Introduction to Git & Gerrit at the London JUG by Matthew McCullough and Alex Blewitt
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Introduction to Git & Gerrit
at the London JUG
by Matthew McCullough and Alex Blewitt
Matthew McCullough
@matthewmccull
Git
“Cool kids” version control system
Open Source
bash scripts ☛ C code
≉
I'm an egotistical bastard, and
I name all my projects
after myself. First Linux,
now git.-Linus Torvalds
“
”
➡How to commit, branch and tag
➡How Git implements a new commit-referencing syntax
➡How to pull and push changes between repositories
➡How to set up a Git repository
➡How to set up a Git repository
No daemon
No special repo area
> cd myproj> git initInitialized empty Git repository in /stuff/myproj/.git/
➡How to commit, branch and tag
➡How Git implements a new commit-referencing syntax
➡How to pull and push changes between repositories
➡How to set up a Git repository
➡How to commit, branch and tag
The three basics
➡How to commit
> git add <FILENAME>
> git status# On branch master# Initial commit# Changes to be committed:# (use "git rm --cached <file>..." to unstage)# new file: myfile.txt
> git commit -m”<MESSAGE>”[master (root-commit) 498cc44] My first commit 1 files changed, 5 insertions(+), 0 deletions(-) create mode 100644 myfile.txt
Local Branches
Remote Branches
Upstream Branches
Working Copy
commit
➡How to branch
> git branch <BRANCHNAME>
Local Branches
Remote Branches
Upstream Branches
Working Copy
> git checkout <BRANCHNAME>Switched to branch 'mybranch'
Local Branches
Remote Branches
Upstream Branches
Working Copy
➡How to tag
> git tag -a <TAGNAME> -m”<MESSAGE>”
➡How to commit, branch and tag
➡How Git implements a new commit-referencing syntax
➡How to pull and push changes between repositories
➡How to set up a Git repository
➡How Git implements a new commit-referencing syntax
9AB223D28B1AA46EF1780B22F304982E39872C34
<html><body>
<p>This is a test</p><img src="http://ai.com/icon.gif">
</body></html>
treetree: 7e8b1 webblob: 9ab16 index.html
a10b3 treeblob: 8d162 logo.jpgblob: 51d22 draw.js
7e8b1commit
tree: a10b3parent: nilauthor: Firdcommitter: Matthewmessage:
Major refactoringof the web content.
c67db
blob<html>
<body></body></html>
9ab16
blob//Some more javascriptvar renderSize
51d22
blob7D 8D B3 7F BD 12 9F E97B 78 9D 3F 5C A6 72 CB
8d162
treetree: 7e8b1 webblob: 9ab16 index.html
a10b3 treeblob: 8d162 logo.jpgblob: 51d22 draw.js
7e8b1commit
tree: a10b3parent: nilauthor: Firdcommitter: Matthewmessage:
Major refactoringof the web content.
c67db
blob<html>
<body></body></html>
9ab16
blob//Some more javascriptvar renderSize
51d22
blob7D 8D B3 7F BD 12 9F E97B 78 9D 3F 5C A6 72 CB
8d162
treetree: 7e8b1 webblob: 9ab16 index.html
a10b3 treeblob: 8d162 logo.jpgblob: 51d22 draw.js
7e8b1commit
tree: a10b3parent: nilauthor: Firdcommitter: Matthewmessage:
Major refactoringof the web content.
c67db
blob<html>
<body></body></html>
9ab16
blob//Some more javascriptvar renderSize
51d22
blob7D 8D B3 7F BD 12 9F E97B 78 9D 3F 5C A6 72 CB
8d162
treetree: 7e8b1 webblob: 9ab16 index.html
a10b3 treeblob: 8d162 logo.jpgblob: 51d22 draw.js
7e8b1commit
tree: a10b3parent: nilauthor: Firdcommitter: Matthewmessage:
Major refactoringof the web content.
c67db
blob<html>
<body></body></html>
9ab16
blob//Some more javascriptvar renderSize
51d22
blob7D 8D B3 7F BD 12 9F E97B 78 9D 3F 5C A6 72 CB
8d162
treetree: 7e8b1 webblob: 9ab16 index.html
a10b3 treeblob: 8d162 logo.jpgblob: 51d22 draw.js
7e8b1commit
tree: a10b3parent: nilauthor: Firdcommitter: Matthewmessage:
Major refactoringof the web content.
c67db
blob<html>
<body></body></html>
9ab16
blob//Some more javascriptvar renderSize
51d22
blob7D 8D B3 7F BD 12 9F E97B 78 9D 3F 5C A6 72 CB
8d162
treetree: 7e8b1 webblob: 9ab16 index.html
a10b3 treeblob: 8d162 logo.jpgblob: 51d22 draw.js
7e8b1commit
tree: a10b3parent: nilauthor: Firdcommitter: Matthewmessage:
Major refactoringof the web content.
c67db
blob<html>
<body></body></html>
9ab16
blob//Some more javascriptvar renderSize
51d22
blob7D 8D B3 7F BD 12 9F E97B 78 9D 3F 5C A6 72 CB
8d162
treetree: 7e8b1 webblob: 9ab16 index.html
a10b3 treeblob: 8d162 logo.jpgblob: 51d22 draw.js
7e8b1commit
tree: a10b3parent: nilauthor: Firdcommitter: Matthewmessage:
Major refactoringof the web content.
c67db
blob<html>
<body></body></html>
9ab16
blob//Some more javascriptvar renderSize
51d22
blob7D 8D B3 7F BD 12 9F E97B 78 9D 3F 5C A6 72 CB
8d162
treetree: 7e8b1 webblob: 9ab16 index.html
a10b3 treeblob: 8d162 logo.jpgblob: 51d22 draw.js
7e8b1commit
tree: a10b3parent: nilauthor: Firdcommitter: Matthewmessage:
Major refactoringof the web content.
c67db
blob<html>
<body></body></html>
9ab16
blob//Some more javascriptvar renderSize
51d22
blob7D 8D B3 7F BD 12 9F E97B 78 9D 3F 5C A6 72 CB
8d162
treetree: 7e8b1 webblob: 9ab16 index.html
a10b3 treeblob: 8d162 logo.jpgblob: 51d22 draw.js
7e8b1commit
tree: a10b3parent: nilauthor: Firdcommitter: Matthewmessage:
Major refactoringof the web content.
c67db
blob<html>
<body></body></html>
9ab16
blob//Some more javascriptvar renderSize
51d22
blob7D 8D B3 7F BD 12 9F E97B 78 9D 3F 5C A6 72 CB
8d162
v1 v2 v3
committree: 9a87bparent: nilauthor: Firdcommitter: Matthewmessage:
Major refactoringof the Javascript renderingengine.
c67db
committree: b22c1parent: c67dbauthor: Timcommitter: Firdmessage:
Minor update to HTML
9bd21
committree: b22c1parent: 9bd21author: Johnnycommitter: Joemessage:
New language transations
1c2d7
v1 v2 v3
committree: 9a87bparent: nilauthor: Firdcommitter: Matthewmessage:
Major refactoringof the Javascript renderingengine.
c67db
committree: b22c1parent: c67dbauthor: Timcommitter: Firdmessage:
Minor update to HTML
9bd21
committree: b22c1parent: 9bd21author: Johnnycommitter: Joemessage:
New language transations
1c2d7
v1 v2 v3
committree: 9a87bparent: nilauthor: Firdcommitter: Matthewmessage:
Major refactoringof the Javascript renderingengine.
c67db
committree: b22c1parent: c67dbauthor: Timcommitter: Firdmessage:
Minor update to HTML
9bd21
committree: b22c1parent: 9bd21author: Johnnycommitter: Joemessage:
New language transations
1c2d7
v1 v2 v3
committree: 9a87bparent: nilauthor: Firdcommitter: Matthewmessage:
Major refactoringof the Javascript renderingengine.
c67db
committree: b22c1parent: c67dbauthor: Timcommitter: Firdmessage:
Minor update to HTML
9bd21
committree: b22c1parent: 9bd21author: Johnnycommitter: Joemessage:
New language transations
1c2d7
v1 v2 v3
committree: 9a87bparent: nilauthor: Firdcommitter: Matthewmessage:
Major refactoringof the Javascript renderingengine.
c67db
committree: b22c1parent: c67dbauthor: Timcommitter: Firdmessage:
Minor update to HTML
9bd21
committree: b22c1parent: 9bd21author: Johnnycommitter: Joemessage:
New language transations
1c2d7
v1 v2 v3
committree: 9a87bparent: nilauthor: Firdcommitter: Matthewmessage:
Major refactoringof the Javascript renderingengine.
c67db
committree: b22c1parent: c67dbauthor: Timcommitter: Firdmessage:
Minor update to HTML
9bd21
committree: b22c1parent: 9bd21author: Johnnycommitter: Joemessage:
New language transations
1c2d7
v1 v2 v3
committree: 9a87bparent: nilauthor: Firdcommitter: Matthewmessage:
Major refactoringof the Javascript renderingengine.
c67db
committree: b22c1parent: c67dbauthor: Timcommitter: Firdmessage:
Minor update to HTML
9bd21
committree: b22c1parent: 9bd21author: Johnnycommitter: Joemessage:
New language transations
1c2d7
v1 v2 v3
committree: 9a87bparent: nilauthor: Firdcommitter: Matthewmessage:
Major refactoringof the Javascript renderingengine.
c67db
committree: b22c1parent: c67dbauthor: Timcommitter: Firdmessage:
Minor update to HTML
9bd21
committree: b22c1parent: 9bd21author: Johnnycommitter: Joemessage:
New language transations
1c2d7
RELEASE_1.0 HEAD
bug979branch
commitc67db
commit9bd21
commit1c2d7
commit8c2d1
commit1bdcd
commit2daa1
RELEASE_1.0 HEAD
bug979branch
commitc67db
commit9bd21
commit1c2d7
commit8c2d1
commit1bdcd
commit2daa1
RELEASE_1.0 HEAD
bug979branch
commitc67db
commit9bd21
commit1c2d7
commit8c2d1
commit1bdcd
commit2daa1
RELEASE_1.0 HEAD
bug979branch
commitc67db
commit9bd21
commit1c2d7
commit8c2d1
commit1bdcd
commit2daa1
RELEASE_1.0 HEAD
bug979branch
commitc67db
commit9bd21
commit1c2d7
commit8c2d1
commit1bdcd
commit2daa1
RELEASE_1.0 HEAD
bug979branch
commitc67db
commit9bd21
commit1c2d7
commit8c2d1
commit1bdcd
commit2daa1
> git logcommit 0fc27c73dea82a0576c6cf262fb517d24e75a223Author: Matthew McCullough <[email protected]>Date: Mon Oct 24 10:42:20 2013 +0300
Performance enhancement of calc engine
commit 7d946e814233814b1780ed1035da271cbb37206dAuthor: Matthew McCullough <[email protected]>Date: Mon Oct 24 12:59:41 2013 +0300
Translation to Esperanto
➡How to commit, branch and tag
➡How Git implements a new commit-referencing syntax
➡How to pull and push changes between repositories
➡How to set up a Git repository
➡How to pull and push changes between repositories
> git clone http://this.com/myproj.gitCloning into myproj...remote: Counting objects: 3871, done.remote: Compressing objects: 100% (73/73), done.remote: Total 3871 (delta 51), reused 3853 (delta 36)Receiving objects: 100% (3871/3871), 297.88 KiB | 35 KiB/s, done.Resolving deltas: 100% (51/51), done.
> cd myproj
Local Branches
Remote Branches
Upstream Branches
Working Copy
clone clone clone
> git pushCounting objects: 16, done.Delta compression using up to 2 threads.Compressing objects: 100% (10/10), done.Writing objects: 100% (15/15), 1.37 KiB, done.Total 15 (delta 5), reused 0 (delta 0)To http://this.com/myproj.git 6128b94..7607971 master -> master
Local Branches
Remote Branches
Upstream Branches
Working Copy
pushpush
commit
> git pullUpdating 474f43d..7607971Fast-forward sample5.htm | 1 + 1 files changed, 1 insertions(+), 0 deletions(-) create mode 100644 sample5.htm
Local Branches
Remote Branches
Upstream Branches
Working Copy
pull pull pull
Next: Alex Blewitt on Gerrit
Introduction to Git & Gerrit
at the London JUG
by Matthew McCullough and Alex Blewitt
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