This
tutorial will cover:
· Introduction
· Viewing Modes
· Interpretation
· What those changes mean
to the users
· Commands
About:
Git allows for programmers to share their
code with other programmers to view and to edit. Git tracks changes and allows the user to be
able to view the individual stages of the changes that were made to the program.
Different versions of a program correspond to different changes that were made.
For more information about Git basics click here.
Viewing:
‘git log’
The command ‘git log’ will show you the
commit history of the program in reverse chronological order. It will include the following of each commit:
checksum (unique file name), author’s email & name, date, and any comments. For example:
‘-graph’
This restructures the viewing
history to show how the program has developed.
$ git log --pretty=format:"%h %s" --graph
* 2d3acf9 ignore errors from SIGCHLD on trap
*
5e3ee11 Merge branch 'master' of git://github.com/dustin/grit
|\
| * 420eac9 Added a method for getting the
current branch.
* | 30e367c timeout code and tests
* | 5a09431 add timeout protection to grit
* | e1193f8 support for heads with slashes in
them
|/
* d6016bc require time for xmlschema
* 11d191e Merge branch 'defunkt' into local
‘gitk’
The gitk is another type of history viewer
but allows you to see the information in a more visually pleasing manner.
Interpretation
Briefly mentioned above, the output
from the viewing history will tell you several things.
1) The SHA-1
hash – a generated file name comprised of 40 characters using only the
hexadecimal characters (0-9 & a-f). See also checksum.
2) Human info –
Name and email address of the committer
3) Date – Date and
time modified.
4) Comments –
Statements summarizing the changes made to the program during that
modification.
What
this means:
This
section is still in development.
Commands:
‘git log’ – brings up the commit
history of your program
‘-p’ – shows the patches with each
commit
‘-stat’ – statistics of the changes
made (ex. number of lines added, etc. )
‘git log’ – allows you to narrow
down the commits
‘-<n>’ – shows last
n commits only, where n is an integer
‘--since’ - shows only
commits since date specified
‘--author” – narrows
down by author
For more information visit these lovely websites:
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