May 31

I run into a problem where my karma run hangs (see grunt watch hangs on karma:unit:run task). After digging into it I found out that it relates to problem #1 in post etc/hosts bug and dns resolution. Upgrading to 10.8 damaged etc/hosts. DNS resolution of localhost was extremely slow.

To fix this you could use 127.0.0.1 instead of localhost or split lines in etc/hosts

Instead of

127.0.0.1 strug-imac.hypoport.local localhost

split them into single lines

127.0.0.1 localhost
127.0.0.1 strug-imac.hypoport.local

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Jun 13

Currently I’m setting up a new SSD. One of my first installations is homebrew, a must have IMO.

I have two users. Allen the admin and Stan the standard user. Stan is a developer who works most of his time inside our company network. Allen is responsible for installing apps and so on. For security reasons Stan don’t want to be admin. Nevertheless Stan wants to use homebrew, he loves it too. Allen don’t want to have two homebrew installations so that he allows Stan to use his homebrew.

Update 2013-05-31: considering /Library/Caches/Homebrew

Setup

  1. Create a group brew and add Stan
  2. brew doctor (Allen checks if he installed brew correctly)
  3. sudo chgrp -R brew /usr/local (Change the group of homebrew installation directory)
  4. sudo chmod -R g+w /usr/local (Allow group members to write inside this directory)
  5. sudo chgrp -R brew /Library/Caches/Homebrew (Change the group of homebrew cache directory)
  6. sudo chmod -R g+w /Library/Caches/Homebrew (Allow group members to write inside this directory)
  7. brew doctor (Stan checks if he can use homebrew)
  8. We are done!

Detailed Setup

Create a group brew and add Stan
One way to create a group brew is to open the System Preferences and select Users & Groups. Unlock this screen and press the lower left +. Select the account type Group and name it brew. After creating this group add Allen and Stan.

Allen checks if he installed brew correctly

allen$ brew doctor
Your system is raring to brew.

Change the group of homebrew installation directory

allen$ sudo chgrp -R brew /usr/local
Password:
allen$ ls -la /usr/local
total 16
drwxrwxr-x 8 root brew 272 Jun 12 22:31 .
drwxr-xr-x@ 13 root wheel 442 Jun 12 22:36 ..
-rw-r--r-- 1 admin brew 159 Jun 12 22:28 .gitignore
drwxr-xr-x 2 admin brew 68 Jun 12 22:33 Cellar
drwxr-xr-x 6 admin brew 204 Jun 12 22:28 Library
-rw-r--r-- 1 admin brew 789 Jun 12 22:28 README.md
drwxr-xr-x 3 admin brew 102 Jun 12 22:28 bin
drwxr-xr-x 3 admin brew 102 Jun 12 22:28 share

Allow group members to write inside this directory

allen$ sudo chmod -R g+w /usr/local
allen$ ls -la /usr/local
total 16
drwxrwxr-x 8 root brew 272 Jun 12 22:31 .
drwxr-xr-x@ 13 root wheel 442 Jun 12 22:36 ..
-rw-rw-r-- 1 admin brew 159 Jun 12 22:28 .gitignore
drwxrwxr-x 2 admin brew 68 Jun 12 22:33 Cellar
drwxrwxr-x 6 admin brew 204 Jun 12 22:28 Library
-rw-rw-r-- 1 admin brew 789 Jun 12 22:28 README.md
drwxrwxr-x 3 admin brew 102 Jun 12 22:28 bin
drwxrwxr-x 3 admin brew 102 Jun 12 22:28 share

Change the homebrew cache directory accordingly

sudo chgrp -R brew /Library/Caches/Homebrew
sudo chmod -R g+w /Library/Caches/Homebrew

Stan checks if he can use homebrew
In my case Allen and Stan is one person, so that a simple login do the trick.

allen$ login stan
Password:
stan$ brew doctor
Your system is raring to brew.

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Sep 10

Homebrew is my favorite package manager. If you installed Xcode just for brew than this post might be interesting for you.

Kenneth Reitz created a GCC Installer for OSX without Xcode! Thank you. This package is about 500 MB. Compared to Xcode you save at least 1,5 GB on your SSD.

So let’s go to work:

  • Remove Xcode
  • sudo /Developer/Library/uninstall-devtools --mode=all

    This will delete Xcode. For more details see John’s post

  • Download and install GCC for Mac without Xcode
  • Currently 10.6 and 10.7 packages are available at https://github.com/kennethreitz/osx-gcc-installer/downloads

  • Install brew (see http://mxcl.github.com/homebrew/)
  • /usr/bin/ruby <(curl -fsSkL raw.github.com/mxcl/homebrew/go)
  • You're done
  • You can verify your success with brew doctor.

Caution:
You don't need Xcode for formulas like gradle, groovy, maven, tomcat etc. Nevertheless some formulas will require Xcode!

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May 12

I’m looking for a way to identify if an application on my Mac stopped. I couldn’t find anything, so it was time to write my first AppleScript:

set network_connect_is_running to is_running("Network Connect")

if network_connect_is_running then
	repeat until network_connect_is_running is false
		delay 10 -- wait some seconds
		set network_connect_is_running to is_running("Network Connect")
	end repeat
	-- application stopped, so run a dummy app so that marcopolo can switch context
	tell application "NetworkConnectStopped" to activate
end if

on is_running(appName)
	tell application "System Events" to (name of processes) contains appName
end is_running

The code is quiet simple. Line 12-14 defines a function which checks if application appName is running. Line 01 calls this function and checks if the application “Network Connect” is running. The result is stored in the variable network_connect_is_running. Only if “Network Connect” is running (line 03) I want to start my listener. The listener (loop line 04-07) checks every 10 seconds if the application is still running. If not, the loop ends and I can start my trigger application “NetworkConnectStopped”.

So what is this all for?

I use MarcoPolo to switch my network connections. I use three contexts:
- home
- homeOffice (VPN)
- work
The contexts differ in things like proxy, printer, mounts.

The problem: MarcoPolo has no rule “Not Running Applications”

When I’m at home and start my VPN (Network Connect) I use this application to switch automatically to context “homeOffice”. When I finished my home office session and quit “Network Connect” I want to switch automatically to context “home” again. This can not be done with MarcoPolo so far. Now the above script comes into play. I stored this script as an application and start this listener when switching to context “homeOffice”. When I quit “Network Connect”, my listener recognizes this and starts the application “NetworkConnectStopped”. This application is created with the Automator and contains nothing but a “Pause” of 6 seconds. One more than the default MarcoPolo rule update interval. The last step is to add a rule “Running Application” to MarcoPolo which switches to context “home” when application “NetworkConnectStopped” is running.

Here are my MarcoPolo rules:

And here are my actions:

If you have suggestions or need more details feel free to comment.

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Mar 17

If you are using Homebrew and want to use the maven formular you have to delete the symbolic link /usr/bin/mvn.

Thereby you use your homebrew maven installation instead of the shipping version of OSX.

The executable is located at /usr/local/bin/ which should be part of your path already.
The maven package itself can be found at /usr/local/Cellar/maven/3.0.3/libexec. This will be interesting for your IDE, which often wants a pointer to your maven home directory. I created a symlink current so that I can change the version to use at the command line without the need to configure my IDE again.

[/usr/local/Cellar/maven] master@struggy$ sudo ln -s 3.0.3/libexec/ current

That’s it.

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Oct 11

I found Fluid, a little helper that converts a URL into an application. E.g. I created an app for Gmail:

Oct 09

One very useful IntelliJ IDEA feature is the Multi Clipboard (Cmd-Shift-V). Outside IDEA you can use Clipmenu.

Keep in mind to change it’s default Shortcut Cmd-Shift-V to e.g. Ctrl-Shift-V, so that you don’t overlay IDEA’s shortcut.

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Oct 05

I’m using Google Reader for my feeds. At work I want to access some private feeds. My plan was to have a reader that can handle private feeds and can sync with Google.

I tried Gruml and NetNewsWire that both sync with Google. Unfortunately both can’t handle private feeds. Gruml is beta and you see that. Don’t know what I have done wrong, but Gruml stop working. NetNewsWire is not very informative. I can create private feeds, but I don’t know if it is syncing or not. The refresh button didn’t work as expected. The shortest automatic sync interval is 30min!

My peers using Vienna, now I know why:) With Vienna I can easily add a private feed and see if it is syncing or not. It can’t sync with Google.

So I’m still looking for a tool that can handle my two use cases: Private Feeds and Google Reader Sync.

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Oct 03

I have my MBP for more than 4 month and today I found out that there is a forward delete (⌦) :)

Symbol Key Description
delete This is the delete key at the upper right corner. It works like backspace in Windows and Linux. I’m a Mac-Newbie so I expected a forward delete first
Fn+⌫ ⌦ is not available on laptops. You can emulate it on a MacBook with Fn+⌫

Men, why it took me so long?

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Oct 03

This time I’m looking for a RSS reader that can sync with Google reader. After some minutes I found NetNewsWire and Gruml. First I tried NNW because it is not Beta. Everything is fine, except that I can’t use the Google features like sharing items, following shared items of friends, star items, .. Next, I installed Gruml. Voila. All the Google features are available. It is Beta, so far no crash or other problems. I’ll try it.

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preload preload preload