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Luca
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Merge branch 'release/0.0.1'
2 parents d58f85f + aeb5b4b commit 17970e2

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‎.gitignore

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node_modules
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test/testRepo

‎Makefile

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test:
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@unzip test/testRepo.zip -d test/
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@./node_modules/.bin/mocha --ignore-leaks
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.PHONY: test

‎README.md

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# GitReader
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Read and format git object from a git Repo
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## How to use
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var gitReader = require('gitReader')
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, repo = gitReader.init('.');
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repo.getBranches(function (err, branches) { });
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repo.getObject(sha1, function (err, result) { });
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## How to test
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npm test
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## License
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(The MIT License)
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Copyright (c) 2011 Luca Lanziani <[email protected]>
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Permission is hereby granted, free of charge, to any person obtaining
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a copy of this software and associated documentation files (the
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'Software'), to deal in the Software without restriction, including
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without limitation the rights to use, copy, modify, merge, publish,
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distribute, sublicense, and/or sell copies of the Software, and to
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permit persons to whom the Software is furnished to do so, subject to
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the following conditions:
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The above copyright notice and this permission notice shall be
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included in all copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE

‎index.js

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var repo = require('./lib/repo.js');
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module.exports.init = repo.init;

‎lib/object_factory.js

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'use strict';
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/*jslint node: true, white: true, maxerr: 50, indent: 2 */
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var fs = require('fs')
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, path = require('path')
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, parser = require('./object_parser.js')
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, zlib = require('zlib')
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;
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var noop = function() {};
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var objectFactory = function() {
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var that, sha1ToFile, getData, getObject;
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that = {};
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sha1ToFile = function (sha1, dir) {
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return path.join(dir, 'objects', sha1.slice(0, 2), sha1.slice(2, sha1.length));
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};
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getData = function (sha1, dir, cb) {
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var callback, filename;
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if (typeof sha1 === "function") {
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cb = sha1;
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sha1 = undefined;
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}
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if (typeof dir === "function") {
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cb = dir;
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dir = undefined;
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}
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callback = cb || noop;
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filename = sha1ToFile(sha1, dir);
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fs.readFile(filename, function (err, data) {
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if (err) {
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return cb(err, null);
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}
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zlib.inflate(data, function (err, data) {
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if (err) {
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return cb(err, null);
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}
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cb(null, data);
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});
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});
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};
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getObject = function (sha1, dir, cb) {
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var callback;
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callback = cb || noop;
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getData(sha1, dir, function(err, data) {
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if (err) {
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return callback(err, null);
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}
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return callback(null, parser.parse(data));
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});
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};
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that.getObject = getObject;
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return that;
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};
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module.exports = objectFactory();
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//var objects = objectFactory()
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// , blob = "303ff981c488b812b6215f7db7920dedb3b59d9a"
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// , tree = "324e16519b70c18a9c92db30aa800912ec7f41be"
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// , commit = "e42d12f3d9f9c47bdd79a0bb837cfdf50d4a58af"
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// , dir= "../../test/TestGitRepo/.git"
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// ;
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// objects.getData(tree, dir, function(err, data){
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// console.log(data.toString());
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// })
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// objects.getObject(commit,dir,function(err, data) {
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// console.log(data);
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// })
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// objects.getObject(tree,dir,function(err, data) {
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// console.log(data);
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// })
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// objects.getObject(blob,dir,function(err, data) {
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// console.log(data);
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// })

‎lib/object_parser.js

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'use strict';
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/*jslint node: true, white: true, maxerr: 50, indent: 2 */
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var commit_parser = require('./parser/commit.js')
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, blob_parser = require('./parser/blob.js')
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, tree_parser = require('./parser/tree.js')
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;
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var objTypes = {
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"commit": commit_parser,
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"blob": blob_parser,
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"tree": tree_parser
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};
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var parse = function (data) {
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var obj, findNextChar, getChunck, getHeader, header,
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getData;
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obj = {};
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findNextChar = function (char, start) {
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var from = (start === undefined) ? 0 : start;
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if (from >= data.length) {
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return data.length;
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}
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while ((data[from] !== char.charCodeAt(0)) && (from < data.length)) {
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from += 1;
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}
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return from;
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};
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getChunck = function (start) {
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var from, to;
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from = (start === undefined) ? 0 : start;
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if (from >= data.length) {
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return null;
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}
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to = findNextChar('\0', from);
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return data.slice(from, to);
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};
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getHeader = function () {
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var header = getChunck(0),
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field = header.toString().split(" ");
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header = {
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type: field[0],
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length: field[1]
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};
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return header;
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};
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getData = function (type) {
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var body, from;
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from = findNextChar('\0', 0);
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body = objTypes[type].parse(data.slice(from + 1));
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return body;
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};
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header = getHeader();
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obj.type = header.type;
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obj.body = getData(header.type);
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return obj;
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};
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module.exports = { parse: parse };

‎lib/parser/blob.js

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'use strict';
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/*jslint node: true, white: true, maxerr: 50, indent: 2 */
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var parse = function(data) {
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var getData;
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getData = function() {
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return data.toString();
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};
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return getData();
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};
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module.exports = {parse: parse};
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//console.log(new Commit(1).getd());

‎lib/parser/commit.js

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'use strict';
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/*jslint node: true, white: true, maxerr: 50, indent: 2 */
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var parse = function(data) {
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var arrData, obj, findNextSpace, getInfo, getMessage,
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getData;
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arrData = data.toString().split('\n');
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findNextSpace = function(start) {
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var from = (start === undefined) ? 0 : start;
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if (from >= arrData.length) {
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return arrData.length;
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}
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while ((arrData[from] !== '') && (from<arrData.length))
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{from += 1;}
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return from;
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};
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getInfo = function() {
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var spacePosition
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, arrHeader = arrData.slice(0,findNextSpace(0))
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, objHeader = {}
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;
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arrHeader.forEach(function (x) {
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spacePosition = x.indexOf(' ');
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objHeader[x.slice(0,spacePosition)] = x.slice(spacePosition+1);
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});
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return objHeader;
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};
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getMessage = function() {
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var arrBody = arrData.slice(findNextSpace(0)+1);
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return arrBody.join('\n');
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};
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getData = function() {
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return {"info": getInfo(), "message": getMessage()};
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};
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return getData();
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};
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module.exports = {parse: parse};
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//console.log(new Commit(1).getd());

‎lib/parser/tree.js

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'use strict';
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/*jslint node: true, white: true, maxerr: 50, indent: 2 */
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var parse = function(data) {
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var arrData, obj, findNextChar, getSha, getChunck,
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getData, getMessage, findNextSpace;
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arrData = data.toString().split('\n');
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findNextChar = function(char, start) {
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var from = (start === undefined) ? 0 : start;
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if (from >= data.length) {
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return data.length;
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}
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while ((data[from] !== char.charCodeAt(0)) && (from<data.length))
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{from += 1;}
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return from;
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};
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getSha = function(start) {
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return data.slice(start, start+20);
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};
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getChunck = function(start) {
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var from, to;
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from = (start === undefined) ? 0 : start;
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if (from >= data.length) {
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return null;
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}
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to = findNextChar('\0', from);
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return data.slice(from, to);
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};
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getData = function() {
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var arrData, chunck, length, data,
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sha, type;
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arrData = [];
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length = 0;
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while ( null !== (chunck = getChunck(length))) {
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length += chunck.length+1;
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sha = getSha(length);
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length += sha.length;
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data = chunck.toString().split(' ');
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type = data[0].slice(0, 3) === "100" ? "blob" : "tree";
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arrData.push({mode: data[0],
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name:data[1],
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sha: sha.toString('hex'),
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type: type
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});
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}
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return arrData;
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};
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getMessage = function() {
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var arrBody = arrData.slice(findNextSpace(0)+1);
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return arrBody.join('\n');
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};
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return getData();
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};
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module.exports = {parse:parse};
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//console.log(new Commit(1).getd());

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