1/*istanbul ignore start*/ 2"use strict"; 3 4Object.defineProperty(exports, "__esModule", { 5 value: true 6}); 7exports.structuredPatch = structuredPatch; 8exports.formatPatch = formatPatch; 9exports.createTwoFilesPatch = createTwoFilesPatch; 10exports.createPatch = createPatch; 11 12/*istanbul ignore end*/ 13var 14/*istanbul ignore start*/ 15_line = require("../diff/line") 16/*istanbul ignore end*/ 17; 18 19/*istanbul ignore start*/ function _toConsumableArray(arr) { return _arrayWithoutHoles(arr) || _iterableToArray(arr) || _unsupportedIterableToArray(arr) || _nonIterableSpread(); } 20 21function _nonIterableSpread() { throw new TypeError("Invalid attempt to spread non-iterable instance.\nIn order to be iterable, non-array objects must have a [Symbol.iterator]() method."); } 22 23function _unsupportedIterableToArray(o, minLen) { if (!o) return; if (typeof o === "string") return _arrayLikeToArray(o, minLen); var n = Object.prototype.toString.call(o).slice(8, -1); if (n === "Object" && o.constructor) n = o.constructor.name; if (n === "Map" || n === "Set") return Array.from(o); if (n === "Arguments" || /^(?:Ui|I)nt(?:8|16|32)(?:Clamped)?Array$/.test(n)) return _arrayLikeToArray(o, minLen); } 24 25function _iterableToArray(iter) { if (typeof Symbol !== "undefined" && Symbol.iterator in Object(iter)) return Array.from(iter); } 26 27function _arrayWithoutHoles(arr) { if (Array.isArray(arr)) return _arrayLikeToArray(arr); } 28 29function _arrayLikeToArray(arr, len) { if (len == null || len > arr.length) len = arr.length; for (var i = 0, arr2 = new Array(len); i < len; i++) { arr2[i] = arr[i]; } return arr2; } 30 31/*istanbul ignore end*/ 32function structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) { 33 if (!options) { 34 options = {}; 35 } 36 37 if (typeof options.context === 'undefined') { 38 options.context = 4; 39 } 40 41 var diff = 42 /*istanbul ignore start*/ 43 (0, 44 /*istanbul ignore end*/ 45 46 /*istanbul ignore start*/ 47 _line 48 /*istanbul ignore end*/ 49 . 50 /*istanbul ignore start*/ 51 diffLines) 52 /*istanbul ignore end*/ 53 (oldStr, newStr, options); 54 55 if (!diff) { 56 return; 57 } 58 59 diff.push({ 60 value: '', 61 lines: [] 62 }); // Append an empty value to make cleanup easier 63 64 function contextLines(lines) { 65 return lines.map(function (entry) { 66 return ' ' + entry; 67 }); 68 } 69 70 var hunks = []; 71 var oldRangeStart = 0, 72 newRangeStart = 0, 73 curRange = [], 74 oldLine = 1, 75 newLine = 1; 76 77 /*istanbul ignore start*/ 78 var _loop = function _loop( 79 /*istanbul ignore end*/ 80 i) { 81 var current = diff[i], 82 lines = current.lines || current.value.replace(/\n$/, '').split('\n'); 83 current.lines = lines; 84 85 if (current.added || current.removed) { 86 /*istanbul ignore start*/ 87 var _curRange; 88 89 /*istanbul ignore end*/ 90 // If we have previous context, start with that 91 if (!oldRangeStart) { 92 var prev = diff[i - 1]; 93 oldRangeStart = oldLine; 94 newRangeStart = newLine; 95 96 if (prev) { 97 curRange = options.context > 0 ? contextLines(prev.lines.slice(-options.context)) : []; 98 oldRangeStart -= curRange.length; 99 newRangeStart -= curRange.length; 100 } 101 } // Output our changes 102 103 104 /*istanbul ignore start*/ 105 106 /*istanbul ignore end*/ 107 108 /*istanbul ignore start*/ 109 (_curRange = 110 /*istanbul ignore end*/ 111 curRange).push.apply( 112 /*istanbul ignore start*/ 113 _curRange 114 /*istanbul ignore end*/ 115 , 116 /*istanbul ignore start*/ 117 _toConsumableArray( 118 /*istanbul ignore end*/ 119 lines.map(function (entry) { 120 return (current.added ? '+' : '-') + entry; 121 }))); // Track the updated file position 122 123 124 if (current.added) { 125 newLine += lines.length; 126 } else { 127 oldLine += lines.length; 128 } 129 } else { 130 // Identical context lines. Track line changes 131 if (oldRangeStart) { 132 // Close out any changes that have been output (or join overlapping) 133 if (lines.length <= options.context * 2 && i < diff.length - 2) { 134 /*istanbul ignore start*/ 135 var _curRange2; 136 137 /*istanbul ignore end*/ 138 // Overlapping 139 140 /*istanbul ignore start*/ 141 142 /*istanbul ignore end*/ 143 144 /*istanbul ignore start*/ 145 (_curRange2 = 146 /*istanbul ignore end*/ 147 curRange).push.apply( 148 /*istanbul ignore start*/ 149 _curRange2 150 /*istanbul ignore end*/ 151 , 152 /*istanbul ignore start*/ 153 _toConsumableArray( 154 /*istanbul ignore end*/ 155 contextLines(lines))); 156 } else { 157 /*istanbul ignore start*/ 158 var _curRange3; 159 160 /*istanbul ignore end*/ 161 // end the range and output 162 var contextSize = Math.min(lines.length, options.context); 163 164 /*istanbul ignore start*/ 165 166 /*istanbul ignore end*/ 167 168 /*istanbul ignore start*/ 169 (_curRange3 = 170 /*istanbul ignore end*/ 171 curRange).push.apply( 172 /*istanbul ignore start*/ 173 _curRange3 174 /*istanbul ignore end*/ 175 , 176 /*istanbul ignore start*/ 177 _toConsumableArray( 178 /*istanbul ignore end*/ 179 contextLines(lines.slice(0, contextSize)))); 180 181 var hunk = { 182 oldStart: oldRangeStart, 183 oldLines: oldLine - oldRangeStart + contextSize, 184 newStart: newRangeStart, 185 newLines: newLine - newRangeStart + contextSize, 186 lines: curRange 187 }; 188 189 if (i >= diff.length - 2 && lines.length <= options.context) { 190 // EOF is inside this hunk 191 var oldEOFNewline = /\n$/.test(oldStr); 192 var newEOFNewline = /\n$/.test(newStr); 193 var noNlBeforeAdds = lines.length == 0 && curRange.length > hunk.oldLines; 194 195 if (!oldEOFNewline && noNlBeforeAdds && oldStr.length > 0) { 196 // special case: old has no eol and no trailing context; no-nl can end up before adds 197 // however, if the old file is empty, do not output the no-nl line 198 curRange.splice(hunk.oldLines, 0, '\\ No newline at end of file'); 199 } 200 201 if (!oldEOFNewline && !noNlBeforeAdds || !newEOFNewline) { 202 curRange.push('\\ No newline at end of file'); 203 } 204 } 205 206 hunks.push(hunk); 207 oldRangeStart = 0; 208 newRangeStart = 0; 209 curRange = []; 210 } 211 } 212 213 oldLine += lines.length; 214 newLine += lines.length; 215 } 216 }; 217 218 for (var i = 0; i < diff.length; i++) { 219 /*istanbul ignore start*/ 220 _loop( 221 /*istanbul ignore end*/ 222 i); 223 } 224 225 return { 226 oldFileName: oldFileName, 227 newFileName: newFileName, 228 oldHeader: oldHeader, 229 newHeader: newHeader, 230 hunks: hunks 231 }; 232} 233 234function formatPatch(diff) { 235 if (Array.isArray(diff)) { 236 return diff.map(formatPatch).join('\n'); 237 } 238 239 var ret = []; 240 241 if (diff.oldFileName == diff.newFileName) { 242 ret.push('Index: ' + diff.oldFileName); 243 } 244 245 ret.push('==================================================================='); 246 ret.push('--- ' + diff.oldFileName + (typeof diff.oldHeader === 'undefined' ? '' : '\t' + diff.oldHeader)); 247 ret.push('+++ ' + diff.newFileName + (typeof diff.newHeader === 'undefined' ? '' : '\t' + diff.newHeader)); 248 249 for (var i = 0; i < diff.hunks.length; i++) { 250 var hunk = diff.hunks[i]; // Unified Diff Format quirk: If the chunk size is 0, 251 // the first number is one lower than one would expect. 252 // https://www.artima.com/weblogs/viewpost.jsp?thread=164293 253 254 if (hunk.oldLines === 0) { 255 hunk.oldStart -= 1; 256 } 257 258 if (hunk.newLines === 0) { 259 hunk.newStart -= 1; 260 } 261 262 ret.push('@@ -' + hunk.oldStart + ',' + hunk.oldLines + ' +' + hunk.newStart + ',' + hunk.newLines + ' @@'); 263 ret.push.apply(ret, hunk.lines); 264 } 265 266 return ret.join('\n') + '\n'; 267} 268 269function createTwoFilesPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) { 270 return formatPatch(structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options)); 271} 272 273function createPatch(fileName, oldStr, newStr, oldHeader, newHeader, options) { 274 return createTwoFilesPatch(fileName, fileName, oldStr, newStr, oldHeader, newHeader, options); 275} 276//# 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{diffLines} from '../diff/line';\n\nexport function structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) {\n  if (!options) {\n    options = {};\n  }\n  if (typeof options.context === 'undefined') {\n    options.context = 4;\n  }\n\n  const diff = diffLines(oldStr, newStr, options);\n  if(!diff) {\n    return;\n  }\n\n  diff.push({value: '', lines: []}); // Append an empty value to make cleanup easier\n\n  function contextLines(lines) {\n    return lines.map(function(entry) { return ' ' + entry; });\n  }\n\n  let hunks = [];\n  let oldRangeStart = 0, newRangeStart = 0, curRange = [],\n      oldLine = 1, newLine = 1;\n  for (let i = 0; i < diff.length; i++) {\n    const current = diff[i],\n          lines = current.lines || current.value.replace(/\\n$/, '').split('\\n');\n    current.lines = lines;\n\n    if (current.added || current.removed) {\n      // If we have previous context, start with that\n      if (!oldRangeStart) {\n        const prev = diff[i - 1];\n        oldRangeStart = oldLine;\n        newRangeStart = newLine;\n\n        if (prev) {\n          curRange = options.context > 0 ? contextLines(prev.lines.slice(-options.context)) : [];\n          oldRangeStart -= curRange.length;\n          newRangeStart -= curRange.length;\n        }\n      }\n\n      // Output our changes\n      curRange.push(... lines.map(function(entry) {\n        return (current.added ? '+' : '-') + entry;\n      }));\n\n      // Track the updated file position\n      if (current.added) {\n        newLine += lines.length;\n      } else {\n        oldLine += lines.length;\n      }\n    } else {\n      // Identical context lines. Track line changes\n      if (oldRangeStart) {\n        // Close out any changes that have been output (or join overlapping)\n        if (lines.length <= options.context * 2 && i < diff.length - 2) {\n          // Overlapping\n          curRange.push(... contextLines(lines));\n        } else {\n          // end the range and output\n          let contextSize = Math.min(lines.length, options.context);\n          curRange.push(... contextLines(lines.slice(0, contextSize)));\n\n          let hunk = {\n            oldStart: oldRangeStart,\n            oldLines: (oldLine - oldRangeStart + contextSize),\n            newStart: newRangeStart,\n            newLines: (newLine - newRangeStart + contextSize),\n            lines: curRange\n          };\n          if (i >= diff.length - 2 && lines.length <= options.context) {\n            // EOF is inside this hunk\n            let oldEOFNewline = ((/\\n$/).test(oldStr));\n            let newEOFNewline = ((/\\n$/).test(newStr));\n            let noNlBeforeAdds = lines.length == 0 && curRange.length > hunk.oldLines;\n            if (!oldEOFNewline && noNlBeforeAdds && oldStr.length > 0) {\n              // special case: old has no eol and no trailing context; no-nl can end up before adds\n              // however, if the old file is empty, do not output the no-nl line\n              curRange.splice(hunk.oldLines, 0, '\\\\ No newline at end of file');\n            }\n            if ((!oldEOFNewline && !noNlBeforeAdds) || !newEOFNewline) {\n              curRange.push('\\\\ No newline at end of file');\n            }\n          }\n          hunks.push(hunk);\n\n          oldRangeStart = 0;\n          newRangeStart = 0;\n          curRange = [];\n        }\n      }\n      oldLine += lines.length;\n      newLine += lines.length;\n    }\n  }\n\n  return {\n    oldFileName: oldFileName, newFileName: newFileName,\n    oldHeader: oldHeader, newHeader: newHeader,\n    hunks: hunks\n  };\n}\n\nexport function formatPatch(diff) {\n  if (Array.isArray(diff)) {\n    return diff.map(formatPatch).join('\\n');\n  }\n\n  const ret = [];\n  if (diff.oldFileName == diff.newFileName) {\n    ret.push('Index: ' + diff.oldFileName);\n  }\n  ret.push('===================================================================');\n  ret.push('--- ' + diff.oldFileName + (typeof diff.oldHeader === 'undefined' ? '' : '\\t' + diff.oldHeader));\n  ret.push('+++ ' + diff.newFileName + (typeof diff.newHeader === 'undefined' ? '' : '\\t' + diff.newHeader));\n\n  for (let i = 0; i < diff.hunks.length; i++) {\n    const hunk = diff.hunks[i];\n    // Unified Diff Format quirk: If the chunk size is 0,\n    // the first number is one lower than one would expect.\n    // https://www.artima.com/weblogs/viewpost.jsp?thread=164293\n    if (hunk.oldLines === 0) {\n      hunk.oldStart -= 1;\n    }\n    if (hunk.newLines === 0) {\n      hunk.newStart -= 1;\n    }\n    ret.push(\n      '@@ -' + hunk.oldStart + ',' + hunk.oldLines\n      + ' +' + hunk.newStart + ',' + hunk.newLines\n      + ' @@'\n    );\n    ret.push.apply(ret, hunk.lines);\n  }\n\n  return ret.join('\\n') + '\\n';\n}\n\nexport function createTwoFilesPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) {\n  return formatPatch(structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options));\n}\n\nexport function createPatch(fileName, oldStr, newStr, oldHeader, newHeader, options) {\n  return createTwoFilesPatch(fileName, fileName, oldStr, newStr, oldHeader, newHeader, options);\n}\n"]} 277