popd
//@include ./src/dirs
var _dirs = require('./src/dirs').dirs;
exports.dirs = common.wrap("dirs", _dirs);
//@
//@ ### pushd([options,] [dir | '-N' | '+N'])
//@
//@ Available options:
//@
//@ + `-n`: Suppresses the normal change of directory when adding directories to the stack, so that only the stack is manipulated.
//@
//@ Arguments:
//@
//@ + `dir`: Makes the current working directory be the top of the stack, and then executes the equivalent of `cd dir`.
//@ + `+N`: Brings the Nth directory (counting from the left of the list printed by dirs, starting with zero) to the top of the list by rotating the stack.
//@ + `-N`: Brings the Nth directory (counting from the right of the list printed by dirs, starting with zero) to the top of the list by rotating the stack.
//@
//@ Examples:
//@
//@ ```javascript
//@ // process.cwd() === '/usr'
//@ pushd('/etc'); // Returns /etc /usr
//@ pushd('+1'); // Returns /usr /etc
//@ ```
//@
//@ Save the current directory on the top of the directory stack and then cd to `dir`. With no arguments, pushd exchanges the top two directories. Returns an array of paths in the stack.
var _pushd = require('./src/dirs').pushd;
exports.pushd = common.wrap('pushd', _pushd);
//@
//@ ### popd([options,] ['-N' | '+N'])
//@
//@ Available options:
//@
//@ + `-n`: Suppresses the normal change of directory when removing directories from the stack, so that only the stack is manipulated.
//@
//@ Arguments:
//@
//@ + `+N`: Removes the Nth directory (counting from the left of the list printed by dirs), starting with zero.
//@ + `-N`: Removes the Nth directory (counting from the right of the list printed by dirs), starting with zero.
//@
//@ Examples:
//@
//@ ```javascript
//@ echo(process.cwd()); // '/usr'
//@ pushd('/etc'); // '/etc /usr'
//@ echo(process.cwd()); // '/etc'
//@ popd(); // '/usr'
//@ echo(process.cwd()); // '/usr'
//@ ```
//@
//@ When no arguments are given, popd removes the top directory from the stack and performs a cd to the new top directory. The elements are numbered from 0 starting at the first directory listed with dirs; i.e., popd is equivalent to popd +0. Returns an array of paths in the stack.
var _popd = require('./src/dirs').popd;
exports.popd = common.wrap("popd", _popd);
@ -351,72 +95,28 @@ exports.exit = process.exit;
//@ Object containing environment variables (both getter and setter). Shortcut to process.env.
exports.env = process.env;
//@
//@ ### exec(command [, options] [, callback])
//@ Available options (all `false` by default):
//@
//@ + `async`: Asynchronous execution. Defaults to true if a callback is provided.
//@ + `silent`: Do not echo program output to console.
//@
//@ Examples:
//@
//@ ```javascript
//@ var version = exec('node --version', {silent:true}).output;
//@
//@ var child = exec('some_long_running_process', {async:true});
//@ child.stdout.on('data', function(data) {
//@ /* ... do something with data ... */
//@ });
//@
//@ exec('some_long_running_process', function(code, output) {
//@ console.log('Exit code:', code);
//@ console.log('Program output:', output);
//@ });
//@ ```
//@
//@ Executes the given `command` _synchronously_, unless otherwise specified.
//@ When in synchronous mode returns the object `{ code:..., output:... }`, containing the program's
//@ `output` (stdout + stderr) and its exit `code`. Otherwise returns the child process object, and
//@ the `callback` gets the arguments `(code, output)`.
//@
//@ **Note:** For long-lived processes, it's best to run `exec()` asynchronously as
//@ the current synchronous implementation uses a lot of CPU. This should be getting
//@ fixed soon.
//@include ./src/exec
var _exec = require('./src/exec');
exports.exec = common.wrap('exec', _exec, {notUnix:true});
//@
//@ ### chmod(octal_mode || octal_string, file)
//@ ### chmod(symbolic_mode, file)
//@
//@ Available options:
//@
//@ + `-v`: output a diagnostic for every file processed//@
//@ + `-c`: like verbose but report only when a change is made//@
//@ + `-R`: change files and directories recursively//@
//@
//@ Examples:
//@
//@ ```javascript
//@ chmod(755, '/Users/brandon');
//@ chmod('755', '/Users/brandon'); // same as above
//@ chmod('u+x', '/Users/brandon');
//@ ```
//@
//@ Alters the permissions of a file or directory by either specifying the
//@ absolute permissions in octal form or expressing the changes in symbols.
//@ This command tries to mimic the POSIX behavior as much as possible.
//@ Notable exceptions:
//@
//@ + In symbolic modes, 'a-r' and '-r' are identical. No consideration is
//@ given to the umask.
//@ + There is no "quiet" option since default behavior is to run silent.
//@include ./src/chmod
var _chmod = require('./src/chmod');
exports.chmod = common.wrap('chmod', _chmod);
//@
//@ ## Non-Unix commands
//@
//@include ./src/tempdir
var _tempDir = require('./src/tempdir');
exports.tempdir = common.wrap('tempdir', _tempDir);
//@include ./src/error
var _error = require('./src/error');
exports.error = _error;
@ -451,26 +151,3 @@ exports.config = common.config;
//@ ```
//@
//@ If `true` the script will die on errors. Default is `false`.
//@
//@ ## Non-Unix commands
//@
//@
//@ ### tempdir()
//@ Searches and returns string containing a writeable, platform-dependent temporary directory.
//@ Follows Python's [tempfile algorithm](http://docs.python.org/library/tempfile.html#tempfile.tempdir).
var _tempDir = require('./src/tempdir');
exports.tempdir = common.wrap('tempdir', _tempDir);
//@
//@ ### error()
//@ Tests if error occurred in the last command. Returns `null` if no error occurred,
//@ otherwise returns string explaining the error
var _error = require('./src/error');
exports.error = _error;

15
src/cat.js
View File

@ -1,6 +1,21 @@
var common = require('./common');
var fs = require('fs');
//@
//@ ### cat(file [, file ...])
//@ ### cat(file_array)
//@
//@ Examples:
//@
//@ ```javascript
//@ var str = cat('file*.txt');
//@ var str = cat('file1', 'file2');
//@ var str = cat(['file1', 'file2']); // same as above
//@ ```
//@
//@ Returns a string containing the given file, or a concatenated string
//@ containing the files if more than one file is given (a new line character is
//@ introduced between each file). Wildcard `*` accepted.
function _cat(options, files) {
var cat = '';

3
src/cd.js
View File

@ -1,6 +1,9 @@
var fs = require('fs');
var common = require('./common');
//@
//@ ### cd('dir')
//@ Changes to directory `dir` for the duration of the script
function _cd(options, dir) {
if (!dir)
common.error('directory not specified');

26
src/chmod.js
View File

@ -30,6 +30,32 @@ var PERMS = (function (base) {
READ : 4
});
//@
//@ ### chmod(octal_mode || octal_string, file)
//@ ### chmod(symbolic_mode, file)
//@
//@ Available options:
//@
//@ + `-v`: output a diagnostic for every file processed//@
//@ + `-c`: like verbose but report only when a change is made//@
//@ + `-R`: change files and directories recursively//@
//@
//@ Examples:
//@
//@ ```javascript
//@ chmod(755, '/Users/brandon');
//@ chmod('755', '/Users/brandon'); // same as above
//@ chmod('u+x', '/Users/brandon');
//@ ```
//@
//@ Alters the permissions of a file or directory by either specifying the
//@ absolute permissions in octal form or expressing the changes in symbols.
//@ This command tries to mimic the POSIX behavior as much as possible.
//@ Notable exceptions:
//@
//@ + In symbolic modes, 'a-r' and '-r' are identical. No consideration is
//@ given to the umask.
//@ + There is no "quiet" option since default behavior is to run silent.
function _chmod(options, mode, filePattern) {
if (!filePattern) {
if (options.length > 0 && options.charAt(0) === '-') {

17
src/cp.js
View File

@ -82,6 +82,23 @@ function cpdirSyncRecursive(sourceDir, destDir, opts) {
} // cpdirSyncRecursive
//@
//@ ### cp([options ,] source [,source ...], dest)
//@ ### cp([options ,] source_array, dest)
//@ Available options:
//@
//@ + `-f`: force
//@ + `-r, -R`: recursive
//@
//@ Examples:
//@
//@ ```javascript
//@ cp('file1', 'dir1');
//@ cp('-Rf', '/tmp/*', '/usr/local/*', '/home/tmp');
//@ cp('-Rf', ['/tmp/*', '/usr/local/*'], '/home/tmp'); // same as above
//@ ```
//@
//@ Copies files. The wildcard `*` is accepted.
function _cp(options, sources, dest) {
options = common.parseOptions(options, {
'f': 'force',

60
src/dirs.js
View File

@ -25,6 +25,28 @@ function _actualDirStack() {
return [process.cwd()].concat(_dirStack);
}
//@
//@ ### pushd([options,] [dir | '-N' | '+N'])
//@
//@ Available options:
//@
//@ + `-n`: Suppresses the normal change of directory when adding directories to the stack, so that only the stack is manipulated.
//@
//@ Arguments:
//@
//@ + `dir`: Makes the current working directory be the top of the stack, and then executes the equivalent of `cd dir`.
//@ + `+N`: Brings the Nth directory (counting from the left of the list printed by dirs, starting with zero) to the top of the list by rotating the stack.
//@ + `-N`: Brings the Nth directory (counting from the right of the list printed by dirs, starting with zero) to the top of the list by rotating the stack.
//@
//@ Examples:
//@
//@ ```javascript
//@ // process.cwd() === '/usr'
//@ pushd('/etc'); // Returns /etc /usr
//@ pushd('+1'); // Returns /usr /etc
//@ ```
//@
//@ Save the current directory on the top of the directory stack and then cd to `dir`. With no arguments, pushd exchanges the top two directories. Returns an array of paths in the stack.
function _pushd(options, dir) {
if (_isStackIndex(options)) {
dir = options;
@ -68,6 +90,29 @@ function _pushd(options, dir) {
}
exports.pushd = _pushd;
//@
//@ ### popd([options,] ['-N' | '+N'])
//@
//@ Available options:
//@
//@ + `-n`: Suppresses the normal change of directory when removing directories from the stack, so that only the stack is manipulated.
//@
//@ Arguments:
//@
//@ + `+N`: Removes the Nth directory (counting from the left of the list printed by dirs), starting with zero.
//@ + `-N`: Removes the Nth directory (counting from the right of the list printed by dirs), starting with zero.
//@
//@ Examples:
//@
//@ ```javascript
//@ echo(process.cwd()); // '/usr'
//@ pushd('/etc'); // '/etc /usr'
//@ echo(process.cwd()); // '/etc'
//@ popd(); // '/usr'
//@ echo(process.cwd()); // '/usr'
//@ ```
//@
//@ When no arguments are given, popd removes the top directory from the stack and performs a cd to the new top directory. The elements are numbered from 0 starting at the first directory listed with dirs; i.e., popd is equivalent to popd +0. Returns an array of paths in the stack.
function _popd(options, index) {
if (_isStackIndex(options)) {
index = options;
@ -96,6 +141,21 @@ function _popd(options, index) {
}
exports.popd = _popd;
//@
//@ ### dirs([options | '+N' | '-N'])
//@
//@ Available options:
//@
//@ + `-c`: Clears the directory stack by deleting all of the elements.
//@
//@ Arguments:
//@
//@ + `+N`: Displays the Nth directory (counting from the left of the list printed by dirs when invoked without options), starting with zero.
//@ + `-N`: Displays the Nth directory (counting from the right of the list printed by dirs when invoked without options), starting with zero.
//@
//@ Display the list of currently remembered directories. Returns an array of paths in the stack, or a single path if +N or -N was specified.
//@
//@ See also: pushd, popd
function _dirs(options, index) {
if (_isStackIndex(options)) {
index = options;

12
src/echo.js
View File

@ -1,5 +1,17 @@
var common = require('./common');
//@
//@ ### echo(string [,string ...])
//@
//@ Examples:
//@
//@ ```javascript
//@ echo('hello world');
//@ var str = echo('hello world');
//@ ```
//@
//@ Prints string to stdout, and returns string with additional utility methods
//@ like `.to()`.
function _echo() {
var messages = [].slice.call(arguments, 0);
console.log.apply(this, messages);

6
src/error.js
View File

@ -1,6 +1,10 @@
var common = require('./common');
//@
//@ ### error()
//@ Tests if error occurred in the last command. Returns `null` if no error occurred,
//@ otherwise returns string explaining the error
function error() {
return common.state.error;
};
module.exports = error;
module.exports = error;

31
src/exec.js
View File

@ -118,6 +118,37 @@ function execAsync(cmd, opts, callback) {
return c;
}
//@
//@ ### exec(command [, options] [, callback])
//@ Available options (all `false` by default):
//@
//@ + `async`: Asynchronous execution. Defaults to true if a callback is provided.
//@ + `silent`: Do not echo program output to console.
//@
//@ Examples:
//@
//@ ```javascript
//@ var version = exec('node --version', {silent:true}).output;
//@
//@ var child = exec('some_long_running_process', {async:true});
//@ child.stdout.on('data', function(data) {
//@ /* ... do something with data ... */
//@ });
//@
//@ exec('some_long_running_process', function(code, output) {
//@ console.log('Exit code:', code);
//@ console.log('Program output:', output);
//@ });
//@ ```
//@
//@ Executes the given `command` _synchronously_, unless otherwise specified.
//@ When in synchronous mode returns the object `{ code:..., output:... }`, containing the program's
//@ `output` (stdout + stderr) and its exit `code`. Otherwise returns the child process object, and
//@ the `callback` gets the arguments `(code, output)`.
//@
//@ **Note:** For long-lived processes, it's best to run `exec()` asynchronously as
//@ the current synchronous implementation uses a lot of CPU. This should be getting
//@ fixed soon.
function _exec(command, options, callback) {
if (!command)
common.error('must specify command');

15
src/find.js
View File

@ -2,6 +2,21 @@ var fs = require('fs');
var common = require('./common');
var _ls = require('./ls');
//@
//@ ### find(path [,path ...])
//@ ### find(path_array)
//@ Examples:
//@
//@ ```javascript
//@ find('src', 'lib');
//@ find(['src', 'lib']); // same as above
//@ find('.').filter(function(file) { return file.match(/\.js$/); });
//@ ```
//@
//@ Returns array of all files (however deep) in the given paths.
//@
//@ The main difference from `ls('-R', path)` is that the resulting file names
//@ include the base directories, e.g. `lib/resources/file1` instead of just `file1`.
function _find(options, paths) {
if (!paths)
common.error('no path specified');

16
src/grep.js
View File

@ -1,6 +1,22 @@
var common = require('./common');
var fs = require('fs');
//@
//@ ### grep([options ,] regex_filter, file [, file ...])
//@ ### grep([options ,] regex_filter, file_array)
//@ Available options:
//@
//@ + `-v`: Inverse the sense of the regex and print the lines not matching the criteria.
//@
//@ Examples:
//@
//@ ```javascript
//@ grep('-v', 'GLOBAL_VARIABLE', '*.js');
//@ grep('GLOBAL_VARIABLE', '*.js');
//@ ```
//@
//@ Reads input string from given files and returns a string containing all lines of the
//@ file that match the given `regex_filter`. Wildcard `*` accepted.
function _grep(options, regex, files) {
options = common.parseOptions(options, {
'v': 'inverse'

17
src/ls.js
View File

@ -4,6 +4,23 @@ var common = require('./common');
var _cd = require('./cd');
var _pwd = require('./pwd');
//@
//@ ### ls([options ,] path [,path ...])
//@ ### ls([options ,] path_array)
//@ Available options:
//@
//@ + `-R`: recursive
//@ + `-A`: all files (include files beginning with `.`, except for `.` and `..`)
//@
//@ Examples:
//@
//@ ```javascript
//@ ls('projs/*.js');
//@ ls('-R', '/users/me', '/tmp');
//@ ls('-R', ['/users/me', '/tmp']); // same as above
//@ ```
//@
//@ Returns array of files in the given path, or in current directory if no path provided.
function _ls(options, paths) {
options = common.parseOptions(options, {
'R': 'recursive',

15
src/mkdir.js
View File

@ -19,6 +19,21 @@ function mkdirSyncRecursive(dir) {
fs.mkdirSync(dir, parseInt('0777', 8));
}
//@
//@ ### mkdir([options ,] dir [, dir ...])
//@ ### mkdir([options ,] dir_array)
//@ Available options:
//@
//@ + `p`: full path (will create intermediate dirs if necessary)
//@
//@ Examples:
//@
//@ ```javascript
//@ mkdir('-p', '/tmp/a/b/c/d', '/tmp/e/f/g');
//@ mkdir('-p', ['/tmp/a/b/c/d', '/tmp/e/f/g']); // same as above
//@ ```
//@
//@ Creates directories.
function _mkdir(options, dirs) {
options = common.parseOptions(options, {
'p': 'fullpath'

16
src/mv.js
View File

@ -2,6 +2,22 @@ var fs = require('fs');
var path = require('path');
var common = require('./common');
//@
//@ ### mv(source [, source ...], dest')
//@ ### mv(source_array, dest')
//@ Available options:
//@
//@ + `f`: force
//@
//@ Examples:
//@
//@ ```javascript
//@ mv('-f', 'file', 'dir/');
//@ mv('file1', 'file2', 'dir/');
//@ mv(['file1', 'file2'], 'dir/'); // same as above
//@ ```
//@
//@ Moves files. The wildcard `*` is accepted.
function _mv(options, sources, dest) {
options = common.parseOptions(options, {
'f': 'force'

3
src/pwd.js
View File

@ -1,6 +1,9 @@
var path = require('path');
var common = require('./common');
//@
//@ ### pwd()
//@ Returns the current directory.
function _pwd(options) {
var pwd = path.resolve(process.cwd());
return common.ShellString(pwd);

17
src/rm.js
View File

@ -70,6 +70,23 @@ function isWriteable(file) {
return writePermission;
}
//@
//@ ### rm([options ,] file [, file ...])
//@ ### rm([options ,] file_array)
//@ Available options:
//@
//@ + `-f`: force
//@ + `-r, -R`: recursive
//@
//@ Examples:
//@
//@ ```javascript
//@ rm('-rf', '/tmp/*');
//@ rm('some_file.txt', 'another_file.txt');
//@ rm(['some_file.txt', 'another_file.txt']); // same as above
//@ ```
//@
//@ Removes files. The wildcard `*` is accepted.
function _rm(options, files) {
options = common.parseOptions(options, {
'f': 'force',

15
src/sed → src/sed.js
View File

@ -1,6 +1,21 @@
var common = require('./common');
var fs = require('fs');
//@
//@ ### sed([options ,] search_regex, replace_str, file)
//@ Available options:
//@
//@ + `-i`: Replace contents of 'file' in-place. _Note that no backups will be created!_
//@
//@ Examples:
//@
//@ ```javascript
//@ sed('-i', 'PROGRAM_VERSION', 'v0.1.3', 'source.js');
//@ sed(/.*DELETE_THIS_LINE.*\n/, '', 'source.js');
//@ ```
//@
//@ Reads an input string from `file` and performs a JavaScript `replace()` on the input
//@ using the given search regex and replacement string. Returns the new string after replacement.
function _sed(options, regex, replacement, file) {
options = common.parseOptions(options, {
'i': 'inplace'

7
src/tempdir.js
View File

@ -21,9 +21,10 @@ function writeableDir(dir) {
}
// Cross-platform method for getting an available temporary directory.
// Follows the algorithm of Python's tempfile.tempdir
// http://docs.python.org/library/tempfile.html#tempfile.tempdir
//@
//@ ### tempdir()
//@ Searches and returns string containing a writeable, platform-dependent temporary directory.
//@ Follows Python's [tempfile algorithm](http://docs.python.org/library/tempfile.html#tempfile.tempdir).
function _tempDir() {
var state = common.state;
if (state.tempDir)

21
src/test.js
View File

@ -1,6 +1,27 @@
var common = require('./common');
var fs = require('fs');
//@
//@ ### test(expression)
//@ Available expression primaries:
//@
//@ + `'-b', 'path'`: true if path is a block device
//@ + `'-c', 'path'`: true if path is a character device
//@ + `'-d', 'path'`: true if path is a directory
//@ + `'-e', 'path'`: true if path exists
//@ + `'-f', 'path'`: true if path is a regular file
//@ + `'-L', 'path'`: true if path is a symboilc link
//@ + `'-p', 'path'`: true if path is a pipe (FIFO)
//@ + `'-S', 'path'`: true if path is a socket
//@
//@ Examples:
//@
//@ ```javascript
//@ if (test('-d', path)) { /* do something with dir */ };
//@ if (!test('-f', path)) continue; // skip if it's a regular file
//@ ```
//@
//@ Evaluates expression using the available primaries and returns corresponding value.
function _test(options, path) {
if (!path)
common.error('no path given');

11
src/to.js
View File

@ -2,6 +2,17 @@ var common = require('./common');
var fs = require('fs');
var path = require('path');
//@
//@ ### 'string'.to(file)
//@
//@ Examples:
//@
//@ ```javascript
//@ cat('input.txt').to('output.txt');
//@ ```
//@
//@ Analogous to the redirection operator `>` in Unix, but works with JavaScript strings (such as
//@ those returned by `cat`, `grep`, etc). _Like Unix redirections, `to()` will overwrite any existing file!_
function _to(options, file) {
if (!file)
common.error('wrong arguments');

11
src/which.js
View File

@ -13,6 +13,17 @@ function splitPath(p) {
return p.split(':');
}
//@
//@ ### which(command)
//@
//@ Examples:
//@
//@ ```javascript
//@ var nodeExec = which('node');
//@ ```
//@
//@ Searches for `command` in the system's PATH. On Windows looks for `.exe`, `.cmd`, and `.bat` extensions.
//@ Returns string containing the absolute path to the command.
function _which(options, cmd) {
if (!cmd)
common.error('must specify command');