1 files changed, 86 insertions, 0 deletions
diff --git a/node_modules/shelljs/src/sed.js b/node_modules/shelljs/src/sed.js
new file mode 100644
index 000000000..dfdc0a747
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+++ b/node_modules/shelljs/src/sed.js
@@ -0,0 +1,86 @@
+var common = require('./common');
+var fs = require('fs');
+
+common.register('sed', _sed, {
+  globStart: 3, // don't glob-expand regexes
+  canReceivePipe: true,
+  cmdOptions: {
+    'i': 'inplace',
+  },
+});
+
+//@
+//@ ### sed([options,] search_regex, replacement, file [, file ...])
+//@ ### sed([options,] search_regex, replacement, file_array)
+//@ 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 `files` and performs a JavaScript `replace()` on the input
+//@ using the given search regex and replacement string or function. Returns the new string after replacement.
+//@
+//@ Note:
+//@
+//@ Like unix `sed`, ShellJS `sed` supports capture groups. Capture groups are specified
+//@ using the `$n` syntax:
+//@
+//@ ```javascript
+//@ sed(/(\w+)\s(\w+)/, '$2, $1', 'file.txt');
+//@ ```
+function _sed(options, regex, replacement, files) {
+  // Check if this is coming from a pipe
+  var pipe = common.readFromPipe();
+
+  if (typeof replacement !== 'string' && typeof replacement !== 'function') {
+    if (typeof replacement === 'number') {
+      replacement = replacement.toString(); // fallback
+    } else {
+      common.error('invalid replacement string');
+    }
+  }
+
+  // Convert all search strings to RegExp
+  if (typeof regex === 'string') {
+    regex = RegExp(regex);
+  }
+
+  if (!files && !pipe) {
+    common.error('no files given');
+  }
+
+  files = [].slice.call(arguments, 3);
+
+  if (pipe) {
+    files.unshift('-');
+  }
+
+  var sed = [];
+  files.forEach(function (file) {
+    if (!fs.existsSync(file) && file !== '-') {
+      common.error('no such file or directory: ' + file, 2, { continue: true });
+      return;
+    }
+
+    var contents = file === '-' ? pipe : fs.readFileSync(file, 'utf8');
+    var lines = contents.split(/\r*\n/);
+    var result = lines.map(function (line) {
+      return line.replace(regex, replacement);
+    }).join('\n');
+
+    sed.push(result);
+
+    if (options.inplace) {
+      fs.writeFileSync(file, result, 'utf8');
+    }
+  });
+
+  return sed.join('\n');
+}
+module.exports = _sed;