Git dirctet acyclic graph - children know their parents but not the other way around

Posted by dayscott on Stack Overflow See other posts from Stack Overflow or by dayscott
Published on 2010-03-16T10:30:26Z Indexed on 2010/03/16 10:36 UTC
Read the original article Hit count: 322

Filed under:

git

|

theory

|

graph

|

version-control

Git is implemented as a directed acyclic graph. Children know their parents but not the other way round. This makes sense because i can reach every commit only through a branch or a tag ( generally speaking through a reference). That's how i traverse the tree. What other reasons had the developers of Git to make "the children know their parents but not the other way around"?/ What are the key benefits of this?

© Stack Overflow or respective owner

Related posts about git

git pull gives error: 401 Authorization Required while accessing https://git.foo.com/bar.git

as seen on Stack Overflow - Search for 'Stack Overflow'
My macbook pro is able to clone/push/pull from the company git server. My cent 6.3 vm gets a 401 error git clone https://git.acme.com/git/torque-setup "error: The requested URL returned error: 401 Authorization Required while accessing https://git.acme.com/git/torque-setup/info/refs As a work… >>> More
Can't install git on Ubuntu 12.10

as seen on Ask Ubuntu - Search for 'Ask Ubuntu'
I'm following these instructions to install git on my laptop: http://git-scm.com/download/linux When I do: $ sudo apt-get install git-core This is what my terinal shows: Reading package lists... Done Building dependency tree Reading state information... Done The following packages… >>> More
Git apache : unable to push via http

as seen on Server Fault - Search for 'Server Fault'
I have to setup a server which can allow http vcs management (such as git and svn). svn support works well, but I have some trouble with git. Actual configuration: CentOS 5 Apache 2.2.8 Git 1.7.4.1 The /etc/httpd/conf/httpd.conf content: ServerTokens OS ServerRoot "/etc/httpd" PidFile run/httpd… >>> More
git on HTTP with gitolite and nginx

as seen on Server Fault - Search for 'Server Fault'
I am trying to setup a server where my git repo would be accessible with HTTP(S). I am using gitolite and nginx (and gitlab for web interface but I doubt it makes any difference). I have searched the whole afternoon and I think I'm stuck. I have think I have understood that nginx needs fcgiwrap… >>> More
Redmine git integration - issue in accessing git from redmine but not from external git client

as seen on Server Fault - Search for 'Server Fault'
I have setup redmine integration with apache as described in the redmine documentation. I have a /git path accessible with auth and /git-private accessible only to redmine. When I clone the repository through /git path, I get the up-to-date repo. But when I try to view it in redmine repo viewer, I… >>> More

Related posts about theory

Why does NUnit ignore datapoints when using generics in a theory

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm trying to make use of the TheoryAttribute, introduced in NUnit 2.5. Everything works fine as long as the arguments are of a defined type: [Datapoint] public double[,] Array2X2 = new double[,] { { 1, 0 }, { 0, 1 } }; [Theory] public void TestForArbitraryArray(double[,] array) { // ... } It… >>> More
How do you deal with translating theory into practice?

as seen on Programmers - Search for 'Programmers'
Hello all! Being a computer scientist in a research field I am often tasked with working alongside professionals outside of the software domain (think math people, electrical engineer etc), and then translating their theories and ideas into real-world implementations. I often find it difficult when… >>> More
Title Tag Optimization - Common Grounds Between Raw SEO Theory & Search Engine Marketing Priorities

as seen on Ezine Articles - Search for 'Ezine Articles'
All you have to know about how to properly optimize title tag if you're just starting an onpage optimization campaign. Plus some easy to implement marketing tips to attract endless visitors to your content. >>> More
Database theory - relationship between two tables

as seen on Stack Overflow - Search for 'Stack Overflow'
I have a database with two tables - let's call them Foo and Bar. Each foo may be related to any number of bars, and each bar may be related to any number of foos. I want to be able to retrieve, with one query, the foos that are associated with a certain bar, and the bars that are associated with a… >>> More
Recommended book about parallel programming - theory & best practice?

as seen on Stack Overflow - Search for 'Stack Overflow'
I'm looking for a book or books about multicore, multithreaded programming. The perfect book should focus on best practices and maybe include a bit of theory background. I'm not interested in a book which only describes a single library and focuses on its API. OS actually doesn't matter. >>> More