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diff --git a/usth/ICT2.7/P1L4 Version Control Subtitles/9 - Two Main Types of VCS - lang_en_vs5.srt b/usth/ICT2.7/P1L4 Version Control Subtitles/9 - Two Main Types of VCS - lang_en_vs5.srt deleted file mode 100644 index 3c6eba4..0000000 --- a/usth/ICT2.7/P1L4 Version Control Subtitles/9 - Two Main Types of VCS - lang_en_vs5.srt +++ /dev/null @@ -1,163 +0,0 @@ -1 -00:00:00,160 --> 00:00:01,970 -Something else I want to mention is that there - -2 -00:00:01,970 --> 00:00:05,460 -are many different version control systems but we can classify - -3 -00:00:05,460 --> 00:00:09,250 -them normally in two main types: centralized VCS's and - -4 -00:00:09,250 --> 00:00:13,230 -decentralized VCS's. So what is the difference between these two? - -5 -00:00:13,230 --> 00:00:16,750 -Let's use again our friends Janet and Brett. - -6 -00:00:16,750 --> 00:00:19,510 -In the case of a centralized version control system - -7 -00:00:19,510 --> 00:00:22,290 -there is a single centralized, as the name says, - -8 -00:00:22,290 --> 00:00:25,230 -repository. On which they are commiting their files. So when - -9 -00:00:25,230 --> 00:00:27,290 -Janet commits a file. The file will go from - -10 -00:00:27,290 --> 00:00:30,390 -her local working directory to the repository, and the same - -11 -00:00:30,390 --> 00:00:33,520 -will happen to Brett. The decentralized system is a little - -12 -00:00:33,520 --> 00:00:37,310 -more interesting because in this case, they will both have - -13 -00:00:37,310 --> 00:00:40,790 -sort of a local repository in which they can commit - -14 -00:00:40,790 --> 00:00:43,970 -their changes. So they can commit changes without the other - -15 -00:00:43,970 --> 00:00:47,940 -users of the VCS being able to see these changes. - -16 -00:00:47,940 --> 00:00:50,300 -And when they're happy with the version. And when they're - -17 -00:00:50,300 --> 00:00:53,900 -ready to release the version, they can push it to a central - -18 -00:00:53,900 --> 00:00:56,840 -repository. And at that point, it will become available to the other - -19 -00:00:56,840 --> 00:01:01,100 -users of the repository. To the other users of the VCS. There - -20 -00:01:01,100 --> 00:01:02,870 -are several advantages in a distributive - -21 -00:01:02,870 --> 00:01:04,300 -system. I'm just going to mention a few, - -22 -00:01:04,300 --> 00:01:07,520 -because there are really many. One is the fact of having this - -23 -00:01:07,520 --> 00:01:10,570 -local version. If you used VCS before, I'm sure you've been in - -24 -00:01:10,570 --> 00:01:13,280 -the situation in which you want to kind of take a snapshot - -25 -00:01:13,280 --> 00:01:15,820 -of what you have. But you don't want that snapshot to be available - -26 -00:01:15,820 --> 00:01:18,200 -to the other users. Because it's still not ready to be - -27 -00:01:18,200 --> 00:01:21,240 -released, to be looked up. If you're using a centralized system, - -28 -00:01:21,240 --> 00:01:23,140 -there's really no way you can do that, unless you make - -29 -00:01:23,140 --> 00:01:25,150 -a local copy, which is something we said you don't want - -30 -00:01:25,150 --> 00:01:28,625 -to do. With a distributor, with a decentralized VCS you can - -31 -00:01:28,625 --> 00:01:32,444 -commit your local changes here, in your local repository, and you - -32 -00:01:32,444 --> 00:01:37,030 -can push them to the central repository only when you're ready. - -33 -00:01:37,030 --> 00:01:40,870 -Another big advantage, is that you can use multiple remote repository. - -34 -00:01:40,870 --> 00:01:43,210 -In fact, centralized is not the right name for this - -35 -00:01:43,210 --> 00:01:45,980 -one. This is just a remote repository, and I can have - -36 -00:01:45,980 --> 00:01:48,910 -more than one. For example, Brad might want to push - -37 -00:01:48,910 --> 00:01:52,150 -to another remote repository. As well. For instance, this could be - -38 -00:01:52,150 --> 00:01:55,940 -a repository where the files are accessible for wider distribution. - -39 -00:01:55,940 --> 00:01:59,620 -Imagine developing a software system in which a team is sharing - -40 -00:01:59,620 --> 00:02:02,930 -internal versions, and then only some of these versions are actually - -41 -00:02:02,930 --> 00:02:06,080 -pushed to the repository that is seeable to the whole world. |