Last Updated: February 25, 2016
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· igreulich

git lg

git log

I use git log regularly to view the past commits. We all know how useful the git log command is. But it's ugly;

commit cd85270b35d625ddebd74c44782b39a5b8286587
Author: Ian Greulich <----@--------.com>
Date:   Thu Sep 26 16:47:16 2013 -0400

    WR-184085: new image f/medical plan cart

commit 296ec25ecfe26ef6a0f89f28b9390607dd4dd689
Author: Ian Greulich <----@--------.com>
Date:   Thu Sep 26 16:04:07 2013 -0400

    WR-184085: fixes from QA

commit cd6a0e61b55e564c2af880ca616f2b799e7ac40f
Merge: 7de6ced 3c50403
Author: Tony Malatanos <----@--------.com>
Date:   Wed Sep 25 17:51:03 2013 -0400

    Merge pull request #4 in UXG/goblin from ~IGREULICH/goblin-fork:develop to develop

Picture

But there is a lot we can do to make this… more meaningful;

Enter git lg

By aliasing a fancy log in your ~/.gitconfig;

[alias]
  lg = log --graph --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset'

when you run git lg, you get a much nicer output;

* cd85270 - (HEAD, origin/feature/legacy, origin/WR-184085_fix, feature/legacy, WR-184085_fix) WR-184085: new image f/medical plan cart (17 hours ago) <Ian Greulich>
* 296ec25 - WR-184085: fixes from QA (18 hours ago) <Ian Greulich>
*   cd6a0e6 - Merge pull request #4 in UXG/goblin from ~IGREULICH/goblin-fork:develop to develop (2 days ago) <Tony Malatanos>
|\
| * 3c50403 - WR-184085: tweak edit/remove link positions (2 days ago) <Ian Greulich>
| * c63b408 - WR-184085: fix nth-type-of (2 days ago) <Ian Greulich>
| * 6bfd1bd - WR-184085: tweak style to fix inconsistancies (2 days ago) <Ian Greulich>
| * 4fe8f72 - (origin/WR-184085) WR-184085: finish the style changes, added new images (2 days ago) <Ian Greulich>
| * 0ef58e4 - WR-184085: update plan listing page (4 days ago) <Ian Greulich>
| * e1b8a16 - WR-184085: update progress indicator, some of plan comparison page (4 days ago) <Ian Greulich>
| * 876f2c3 - WR-184085: update hope page center content (4 days ago) <Ian Greulich>
| * 308bf10 - WR-184085: update footer (4 days ago) <Ian Greulich>
| * df71560 - WR-184085: add oswald font, update main header text styles (4 days ago) <Ian Greulich>
| * ea45ca0 - WR-184085: update header nav (7 days ago) <Ian Greulich>

Picture

Much nicer, right?

--graph gives you the graph you see on the left, the * indicates the branch the commit was made to, but --format=<blah> is where the magic really happens.

--format

Basically --format lets you manipulate the output of log into essentially any format you like (See git log --help for more detail). I have the following;

  • %Cred%h%Creset prints the abbreviated sha: %h, in red, then resets the color
  • - prints a dash
  • %C(yellow)%d%Creset prints the ref names: %d in yellow, then resets the color
  • %s prints the subject, or commit message
  • %Cgreen(%cr) prints the commit date, relative: %cr in green and parenthesis
  • %C(bold blue)<%an>%Creset prints the authors name: %an in blue, and brackets, then resets the color

This makes the output from lg much more useful, and easier to read.