Working with Git for Windows

Installation

Download Git For Windows from https://git-scm.com/.

Right-click the Git-x.y.z-nn-bit.exe file you downloaded and select the option “Run as administrator”. Confirm that you want to run the file.

Click “Next>” to start the installer

Click “Next>” to accept the GPL2 license.

Set or keep the proposed install directory and click “Next>”

Windows Explorer integration is very handy, especially the “Git Bash here” option. Click “Next>” to use the selected options.

Chose whether you want to use a Start Menu folder and click “Next>”

The second or third option is mandatory for certain other programs. The second option is a good balance between a limited amount of changes to your system and enough features. Select the one that suits you best and click “Next>”

If you already have PuTTY or other Tortoise… products it’s best to select “Use (Tortoise)Plink”. Click “Next>” after selecting.

Select the option “Checkout as-is, commit Unix-style line endings”. This makes sure that files from the remote repository keep their line endings, but if you happen to add a new file with Windows line endings it will be converted to Unix-style line endings when you commit the file.

Select the terminal of your choice. Click “Next>” for the next step.

An experimental option; your decision. Click “Next>” after making your choice.

All git tools will be installed.

Done!

Configuration

If you only use Git for TYPO3 then you can use the global settings. If you use it for several unrelated projects, then you can set local settings; these are valid for a single repository. Think about the best settings for your situation. Perhaps the global settings are best for your projects at work (perhaps a repository per project?) and then you can set the local settings for each of the TYPO3 version and perhaps some extensions you maintain.

Initial clone

Right-click in the folder of your choice in the Windows Explorer and select from the context menu the option “Git clone…”.

• URL: git@github.com:typo3/typo3 .
• “Load Putty key”: select your .ppk file

Setting the SSH key in TortoiseGit

Open the folder with the repository (here you’ll find folders such as Build, typo3 and the hidden .git folder), right-click to get the context menu and select “TortoiseGit > Settings”.

You’ll first get a notification about the way that system wide, global and local settings work.

The username and email address have to be the same as you entered in Gerrit

Select “Git > Remote”, select ‘origin’ “Remote” server and browse with the […] button to select the PuTTY private key in the field “Putty Key”.

In “General > Context Menu” and “General > Set Extend Menu Item” you can configure what appears in the context menu and what appears in the TortoiseGit sub context menu.

Commit hook

In each folder that contains a repository you need to execute the following command to install a Git hook which adds a unique Change-Id to the commit message (and performs a few checks). Right-click the folder and select “Git Bash here”.

curl -o .git/hooks/commit-msg "https://typo3.org/fileadmin/resources/git/commit-msg.txt" && chmod +x .git/hooks/commit-msg

Note

You can read about the why and where of the pre-commit hook here.

Push to Gerrit

In the Git Bash window, enter the following commands to set that you push to Gerrit instead of the TYPO3 repository directly.

git config remote.origin.pushurl “ssh://<username>@review.typo3.org:29418/Packages/TYPO3.CMS.git” git config remote.origin.push +refs/heads/master:refs/for/master git config branch.autosetuprebase remote

Links to bugtracker

In “Hook Scripts > Issue Tracker Config” you can configure how TortoiseGit can turn issue numbers in the commit message into links. In the Git log you can now click directly to the issue in forge.

• Enter in the field “bugtraq.url” https://forge.typo3.org/issues/%BUGID%
• In the field “bugtraq.logregex” enter two lines:

(Resolves|Fixes|Related):\s+#\d+
(\d+)

Review walkthrough

This will be a mix between command line options and TortoiseGit actions. If you have no problem remembering the various git commands the command line walkthrough will tell you all the secrets.

Update the repository

Although it’s not hard to use the git pull command, the “Git sync” dialogue of TortoiseGit has a nice overview of the incoming commits and all their changes. The context menu gives you all the options from the log viewer.

Create a branch

It’s easier to undo all the changes in a patch if you create a branch for it.

Choose from the context menu “TortoiseGit > Create branch”. Enter a name and enable the option “Switch to new branch”. After clicking the OK button it shows the progress of the operation.

Cherry-picking

Now we switch to the command line. First visit the page of the patch in Gerrit. From the Download menu, choose the copy button after the ‘Cherry Pick’ line. Paste the line with the ‘Ins’ button in the Bash window.

Now we can do the testing and register the votes in Gerrit.

Cleaning up

Because there is a separate branch for this patch the only thing that is needed is to checkout master. This can be done on the command line (‘git checkout master’) or using TortoiseGit by using from the context menu “TortoiseGit > Switch/Checkout…”. Select the branch ‘master’ from the dropdown and click OK.

Starting a new patch

• First create a new branch (see the review walkthrough).
• Make your changes in the code
• From the context menu select “Git commit -> <your_branch_name>…”
• Enter the commit message according to the >>>rules for the commit message<<< and click OK

Your changes are now stored locally in a separate branch.

Send the patch to Gerrit

From the context menu select “TortoiseGit > Push”.

In the field “Local” there is already the name of your branch In the field “Remote” make sure there is the value ‘refs/for/master’ if you push for current master. If you push for older branches the name could be ‘refs/for/TYPO3_6-2’ and so on. “Destination > Remote” should be ‘origin’. Make sure the option “Autoload Putty Key” is enabled. If all is correct, click the OK button.

You’ll see the progress and a lot of messages. If it ends with a Success message then the patch is present in Gerrit. Otherwise review the messages to see what went wrong.