svn and git versioning models difference -


I would like to know what the difference between approaches suggested by GIT (or other DCCs) and undertaking (or other CVCS) ).

This topic has been found about me:

The form of a pre-order mananges is the version of trees as the first order object (an array of repository trees) , And changes are things that compare adjacent trees. Systems like Arc or Betacitor are created in another way: they are designed to manage changes in the form of first order objects (a bag of repository patches), and trees are obtained by preparing the sets with patches .

But it is not clear how the subdivision store reserves change, even if it is the oldest version of the current file and so on. In the case of git, for example, why can not you create a bunch of patches? It is always mentioned as the main difference between SVN and GIT which makes merge simplified / complex, but unfortunately, I still do not get the idea.

There is a good explanation about the main difference between the changes and VCS based on snapshots. I will not repeat it here.

However, I want to put pressure on a point which can not be clear before. Changeset-based VCSs really make it easy to track mergers, which is very difficult for systems like subversion, which is based on snapshots.

VCS based on one of the changes, only changes in merges (or, as they are called in 'GIT') in which there are more than one parent changes, the graphical representation of the repository is usually Shows a DAG (guided escal graph) where nodes represent changes and arrows represent parent-child relationships. When you see a node with more than one parent, then you know what kind of merge has happened.

In the subdivision, "Merge tracking" is something new, up to version 1.4, there was no such concept, so you had to note in the log messages of your commodity to know about the merger history. Version 1.5 used merge tracking to make it easy to disseminate the user from one branch to another, to make it clear about the modified categories and preference, tracking applied it with a property (svn: mergeinfo) Which is linked to the directory receiving the merge. It tracks which branches are already merged. It is enough to estimate which modification should be merged in the subsequent merger. But it does not make it easy to attract the graph showing merge history, which you would like to see often while working in a complex project with some developers.


Comments

Post a Comment

Popular posts from this blog

sql - dynamically varied number of conditions in the 'where' statement using LINQ -

I am using my first project LINQ (in mvc), so maybe there's something very simple that I remember. However, a day of searching and experimenting does not work, so it works. I am trying to write a LINQ query (Linux to SQL) in which in many cases where the statement is different from an OR or an AND. We do not know how many conditions are going in the query till runtime. This search is for filter control, where the user can choose multiple criteria for filtering. Select from table where table.col = 1 or table.col = 2 or table.col = 7 .... 'Other number of conditions Before I just create the SQL query as a string, while looping over all the situations. However, it seems that there should be a good way to do this in LINQ. I tried to use Expression trees, but they had a second thought for this moment on my head, where the lambda function was to be executed inside the statement such as: values ​​for matchingRows = matchingRows for each value Where (function (row) row.c...
Read more

asp.net mvc - Dynamically Generated Ajax.BeginForm -

I have a problem with ASP.NET MVC Ajax forms. I generate many Ajax form in a table such as: & Lt; Input type = "submit" name = "activity" value = "add activity" / & gt; & Lt;%}% & gt; & Lt; / TD & gt; & Lt; / TR & gt; & Lt;%}% & gt; So far so good. When I post one of those forms, it gives a partial view in a div, and in this new partial view a new Ajax Beginnform (which is not in Genesis form) This second Ajax Beginnorf is exactly like the ones I got on the table, but when I post it, I do not get the "Ajax Post", but a normal post that sends me to a new page, I do not know whether the two Ajax forms What is the reason for the difference between, why is it the "dynamically generated" Ajax form behaves like a normal HTML form? By the way, I know that I can do it in different ways using javascript, but I would like to understand whether it can only be done using MVC helplars and Ajax lib...
Read more

Debug on symbian -

I am using trk for phone debug This works well for the Holorld project But when I start the project in phone debug mode 1) the load failed 2) TrkProtocolPlugin: to target the specified file Failure (please verify If any body understands what problem I am experiencing, then this problem helps me Pre-release If the application has the privileges assigned (with the appropriate certificate) itemprop = "text" > In your case, I will check: / li> If there is no conflict of application ID with any other application of device If there are problematic commands in the installation package (for example copy copy for non-accessible directories)
Read more