parse-repo/index.js

Extract repository info from a git remote URI

var path = require('path');

function parseRemoteUri(inputUri) {
    // ignore any trailing modifiers, such as the ones supported
    // on npm uris (ex: git+ssh://git@github.com:npm/npm.git#v1.0.27)
    var uri = inputUri.replace(/#.+$/, '');

    var matches = null;

    // check if its an url with the following known format:
    // http://site.com/owner/project(.git)
    // any protocols are accepted, to support complex protocols
    // (ex. git+https://isaacs@github.com/npm/npm.git)
    var generalFormat = /^([^:]+):\/\/([^@]+@)?([^\/:]+)\/([^\/]+)\/([^\/]+)$/;

    if (matches = generalFormat.exec(uri)) {
        var owner = matches[4],
            project = matches[5].replace(/\.git$/, '');

        return {
            remote: inputUri,
            protocol: matches[1],
            host: matches[3],
            repository: owner+'/'+project,
            owner: owner,
            project: project
        };
    }

    // check if its an url with the following known format:
    // (ssh://)git@site.com:owner/project(.git)
    var gitKnownRemote = /^(([^:]+):\/\/)?git@([^:]+):([^\/]+)\/([^\/]+)$/;

    if (matches = gitKnownRemote.exec(uri)) {
        var owner = matches[4],
            project = matches[5].replace(/\.git$/, '');

        return {
            remote: inputUri,
            protocol: matches[2] || 'ssh',
            host: matches[3],
            repository: owner+'/'+project,
            owner: owner,
            project: project
        };
    }

    // check if its an uri with any protocol, host and path.
    // ex: ssh://user@other.host.com/~/repos/R.git
    var looseUriFormat = /^([^:]+):\/\/([^@]+@)?([^\/:]+)\/(.+)$/;

    if (matches = looseUriFormat.exec(uri)) {
        var repoPath = matches[4],
            project = path.basename(repoPath).replace(/\.git$/, '');

        return {
            remote: inputUri,
            protocol: matches[1],
            host: matches[3],
            repository: project,
            owner: null,
            project: project
        };
    }

    // the remote is a local path or an unknown url, just
    // return its repository name without the owner's info

    var dirName = path.basename(uri),
        repoName = dirName.replace(/\.git$/, '');

    return {
        remote: inputUri,
        protocol: 'file',
        host: 'localhost',
        owner: null,
        repository: repoName,
        project: repoName
    };
}

module.exports = parseRemoteUri;