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DevOps Basics–Staging and Committing Changes

Another post for me that is simple and hopefully serves as an example for people trying to get blogging as #SQLNewBloggers. This is also a part of a basic series on git and how to use it.

In the course of normal work, you’ll change your code files. Git requires that you specify those changes that you want to commit, and those that you don’t. This means I can make changes to a few files, but not commit all those changes.

For example, let’s say that I add a couple files to my repo. I’ll add the Tables/Log.sql and Views/LogView.sql to my repo. This will give me a status in git that shows these are new files. In this case, I see the folders as they are new as well.

2017-06-27 21_21_16-cmd

If I add these files as being tracked, I’ll use “git add Tables” to add that folder and file. I get a new status.

2017-06-27 21_22_07-cmd

Here my Log.sql file is being tracked (and the folder) as changes that are staged to be committed. If I commit now, I’ll get just that file added, but not Views\LogView.sql.

2017-06-27 21_23_40-cmd

Staged and Changed

There is one strange thing I’ve run into, at least, strange to me. If I stage my Views folder, I’ll get this:

2017-06-28 12_12_23-cmd

Now I’ll change the LogView.sql file, removing the SELECT * and adding columns. When I check the status, I now see the file in both the staged and unstaged areas.

2017-06-28 12_13_25-cmd

This is allowed, but if I commit, I’ll get the original version of LogView.sql as it existed when I ran the git add command. See below that after my commit, I still see the modified file.

2017-06-28 12_15_50-cmd

If  I add and commit that file, I can use git log to see the actual changes. See the line in red with the – is the original line, while the green line with + is the change.

2017-06-28 12_17_02-cmd - git  log -p

Git add and git commit are the main ways you’ll commit files. If you have issues with a GUI client, then this is a good way for you to debug and clean up your repo. Knowing the command line is always the best way to truly understand what is happening.

Filed under: Blog Tagged: DevOps, Git, SQLNewBlogger, syndicated

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Steve Jones is the editor of SQLServerCentral.com and visits a wide variety of data related topics in his daily editorial. Steve has spent years working as a DBA and general purpose Windows administrator, primarily working with SQL Server since it was ported from Sybase in 1990. You can follow Steve on Twitter at twitter.com/way0utwest


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