Create a gist now

Instantly share code, notes, and snippets.

List git branches and last log line sorted by date of last commit
var spawn = require('child_process').spawn,
str = '',
logs = [];
var b = spawn('git', ['branch', '-r']);
b.stdout.on('data', function(data) { str += data; });
b.on('exit', function() {
var branches = str.split('\n')
.map(function(str) { return str.trim(); })
.filter(function(v) { return !!v; })
.map(function(branch) { return function(done) { getInfo(branch, done); } });
function getInfo(branch, done) {
var str = '',
l = spawn('git', ['log', '-1', branch]);
l.stdout.on('data', function(data) { str += data });
l.on('exit', function() {
var lines = str.split('\n'),
parts,
date;
var matched = lines.some(function(line) {
parts = /Date:\s+(.*)/.exec(line);
return !!(parts && parts[1]);
});
if(!matched) return done();
date = new Date(parts[1]);
logs.push({ date: date, log: str, branch: branch });
done();
});
}
// when done, show a summary
branches.push(function(done) {
var counts = {};
logs.forEach(function(item) {
var year = item.date.getFullYear(),
month = item.date.getMonth() +1;
counts[year] || (counts[year] = {});
if(counts[year][month]) {
counts[year][month]++;
} else {
counts[year][month] = 1;
}
});
var names = ['', 'Jan', 'Feb', 'Mar', 'Apr', 'May', 'Jun', 'Jul', 'Aug', 'Sep', 'Oct', 'Nov', 'Dec'];
Object.keys(counts).forEach(function(year) {
var months = counts[year];
Object.keys(months).forEach(function(month) {
var count = months[month];
console.log(names[parseInt(month, 10)]+' '+year + ': '+count);
});
});
done();
});
// when done, show a summary
branches.push(function(done) {
var users = {};
logs.forEach(function(item) {
var parts = item.branch.split('/');
if(parts.length > 2) {
if (users[parts[1]]) {
users[parts[1]]++;
} else {
users[parts[1]] = 1;
}
}
});
var leaderboard = []
Object.keys(users).forEach(function(user) {
leaderboard.push({ name: user, count: users[user] });
});
leaderboard.sort(function(a, b) { return b.count - a.count; })
.forEach(function(u) {
console.log(u.name +': '+u.count);
});
done();
});
// when done, sort logs by date
branches.push(function(done) {
logs.sort(function(a, b) { return a.date.getTime() - b.date.getTime(); })
.forEach(function(item) {
console.log('\n******** '+item.branch+'\n'+item.log);
});
done();
});
function run(callback) {
if (callback) {
callback(function() {
run(branches.shift());
});
}
}
run(branches.shift());
});
Sign up for free to join this conversation on GitHub. Already have an account? Sign in to comment