Skip to content
This repository

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

file 249 lines (176 sloc) 5.552 kb
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249
<?php
/**
*
* Command line application
*
*/

require_once 'CssCrush.php';


// Exit status constants
define( 'STATUS_OK', 0 );
define( 'STATUS_ERROR', 1 );

// Open stream handles
$stdin = fopen( 'php://stdin', 'r' );
$stdout = fopen( 'php://stdout', 'w' );
$stderr = fopen( 'php://stderr', 'w' );

// Get stdin contents
if ( ! stream_set_blocking( $stdin, false ) ) {

stderr( 'Failed to disable stdin blocking' );
exit( STATUS_ERROR );
}
$stdin_contents = stream_get_contents( $stdin );
fclose( $stdin );


##################################################################
## Helpers

function stderr ( $lines, $closing_newline = true ) {
global $stderr;
fwrite( $stderr,
implode( PHP_EOL, (array) $lines ) . ( $closing_newline ? PHP_EOL : '' )
);
}

function stdout ( $lines, $closing_newline = true ) {
global $stdout;
fwrite( $stdout,
implode( PHP_EOL, (array) $lines ) . ( $closing_newline ? PHP_EOL : '' )
);
}


##################################################################
## Version detection

$version = PHP_MAJOR_VERSION . '.' . PHP_MINOR_VERSION;
$required_version = 5.3;

if ( $version < $required_version ) {

stderr( array(
"PHP version $required_version or higher is required to use this tool.",
"You are currently running PHP version $version" )
);
exit( STATUS_ERROR );
}


##################################################################
## Options

$short_opts = array(
"f::", // Input file. Defaults to sdtin
"o::", // Output file. Defaults to stdout
"p", // Pretty formatting
'b', // Output boilerplate
'h', // Display help
);

$long_opts = array(
'file::', // Input file. Defaults to sdtin
'output::', // Output file. Defaults to stdout
'pretty', // Pretty formatting
'boilerplate', // Output boilerplate
'help', // Display help
'version', // Display version
'vendor-target:', // Vendor target
'variables:', // Map of variable names in an http query string format
);

$opts = getopt( implode( $short_opts ), $long_opts );

$input_file = @( $opts['f'] ?: $opts['file'] );
$output_file = @( $opts['o'] ?: $opts['output'] );
$variables = @$opts['variables'];
$vendor_target = @$opts['vendor-target'];
$boilerplate = @( isset( $opts['b'] ) ?: isset( $opts['boilerplate'] ) );
$pretty = @( isset( $opts['p'] ) ?: isset( $opts['pretty'] ) );
$help_flag = @( isset( $opts['h'] ) ?: isset( $opts['help'] ) );
$version_flag = @isset( $opts['version'] );


##################################################################
## Help page

$command = 'csscrush';

$help = <<<TPL

Usage:
    csscrush [-f|--file] [-o|--output-file] [-p|--pretty] [-b|--boilerplate]
             [-h|--help] [--variables] [--vendor-target] [--version]

Options:
    -f, --file:
        The input file, if omitted takes input from stdin

    -o, --output:
        The output file, if omitted prints to stdout

    -p, --pretty:
        Formatted, unminified output

    -b, --boilerplate:
        Whether or not to output a boilerplate

    -h, --help:
        Display this help mesasge

    --variables:
        Map of variable names in an http query string format

    --vendor-target:
        Set to 'all' for all vendor prefixes (default)
        Set to 'none' for no vendor prefixes
        Set to a specific vendor prefix

    --version:
        Version number

Examples:
    $command -f=styles.css --pretty --vendor-target=webkit

    # Piping on unix based terminals
    cat 'styles.css' | $command --boilerplate

TPL;



if ( $version_flag ) {

stdout( 'CSS Crush ' . csscrush::$config->version );
exit( STATUS_OK );
}

if ( $help_flag ) {

stdout( $help );
exit( STATUS_OK );
}


##################################################################
## Input

$input = null;

if ( $input_file ) {

if ( ! file_exists( $input_file ) ) {

stdout( 'Input file not found' . PHP_EOL );
exit( STATUS_ERROR );
}
$input = file_get_contents( $input_file );
}
elseif ( $stdin_contents ) {

$input = $stdin_contents;
}
else {

// No input, just output help screen
stdout( $help );
exit( STATUS_OK );
}


##################################################################
## Processing

$process_opts = array();
$process_opts[ 'boilerplate' ] = $boilerplate ? true : false;
$process_opts[ 'debug' ] = $pretty ? true : false;
$process_opts[ 'rewrite_import_urls' ] = true;

if ( $vendor_target ) {

$process_opts[ 'vendor_target' ] = $vendor_target;
}
if ( $variables ) {

parse_str( $variables, $in_vars );
$process_opts[ 'vars' ] = $in_vars;
}

$import_context = $input_file ? dirname( realpath( $input_file ) ) : null;

// If there is an import context set it to the document root
if ( $import_context ) {

$old_doc_root = csscrush::$config->docRoot;
csscrush::$config->docRoot = $import_context;
$process_opts[ 'import_context' ] = $import_context;
}

// Process the stream
$output = csscrush::string( $input, $process_opts );

// Reset the document root after processing
if ( $import_context ) {

csscrush::$config->docRoot = $old_doc_root;
}


##################################################################
## Output

if ( $output_file ) {

if ( ! @file_put_contents( $output_file, $output ) ) {

$message[] = "Could not write to path '$output_file'";

if ( strpos( $output_file, '~' ) === 0 ) {

$message[] = 'Tilde expansion does not work here';
}

stderr( $message );
exit( STATUS_ERROR );
}
}
else {

if ( csscrush::$process->errors ) {
stderr( csscrush::$process->errors );
}

stdout( $output );
exit( STATUS_OK );
}
Something went wrong with that request. Please try again.