Archive for November, 2011
So while ago I wrote about my adventures in SQL Azure backups. At the time, there was very little offered by either Microsoft or tool vendors to provide an easy solution for scheduling SQL Azure backups. So in the end, I cobbled together a solution involving batch files, Task Scheduler, and most importantly Red Gate Compare and Data Compare.
But much has changed the past year. Red Gate released their new SQL Azure Backup product, whose functionality looks freakishly similar to other less polished solutions that people had written about. The cool part is that while the SQL Compare solution I proposed originally required a purchased copy of the Red Gate SQL tools, Red Gate has been nice enough to release their Azure backup tool for free.
Also, Microsoft has released a CTP version of their SQL Import/Export Service. This service allows you to backup and restore your database using Azure Blob storage instead having to download it to a local database server, which is actually what most of us really wanted in the first place anyway. The latest versions of Red Gate’s Azure Backup also supports this functionality, which gives you a lot of options.
So just to close the loop on this, here’s the updated batch script file we’re using for SportsCommander now for doing regular production backups of our database. We’re opting to use the the Import/Export functionality as our primary backup strategy:
for /f "tokens=1-4 delims=/- " %%a in ('date /t') do set XDate=%%d_%%b_%%c
for /f "tokens=1-2 delims=: " %%a in ('time /t') do set XTime=%%a_%%b
C:\SQLBackups\RedGate.SQLAzureBackupCommandLine.exe /AzureServer:%SqlAzureServerName% /AzureDatabase:%SqlAzureDatabaseName% /AzureUserName:%SqlAzureUserName% /AzurePassword:%SqlAzurePassword% /CreateCopy /StorageAccount:%AzureStorageAccount% /AccessKey:%AzureStorageKey% /Container:%AzureStorageContainer% /Filename:%BackupName%.bacpac
A few notes:
- This runs the same Import/Export functionality you can get through the Azure portal. If you have any problems with the parameters here, you can experiment in Azure portal
- The AzureStorageAccount parameter is the account name of your storage account. So if your blob storage URL is http://myawesomeapp.blob.core.windows.net, your would want to use “myawesomeapp” in this parameter
- The /CreateCopy parameter will use SQL Azure’s CREATE DATABASE AS COPY OF method to create a snapshot first and then back that up, instead of just backing up the live database. This takes a little extra time, but it is important to ensure that you are getting a transactionally consistent backup.
Of course, if you still want to copy down a local instance of the database like we did in the previous post, you can easily do that too:
for /f "tokens=1-4 delims=/- " %%a in (‘date /t’) do set XDate=%%d_%%b_%%c
for /f "tokens=1-2 delims=: " %%a in (‘time /t’) do set XTime=%%a_%%b
C:\SQLBackups\RedGate.SQLAzureBackupCommandLine.exe /AzureServer:%SqlAzureServerName% /AzureDatabase:%SqlAzureDatabaseName% /AzureUserName:%SqlAzureUserName% /AzurePassword:%SqlAzurePassword% /CreateCopy /LocalServer:%LocalSqlServerName% /LocalDatabase:%BackupName% /LocalUserName:%LocalSqlUserName% /LocalPassword:%LocalSqlPassword% /DropLocal
How to use SourceGear DiffMerge in SourceSafe, TFS, and SVN
What is DiffMerge
DiffMerge is yet-another-diff-and-merge-tool from the fine folks at SourceGear. It’s awesome. It’s head and shoulders above whatever junky diff tool they provided with your source control platform, unless of course you’re already using Vault. Eric Sink, the founder of SourceGear, wrote about it here. By the way, Eric’s blog is easily one of the most valuable I’ve read, and while it doesn’t get much love these days, there’s a lot of great stuff there, and it’s even worth going back and reading from the beginning if you haven’t seen it.
Are there better diff tools out there? Sure, there probably are. I’m sure you have your favorite. If you’re using something already that works for you, great. DiffMerge is just yet another great option to consider when you’re getting started.
You sound like a sleazy used car salesman
Yeah, I probably do, but I don’t work for SourceGear and have no financial interest in their products. I’ve just been a very happy user of Vault and DiffMerge for years. And it if increases Vault adoption, both among development shops and development tool vendors, it will make my life easier.
But when I go to work on long-term contracts for large clients, they already have source control in place that they want me to use, which is OK, but when I need to do some merging, it starts getting painful. I want it to tell me not just that a line changed, but exactly what in that line changed. I want to it actually be able to tell me the only change is whitespace. I want it to offer me a clean and intuitive interface. Crazy, I know.
Not a huge problem because DiffMerge is free, and it can plug into just about any source control system, replacing the existing settings. However those settings can be tricky to figure out, so I figured I’d put together a cheat sheet of how to set it up for various platforms.
Adding DiffMerge To SourceSafe
Let’s start off with those in greatest need, ye old SourceSafe users. First and foremost, I’m sorry. We all feel bad that you are in this position. SourceSafe was great for what it was, 15 years ago when file shares were considered a reliable data interchange format, but nobody should have to suffer through SourceSafe in this day and age. But don’t worry, adding in DiffMerge can add just enough pretty flowers to your dung heap of a source control system to make it bearable. Just like getting 1 hour of yard time when you’ve been in the hole for a week, it gives you something look forward to.
Anywho, let’s get started. First, whip out your SourceSafe explorer:
Here’s what we get for a standard VSS diff:
Ugh. So go to Tools->Options and go to the Custom Editors Tab. From there, the following operations:
Operation: File Difference
File Extension: .*
Command: [DiffMergePath]\diffmerge.exe –title1=”original version” –title2=”modified version” %1 %2
Operation: File Merge
File Merge: .*
Command: [DiffMergePath]\diffmerge.exe –title1=”source branch” –title2=”base version” –title3=”destination branch” –result=%4 %1 %3 %2
Now here’s our diff, much less painful:
But merging is where it really shines:
Thanks to Paul Roub from Source Gear for the details: http://blog.roub.net/2007/11/diffmerge_in_vss.html
Adding DiffMerge To Subversion
Obviously SVN is worlds better than VSS, but some of the standard tools distributed with TortoiseSVN are a little lacking. You might say “you get what you paid for,” but you’d only say that if you wanted to tick off a lot of smart and helpful people.
So let’s take a look at a standard diff in SVN:
Oof. I’ve used SVN on and off for years, and I still don’t understand what is going on here.
So let’s get this a little mo’ better. Right click your folder, and select TortoiseSVN->Settings. Go to the External Programs->Diff Viewer, and enter this External tool:
[DiffMergePath]\DiffMerge.exe /t1=Mine /t2=Original %mine %base
Switch over to the Merge Tool screen, and enter this External Tool:
[DiffMergePath]\DiffMerge.exe /t1=Mine /t2=Base /t3=Theirs /r=%merged %mine %base %theirs
And now our diffs look a little more familiar:
Thanks Mark Porter for the details: http://www.manik-software.co.uk/blog/post/TortoiseSVN-and-DiffMerge.aspx
Adding DiffMerge To Team Foundation Server
For years I dreamed of using TFS. I hoped that someday I would work at a company successful and cool enough to invest the money in a TFS solution. And then I actually got it, and uh, it’s seems like a nice enough fella, but it seems that its tendencies towards megalomania have really had some negative consequences on the end-user experience.
Given that, after decades of technological advancement in source control, the TFS diff tool is pretty much just the same ugliness as SourceSafe:
Get your spelunking helmet on, and we’ll go digging for the settings in TFS to change this.
Open up Visual Studio and select Tools->Options
Expand the Source Control group, and select Visual Studio Team Foundation Server
Click the Configure User Tools button
Enter the following tool configurations:
Arguments: /title1=%6 /title2=%7 %1 %2
Arguments: /title1=%6 /title2=%7 /title3=%8 /result=%4 %1 %2 %3 (Corrected, thanks to Rune in the comments!)
Thanks to James Manning for the details: http://blogs.msdn.com/b/jmanning/archive/2006/02/20/diff-merge-configuration-in-team-foundation-common-command-and-argument-values.aspx
So that’s all it takes to make your source control life a little bit easier. Even if you don’t prefer DiffMerge, I’d suggest you find one you do like, because the built-in tools are usually pretty bad. Diffing and merging is hard enough as it is, don’t waste precious brain cells on substandard tools.