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Cherrypick tests by jdgarcia · Pull Request #595 · nodegit/nodegit · GitHub

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10 changes: 10 additions & 0 deletions generate/input/descriptor.json
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Original file line number Diff line number Diff line change
Expand Up @@ -286,6 +286,16 @@
}
}
},
"cherrypick": {
"functions": {
"git_cherrypick": {
"isAsync": true,
"return": {
"isErrorCode": true
}
}
}
},
"clone": {
"functions": {
"git_clone": {
Expand Down
73 changes: 73 additions & 0 deletions lib/cherrypick.js
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@@ -0,0 +1,73 @@
var NodeGit = require("../");
var shallowClone = require("./utils/shallow_clone");
var normalizeOptions = NodeGit.Utils.normalizeOptions;

var Cherrypick = NodeGit.Cherrypick;
var _cherrypick = Cherrypick.cherrypick;
var _commit = Cherrypick.commit;

/**
* Cherrypick a commit and, changing the index and working directory
*
* @async
* @param {Repository} repo The repo to checkout head
* @param {Commit} commit The commit to cherrypick
* @param {CherrypickOptions} [options] Options for the cherrypick
* @return {int} 0 on success, -1 on failure
*/
Cherrypick.cherrypick = function(repo, commit, options) {
var mergeOpts;
var checkoutOpts;

if (options) {
options = shallowClone(options);
mergeOpts = options.mergeOpts;
checkoutOpts = options.checkoutOpts;
delete options.mergeOpts;
delete options.checkoutOpts;
}

options = normalizeOptions(options, NodeGit.CherrypickOptions);

if (mergeOpts) {
options.mergeOpts =
normalizeOptions(mergeOpts, NodeGit.MergeOptions);
}

if (checkoutOpts) {
options.checkoutOpts =
normalizeOptions(checkoutOpts, NodeGit.CheckoutOptions);
}

return _cherrypick.call(this, repo, commit, options);
};

/**
* Cherrypicks the given commit against "our" commit, producing an index that
* reflects the result of the cherrypick. The index is not backed by a repo.
*
* @async
* @param {Repository} repo The repo to cherrypick commits
* @param {Commit} cherrypick_commit The commit to cherrypick
* @param {Commit} our_commit The commit to revert against
* @param {int} mainline The parent of the revert commit (1 or
* 2) if it's a merge, 0 otherwise
* @param {MergeOptions} [merge_options] Merge options for the cherrypick
* @return {int} 0 on success, -1 on failure
*/
Cherrypick.commit = function(
repo,
cherrypick_commit,
our_commit,
mainline,
merge_options) {
merge_options = normalizeOptions(merge_options, NodeGit.MergeOptions);

return _commit.call(
this,
repo,
cherrypick_commit,
our_commit,
mainline,
merge_options);
};
297 changes: 297 additions & 0 deletions test/tests/cherrypick.js
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var assert = require("assert");
var path = require("path");
var local = path.join.bind(path, __dirname);
var Promise = require("nodegit-promise");
var promisify = require("promisify-node");
var fse = promisify(require("fs-extra"));

describe("Cherrypick", function() {
var NodeGit = require("../../");
var Cherrypick = NodeGit.Cherrypick;

var repoPath = local("../repos/cherrypick");

beforeEach(function() {
var test = this;
return fse.remove(repoPath)
.then(function() {
return fse.ensureDir(repoPath);
})
.then(function() {
return NodeGit.Repository.init(repoPath, 0);
})
.then(function(repo) {
test.repository = repo;
});
});

after(function() {
return fse.remove(repoPath);
});

function addFileToIndex(repository, fileName) {
return repository.openIndex()
.then(function(index) {
index.read(1);
index.addByPath(fileName);
index.write();

return index.writeTree();
});
}

// Expects empty repo
function setupBranches(repository, checkoutOurs) {
var repoWorkDir = repository.workdir();

var ourBranchName = "ours";
var theirBranchName = "theirs";

var baseFileName = "baseNewFile.txt";
var ourFileName = "ourNewFile.txt";
var theirFileName = "theirNewFile.txt";

var baseFileContent = "How do you feel about Toll Roads?";
var ourFileContent = "I like Toll Roads. I have an EZ-Pass!";
var theirFileContent = "I'm skeptical about Toll Roads";

var ourSignature = NodeGit.Signature.create
("Ron Paul", "RonPaul@TollRoadsRBest.info", 123456789, 60);
var theirSignature = NodeGit.Signature.create
("Greg Abbott", "Gregggg@IllTollYourFace.us", 123456789, 60);

var initialCommit;
var ourBranch;
var theirBranch;

var ret = {
ourBranchName: ourBranchName,
theirBranchName: theirBranchName,

ourSignature: ourSignature,
theirSignature: theirSignature,

ourFileName: ourFileName,
theirFileName: theirFileName,

ourFileContent: ourFileContent,
theirFileContent: theirFileContent
};

return Promise.all([
fse.writeFile(path.join(repoWorkDir, baseFileName), baseFileContent),
fse.writeFile(path.join(repoWorkDir, ourFileName), ourFileContent),
fse.writeFile(path.join(repoWorkDir, theirFileName), theirFileContent)
])
.then(function() {
return addFileToIndex(repository, baseFileName);
})
.then(function(oid) {
assert.equal(oid.toString(),
"b5cdc109d437c4541a13fb7509116b5f03d5039a");

return repository.createCommit("HEAD", ourSignature, ourSignature,
"initial commit", oid, []);
})
.then(function(commitOid) {
assert.equal(commitOid.toString(),
"be03abdf0353d05924c53bebeb0e5bb129cda44a");

return repository.getCommit(commitOid);
})
.then(function(commit) {
ret.initialCommit = initialCommit = commit;

return Promise.all([
repository.createBranch(ourBranchName, initialCommit),
repository.createBranch(theirBranchName, initialCommit)
]);
})
.then(function(branches) {
assert(branches[0]);
assert(branches[1]);

ret.ourBranch = ourBranch = branches[0];
ret.theirBranch = theirBranch = branches[1];

return addFileToIndex(repository, ourFileName);
})
.then(function(oid) {
assert.equal(oid.toString(),
"77867fc0bfeb3f80ab18a78c8d53aa3a06207047");

return repository.createCommit(ourBranch.name(), ourSignature,
ourSignature, "we made a commit", oid, [initialCommit]);
})
.then(function(commitOid) {
return repository.getCommit(commitOid);
})
.then(function(commit) {
ret.ourCommit = commit;
return NodeGit.Reset.default(repository, initialCommit, ourFileName);
})
.then(function() {
return addFileToIndex(repository, theirFileName);
})
.then(function(oid) {
assert.equal(oid.toString(),
"be5f0fd38a39a67135ad68921c93cd5c17fefb3d");

return repository.createCommit(theirBranch.name(), theirSignature,
theirSignature, "they made a commit", oid, [initialCommit]);
})
.then(function(commitOid) {
return repository.getCommit(commitOid);
})
.then(function(commit) {
ret.theirCommit = commit;
return NodeGit.Reset.default(repository, initialCommit, theirFileName);
})
.then(function() {
return Promise.all([
fse.remove(path.join(repoWorkDir, ourFileName)),
fse.remove(path.join(repoWorkDir, theirFileName))
]);
})
.then(function() {
if (checkoutOurs) {
var opts = {
checkoutStrategy: NodeGit.Checkout.STRATEGY.FORCE
};

return repository.checkoutBranch(ourBranchName, opts);
}
})
.then(function() {
return ret;
});
}

it("can cherrypick a commit onto the index", function() {
var repo = this.repository;
var workDirPath = repo.workdir();
var repoInfo;

return setupBranches(repo, true)
.then(function(info) {
repoInfo = info;

assert(!fse.existsSync(path.join(workDirPath, repoInfo.theirFileName)),
repoInfo.theirFileName + " shouldn't exist");

var promise = Cherrypick.cherrypick(repo, repoInfo.theirCommit, {});
assert(promise.then);
return promise;
})
.then(function() {
assert(fse.existsSync(path.join(workDirPath, repoInfo.theirFileName)),
repoInfo.theirFileName + " should exist");
});
});

it("can cherrypick a commit onto another specified commit", function() {
var repo = this.repository;
var workDirPath = repo.workdir();
var repoInfo;

return setupBranches(repo)
.then(function(info) {
repoInfo = info;

assert(!fse.existsSync(path.join(workDirPath, repoInfo.ourFileName)),
repoInfo.ourFileName + " shouldn't exist");
assert(!fse.existsSync(path.join(workDirPath, repoInfo.theirFileName)),
repoInfo.theirFileName + " shouldn't exist");

var promise = Cherrypick.commit(repo, repoInfo.theirCommit,
repoInfo.ourCommit, 0, {});
assert(promise.then);
return promise;
})
.then(function(index) {
assert(index);
index.write();

return index.writeTreeTo(repo);
})
.then(function(oid) {
return repo.getTree(oid);
})
.then(function(tree) {
var opts = {
checkoutStrategy: NodeGit.Checkout.STRATEGY.FORCE
};

return NodeGit.Checkout.tree(repo, tree, opts);
})
.then(function() {
assert(fse.existsSync(path.join(workDirPath, repoInfo.ourFileName)),
repoInfo.ourFileName + " should exist");
assert(fse.existsSync(path.join(workDirPath, repoInfo.theirFileName)),
repoInfo.theirFileName + " should exist");
});
});

it("can cherrypick a stash to apply it", function() {
var repo = this.repository;
var workDirPath = repo.workdir();
var repoInfo;
var cherrypickOid;

var addedContent = "\nIt makes things E-Z!";

return setupBranches(repo, true)
.then(function(info) {
repoInfo = info;

return repo.getStatus();
})
.then(function(statuses) {
assert.equal(statuses.length, 0);

return fse.writeFile(path.join(workDirPath, repoInfo.ourFileName),
repoInfo.ourFileContent + addedContent);
})
.then(function() {
return repo.getStatus();
})
.then(function(statuses) {
assert.equal(statuses.length, 1);

return NodeGit.Stash.save(repo, repoInfo.ourSignature, "our stash", 0);
})
.then(function(oid) {
cherrypickOid = oid;

return fse.readFile(path.join(workDirPath, repoInfo.ourFileName));
})
.then(function(fileContent) {
assert.equal(fileContent, repoInfo.ourFileContent);

return repo.getStatus();
})
.then(function(statuses) {
assert.equal(statuses.length, 0);

return repo.getCommit(cherrypickOid);
})
.then(function(commit) {
var opts = {
mainline: 1
};

return Cherrypick.cherrypick(repo, commit, opts);
})
.then(function() {
return repo.getStatus();
})
.then(function(statuses) {
assert.equal(statuses.length, 1);

return fse.readFile(path.join(workDirPath, repoInfo.ourFileName));
})
.then(function(fileContent) {
assert.equal(fileContent, repoInfo.ourFileContent + addedContent);
});
});
});

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