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node-red/red/runtime/storage/localfilesystem/projects/git/index.js

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/**
* Copyright JS Foundation and other contributors, http://js.foundation
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
**/
var when = require('when');
var exec = require('child_process').exec;
var spawn = require('child_process').spawn;
var authResponseServer = require('./authServer').ResponseServer;
var sshResponseServer = require('./authServer').ResponseSSHServer;
var clone = require('clone');
var path = require("path");
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var gitCommand = "git";
var gitVersion;
var log;
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function runGitCommand(args,cwd,env) {
log.trace(gitCommand + JSON.stringify(args));
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return when.promise(function(resolve,reject) {
args.unshift("credential.helper=")
args.unshift("-c");
var child = spawn(gitCommand, args, {cwd:cwd, detached:true, env:env});
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var stdout = "";
var stderr = "";
child.stdout.on('data', function(data) {
stdout += data;
});
child.stderr.on('data', function(data) {
stderr += data;
});
child.on('close', function(code) {
if (code !== 0) {
var err = new Error(stderr);
err.stdout = stdout;
err.stderr = stderr;
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if (/fatal: could not read Username/.test(stderr)) {
err.code = "git_auth_failed";
} else if(/HTTP Basic: Access denied/.test(stderr)) {
err.code = "git_auth_failed";
} else if(/Permission denied \(publickey\)/.test(stderr)) {
err.code = "git_auth_failed";
} else if(/Connection refused/.test(stderr)) {
err.code = "git_connection_failed";
} else if (/commit your changes or stash/.test(stderr)) {
err.code = "git_local_overwrite";
} else if (/CONFLICT/.test(err.stdout)) {
err.code = "git_pull_merge_conflict";
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} else if (/not fully merged/.test(stderr)) {
err.code = "git_delete_branch_unmerged";
} else if (/remote .* already exists/.test(stderr)) {
err.code = "git_remote_already_exists";
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}
return reject(err);
}
resolve(stdout);
});
});
}
function runGitCommandWithAuth(args,cwd,auth) {
return authResponseServer(auth).then(function(rs) {
var commandEnv = clone(process.env);
commandEnv.GIT_ASKPASS = path.join(__dirname,"node-red-ask-pass.sh");
commandEnv.NODE_RED_GIT_NODE_PATH = process.execPath;
commandEnv.NODE_RED_GIT_SOCK_PATH = rs.path;
commandEnv.NODE_RED_GIT_ASKPASS_PATH = path.join(__dirname,"authWriter.js");
return runGitCommand(args,cwd,commandEnv).finally(function() {
rs.close();
});
})
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}
function runGitCommandWithSSHCommand(args,cwd,auth) {
return sshResponseServer(auth).then(function(rs) {
var commandEnv = clone(process.env);
commandEnv.SSH_ASKPASS = path.join(__dirname,"node-red-ask-pass.sh");
commandEnv.DISPLAY = "dummy:0";
commandEnv.NODE_RED_GIT_NODE_PATH = process.execPath;
commandEnv.NODE_RED_GIT_SOCK_PATH = rs.path;
commandEnv.NODE_RED_GIT_ASKPASS_PATH = path.join(__dirname,"authWriter.js");
commandEnv.GIT_SSH_COMMAND = "ssh -i " + auth.key_path + " -F /dev/null";
// console.log('commandEnv:', commandEnv);
return runGitCommand(args,cwd,commandEnv).finally(function() {
rs.close();
});
})
}
function cleanFilename(name) {
if (name[0] !== '"') {
return name;
}
return name.substring(1,name.length-1);
}
function parseFilenames(name) {
var re = /([^ "]+|(".*?"))($| -> ([^ ]+|(".*"))$)/;
var m = re.exec(name);
var result = [];
if (m) {
result.push(cleanFilename(m[1]));
if (m[4]) {
result.push(cleanFilename(m[4]));
}
}
return result;
}
function getBranchInfo(localRepo) {
return runGitCommand(["status","--porcelain","-b"],localRepo).then(function(output) {
var lines = output.split("\n");
var unknownDirs = [];
var branchLineRE = /^## (.+?)($|\.\.\.(.+?)($| \[(ahead (\d+))?.*?(behind (\d+))?\]))/m;
var m = branchLineRE.exec(output);
var result = {}; //commits:{}};
if (m) {
result.local = m[1];
if (m[3]) {
result.remote = m[3];
}
// if (m[6] !== undefined) {
// result.commits.ahead = parseInt(m[6]);
// }
// if (m[8] !== undefined) {
// result.commits.behind = parseInt(m[8]);
// }
}
return result;
});
}
function getStatus(localRepo) {
// parseFilename('"test with space"');
// parseFilename('"test with space" -> knownFile.txt');
// parseFilename('"test with space" -> "un -> knownFile.txt"');
var result = {
files: {},
commits: {},
branches: {}
}
return runGitCommand(['rev-list', 'HEAD', '--count'],localRepo).then(function(count) {
result.commits.total = parseInt(count);
}).then(function() {
return runGitCommand(["ls-files","--cached","--others","--exclude-standard"],localRepo).then(function(output) {
var lines = output.split("\n");
lines.forEach(function(l) {
if (l==="") {
return;
}
var fullName = cleanFilename(l);
// parseFilename(l);
var parts = fullName.split("/");
var p = result.files;
var name;
for (var i = 0;i<parts.length-1;i++) {
var name = parts.slice(0,i+1).join("/")+"/";
if (!p.hasOwnProperty(name)) {
p[name] = {
type:"d"
}
}
}
result.files[fullName] = {
type: /\/$/.test(fullName)?"d":"f"
}
})
return runGitCommand(["status","--porcelain","-b"],localRepo).then(function(output) {
var lines = output.split("\n");
var unknownDirs = [];
var branchLineRE = /^## (.+?)($|\.\.\.(.+?)($| \[(ahead (\d+))?.*?(behind (\d+))?\]))/;
lines.forEach(function(line) {
if (line==="") {
return;
}
if (line[0] === "#") {
var m = branchLineRE.exec(line);
if (m) {
result.branches.local = m[1];
if (m[3]) {
result.branches.remote = m[3];
result.commits.ahead = 0;
result.commits.behind = 0;
}
if (m[6] !== undefined) {
result.commits.ahead = parseInt(m[6]);
}
if (m[8] !== undefined) {
result.commits.behind = parseInt(m[8]);
}
}
return;
}
var status = line.substring(0,2);
var fileName;
var names;
if (status !== '??') {
names = parseFilenames(line.substring(3));
} else {
names = [cleanFilename(line.substring(3))];
}
fileName = names[0];
if (names.length > 1) {
fileName = names[1];
}
// parseFilename(fileName);
if (fileName.charCodeAt(0) === 34) {
fileName = fileName.substring(1,fileName.length-1);
}
if (result.files.hasOwnProperty(fileName)) {
result.files[fileName].status = status;
} else {
result.files[fileName] = {
type: "f",
status: status
};
}
if (names.length > 1) {
result.files[fileName].oldName = names[0];
}
if (status === "??" && fileName[fileName.length-1] === '/') {
unknownDirs.push(fileName);
}
})
var allFilenames = Object.keys(result.files);
allFilenames.forEach(function(f) {
var entry = result.files[f];
if (!entry.hasOwnProperty('status')) {
unknownDirs.forEach(function(uf) {
if (f.startsWith(uf)) {
entry.status = "??"
}
});
}
})
// console.log(files);
return result;
})
})
})
}
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function parseLog(log) {
var lines = log.split("\n");
var currentCommit = {};
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var commits = [];
lines.forEach(function(l) {
if (l === "-----") {
commits.push(currentCommit);
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currentCommit = {}
return;
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}
var m = /^(.*): (.*)$/.exec(l);
if (m) {
if (m[1] === 'refs' && m[2]) {
currentCommit[m[1]] = m[2].split(",").map(function(v) { return v.trim() });
} else {
if (m[1] === 'parents') {
currentCommit[m[1]] = m[2].split(" ");
} else {
currentCommit[m[1]] = m[2];
}
}
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}
});
return commits;
}
function getRemotes(cwd) {
return runGitCommand(['remote','-v'],cwd).then(function(output) {
var result;
if (output.length > 0) {
result = {};
var remoteRE = /^(.+)\t(.+) \((.+)\)$/gm;
var m;
while ((m = remoteRE.exec(output)) !== null) {
result[m[1]] = result[m[1]]||{};
result[m[1]][m[3]] = m[2];
}
}
return result;
})
}
function getBranches(cwd, remote) {
var args = ['branch','-vv','--no-color'];
if (remote) {
args.push('-r');
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}
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var branchRE = /^([ \*] )(\S+) +(\S+)(?: \[(\S+?)(?:: (?:ahead (\d+)(?:, )?)?(?:behind (\d+))?)?\])? (.*)$/;
return runGitCommand(args,cwd).then(function(output) {
var branches = [];
var lines = output.split("\n");
branches = lines.map(function(l) {
var m = branchRE.exec(l);
var branch = null;
if (m) {
branch = {
name: m[2],
remote: m[4],
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status: {
ahead: m[5]||0,
behind: m[6]||0,
},
commit: {
sha: m[3],
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subject: m[7]
}
}
if (m[1] === '* ') {
branch.current = true;
}
}
return branch;
}).filter(function(v) { return !!v && v.commit.sha !== '->' });
return {branches:branches};
})
}
function getBranchStatus(cwd,remoteBranch) {
var commands = [
// #commits master ahead
runGitCommand(['rev-list', 'HEAD','^'+remoteBranch, '--count'],cwd),
// #commits master behind
runGitCommand(['rev-list', '^HEAD',remoteBranch, '--count'],cwd)
];
return when.all(commands).then(function(results) {
return {
commits: {
ahead: parseInt(results[0]),
behind: parseInt(results[1])
}
}
})
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}
function addRemote(cwd,name,options) {
var args = ["remote","add",name,options.url]
return runGitCommand(args,cwd);
}
function removeRemote(cwd,name) {
var args = ["remote","remove",name];
return runGitCommand(args,cwd);
}
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module.exports = {
init: function(_settings,_runtime) {
log = _runtime.log
return new Promise(function(resolve,reject) {
runGitCommand(["--version"]).then(function(output) {
var m = / (\d\S+)/.exec(output);
gitVersion = m[1];
resolve(gitVersion);
}).catch(function(err) {
resolve(null);
});
});
},
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initRepo: function(cwd) {
return runGitCommand(["init"],cwd);
},
setUpstream: function(cwd,remoteBranch) {
var args = ["branch","--set-upstream-to",remoteBranch];
return runGitCommand(args,cwd);
},
pull: function(cwd,remote,branch,auth) {
var args = ["pull"];
if (remote && branch) {
args.push(remote);
args.push(branch);
}
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var promise;
if (auth) {
if ( auth.key_path ) {
promise = runGitCommandWithSSHCommand(args,cwd,auth);
}
else {
promise = runGitCommandWithAuth(args,cwd,auth);
}
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} else {
promise = runGitCommand(args,cwd)
}
return promise.catch(function(err) {
if (/CONFLICT/.test(err.stdout)) {
var e = new Error("NLS: pull failed - merge conflict");
e.code = "git_pull_merge_conflict";
throw e;
} else if (/Please commit your changes or stash/.test(err.message)) {
var e = new Error("NLS: Pull failed - local changes would be overwritten");
e.code = "git_pull_overwrite";
throw e;
}
throw err;
});
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},
push: function(cwd,remote,branch,setUpstream, auth) {
var args = ["push"];
if (branch) {
if (setUpstream) {
args.push("-u");
}
args.push(remote);
args.push("HEAD:"+branch);
} else {
args.push(remote);
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}
args.push("--porcelain");
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var promise;
if (auth) {
if ( auth.key_path ) {
promise = runGitCommandWithSSHCommand(args,cwd,auth);
}
else {
promise = runGitCommandWithAuth(args,cwd,auth);
}
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} else {
promise = runGitCommand(args,cwd)
}
return promise.catch(function(err) {
if (err.code === 'git_error') {
if (/^!.*non-fast-forward/m.test(err.stdout)) {
err.code = 'git_push_failed';
}
throw err;
}
});
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},
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clone: function(remote, auth, cwd) {
var args = ["clone",remote.url];
if (remote.name) {
args.push("-o");
args.push(remote.name);
}
if (remote.branch) {
args.push("-b");
args.push(remote.branch);
}
args.push(".");
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if (auth) {
if ( auth.key_path ) {
return runGitCommandWithSSHCommand(args,cwd,auth);
}
else {
return runGitCommandWithAuth(args,cwd,auth);
}
} else {
return runGitCommand(args,cwd);
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}
},
getStatus: getStatus,
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getFile: function(cwd, filePath, treeish) {
var args = ["show",treeish+":"+filePath];
return runGitCommand(args,cwd);
},
getFiles: function(cwd) {
return getStatus(cwd).then(function(status) {
return status.files;
})
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},
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revertFile: function(cwd, filePath) {
var args = ["checkout",filePath];
return runGitCommand(args,cwd);
},
stageFile: function(cwd,file) {
var args = ["add"];
if (Array.isArray(file)) {
args = args.concat(file);
} else {
args.push(file);
}
return runGitCommand(args,cwd);
},
unstageFile: function(cwd, file) {
var args = ["reset","--"];
if (file) {
args.push(file);
}
return runGitCommand(args,cwd);
},
commit: function(cwd, message, gitUser) {
var args = ["commit","-m",message];
var env;
if (gitUser && gitUser['name'] && gitUser['email']) {
args.unshift('user.name="'+gitUser['name']+'"');
args.unshift('-c');
args.unshift('user.email="'+gitUser['email']+'"');
args.unshift('-c');
}
return runGitCommand(args,cwd,env);
},
getFileDiff(cwd,file,type) {
var args = ["diff"];
if (type === "tree") {
// nothing else to do
} else if (type === "index") {
args.push("--cached");
}
args.push(file);
return runGitCommand(args,cwd);
},
fetch: function(cwd,remote,auth) {
var args = ["fetch",remote];
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if (auth) {
if ( auth.key_path ) {
return runGitCommandWithSSHCommand(args,cwd,auth);
}
else {
return runGitCommandWithAuth(args,cwd,auth);
}
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} else {
return runGitCommand(args,cwd);
}
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},
getCommits: function(cwd,options) {
var args = ["log", "--format=sha: %H%nparents: %p%nrefs: %D%nauthor: %an%ndate: %ct%nsubject: %s%n-----"];
var limit = parseInt(options.limit) || 20;
args.push("-n "+limit);
var before = options.before;
if (before) {
args.push(before);
}
var commands = [
runGitCommand(['rev-list', 'HEAD', '--count'],cwd),
runGitCommand(args,cwd).then(parseLog)
];
return when.all(commands).then(function(results) {
var result = results[0];
result.count = results[1].length;
result.before = before;
result.commits = results[1];
return {
count: results[1].length,
commits: results[1],
before: before,
total: parseInt(results[0])
};
})
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},
getCommit: function(cwd,sha) {
var args = ["show",sha];
return runGitCommand(args,cwd);
},
abortMerge: function(cwd) {
return runGitCommand(['merge','--abort'],cwd);
},
getRemotes: getRemotes,
getRemoteBranch: function(cwd) {
return runGitCommand(['rev-parse','--abbrev-ref','--symbolic-full-name','@{u}'],cwd).catch(function(err) {
if (/no upstream configured for branch/.test(err.message)) {
return null;
}
throw err;
})
},
getBranches: getBranches,
getBranchInfo: getBranchInfo,
checkoutBranch: function(cwd, branchName, isCreate) {
var args = ['checkout'];
if (isCreate) {
args.push('-b');
}
args.push(branchName);
return runGitCommand(args,cwd);
},
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deleteBranch: function(cwd, branchName, isRemote, force) {
if (isRemote) {
throw new Error("Deleting remote branches not supported");
}
var args = ['branch'];
if (force) {
args.push('-D');
} else {
args.push('-d');
}
args.push(branchName);
return runGitCommand(args, cwd);
},
getBranchStatus: getBranchStatus,
addRemote: addRemote,
removeRemote: removeRemote
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}