(on Wikipedia)
https://www.git-scm.com/

A version control system of some note.

I use it, not that I know what I'm doing.

• See also Git on Windows

• See also tig (text-mode interface for git)

Repository hosting websites:

• GitHub

• http://repo.or.cz/

---

• 2016-03-29 - 2.6.2, on Slackware 14.1

• 2016-03-26 - 1.9.1, on Lubuntu 14.04.4 LTS

2016-03-29 - 2.6.2 ∞

This came with Slackware 14.1

2016-03-26 - 1.9.1 ∞

This was in Lubuntu's repository.

(No notes were recorded)

Graphical tools ∞

While rather awful, it gitk lets you do at least basic things.

Go back in time - checkout a previous version ∞

\git  log
\git  checkout  <code>

to return:

\git  pull  origin  HEAD

Roll back all files to a previous commit ∞

git reset --hard <tag/branch/commit id>

If you wish to commit that state, so remote repository also points to rolled back commit do:

git push <reponame> -f

Restore a file deleted from git ∞

List all deleted files ∞

\git  log  --diff-filter=D  --summary

Un-commit a single deleted file ∞

\git  checkout  --  filename.ext

Roll back an individual file ∞

Spoiler

\git  log  filename.ext

\git  checkout  <revision>  filename.ext

For example:

\git  log  filename.ext

 commit 875465be775031545f9c7f89as8025373df63e23
 Author: AUTHORNAME
 Date:   Sun Jul 19 01:20:11 2015 -0700
 
     .
 
 commit 8409d2b3aaff1276c1266748397fe3d6e9576961
 Author: AUTHORNAME
 Date:   Thu Jul 2 10:54:37 2015 -0700
 
   misc, theme updates, media locally cached

git  checkout  4d0f80012abfe9d074db841ae36f07f0722f31c8  --  filename.ext

Why there isn't a git checkout -1 -- filename.ext - type command is beyond me. I think maybe that's HEAD~1 but I haven't tested this.

I was told the right command was git checkout <filename> -1 but that didn't work..

There is also git reset

See also:

• https://stackoverflow.com/questions/2733873/reverting-a-single-file-to-a-previous-version-in-git
• https://stackoverflow.com/questions/215718/reset-or-revert-a-specific-file-to-a-specific-revision-using-git

• http://thecodeartist.blogspot.ca/2015/04/git-prevision-checkout-previous-version-of-file.html

  • This does not work for me (git version 2.7.4)

Fix the default git push ∞

Cloned something and want to fix its default push?

\git  remote rm origin 
\git  remote add origin git://github.com/spiralofhope/shoes.git

.. hrm, not working right, try editing .git/config and changing the url line to something like git@github.com:spiralofhope/random-shoes.git

Tagging ∞

\git  tag "v1.3"
\git  push --tags

This provides a new package to download.

Rename a tag ∞

I am told it is the following, but for me it only deleted the old tag!

OLD_TAG="some text"
NEW_TAG="some text"

git push origin refs/tags/${OLD_TAG}:refs/tags/${NEW_TAG} :refs/tags/${OLD_TAG}
git tag -d ${OLD_TAG}

Download everything fresh ∞

Downloading everything fresh. Maybe after accepting a pull request.

\git  pull git@github.com:spiralofhope/shoes-contrib.git master

Renaming/deleting tags github ∞

Deleting using the github UI:

1. Visit your repository

2. Find the row: Commits | Branch | Releases | Contributor, click releases

   • You will see a list of all releases.
3. At the top-left, Releases | Tags, click Tags
4. Click on the name of one of the releases

5. At the top-right, Edit release | Delete

Synchroninzing your github tag deletion to your local git repository:

git tag -l | xargs git tag -d
git fetch

Renaming a tag in a local git repository:

NEW_TAG_NAME=newtag
OLD_TAG_NAME=oldtag

git  tag  $NEW_TAG_NAME      $OLD_TAG_NAME
git  tag  -d                 $OLD_TAG_NAME
git  push origin  :refs/tags/$OLD_TAG_NAME
git  push   --tags

Revisionism ∞

Forgot to check in an old revision of a file ∞

See also http://stackoverflow.com/questions/3895453/how-do-i-make-a-git-commit-in-the-past

Well there's no easy way. It's probably doable but I can't find a solution.

The closest I get is an incomplete solution: http://blog.xkoder.com/2009/06/06/git-tutorial-part-ii-sharpen-you-git-fu-with-10-more-commands/

Find the commit hash before the file you want to modify, then check it out.

\git  checkout COMMIT_HASH

Make your changes, then commit them.

\git  commit -a

FIXME ... then supposedly there's a way to propagate the changes back to the master's HEAD. Fucked if I know how. The above link doesn't actually explain that. I am disappoint.

Go back to the present.

\git  checkout master

Remove all trace of a file ∞

BFG Repo-Cleaner

Repository maintenance - compression / optimization ∞

I don't understand these things, but they do stuff and things and that's good. Probably.

\git  fsck

\git  gc

(gc will fix shit that fsck finds)

Fix ESC[33m and ESC[m and restore colour ∞

\git  config  --global  core.pager "less -r"

Actually add files ∞

I don't know what fucking idiot would have git add -A not work as expected, but this seems to work:

\git  rm --cached -r  directory
\git  add             directory

readlink function not implemented ∞

error: readlink("path/to/filename"): Function not implemented
error: unable to index file path/to/filename
fatal: updating files failed

https://stackoverflow.com/questions/11728882#comment56217354_11728882

git config core.symlinks true instead of git config core.symlinks false got rid of the error for me. Consequently, the symlinks I created using mklink in Windows were pushed without error, but when cloning the project again, the symlinks become text files that says where the original files are located instead of working as a real symlink.

Tested 2016-07-20 with 2.9.0.windows.1 - it seems to work.

Ignoring files ∞

Within /.gitignore

If you want to remove all trace of a file from git history, you'll have to perform additional steps described elsewhere.

Synchronize clone with its repository file creation times ∞

https://github.com/tst2005/git-timesync/
(archived)

When you make a git clone the created file are the current date. This script allow you to change the file timestamp to the same than the repository one.

Compare local edit to remote change ∞

Changes to all files ∞

\git  diff

Changes to a specific file ∞

https://stackoverflow.com/a/31703666

\git  diff origin/master:./ -- README.md
\git  diff HEAD^:./ -- README.md
\git  diff stash@{0}:./ -- README.md
\git  diff 1A2B3C4D:./ -- README.md

Visually ∞

Not tested, vi is insane:

https://stackoverflow.com/a/34180341

\git  difftool

It will start your diff app automatically for each changed file.

Windows: If you did not set a diff app, you can do it like in the example below(I use Winmerge):

\git  config --global merge.tool winmerge
\git  config --replace --global mergetool.winmerge.cmd \
  "\"C:\Program Files (x86)\WinMerge\WinMergeU.exe\" -e -u -dl \"Base\" -dr \"Mine\" \"$LOCAL\" \"$REMOTE\" \"$MERGED\""
\git  config --global mergetool.prompt false