========================
Getting Started with Git						[TOC]
========================


---- VIDEO ------------------------------
https://www.youtube.com/embed/qWJzr5j67Ps
-----------------------------------------

Exercise: ABC Compiler Project
==============================
Create a repository for the project. Initialize it with what we have developed
so far:

:import: session15/abc/Makefile [fold]
:import: session15/abc/lexer.h [fold]
:import: session15/abc/lexer.c [fold]
:import: session15/abc/xtest_lexer.c [fold]
:import: session15/abc/test_lexer.in [fold]

Some Bugfix
===========
You certainly saw that there was a bug in _lexer.c_. The column number of a
token was not correct. This was fix with a new commit:

---- CODE (type=txt) -----------------------------------------------------------
MCL:abc lehn$ git show 10aef1fe0e95973b6f2e05a59b88cea71b8cd3c2
commit 10aef1fe0e95973b6f2e05a59b88cea71b8cd3c2 (HEAD -> master, tag: v.0.0.2, origin/master, origin/HEAD)
Author: Michael C. Lehn <michel.lehn@uni-ulm.de>
Date:   Fri Jun 10 09:27:29 2022 +0200

    bug fix: col number

diff --git a/lexer.c b/lexer.c
index e202c80..01e552d 100644
--- a/lexer.c
+++ b/lexer.c
@@ -22,7 +22,7 @@ nextCh(void)
     ch = getchar();
     if (ch == '\n') {
        ++curr_line;
-       curr_col = 1;
+       curr_col = 0;
     }
     return ch;
 }
--------------------------------------------------------------------------------

Afterwards the tag _v.0.0.2_ had to be changed. It still was the tag for the
buggy commit. For that the tag _v.0.0.2_ in the local repository was deleted
and also in the remote repository:

---- CODE (type=txt) -----------------------------------------------------------
git -d v.0.0.2
git push --delete origin v.0.0.2
--------------------------------------------------------------------------------

After that the new commit with the bug fix got the tag _v.0.0.2_ and tags were
also pushed to the remote repository:

---- CODE (type=txt) -----------------------------------------------------------
git tag v.0.0.2 -a
git push origin --tags
--------------------------------------------------------------------------------

ABC Compiler Project: Tag v.0.0.2
=================================

---- SHELL (path=session15/git, hide) ------------------------------------------
rm -rf abc
git clone git@gitlab.com:uni-ulmulm-university-department-of-numerical-analysis/abc.git
git config --global advice.detachedHead true
--------------------------------------------------------------------------------

With _git checkout tags/<tag>_ you can go back to a given tag in your
repository. I will use this so that you can see below my state of the project
with tag _v.0.0.2_:

---- SHELL (path=session15/git/abc) --------------------------------------------
git checkout tags/v.0.0.2
--------------------------------------------------------------------------------

And of course you can follow git's advice to get rid of this message...

:import: session15/git/abc/lexer.c [fold]
:import: session15/git/abc/lexer.h [fold]
:import: session15/git/abc/Makefile [fold]
:import: session15/git/abc/README.md [fold]
:import: session15/git/abc/test_lexer.in [fold]
:import: session15/git/abc/xtest_lexer.c [fold]