adding mermaid packages

node_modules/gitbook-cli/lib/registry.js

@@ -0,0 +1,110 @@
+var Q = require('q');
+var fs = require('fs-extra');
+var npmi = require('npmi');
+var npm = require('npm');
+var tmp = require('tmp');
+var _ = require('lodash');
+var path = require('path');
+
+var tags = require('./tags');
+var config = require('./config');
+
+// Initialize NPM before usage
+var initNPM = _.memoize(function() {
+    return Q.nfcall(npm.load, {
+        silent: true,
+        loglevel: 'silent'
+    });
+});
+
+// Return a list of versions available in the registry (npm)
+function availableVersions() {
+    return initNPM()
+    .then(function() {
+        return Q.nfcall(npm.commands.view, ['gitbook', 'versions', 'dist-tags'], true);
+    })
+    .then(function(result) {
+        result = _.chain(result).values().first().value();
+        result = {
+            versions: _.chain(result.versions)
+                .filter(function(v) {
+                    return tags.isValid(v);
+                })
+                .sort(tags.sort)
+                .value(),
+            tags: _.chain(result['dist-tags'])
+                .omit(function(tagVersion, tagName) {
+                    return !tags.isValid(tagVersion);
+                })
+                .value()
+        };
+
+        if (result.versions.length == 0) throw new Error('No valid version on the NPM registry');
+        return result;
+    });
+}
+
+// Resolve a version name or tag to an installable absolute version
+function resolveVersion(version) {
+    var _version = version;
+
+    return availableVersions()
+    .then(function(available) {
+        // Resolve if tag
+        if (available.tags[version]) version = available.tags[version];
+
+        version = _.find(available.versions, function(v) {
+            return tags.satisfies(v, version, {
+                // Tag is resolved from npm dist-tags
+                acceptTagCondition: false
+            });
+        });
+
+        // Check version
+        if (!version) throw new Error('Invalid version or tag "'+_version+'", see available using "gitbook ls-remote"');
+        return version;
+    });
+}
+
+// Install a specific version of gitbook
+function installVersion(version, forceInstall) {
+    return resolveVersion(version)
+    .then(function(_version) {
+        version = _version;
+        return Q.nfcall(tmp.dir.bind(tmp));
+    })
+    .spread(function(tmpDir) {
+        var options = {
+            name: 'gitbook',
+            version: version,
+            path: tmpDir,
+            forceInstall: !!forceInstall,
+            npmLoad: {
+                loglevel: 'silent',
+                loaded: false,
+                prefix: tmpDir
+            }
+        };
+        console.log('Installing GitBook', version);
+        return Q.nfcall(npmi.bind(npmi), options).thenResolve(tmpDir);
+    })
+    .then(function(tmpDir) {
+        var gitbookRoot = path.resolve(tmpDir, 'node_modules/gitbook');
+        var packageJson = fs.readJsonSync(path.resolve(gitbookRoot, 'package.json'));
+        var version = packageJson.version;
+
+        var outputFolder = path.resolve(config.VERSIONS_ROOT, version);
+
+        if (!tags.isValid(version)) throw 'Invalid GitBook version, should satisfies '+config.GITBOOK_VERSION;
+
+        // Copy to the install folder
+        return Q.nfcall(fs.copy.bind(fs), gitbookRoot, outputFolder)
+        .thenResolve(version);
+    });
+}
+
+module.exports = {
+    versions: availableVersions,
+    resolve: resolveVersion,
+    install: installVersion
+};