wallet-core/node_modules/diff/lib/patch/create.js

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2017-05-28 00:38:50 +02:00
/*istanbul ignore start*/'use strict';
exports.__esModule = true;
exports. /*istanbul ignore end*/structuredPatch = structuredPatch;
/*istanbul ignore start*/exports. /*istanbul ignore end*/createTwoFilesPatch = createTwoFilesPatch;
/*istanbul ignore start*/exports. /*istanbul ignore end*/createPatch = createPatch;
var /*istanbul ignore start*/_line = require('../diff/line') /*istanbul ignore end*/;
/*istanbul ignore start*/
function _toConsumableArray(arr) { if (Array.isArray(arr)) { for (var i = 0, arr2 = Array(arr.length); i < arr.length; i++) { arr2[i] = arr[i]; } return arr2; } else { return Array.from(arr); } }
/*istanbul ignore end*/function structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) {
if (!options) {
options = {};
}
if (typeof options.context === 'undefined') {
options.context = 4;
}
var diff = /*istanbul ignore start*/(0, _line.diffLines) /*istanbul ignore end*/(oldStr, newStr, options);
diff.push({ value: '', lines: [] }); // Append an empty value to make cleanup easier
function contextLines(lines) {
return lines.map(function (entry) {
return ' ' + entry;
});
}
var hunks = [];
var oldRangeStart = 0,
newRangeStart = 0,
curRange = [],
oldLine = 1,
newLine = 1;
/*istanbul ignore start*/
var _loop = function _loop( /*istanbul ignore end*/i) {
var current = diff[i],
lines = current.lines || current.value.replace(/\n$/, '').split('\n');
current.lines = lines;
if (current.added || current.removed) {
/*istanbul ignore start*/
var _curRange;
/*istanbul ignore end*/
// If we have previous context, start with that
if (!oldRangeStart) {
var prev = diff[i - 1];
oldRangeStart = oldLine;
newRangeStart = newLine;
if (prev) {
curRange = options.context > 0 ? contextLines(prev.lines.slice(-options.context)) : [];
oldRangeStart -= curRange.length;
newRangeStart -= curRange.length;
}
}
// Output our changes
/*istanbul ignore start*/(_curRange = /*istanbul ignore end*/curRange).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_curRange /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/lines.map(function (entry) {
return (current.added ? '+' : '-') + entry;
})));
// Track the updated file position
if (current.added) {
newLine += lines.length;
} else {
oldLine += lines.length;
}
} else {
// Identical context lines. Track line changes
if (oldRangeStart) {
// Close out any changes that have been output (or join overlapping)
if (lines.length <= options.context * 2 && i < diff.length - 2) {
/*istanbul ignore start*/
var _curRange2;
/*istanbul ignore end*/
// Overlapping
/*istanbul ignore start*/(_curRange2 = /*istanbul ignore end*/curRange).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_curRange2 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/contextLines(lines)));
} else {
/*istanbul ignore start*/
var _curRange3;
/*istanbul ignore end*/
// end the range and output
var contextSize = Math.min(lines.length, options.context);
/*istanbul ignore start*/(_curRange3 = /*istanbul ignore end*/curRange).push. /*istanbul ignore start*/apply /*istanbul ignore end*/( /*istanbul ignore start*/_curRange3 /*istanbul ignore end*/, /*istanbul ignore start*/_toConsumableArray( /*istanbul ignore end*/contextLines(lines.slice(0, contextSize))));
var hunk = {
oldStart: oldRangeStart,
oldLines: oldLine - oldRangeStart + contextSize,
newStart: newRangeStart,
newLines: newLine - newRangeStart + contextSize,
lines: curRange
};
if (i >= diff.length - 2 && lines.length <= options.context) {
// EOF is inside this hunk
var oldEOFNewline = /\n$/.test(oldStr);
var newEOFNewline = /\n$/.test(newStr);
if (lines.length == 0 && !oldEOFNewline) {
// special case: old has no eol and no trailing context; no-nl can end up before adds
curRange.splice(hunk.oldLines, 0, '\\ No newline at end of file');
} else if (!oldEOFNewline || !newEOFNewline) {
curRange.push('\\ No newline at end of file');
}
}
hunks.push(hunk);
oldRangeStart = 0;
newRangeStart = 0;
curRange = [];
}
}
oldLine += lines.length;
newLine += lines.length;
}
};
for (var i = 0; i < diff.length; i++) {
/*istanbul ignore start*/
_loop( /*istanbul ignore end*/i);
}
return {
oldFileName: oldFileName, newFileName: newFileName,
oldHeader: oldHeader, newHeader: newHeader,
hunks: hunks
};
}
function createTwoFilesPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options) {
var diff = structuredPatch(oldFileName, newFileName, oldStr, newStr, oldHeader, newHeader, options);
var ret = [];
if (oldFileName == newFileName) {
ret.push('Index: ' + oldFileName);
}
ret.push('===================================================================');
ret.push('--- ' + diff.oldFileName + (typeof diff.oldHeader === 'undefined' ? '' : '\t' + diff.oldHeader));
ret.push('+++ ' + diff.newFileName + (typeof diff.newHeader === 'undefined' ? '' : '\t' + diff.newHeader));
for (var i = 0; i < diff.hunks.length; i++) {
var hunk = diff.hunks[i];
ret.push('@@ -' + hunk.oldStart + ',' + hunk.oldLines + ' +' + hunk.newStart + ',' + hunk.newLines + ' @@');
ret.push.apply(ret, hunk.lines);
}
return ret.join('\n') + '\n';
}
function createPatch(fileName, oldStr, newStr, oldHeader, newHeader, options) {
return createTwoFilesPatch(fileName, fileName, oldStr, newStr, oldHeader, newHeader, options);
}
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