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How To View A Specific SVN Revision In Your Browser


Posted by Artem Russakovskii on February 20th, 2010 in SVN, Tips

Updated: July 26th, 2010

image This is a quick recipe that I found pretty interesting and relatively unknown.

Everyone who uses SVN knows that most repositories are set up to allow viewing of their contents via a web browser. For example, here's the trunk of WP Plugins SVN: http://plugins.svn.wordpress.org/ and here is the current trunk version of a specific file, let's say http://plugins.svn.wordpress.org/stats/trunk/readme.txt.

The Problem

However, what if you wanted to view a specific revision of a file or directory in your browser?

Let's say I wanted revision 100,000 of http://plugins.svn.wordpress.org/stats/trunk/readme.txt

Normally, on a command line, you'd do something like

svn co http://plugins.svn.wordpress.org/stats/trunk/readme.txt stats
cd stats;
svn up -r100000 readme.txt

or simply

Updated: October 6th, 2009

Introduction

Every time I have to deal with svn:externals in SVN, I forget the command line syntax. Every single damn time. Normally, I use SVN GUI clients, such as SmartSVN, which make it very simple to add an svn:externals property. But for command line, it always takes looking at 25 different sites on google, which are all incredibly unhelpful for this question for some reason. Trying "svn help propset" on the command line was bloated and equally useless.

So this time I needed to write it down and make sure everyone who needed help with svn:externals would find exactly what they need here. I hope this page will soon come up on top of all the unhelpful results on …

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2

[Perl] Finding Files, The Fun And Elegant Way


Posted by Artem Russakovskii on April 8th, 2009 in Awesomeness, Linux, Perl, Programming, Tutorials

Updated: October 6th, 2009

No matter what programming language you use, there comes a time when you need to search for a file somewhere on the file system. Here, I want to talk about accomplishing this task in Perl. There are many ways of doing so, most of them boring, but I want to discuss the fun and elegant way – using File::Find::Rule.

Let me briefly discuss some of the other methods first.

Limited

Using glob() (or <>, TODO verify) you can find files in a single directory, using only the limited shell wildcard support. For example,

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my @files = glob(&quot;tmp*&quot;);
I prefer glob() to <> because glob()'s parameters can be more than just

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3

How To Check If The Local SVN Revision Is Up-To-Date


Posted by Artem Russakovskii on July 23rd, 2008 in Linux, Programming

I've encountered a problem recently where I had to figure out if some checked out code is up-to-date with the svn repository, without actually running svn update. Unfortunately, svn update doesn't have a dry-run option, so I had to find another solution.

I came up with 2, depending on how detailed the information needs to be, which I'm about to share in this post.

1. If you want exact file and directory names, you can run:

svn status -u

If any files need updating, you will see a * before the file name.

svn status wc
M     wc/bar.c
A  +   wc/qax.c

svn status -u wc
M            965    wc/bar.c
       *     

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5

How To SVN Update All Your WordPress Plugins In One Go


Posted by Artem Russakovskii on June 16th, 2008 in Beer Planet, Programming, Wordpress

If you're like me, most of your WordPress plugins are checked out into your plugins directory from the official WordPress SVN repository or some other one. I haven't updated any of mine for about a month and wanted to sync up everything quickly (including SVN externals). Here's a short command I ran to achieve that:

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cd YOUR_BLOG_ROOT/wp-content/plugins;
find . -maxdepth 1 -type d -exec svn up {} \;

What this command does is finds the top level directories in your WordPress plugins directory, then applies the "svn update" command to each, one by one.

The result is something like