parse.js #1

/*istanbul ignore start*/'use strict';

exports.__esModule = true;
exports. /*istanbul ignore end*/parsePatch = parsePatch;
function parsePatch(uniDiff) {
  /*istanbul ignore start*/var /*istanbul ignore end*/options = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};

  var diffstr = uniDiff.split(/\r\n|[\n\v\f\r\x85]/),
      delimiters = uniDiff.match(/\r\n|[\n\v\f\r\x85]/g) || [],
      list = [],
      i = 0;

  function parseIndex() {
    var index = {};
    list.push(index);

    // Parse diff metadata
    while (i < diffstr.length) {
      var line = diffstr[i];

      // File header found, end parsing diff metadata
      if (/^(\-\-\-|\+\+\+|@@)\s/.test(line)) {
        break;
      }

      // Diff index
      var header = /^(?:Index:|diff(?: -r \w+)+)\s+(.+?)\s*$/.exec(line);
      if (header) {
        index.index = header[1];
      }

      i++;
    }

    // Parse file headers if they are defined. Unified diff requires them, but
    // there's no technical issues to have an isolated hunk without file header
    parseFileHeader(index);
    parseFileHeader(index);

    // Parse hunks
    index.hunks = [];

    while (i < diffstr.length) {
      var _line = diffstr[i];

      if (/^(Index:|diff|\-\-\-|\+\+\+)\s/.test(_line)) {
        break;
      } else if (/^@@/.test(_line)) {
        index.hunks.push(parseHunk());
      } else if (_line && options.strict) {
        // Ignore unexpected content unless in strict mode
        throw new Error('Unknown line ' + (i + 1) + ' ' + JSON.stringify(_line));
      } else {
        i++;
      }
    }
  }

  // Parses the --- and +++ headers, if none are found, no lines
  // are consumed.
  function parseFileHeader(index) {
    var headerPattern = /^(---|\+\+\+)\s+([\S ]*)(?:\t(.*?)\s*)?$/;
    var fileHeader = headerPattern.exec(diffstr[i]);
    if (fileHeader) {
      var keyPrefix = fileHeader[1] === '---' ? 'old' : 'new';
      var fileName = fileHeader[2].replace(/\\\\/g, '\\');
      if (/^".*"$/.test(fileName)) {
        fileName = fileName.substr(1, fileName.length - 2);
      }
      index[keyPrefix + 'FileName'] = fileName;
      index[keyPrefix + 'Header'] = fileHeader[3];

      i++;
    }
  }

  // Parses a hunk
  // This assumes that we are at the start of a hunk.
  function parseHunk() {
    var chunkHeaderIndex = i,
        chunkHeaderLine = diffstr[i++],
        chunkHeader = chunkHeaderLine.split(/@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))? @@/);

    var hunk = {
      oldStart: +chunkHeader[1],
      oldLines: +chunkHeader[2] || 1,
      newStart: +chunkHeader[3],
      newLines: +chunkHeader[4] || 1,
      lines: [],
      linedelimiters: []
    };

    var addCount = 0,
        removeCount = 0;
    for (; i < diffstr.length; i++) {
      // Lines starting with '---' could be mistaken for the "remove line" operation
      // But they could be the header for the next file. Therefore prune such cases out.
      if (diffstr[i].indexOf('--- ') === 0 && i + 2 < diffstr.length && diffstr[i + 1].indexOf('+++ ') === 0 && diffstr[i + 2].indexOf('@@') === 0) {
        break;
      }
      var operation = diffstr[i][0];

      if (operation === '+' || operation === '-' || operation === ' ' || operation === '\\') {
        hunk.lines.push(diffstr[i]);
        hunk.linedelimiters.push(delimiters[i] || '\n');

        if (operation === '+') {
          addCount++;
        } else if (operation === '-') {
          removeCount++;
        } else if (operation === ' ') {
          addCount++;
          removeCount++;
        }
      } else {
        break;
      }
    }

    // Handle the empty block count case
    if (!addCount && hunk.newLines === 1) {
      hunk.newLines = 0;
    }
    if (!removeCount && hunk.oldLines === 1) {
      hunk.oldLines = 0;
    }

    // Perform optional sanity checking
    if (options.strict) {
      if (addCount !== hunk.newLines) {
        throw new Error('Added line count did not match for hunk at line ' + (chunkHeaderIndex + 1));
      }
      if (removeCount !== hunk.oldLines) {
        throw new Error('Removed line count did not match for hunk at line ' + (chunkHeaderIndex + 1));
      }
    }

    return hunk;
  }

  while (i < diffstr.length) {
    parseIndex();
  }

  return list;
}
//# sourceMappingURL=data:application/json;charset=utf-8;base64,{"version":3,"sources":["../../src/patch/parse.js"],"names":["parsePatch","uniDiff","options","diffstr","split","delimiters","match","list","i","parseIndex","index","push","length","line","test","header","exec","parseFileHeader","hunks","parseHunk","strict","Error","JSON","stringify","headerPattern","fileHeader","keyPrefix","fileName","replace","substr","chunkHeaderIndex","chunkHeaderLine","chunkHeader","hunk","oldStart","oldLines","newStart","newLines","lines","linedelimiters","addCount","removeCount","indexOf","operation"],"mappings":";;;gCAAgBA,U,GAAAA,U;AAAT,SAASA,UAAT,CAAoBC,OAApB,EAA2C;AAAA,sDAAdC,OAAc,uEAAJ,EAAI;;AAChD,MAAIC,UAAUF,QAAQG,KAAR,CAAc,qBAAd,CAAd;AAAA,MACIC,aAAaJ,QAAQK,KAAR,CAAc,sBAAd,KAAyC,EAD1D;AAAA,MAEIC,OAAO,EAFX;AAAA,MAGIC,IAAI,CAHR;;AAKA,WAASC,UAAT,GAAsB;AACpB,QAAIC,QAAQ,EAAZ;AACAH,SAAKI,IAAL,CAAUD,KAAV;;AAEA;AACA,WAAOF,IAAIL,QAAQS,MAAnB,EAA2B;AACzB,UAAIC,OAAOV,QAAQK,CAAR,CAAX;;AAEA;AACA,UAAI,wBAAwBM,IAAxB,CAA6BD,IAA7B,CAAJ,EAAwC;AACtC;AACD;;AAED;AACA,UAAIE,SAAU,0CAAD,CAA6CC,IAA7C,CAAkDH,IAAlD,CAAb;AACA,UAAIE,MAAJ,EAAY;AACVL,cAAMA,KAAN,GAAcK,OAAO,CAAP,CAAd;AACD;;AAEDP;AACD;;AAED;AACA;AACAS,oBAAgBP,KAAhB;AACAO,oBAAgBP,KAAhB;;AAEA;AACAA,UAAMQ,KAAN,GAAc,EAAd;;AAEA,WAAOV,IAAIL,QAAQS,MAAnB,EAA2B;AACzB,UAAIC,QAAOV,QAAQK,CAAR,CAAX;;AAEA,UAAI,iCAAiCM,IAAjC,CAAsCD,KAAtC,CAAJ,EAAiD;AAC/C;AACD,OAFD,MAEO,IAAI,MAAMC,IAAN,CAAWD,KAAX,CAAJ,EAAsB;AAC3BH,cAAMQ,KAAN,CAAYP,IAAZ,CAAiBQ,WAAjB;AACD,OAFM,MAEA,IAAIN,SAAQX,QAAQkB,MAApB,EAA4B;AACjC;AACA,cAAM,IAAIC,KAAJ,CAAU,mBAAmBb,IAAI,CAAvB,IAA4B,GAA5B,GAAkCc,KAAKC,SAAL,CAAeV,KAAf,CAA5C,CAAN;AACD,OAHM,MAGA;AACLL;AACD;AACF;AACF;;AAED;AACA;AACA,WAASS,eAAT,CAAyBP,KAAzB,EAAgC;AAC9B,QAAMc,gBAAgB,0CAAtB;AACA,QAAMC,aAAaD,cAAcR,IAAd,CAAmBb,QAAQK,CAAR,CAAnB,CAAnB;AACA,QAAIiB,UAAJ,EAAgB;AACd,UAAIC,YAAYD,WAAW,CAAX,MAAkB,KAAlB,GAA0B,KAA1B,GAAkC,KAAlD;AACA,UAAIE,WAAWF,WAAW,CAAX,EAAcG,OAAd,CAAsB,OAAtB,EAA+B,IAA/B,CAAf;AACA,UAAI,SAASd,IAAT,CAAca,QAAd,CAAJ,EAA6B;AAC3BA,mBAAWA,SAASE,MAAT,CAAgB,CAAhB,EAAmBF,SAASf,MAAT,GAAkB,CAArC,CAAX;AACD;AACDF,YAAMgB,YAAY,UAAlB,IAAgCC,QAAhC;AACAjB,YAAMgB,YAAY,QAAlB,IAA8BD,WAAW,CAAX,CAA9B;;AAEAjB;AACD;AACF;;AAED;AACA;AACA,WAASW,SAAT,GAAqB;AACnB,QAAIW,mBAAmBtB,CAAvB;AAAA,QACIuB,kBAAkB5B,QAAQK,GAAR,CADtB;AAAA,QAEIwB,cAAcD,gBAAgB3B,KAAhB,CAAsB,4CAAtB,CAFlB;;AAIA,QAAI6B,OAAO;AACTC,gBAAU,CAACF,YAAY,CAAZ,CADF;AAETG,gBAAU,CAACH,YAAY,CAAZ,CAAD,IAAmB,CAFpB;AAGTI,gBAAU,CAACJ,YAAY,CAAZ,CAHF;AAITK,gBAAU,CAACL,YAAY,CAAZ,CAAD,IAAmB,CAJpB;AAKTM,aAAO,EALE;AAMTC,sBAAgB;AANP,KAAX;;AASA,QAAIC,WAAW,CAAf;AAAA,QACIC,cAAc,CADlB;AAEA,WAAOjC,IAAIL,QAAQS,MAAnB,EAA2BJ,GAA3B,EAAgC;AAC9B;AACA;AACA,UAAIL,QAAQK,CAAR,EAAWkC,OAAX,CAAmB,MAAnB,MAA+B,CAA/B,IACMlC,IAAI,CAAJ,GAAQL,QAAQS,MADtB,IAEKT,QAAQK,IAAI,CAAZ,EAAekC,OAAf,CAAuB,MAAvB,MAAmC,CAFxC,IAGKvC,QAAQK,IAAI,CAAZ,EAAekC,OAAf,CAAuB,IAAvB,MAAiC,CAH1C,EAG6C;AACzC;AACH;AACD,UAAIC,YAAYxC,QAAQK,CAAR,EAAW,CAAX,CAAhB;;AAEA,UAAImC,cAAc,GAAd,IAAqBA,cAAc,GAAnC,IAA0CA,cAAc,GAAxD,IAA+DA,cAAc,IAAjF,EAAuF;AACrFV,aAAKK,KAAL,CAAW3B,IAAX,CAAgBR,QAAQK,CAAR,CAAhB;AACAyB,aAAKM,cAAL,CAAoB5B,IAApB,CAAyBN,WAAWG,CAAX,KAAiB,IAA1C;;AAEA,YAAImC,cAAc,GAAlB,EAAuB;AACrBH;AACD,SAFD,MAEO,IAAIG,cAAc,GAAlB,EAAuB;AAC5BF;AACD,SAFM,MAEA,IAAIE,cAAc,GAAlB,EAAuB;AAC5BH;AACAC;AACD;AACF,OAZD,MAYO;AACL;AACD;AACF;;AAED;AACA,QAAI,CAACD,QAAD,IAAaP,KAAKI,QAAL,KAAkB,CAAnC,EAAsC;AACpCJ,WAAKI,QAAL,GAAgB,CAAhB;AACD;AACD,QAAI,CAACI,WAAD,IAAgBR,KAAKE,QAAL,KAAkB,CAAtC,EAAyC;AACvCF,WAAKE,QAAL,GAAgB,CAAhB;AACD;;AAED;AACA,QAAIjC,QAAQkB,MAAZ,EAAoB;AAClB,UAAIoB,aAAaP,KAAKI,QAAtB,EAAgC;AAC9B,cAAM,IAAIhB,KAAJ,CAAU,sDAAsDS,mBAAmB,CAAzE,CAAV,CAAN;AACD;AACD,UAAIW,gBAAgBR,KAAKE,QAAzB,EAAmC;AACjC,cAAM,IAAId,KAAJ,CAAU,wDAAwDS,mBAAmB,CAA3E,CAAV,CAAN;AACD;AACF;;AAED,WAAOG,IAAP;AACD;;AAED,SAAOzB,IAAIL,QAAQS,MAAnB,EAA2B;AACzBH;AACD;;AAED,SAAOF,IAAP;AACD","file":"parse.js","sourcesContent":["export function parsePatch(uniDiff, options = {}) {\n  let diffstr = uniDiff.split(/\\r\\n|[\\n\\v\\f\\r\\x85]/),\n      delimiters = uniDiff.match(/\\r\\n|[\\n\\v\\f\\r\\x85]/g) || [],\n      list = [],\n      i = 0;\n\n  function parseIndex() {\n    let index = {};\n    list.push(index);\n\n    // Parse diff metadata\n    while (i < diffstr.length) {\n      let line = diffstr[i];\n\n      // File header found, end parsing diff metadata\n      if (/^(\\-\\-\\-|\\+\\+\\+|@@)\\s/.test(line)) {\n        break;\n      }\n\n      // Diff index\n      let header = (/^(?:Index:|diff(?: -r \\w+)+)\\s+(.+?)\\s*$/).exec(line);\n      if (header) {\n        index.index = header[1];\n      }\n\n      i++;\n    }\n\n    // Parse file headers if they are defined. Unified diff requires them, but\n    // there's no technical issues to have an isolated hunk without file header\n    parseFileHeader(index);\n    parseFileHeader(index);\n\n    // Parse hunks\n    index.hunks = [];\n\n    while (i < diffstr.length) {\n      let line = diffstr[i];\n\n      if (/^(Index:|diff|\\-\\-\\-|\\+\\+\\+)\\s/.test(line)) {\n        break;\n      } else if (/^@@/.test(line)) {\n        index.hunks.push(parseHunk());\n      } else if (line && options.strict) {\n        // Ignore unexpected content unless in strict mode\n        throw new Error('Unknown line ' + (i + 1) + ' ' + JSON.stringify(line));\n      } else {\n        i++;\n      }\n    }\n  }\n\n  // Parses the --- and +++ headers, if none are found, no lines\n  // are consumed.\n  function parseFileHeader(index) {\n    const headerPattern = /^(---|\\+\\+\\+)\\s+([\\S ]*)(?:\\t(.*?)\\s*)?$/;\n    const fileHeader = headerPattern.exec(diffstr[i]);\n    if (fileHeader) {\n      let keyPrefix = fileHeader[1] === '---' ? 'old' : 'new';\n      let fileName = fileHeader[2].replace(/\\\\\\\\/g, '\\\\');\n      if (/^\".*\"$/.test(fileName)) {\n        fileName = fileName.substr(1, fileName.length - 2);\n      }\n      index[keyPrefix + 'FileName'] = fileName;\n      index[keyPrefix + 'Header'] = fileHeader[3];\n\n      i++;\n    }\n  }\n\n  // Parses a hunk\n  // This assumes that we are at the start of a hunk.\n  function parseHunk() {\n    let chunkHeaderIndex = i,\n        chunkHeaderLine = diffstr[i++],\n        chunkHeader = chunkHeaderLine.split(/@@ -(\\d+)(?:,(\\d+))? \\+(\\d+)(?:,(\\d+))? @@/);\n\n    let hunk = {\n      oldStart: +chunkHeader[1],\n      oldLines: +chunkHeader[2] || 1,\n      newStart: +chunkHeader[3],\n      newLines: +chunkHeader[4] || 1,\n      lines: [],\n      linedelimiters: []\n    };\n\n    let addCount = 0,\n        removeCount = 0;\n    for (; i < diffstr.length; i++) {\n      // Lines starting with '---' could be mistaken for the \"remove line\" operation\n      // But they could be the header for the next file. Therefore prune such cases out.\n      if (diffstr[i].indexOf('--- ') === 0\n            && (i + 2 < diffstr.length)\n            && diffstr[i + 1].indexOf('+++ ') === 0\n            && diffstr[i + 2].indexOf('@@') === 0) {\n          break;\n      }\n      let operation = diffstr[i][0];\n\n      if (operation === '+' || operation === '-' || operation === ' ' || operation === '\\\\') {\n        hunk.lines.push(diffstr[i]);\n        hunk.linedelimiters.push(delimiters[i] || '\\n');\n\n        if (operation === '+') {\n          addCount++;\n        } else if (operation === '-') {\n          removeCount++;\n        } else if (operation === ' ') {\n          addCount++;\n          removeCount++;\n        }\n      } else {\n        break;\n      }\n    }\n\n    // Handle the empty block count case\n    if (!addCount && hunk.newLines === 1) {\n      hunk.newLines = 0;\n    }\n    if (!removeCount && hunk.oldLines === 1) {\n      hunk.oldLines = 0;\n    }\n\n    // Perform optional sanity checking\n    if (options.strict) {\n      if (addCount !== hunk.newLines) {\n        throw new Error('Added line count did not match for hunk at line ' + (chunkHeaderIndex + 1));\n      }\n      if (removeCount !== hunk.oldLines) {\n        throw new Error('Removed line count did not match for hunk at line ' + (chunkHeaderIndex + 1));\n      }\n    }\n\n    return hunk;\n  }\n\n  while (i < diffstr.length) {\n    parseIndex();\n  }\n\n  return list;\n}\n"]}