mecano/lib/misc/diff.js

Common functions for system deployment.

// Generated by CoffeeScript 1.11.1
var diff, pad, string;

module.exports = function(oldStr, newStr, options) {
  var count_added, count_removed, i, j, k, len, len1, len2, line, lines, ls, padsize, text;
  if (oldStr == null) {
    oldStr = '';
  }
  if (newStr == null) {
    newStr = '';
  }
  lines = diff.diffLines(oldStr, newStr);
  text = [];
  count_added = count_removed = 0;
  padsize = Math.ceil(lines.length / 10);
  for (i = 0, len = lines.length; i < len; i++) {
    line = lines[i];
    if (line.value === null) {
      continue;
    }
    if (!line.added && !line.removed) {
      count_added++;
      count_removed++;
      continue;
    }
    ls = string.lines(line.value);
    if (line.added) {
      for (j = 0, len1 = ls.length; j < len1; j++) {
        line = ls[j];
        count_added++;
        text.push((pad(padsize, '' + count_added)) + " + " + line);
      }
    } else {
      for (k = 0, len2 = ls.length; k < len2; k++) {
        line = ls[k];
        count_removed++;
        text.push((pad(padsize, '' + count_removed)) + " - " + line);
      }
    }
  }
  return {
    raw: lines,
    text: text.map(function(t) {
      return t + "\n";
    }).join('')
  };
};

pad = require('pad');

diff = require('diff');

string = require('./string');