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build/node_modules/node-pre-gyp/lib/publish.js

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+"use strict";
+
+module.exports = exports = publish;
+
+exports.usage = 'Publishes pre-built binary (requires aws-sdk)';
+
+var fs = require('fs');
+var path = require('path');
+var log = require('npmlog');
+var versioning = require('./util/versioning.js');
+var s3_setup = require('./util/s3_setup.js');
+var existsAsync = fs.exists || path.exists;
+var url = require('url');
+var config = require('rc')("node_pre_gyp",{acl:"public-read"});
+
+function publish(gyp, argv, callback) {
+    var AWS = require("aws-sdk");
+    var package_json = JSON.parse(fs.readFileSync('./package.json'));
+    var opts = versioning.evaluate(package_json, gyp.opts);
+    var tarball = opts.staged_tarball;
+    existsAsync(tarball,function(found) {
+        if (!found) {
+            return callback(new Error("Cannot publish because " + tarball + " missing: run `node-pre-gyp package` first"));
+        }
+        log.info('publish', 'Detecting s3 credentials');
+        s3_setup.detect(opts.hosted_path,config);
+        var key_name = url.resolve(config.prefix,opts.package_name);
+        log.info('publish', 'Authenticating with s3');
+        AWS.config.update(config);
+        var s3 =  new AWS.S3();
+        var s3_opts = {  Bucket: config.bucket,
+                         Key: key_name
+                      };
+        var remote_package = 'https://' + s3_opts.Bucket + '.s3.amazonaws.com/' + s3_opts.Key;
+        log.info('publish', 'Checking for existing binary at ' + remote_package);
+        s3.headObject(s3_opts, function(err, meta){
+            if (meta) log.info('publish', JSON.stringify(meta));
+            if (err && err.code == 'NotFound') {
+                // we are safe to publish because
+                // the object does not already exist
+                log.info('publish', 'Preparing to put object');
+                var s3_put = new AWS.S3();
+                var s3_put_opts = {  ACL: config.acl,
+                                     Body: fs.createReadStream(tarball),
+                                     Bucket: config.bucket,
+                                     Key: key_name
+                                  };
+                log.info('publish', 'Putting object');
+                try {
+                    s3_put.putObject(s3_put_opts, function(err, resp){
+                        log.info('publish', 'returned from putting object');
+                        if(err) {
+                           log.info('publish', 's3 putObject error: "' + err + '"');
+                           return callback(err);
+                        }
+                        if (resp) log.info('publish', 's3 putObject response: "' + JSON.stringify(resp) + '"');
+                        log.info('publish', 'successfully put object');
+                        console.log('['+package_json.name+'] published to ' + remote_package);
+                        return callback();
+                    });
+              } catch (err) {
+                   log.info('publish', 's3 putObject error: "' + err + '"');
+                   return callback(err);
+              }
+            } else if (err) {
+                log.info('publish', 's3 headObject error: "' + err + '"');
+                return callback(err);
+            } else {
+                log.error('publish','Cannot publish over existing version');
+                log.error('publish',"Update the 'version' field in package.json and try again");
+                log.error('publish','If the previous version was published in error see:');
+                log.error('publish','\t node-pre-gyp unpublish');
+                return callback(new Error('Failed publishing to ' + remote_package));
+            }
+        });
+    });
+}