Changes between Initial Version and Version 1 of Workshops/IntroToHpc2015/git

Timestamp:

10/19/15 16:30:44 (9 years ago)

Author:

pdejesus

Comment:

—

Workshops/IntroToHpc2015/git

@@ +1 @@
+[[PageOutline]]
+= Version Control with ''git'' =
+
+Git is a free and open source distributed version control system designed to handle everything from small to very large projects with speed and efficiency. 
+
+To use git on Cypress, you have to load module. It is better to set this in ''.modulerc'' (see below).
+{{{#!bash
+[fuji@cypress2 ~]$ module load git
+}}}
+
+[[Image(GIT_model.png)]]
+
+== Create a project repository ==
+On your project directory, for example, (replace dpg with your project folder name)
+{{{#!bash
+[fuji@cypress2 fuji]$ cd projectX
+[fuji@cypress2 projectX]$ git init
+Initialized empty Git repository in /lustre/project/dpg/fuji/projectX/.git/
+}}}
+
+Add a file and commit
+{{{#!bash
+[fuji@cypress2 projectX]$ echo "This is README.txt for my git-repo" > README.txt
+[fuji@cypress2 projectX]$ git add README.txt
+[fuji@cypress2 projectX]$ git commit -m"first commit"
+[master (root-commit) 4fe9eae] first commit
+ Committer: Hideki Fujioka <fuji@cypress2.cm.cluster>
+Your name and email address were configured automatically based
+on your username and hostname. Please check that they are accurate.
+You can suppress this message by setting them explicitly. Run the
+following command and follow the instructions in your editor to edit
+your configuration file:
+
+    git config --global --edit
+
+After doing this, you may fix the identity used for this commit with:
+
+    git commit --amend --reset-author
+
+ 1 file changed, 1 insertion(+)
+ create mode 100644 README.txt
+}}}
+
+You can work with this repository on Cypress.
+
+=== Create a Bare Repository ===
+If you want to make a git server repository, you have to make a Bare Repository. For example,
+
+{{{#!bash
+[fuji@cypress2 dpg]$ mkdir repos
+[fuji@cypress2 dpg]$ cd repos
+[fuji@cypress2 repos]$ git clone --bare ../fuji/projectX ./projectX.git 
+}}}
+
+Add group write permissions to a repository so that people in your group can pull/push.
+ {{{#!bash
+[fuji@cypress2 repos]$ chgrp -R dpg projectX.git 
+[fuji@cypress2 repos]$ chmod -R g+swX projectX.git
+[fuji@cypress2 repos]$ cd projectX.git
+[fuji@cypress2 projectX.git]$ git init --bare --shared
+Reinitialized existing shared Git repository in /lustre/project/dpg/repos/projectX.git/
+}}}
+
+=== Make a Clone Repository ===
+Make a clone repository on Cypress,
+{{{#!bash
+[fuji@cypress2 ~]$ git clone file:///lustre/project/dpg/repos/git/projectX.git
+Cloning into 'projectX'...
+remote: Counting objects: 3, done.
+remote: Total 3 (delta 0), reused 0 (delta 0)
+Receiving objects: 100% (3/3), done.
+Checking connectivity... done.
+[fuji@cypress2 ~]$ ls
+projectX
+}}}
+
+Make a clone repository over network, (you may have to type password)
+{{{#!bash
+Hideki02:~ fuji$ git clone fuji@cypress1.tulane.edu:/lustre/project/dpg/repos/git/projectX.git
+Cloning into 'projectX'...
+remote: Counting objects: 3, done.
+remote: Total 3 (delta 0), reused 0 (delta 0)
+Receiving objects: 100% (3/3), done.
+Checking connectivity... done.
+Hideki02:~ fuji$ ls
+projectX
+}}}
+Since git is not a default module on Cypress, you have to set '''~/.modulerc''' like:
+{{{#!bash
+#%Module3.2.10
+module load git
+}}}
+
+
+== Free Git Repository ==
+* [https://bitbucket.org/]
+* [https://github.com/]
+
+
+== Basic Commands ==
+
+=== Add new files ===
+{{{#!bash
+Hideki02:projectX fuji$ git add test.txt
+}}}
+This command updates the index using the current content found in the working tree, to prepare the content staged for the next commit. 
+
+=== Commit ===
+{{{#!bash
+Hideki02:projectX fuji$ git commit -m"message"
+}}}
+Stores the current contents of the index in a new commit along with a log message from the user describing the changes. At this point, only your local clone has your modification.
+
+=== push ===
+When you have your project at a point that you want to share with your group people, you have to push it to a master repository.
+{{{#!bash
+Hideki02:projectX fuji$ git push
+}}}
+You may have to type password for Cypress.
+
+=== pull ===
+To pull current project in the master repository, 
+{{{#!bash
+Hideki02:projectX fuji$ git pull
+}}}
+
+== Documents ==
+* [https://git-scm.com/doc]