Stackedit/public/lib/github.js

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2013-04-09 07:58:06 +00:00
// Github.js 0.7.0
// (c) 2012 Michael Aufreiter, Development Seed
// Github.js is freely distributable under the MIT license.
// For all details and documentation:
// http://substance.io/michael/github
(function() {
var Github;
var API_URL = 'https://api.github.com';
Github = window.Github = function(options) {
// HTTP Request Abstraction
// =======
//
// I'm not proud of this and neither should you be if you were responsible for the XMLHttpRequest spec.
function _request(method, path, data, cb, raw) {
function getURL() {
var url = API_URL + path;
return url + ((/\?/).test(url) ? "&" : "?") + (new Date()).getTime();
}
var xhr = new XMLHttpRequest();
if (!raw) {xhr.dataType = "json";}
xhr.open(method, getURL());
xhr.onreadystatechange = function () {
if (this.readyState == 4) {
if (this.status >= 200 && this.status < 300 || this.status === 304) {
cb(null, raw ? this.responseText : this.responseText ? JSON.parse(this.responseText) : true);
} else {
cb({request: this, error: this.status});
}
}
};
xhr.setRequestHeader('Accept','application/vnd.github.raw');
xhr.setRequestHeader('Content-Type','application/json');
if (
(options.auth == 'oauth' && options.token) ||
(options.auth == 'basic' && options.username && options.password)
) {
xhr.setRequestHeader('Authorization',options.auth == 'oauth'
? 'token '+ options.token
: 'Basic ' + Base64.encode(options.username + ':' + options.password)
);
}
data ? xhr.send(JSON.stringify(data)) : xhr.send();
}
// User API
// =======
Github.User = function() {
this.repos = function(cb) {
_request("GET", "/user/repos?type=all&per_page=1000&sort=updated", null, function(err, res) {
cb(err, res);
});
};
// List user organizations
// -------
this.orgs = function(cb) {
_request("GET", "/user/orgs", null, function(err, res) {
cb(err, res);
});
};
// List authenticated user's gists
// -------
this.gists = function(cb) {
_request("GET", "/gists", null, function(err, res) {
cb(err,res);
});
};
// Show user information
// -------
this.show = function(username, cb) {
var command = username ? "/users/"+username : "/user";
_request("GET", command, null, function(err, res) {
cb(err, res);
});
};
// List user repositories
// -------
this.userRepos = function(username, cb) {
_request("GET", "/users/"+username+"/repos?type=all&per_page=1000&sort=updated", null, function(err, res) {
cb(err, res);
});
};
// List a user's gists
// -------
this.userGists = function(username, cb) {
_request("GET", "/users/"+username+"/gists", null, function(err, res) {
cb(err,res);
});
};
// List organization repositories
// -------
this.orgRepos = function(orgname, cb) {
_request("GET", "/orgs/"+orgname+"/repos?type=all&per_page=1000&sort=updated&direction=desc", null, function(err, res) {
cb(err, res);
});
};
// Follow user
// -------
this.follow = function(username, cb) {
_request("PUT", "/user/following/"+username, null, function(err, res) {
cb(err, res);
});
};
// Unfollow user
// -------
this.unfollow = function(username, cb) {
_request("DELETE", "/user/following/"+username, null, function(err, res) {
cb(err, res);
});
};
};
// Repository API
// =======
Github.Repository = function(options) {
var repo = options.name;
var user = options.user;
var that = this;
var repoPath = "/repos/" + user + "/" + repo;
var currentTree = {
"branch": null,
"sha": null
};
// Uses the cache if branch has not been changed
// -------
function updateTree(branch, cb) {
if (branch === currentTree.branch && currentTree.sha) return cb(null, currentTree.sha);
that.getRef("heads/"+branch, function(err, sha) {
currentTree.branch = branch;
currentTree.sha = sha;
cb(err, sha);
});
}
// Get a particular reference
// -------
this.getRef = function(ref, cb) {
_request("GET", repoPath + "/git/refs/" + ref, null, function(err, res) {
if (err) return cb(err);
cb(null, res.object.sha);
});
};
// Create a new reference
// --------
//
// {
// "ref": "refs/heads/my-new-branch-name",
// "sha": "827efc6d56897b048c772eb4087f854f46256132"
// }
this.createRef = function(options, cb) {
_request("POST", repoPath + "/git/refs", options, cb);
};
// Delete a reference
// --------
//
// repo.deleteRef('heads/gh-pages')
// repo.deleteRef('tags/v1.0')
this.deleteRef = function(ref, cb) {
_request("DELETE", repoPath + "/git/refs/"+ref, options, cb);
};
// List all branches of a repository
// -------
this.listBranches = function(cb) {
_request("GET", repoPath + "/git/refs/heads", null, function(err, heads) {
if (err) return cb(err);
cb(null, _.map(heads, function(head) { return _.last(head.ref.split('/')); }));
});
};
// Retrieve the contents of a blob
// -------
this.getBlob = function(sha, cb) {
_request("GET", repoPath + "/git/blobs/" + sha, null, cb, 'raw');
};
// For a given file path, get the corresponding sha (blob for files, tree for dirs)
// -------
this.getSha = function(branch, path, cb) {
// Just use head if path is empty
if (path === "") return that.getRef("heads/"+branch, cb);
that.getTree(branch+"?recursive=true", function(err, tree) {
var file = _.select(tree, function(file) {
return file.path === path;
})[0];
cb(null, file ? file.sha : null);
});
};
// Retrieve the tree a commit points to
// -------
this.getTree = function(tree, cb) {
_request("GET", repoPath + "/git/trees/"+tree, null, function(err, res) {
if (err) return cb(err);
cb(null, res.tree);
});
};
// Post a new blob object, getting a blob SHA back
// -------
this.postBlob = function(content, cb) {
if (typeof(content) === "string") {
content = {
"content": content,
"encoding": "utf-8"
};
}
_request("POST", repoPath + "/git/blobs", content, function(err, res) {
if (err) return cb(err);
cb(null, res.sha);
});
};
// Update an existing tree adding a new blob object getting a tree SHA back
// -------
this.updateTree = function(baseTree, path, blob, cb) {
var data = {
"base_tree": baseTree,
"tree": [
{
"path": path,
"mode": "100644",
"type": "blob",
"sha": blob
}
]
};
_request("POST", repoPath + "/git/trees", data, function(err, res) {
if (err) return cb(err);
cb(null, res.sha);
});
};
// Post a new tree object having a file path pointer replaced
// with a new blob SHA getting a tree SHA back
// -------
this.postTree = function(tree, cb) {
_request("POST", repoPath + "/git/trees", { "tree": tree }, function(err, res) {
if (err) return cb(err);
cb(null, res.sha);
});
};
// Create a new commit object with the current commit SHA as the parent
// and the new tree SHA, getting a commit SHA back
// -------
this.commit = function(parent, tree, message, cb) {
var data = {
"message": message,
"author": {
"name": options.username
},
"parents": [
parent
],
"tree": tree
};
_request("POST", repoPath + "/git/commits", data, function(err, res) {
currentTree.sha = res.sha; // update latest commit
if (err) return cb(err);
cb(null, res.sha);
});
};
// Update the reference of your head to point to the new commit SHA
// -------
this.updateHead = function(head, commit, cb) {
_request("PATCH", repoPath + "/git/refs/heads/" + head, { "sha": commit }, function(err, res) {
cb(err);
});
};
// Show repository information
// -------
this.show = function(cb) {
_request("GET", repoPath, null, cb);
};
// Get contents
// --------
this.contents = function(branch, path, cb) {
_request("GET", repoPath + "/contents?ref=" + branch, { path: path }, cb);
};
// Fork repository
// -------
this.fork = function(cb) {
_request("POST", repoPath + "/forks", null, cb);
};
// Create pull request
// --------
this.createPullRequest = function(options, cb) {
_request("POST", repoPath + "/pulls", options, cb);
};
// Read file at given path
// -------
this.read = function(branch, path, cb) {
that.getSha(branch, path, function(err, sha) {
if (!sha) return cb("not found", null);
that.getBlob(sha, function(err, content) {
cb(err, content, sha);
});
});
};
// Remove a file from the tree
// -------
this.remove = function(branch, path, cb) {
updateTree(branch, function(err, latestCommit) {
that.getTree(latestCommit+"?recursive=true", function(err, tree) {
// Update Tree
var newTree = _.reject(tree, function(ref) { return ref.path === path; });
_.each(newTree, function(ref) {
if (ref.type === "tree") delete ref.sha;
});
that.postTree(newTree, function(err, rootTree) {
that.commit(latestCommit, rootTree, 'Deleted '+path , function(err, commit) {
that.updateHead(branch, commit, function(err) {
cb(err);
});
});
});
});
});
};
// Move a file to a new location
// -------
this.move = function(branch, path, newPath, cb) {
updateTree(branch, function(err, latestCommit) {
that.getTree(latestCommit+"?recursive=true", function(err, tree) {
// Update Tree
_.each(tree, function(ref) {
if (ref.path === path) ref.path = newPath;
if (ref.type === "tree") delete ref.sha;
});
that.postTree(tree, function(err, rootTree) {
that.commit(latestCommit, rootTree, 'Deleted '+path , function(err, commit) {
that.updateHead(branch, commit, function(err) {
cb(err);
});
});
});
});
});
};
// Write file contents to a given branch and path
// -------
this.write = function(branch, path, content, message, cb) {
updateTree(branch, function(err, latestCommit) {
if (err) return cb(err);
that.postBlob(content, function(err, blob) {
if (err) return cb(err);
that.updateTree(latestCommit, path, blob, function(err, tree) {
if (err) return cb(err);
that.commit(latestCommit, tree, message, function(err, commit) {
if (err) return cb(err);
that.updateHead(branch, commit, cb);
});
});
});
});
};
};
// Gists API
// =======
Github.Gist = function(options) {
var id = options.id;
var gistPath = "/gists/"+id;
// Read the gist
// --------
this.read = function(cb) {
_request("GET", gistPath, null, function(err, gist) {
cb(err, gist);
});
};
// Create the gist
// --------
// {
// "description": "the description for this gist",
// "public": true,
// "files": {
// "file1.txt": {
// "content": "String file contents"
// }
// }
// }
this.create = function(options, cb){
_request("POST","/gists", options, cb);
};
// Delete the gist
// --------
this.delete = function(cb) {
_request("DELETE", gistPath, null, function(err,res) {
cb(err,res);
});
};
// Fork a gist
// --------
this.fork = function(cb) {
_request("POST", gistPath+"/fork", null, function(err,res) {
cb(err,res);
});
};
// Update a gist with the new stuff
// --------
this.update = function(options, cb) {
_request("PATCH", gistPath, options, function(err,res) {
cb(err,res);
});
};
};
// Top Level API
// -------
this.getRepo = function(user, repo) {
return new Github.Repository({user: user, name: repo});
};
this.getUser = function() {
return new Github.User();
};
this.getGist = function(id) {
return new Github.Gist({id: id});
};
};
}).call(this);