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npm.js
132 lines (119 loc) · 3.89 KB
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npm.js
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var Request = require('request');
var Step = require('step');
var Github = require('./github');
var Semver = require('semver');
var log = require('./log');
function sortVersions (a, b) {
if (Semver.gt(a, b)) { return -1; }
if (Semver.lt(a, b)) { return 1; }
return 0;
}
function findRepoUrl(data) {
var repo;
['repository', 'repositories', 'bugs', 'licenses'].forEach(function(branch){
if (!repo) {
var repoTree = data[branch];
if (repoTree) {
repo = repoTree.url || repoTree.web;
if (!repo) {
repoTree = repoTree[0];
repo = repoTree.url || repoTree.web;
}
}
}
});
return repo;
}
function versions(moduleName, cb) {
var v = [];
var url = 'http://search.npmjs.org/api/' + moduleName;
log.debug('requesting: ' + url);
Request({ uri: url }, function(err, response, body) {
log.debug('complete: ' + url);
var data, repo;
if (!err && body) {
try {
data = JSON.parse(body);
}
catch (e) {
err = new Error('Trouble with npm. A non-json response was returned: \n' + body);
}
if (!err) {
repo = findRepoUrl(data);
if (!repo && data && data.versions) {
Object.keys(data.versions).forEach(function(version) {
if (!repo) {
repo = findRepoUrl(data.versions[version]);
}
});
}
if (data && data.time) {
var time = data.time;
delete time.created;
delete time.modified;
var keys = Object.keys(time).sort(sortVersions);
keys.forEach(function(version){
v.push({
version: version,
date: new Date(time[version])
});
});
}
if (!repo) {
err = new Error('Author of module ' + moduleName + ' did not specify the code repository url.');
}
if ((!err && !repo) || (data && !v.length)) {
err = new Error('Unknown package: ' + moduleName);
}
}
}
cb(err, {
repo: repo,
versions: v
});
});
}
function changelog(packageName, cb) {
var Versions;
Step(function() {
versions(packageName, this);
},
function(err, data) {
if (err) { throw err; }
Versions = data.versions;
Github.changes(data, this);
},
function(err, data) {
var i;
var project;
if (data) {
project = data.project;
}
if (data && data.changes) {
if (data.changes[0].date > Versions[0].date) {
Versions.unshift({ version: 'Upcoming', date: data.changes[0].date});
}
data.changes.forEach(function(change){
//log('change', change);
if (change) {
for (i = Versions.length - 1; i > 0; i--) {
if (change.date < Versions[i].date) {
break;
}
}
Versions[i].changes = Versions[i].changes || [];
Versions[i].changes.push(change);
}
});
}
cb(err, {
project: project,
versions: Versions
} );
}
);
}
module.exports = {
versions: versions,
changelog: changelog
};