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Diffstat (limited to 'cordova/node_modules/shelljs/src/grep.js')
| -rwxr-xr-x | cordova/node_modules/shelljs/src/grep.js | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/cordova/node_modules/shelljs/src/grep.js b/cordova/node_modules/shelljs/src/grep.js new file mode 100755 index 0000000..00c7d6a --- /dev/null +++ b/cordova/node_modules/shelljs/src/grep.js @@ -0,0 +1,52 @@ +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' + }); + + if (!files) + common.error('no paths given'); + + if (typeof files === 'string') + files = [].slice.call(arguments, 2); + // if it's array leave it as it is + + files = common.expand(files); + + var grep = ''; + files.forEach(function(file) { + if (!fs.existsSync(file)) { + common.error('no such file or directory: ' + file, true); + return; + } + + var contents = fs.readFileSync(file, 'utf8'), + lines = contents.split(/\r*\n/); + lines.forEach(function(line) { + var matched = line.match(regex); + if ((options.inverse && !matched) || (!options.inverse && matched)) + grep += line + '\n'; + }); + }); + + return common.ShellString(grep); +} +module.exports = _grep; |
