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We will begin at the beginning by explaining some background on version control tools, then move on to how to get Git running on your system and finally how to get it setup to start working with. +++ -2,6 +2,7 chapter will be about getting started with Git. This is similar to the “osxkeychain” helper described above, but uses the Windows Credential Store to control sensitive information.ĭiff -git a/chapter1.docx b/chapter1.docx

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If you’re using Windows, you can install a helper called “winstore.” This method stores the credentials on disk, and they never expire, but they’re encrypted with the same system that stores HTTPS certificates and Safari auto-fills. If you’re using a Mac, Git comes with an “osxkeychain” mode, which caches credentials in the secure keychain that’s attached to your system account. The downside of this approach is that your passwords are stored in cleartext in a plain file in your home directory. This means that until you change your password for the Git host, you won’t ever have to type in your credentials again. The “store” mode saves the credentials to a plain-text file on disk, and they never expire. None of the passwords are ever stored on disk, and they are purged from the cache after 15 minutes. The “cache” mode keeps credentials in memory for a certain period of time. Writing objects: 100% (3/3), 340 bytes | 0 bytes/s, done.Įvery connection will prompt you for your username and password. $ git commit -a -m 'three seconds is better' (5)ġ file changed, 2 insertions(+), 2 deletions(-) the loop routine runs over and over again forever:ĭigitalWrite(led, HIGH) // turn the LED on (HIGH is the voltage level)

Rewriting History describes a number of useful Git tricks for rewriting history and interactively staging files – use these tools to help craft a clean and understandable history before sending the work to someone else. This approach also makes it easier to pull out or revert one of the changesets if you need to later. The project snapshot at the tip of the branch is identical whether you do one commit or five, as long as all the changes are added at some point, so try to make things easier on your fellow developers when they have to review your changes. If some of the changes modify the same file, try to use git add -patch to partially stage files (covered in detail in Interactive Staging). If you can, try to make your changes digestible – don’t code for a whole weekend on five different issues and then submit them all as one massive commit on Monday.Įven if you don’t commit during the weekend, use the staging area on Monday to split your work into at least one commit per issue, with a useful message per commit. Next, try to make each commit a logically separate changeset. Options include oneline, short, full, fuller, and format (where you specify your own format).

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Show only the first few characters of the SHA-1 checksum instead of all 40.ĭisplay the date in a relative format (for example, “2 weeks ago”) instead of using the full date format.ĭisplay an ASCII graph of the branch and merge history beside the log output. Show the list of files affected with added/modified/deleted information as well. Show the list of files modified after the commit information. Show statistics for files modified in each commit.ĭisplay only the changed/insertions/deletions line from the -stat command.

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Show the patch introduced with each commit. Those are only some simple output-formatting options to git log – there are many more.Ĭommon options to git log lists the options we’ve covered so far, as well as some other common formatting options that may be useful, along with how they change the output of the log command. Appendix B: Embedding Git in your Applications.

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