Detect if system is runing GM or IM, add info to RocketChat.Info and update setting to alert user

packages/rocketchat-file/file.server.coffee

@@ -4,12 +4,50 @@ fs = Npm.require('fs')
 path = Npm.require('path')
 mkdirp = Npm.require('mkdirp')
 gm = Npm.require('gm')
+exec = Npm.require('child_process').exec
 
 # Fix problem with usernames being converted to object id
 Grid.prototype.tryParseObjectId = -> false
 
 RocketChatFile =
 	gm: gm
+	enabled: undefined
+	enable: ->
+		RocketChatFile.enabled = true
+		RocketChat.settings.updateOptionsById 'Accounts_AvatarResize', {alert: undefined}
+	disable: ->
+		RocketChatFile.enabled = false
+		RocketChat.settings.updateOptionsById 'Accounts_AvatarResize', {alert: 'The_image_resize_will_not_work_because_we_can_not_detect_ImageMagick_or_GraphicsMagick_installed_in_your_server'}
+
+
+exec 'gm version', Meteor.bindEnvironment (error, stdout, stderr) ->
+	if not error? and stdout.indexOf('GraphicsMagick') > -1
+		RocketChatFile.enable()
+
+		RocketChat.Info.GraphicsMagick =
+			enabled: true
+			version: stdout
+	else
+		RocketChat.Info.GraphicsMagick =
+			enabled: false
+
+	exec 'convert -version', Meteor.bindEnvironment (error, stdout, stderr) ->
+		if not error? and stdout.indexOf('ImageMagick') > -1
+			if RocketChatFile.enabled isnt true
+				# Enable GM to work with ImageMagick if no GraphicsMagick
+				RocketChatFile.gm = RocketChatFile.gm.subClass({imageMagick: true})
+				RocketChatFile.enable()
+
+			RocketChat.Info.ImageMagick =
+				enabled: true
+				version: stdout
+		else
+			if RocketChatFile.enabled isnt true
+				RocketChatFile.disable()
+
+			RocketChat.Info.ImageMagick =
+				enabled: false
+
 
 RocketChatFile.bufferToStream = (buffer) ->
 	bufferStream = new stream.PassThrough()

packages/rocketchat-file/package.js

@@ -8,11 +8,13 @@ Package.describe({
 Package.onUse(function(api) {
 	api.versionsFrom('1.0');
 
-	api.use(['coffeescript']);
+	api.use('rocketchat:lib');
+	api.use('rocketchat:version');
+	api.use('coffeescript');
 
-	api.addFiles('file.server.coffee', ['server']);
+	api.addFiles('file.server.coffee', 'server');
 
-	api.export(['RocketChatFile'], ['server']);
+	api.export('RocketChatFile', 'server');
 });
 
 Npm.depends({