I’ve been collecting data regarding the battery life cycle of my Apple’s magic mouse and wireless keyboard. I thought it’d be good to post this data here so that you dear reader can draw your own conclusions about how long should the battery life last.

This is interesting data to look at because I like statistics and it’s good to analyze data. It helps you predict what to expect… Obviously the batteries’ lifespan changes according to how much time you spend using these devices. In my case I tend to use the computer 8 hours/day on average.

Just now I decided to search for a neat app ( Finch for Mac ) so that I can track the time I pass working on the computer. This will for sure give me more accurate data in the near future. For now I’ll have to take this data for granted…

Take a look at the following Google spreadsheet:

As you see the keyboard has a great autonomy and there were periods in which I didn’t work as much as I’d like on the computer because the mouse charges used to last 3 weeks. This denotes periods of inactivity. Now that I’m doing more intensive work the mouse battery lasts only 1.5 weeks. This is half the time previously taken to drain the battery.

For the record: I also own an Apple’s battery charger. Recharging the batteries is an easy task. Once more I’m contributing to the environment.

All these Apple devices are great IMHO as it’s the case with everything made by Apple!

The only “complaint” is that I think the mouse should have a greater autonomy. Maybe this will be the case with more recent technology iterations.

Motivated by this question at StackOverflow: RegExp PHP get text between multiple span tags, I decided to help.

Recently I got a Mac mini. I still hadn’t played with PHP on Mac and to debug my answer to that question I needed a way to test the code. So I thought: why not also give PHP a try on Mac OS since its my main OS today? Oh, good idea, go learn something new… :D

The first thing I did obviously was recurring to Google and searching for something that could help me get there.

I hit a pretty good tutorial to enable PHP on Mac at About.com written by Angela Bradley that gets to the point: How to Install PHP on a Mac. Along the way I had to solve only one minor thing described in the caveat section at the end of this post.

You see that the title of this post has the word installing (well I thought I had to install it – that was my first reaction), but in fact it could be the word enabling because PHP is an integral part of Mac OS X Snow Leopard and we just need to enable it as you’ll see soon.

Here we go. Follow these steps:

1 - Enabling the Web Server
PHP works hand in hand with a webserver. Mac OS already comes with Apache web server and so we just need to enable it. To do so, open System Preferences in the Dock. Then click the 'Sharing' icon in the Internet & Network section. Check the ‘Web Sharing’ box.

Figure 1 - Web Sharing option under the Sharing configuration in System Preferences

Now type this address in your browser: http://localhost/. You should get a message that reads: It works!

2 - Enabling PHP
PHP also comes bundled in Mac OS, but it’s disabled by default. To enable it we need to edit a hidden system file located in this path: /private/etc/apache2/httpd.conf.

I used BBEdit text editor to edit such a file (note that I marked the box Show hidden items in the screenshot below):

Figure 2 - Editing the hidden system file httpd.conf with BBEdit

Now within that file search for:

libexec/apache2/libphp5.so

Delete the character # in the start of the line so that that entire line should now read:

LoadModule php5_module          libexec/apache2/libphp5.so

Save the file.

3 - Testing the installation
There’s nothing better to test the PHP installation than using its own information. To accomplish this, write a one liner simple .php file named test.php with this content:

<?php phpinfo() ?>

Place this file inside your personal website folder. Mine is located in this path:

/Users/leniel/Sites/test.php

Now let’s test this page by typing its address in the browser:

http://192.168.1.103/~leniel/test.php

As you see, the address points to my personal website as seen in Figure 1.

When you run this simple .php page you should get something like this:

Figure 3 - Testing PHP installation with its own configuration’s information

If your PHP installation is OK, the test page will display PHP's information. If it displays the page code, you need to restart the Apache server.

You can restart Apache by entering the following in Terminal:

sudo apachectl restart

Try to reload the page again. Everything should work.

Well done!. Now you can play with PHP on your Mac computer and write some neat codez. :)

Caveat
When I tried to restart Apache server I got the following error:

ulimit: open files: cannot modify limit: Invalid argument

I resorted to this solution: Mac OS X 10.6.5 broke my apachectl

Last time I showed you how to Automate tasks in Mac OS with Automator. I used Automator to create a simple workflow that helps moving MP3 files to iTunes folder. Check that here.

Now I have another task to Automator.

This is the description of what I want to accomplish or the problem description if you prefer:

I often download some free legal MP3 files from the internet for evaluation, more specifically from Indie Rock Cafe (great great site by the way :D - check it out if you like Indie Rock music). I use IndieRockCafe mainly to discover bands that I’ve never heard about. It’s being a great experience so far. I’ve come to know some really good bands that, else I would never hear a song of theirs.

To download those MP3s I use DownThemAll that is a really nice piece of software that works beautifully with Firefox. I wrote about DownThemAll in Automate the download of a list of URLs/links. Although I didn’t write how to download only MP3 files with DownThemAll, this post gives you an idea about the purpose of DownThemAll. I’ll write about how to download only specific kind of files (MP3 in this case) using DownThemAll, but that’s another post. Probably I’ll detail this download process I’m mentioning here.

As I was telling you, I often do the same task, that is, I go to IndieRockCafe, click on DownThemAll icon in my Firefox toolbar and tada, the download of IndieRockCafe’s recently added MP3s just start. DownThemAll will download only page links that point to MP3 files saving these MP3 in a single folder called IndieRockCafe.

After the download I used to select all the files within that folder and drag and drop them inside an iTunes playlist called IndieRockCafe. iTunes is wise enough to tell me that some files are already part of the playlist and gives me the option to skip them adding only new files into that playlist. Doing so I always have a fresh playlist with the latest files of IndieRockCafe. It works, but it has a lot of manual steps.

Yesterday I thought: the above steps are a perfect fit to be automated with Automator.

Let’s create a workflow:

1 - Go to the Applications folder and select Automator.

2 - You’ll be presented with the following screen to choose a template for your workflow. Select Folder Action as the template.

Figure 1 - Types of templates available to create an Automator workflow (Folder Action)

3 - In Folder Action receives folders and files added to, select the folder you want. In my case it is the IndieRockCafe folder.

4 - Now select Music in Library list and then select Import Files into iTunes under the Actions list. Drag this action to the workflow area in the right.

5 - Select Existing playlist and the playlist you want the files to go to. As I wrote above I already have a Playlist called IndieRockCafe inside iTunes. So I selected it.

6 - Go to the File menu and select Save. Give the workflow an appropriate name, e.g. IndieRockCafe.

The following screenshot shows the Folder Action workflow configured:

Figure 2 - IndieRockCafe.workflow configured according to the six steps described above

7 - Now that the workflow is created, there’s a last step required to orchestrate things: go to the IndieRockCafe folder and right-click it. Select Services > Folder Actions Setup… Make sure you attach the IndieRockCafe workflow to this folder as shown in Figure 3:

Figure 3 - Attaching IndieRockCafe.workflow in Folder Actions Setup

Make sure you click the Enable Folder Actions checkbox too:

Figure 4 - Enabling Folder Actions and turning IndieRockCafe.workflow ON for the IndieRockCafe folder

… and we’re done! As you see this is totally life saver.

Every new MP3 that gets added in my IndieRockCafe folder through DownThemAll or that I manually place in this folder will be automatically added in IndieRockCafe playlist.

Task successfully automated!

I’m a music lover and I hope you can take advantage of it too.

Important
DownThemAll creates file segments ( *.dtapart files ) while downloading. DownThemAll splits the file into several parts and then downloads each segment of the file individually, which gives you better speed from servers, especially those that choose to limit your download speed. This behavior will cause the workflow created above to fail because iTunes won’t recognize those parted files when trying to import them. To solve this problem, do the following:

In Firefox Tools menu choose More dTa Tools and then select Preferences.

In tab Advanced and under Temporary files choose a directory to store those dtapart files. See screenshot below to have an idea:

Figure 5 - Using a temporary folder to store DownThemAll file parts or segments

Doing the above, DownThemAll will store those partial files in a separate folder. When it finishes downloading a file it will join its parts and then will move that file to the IndieRockCafe folder I specified in the workflow. Now iTunes will import the MP3.

Note
Folder action workflows are saved in
/Users/YourUserName/Library/Workflows/Applications/Folder Actions

Download
You can download this workflow at:
https://sites.google.com/site/leniel/blog/IndieRockCafe.workflow.zip

This one is about an incredible application that comes with Mac OS X. Its name is Automator.

Jesus Christ, this is a life saver app!

This is the description of Automator:

With Automator, you can accomplish time-consuming, repetitive manual tasks quickly, efficiently, and effortlessly. Automator lets you skip the complex programming and scripting that is normally required to create automations. Instead, you assemble individual steps into a complete task by dragging these actions into an Automator workflow. Automator comes with a library of hundreds of actions. And with the Watch Me Do action, you can record an action — such as pressing a button or controlling an application without built-in Automator support — and replay it as an action in a workflow.

I have lots of MP3 files that I need to go through analyzing if I really want to keep them in my media library. During the last year I stored all those MP3 in a folder and such a folder is now 55.56 GB and contains 11840 files to be precise. That’s a lot of MP3! I keep postponing this open/listen to task but today I thought I’d start. That’s where Automator fits the job.

In this post I’ll show you how to create a simple workflow that helps moving the MP3 files to iTunes folder /Users/leniel/Music/iTunes/iTunes Media/Automatically Add to iTunes. The folder Automatically Add to iTunes is a special folder that iTunes keeps watching for new files added to it. When a file is added in this folder, iTunes automatically adds it to the media library using MP3 metadata to organize the library. When added files will reside in /Users/leniel/Music/iTunes/iTunes Media/Music.

Let’s create the workflow:

1 - Go to the Applications folder and select Automator.

2 - You’ll be presented with the following screen to choose a template for your workflow. Select Service as the template.

Figure 1 - Types of templates available to create an Automator workflow

3 - In Service receives selected, select audio files. “In” select Finder.

4 - Now select Files & Folders in Library list and then select Move Finder Items under the Actions list. Drag this action to the workflow area in the right.

5 - In Move Finder Items select the folder where you want the files to be moved to. You also have the option of showing the action when the workflow runs.

6 - Go to the File menu and select Save. Give it an appropriate name as Add to iTunes and you’re done.

The following screenshot shows the Service workflow configured:

 
Figure 2 - Add to iTunes.workflow configured according to the six steps described above

Now, let’s use this service workflow. To do this, go to Finder and open any folder that contains audio files such as MP3. Right click the MP3 file and voila. Now there’s an extra context menu option called Add to iTunes. What a marvelous thing.

Figure 3 - Add to iTunes context menu option in Finder when right clicking MP3 file(s)

What happens when Add to iTunes is clicked? The workflow we created will be executed and the selected file(s) will be moved to the folder specified in the workflow, in this case /Users/leniel/Music/iTunes/iTunes Media/Automatically Add to iTunes.

As you see this is totally life saver.

I can play the MP3 in iTunes and if I decide that I want to keep it in my media library I just have to select Add to iTunes.

The possibilities with Automator are endless given the amount of options in its Library and Actions lists and workflow template types.

I hope you could get an idea of what Automator can do.

Updated on 12/16/2010

If you make a slight change in step 3 above you can have this workflow add not only audio files but even entire folders to iTunes and better yet, iTunes will ask if you want to replace existing files so that you don’t end up with duplicate files in your iTunes library. This is great.

So what do you have to do? Instead of audio files, select files or folders. Just this. Save the workflow. Now right click over any folder in Finder and you’ll see that you get a new menu option under Services called Add to iTunes.

Figure 4 - Add to iTunes context menu option in Finder when right clicking a folder

Notes
Service workflows are saved in /Users/YourUserName/Library/Services.

In prior versions of Mac OS, there was an option to save the workflow as a plug-in. This was necessary so that you could have a context menu option (right-click) in Finder to run the workflow. I tried to go this way but this option isn’t available in Mac OS X 10.6.4. I realized that I had to create a Service workflow when I read this question at Apple’s Support site: No Automator plug-in in 10.6?

Download
You can download this workflow at:
https://sites.google.com/site/leniel/blog/AddtoiTunes.workflow.zip

References
Automator - Your Personal Automation Assistant

Automator - Learn by example

Automator at Apple’s Mac OS – All Applications and Utilities

Automator article at Wikipedia