About CVS write access: ~~~~~~~~~~~~~~~~~~~~~~~ I. TECH SIDE: ============= 1. Changing password: As you probably got a restricted CVS-only shell, it's not trivial: ssh LOGIN@mplayerhq.hu passwd Replace LOGIN with your login name. Leave 'passwd' unchanged, it's a command. Note: If you need a real shell for something, tell A'rpi. 2. Checking out development source tree: export CVS_RSH=ssh cvs -z3 -d:ext:LOGIN@mplayerhq.hu:/cvsroot/mplayer co main NOTE: cvs -d:pserver: mode doesn't allow writing, even with password! 3. Committing changes: cvs -z3 commit -m "comment - what you changed and why" filename(s) Do not use comments such as: "bug fix." or "files changed" or "dunno". You don't have to include the filename in the comment, as comments are linked to files. If you have different comments for different files, commit them separately, not at the same time. If you leave out -m at the command line you will be prompted for a comment in an editor. 4. Adding new files/dirs: cvs add filename/dirname 5. Removing files: rm filename cvs remove filename cvs commit -m "reason for removing this file" filename 6. Checking changes: cvs -z3 diff -u filename(s) It's recommended to check changes before committing. especially if you forget what you changed :) This way you will see if your patch has debug stuff or indentation changes and you can fix it before committing and triggering me to use cvs-backup. 7. Checking changelog: cvs -z3 log filename(s) 8. Renaming/moving files or content of files: You CANNOT do that. Ask the CVS server admin (A'rpi) to do it! Do NOT remove & re-add a file - it will kill the changelog!!!! Don't do a lot of cut'n'paste from one file to another without a very good reason and discuss it on the mplayer-dev-eng mailing list first. It will make those changes untraceable! Such actions are useless and treated as cosmetics in 99% of cases, so try to avoid them. Contact A'rpi if you have technical problems with the CVS server. II. POLICY / RULES: =================== 1. You shouldn't commit code which breaks MPlayer! (Meaning unfinished but enabled code which breaks compilation or compiles but does not work.) 2. You don't have to over-test things. If it works for you, and you think it should work for others, too, then commit. If your code has problems (portability, exploits compiler bugs, unusual environment etc) they will be reported and eventually fixed. 3. You can commit unfinished stuff (for testing etc), but it must be disabled (#ifdef etc) by default. 4. Do not change behavior of the program (renaming options etc) without discussing it first at the mplayer-dev-eng mailing list. Do not remove functionality from the code. Just improve! Do not commit changes to the build system (Makefiles, configure script) which change behaviour, defaults etc, without asking (and your change being accepted) on the mplayer-dev-eng mailing list first. The same applies to compiler warning fixes and trivial looking fixes. We usually have a reason for doing things the way we do. Send them as patches to the mailing list, and if the code maintainers say OK, you may commit. This does not apply to files written and/or maintained by you. 5. We refuse source indentation and other cosmetical changes, such commits will be rejected and removed. Every developer has his own indentation style, you should not change it. Of course if you (re)write something, you can use your own style... (Many projects force a given indentation style - we don't.) Note: If you had to put if(){ .. } over a large (> 5 lines) chunk of code, do NOT change the indentation of the inner part (move it right)! 6. Always fill out the comment at committing (-m switch of CVS, or in the editor if you left out -m). Describe in a few lines (usually one line is enough) what you changed and why. You can refer to mailing list postings if you fix a particular bug. Comments such as "fixed!" or "Changed it." are not acceptable. 7. If you apply a patch by someone else, include his name and email address in the CVS comment! Do NOT commit patches for other developer's code (code not maintained by you) without his permission! If he didn't commit - he probably has a reason! 8. A'rpi developed something called cvs-backup. It archives the CVS repository after each commit - so commits can be reversed (without messing up the changelog) if they are bad. If you think your bug fix or other change was bad and unneeded, ask A'rpi to reverse it instead of committing the previous version! 9. You will have write access to DOCS/. This used to be different to avoid breaking docs or getting translations or the homepage desynced. If you are unsure about this, send a patch to dev-eng, the documentation maintainers will review and commit your stuff. Also read patches.txt !!!! We think our rules are not too hard. If you have comments, contact us. III. Beginners Guide by David Holm ==================== When I first got CVS write access I got banned after only a few hours because I didn't fully understand this documentation. This part is for those of you who have just got CVS write access and want to avoid the most common pitfalls leading to CVS ban. I will introduce a step-by-step guide explaining how I'm making sure that my CVS commits are proper and won't get me banned. 1. You should set up two directoress for MPlayer, one which contains the stable version and has the :ext: option instead of :pserver: in CVS/Root. The other should be your development directory and have the CVS/Root set to :pserver: instead of :ext:, that way you can't commit development code by accident (since only :ext: allows writes). This is my setup: ~/mplayer /main /main.dev NOTE: I'll use these directory names from here on in the guide, what you call your directories is entirely up to you. This is _only_ an example. 2. When you are satisfied with the changes in "main.dev" and think you are ready to commit the changes to CVS start by doing the following in the "~/mplayer" dir": diff -Nur -x "CVS" -x ".*" main main.dev > dev2stable dev2stable is the filename for the patchfile, it doesn't matter what you call it. 3. Now comes one of the tricky parts, editing the patch. I prefer using mcedit (comes with Midnight Commander) since it does syntax highlighting in patches (= it uses colors to identify lines =), But most ASCII editors should do (meaning don't use Star Office and save it as a Star Office document for instance ;) I will try to explain this as good as I can. Read through the patch and remove all occurrences of: * diff -Nur.... that are affecting files YOU have NOT modified. These occur when either main or main.dev are a different version (not checked out at the same time) EVERYTHING from the diff -Nur... line until the next diff -Nur... line are changes to the file specified after the diff options, and ONLY that file. * Lines containing "Binary files..." if you add the 'a' switch to -N(a)ur binary files will be added to the patch as well, making it huge and putting a lot of unnecessary data in it (since you seldom commit any binaries). * If you find changes within a diff block that you don't want to commit you can delete them if they are the only changes ranging from the @@ -x,y +x,y @@ until the line before the next @@ -x,y +x,y @@. You _cannot_ remove single lines after a @@ -x,y +x,y @@ because that will break the patch!. Example: ... @@ -15,34 +15,6 @@ - old_option; + new_option; @@ -65,13 +65,3 @@ ... OK: ... @@ -65,13 +65,3 @@ ... Will break patch: ... @@ -15,34 +15,6 @@ old_option; @@ -65,13 +65,3 @@ ... When I end up in a situation where I have to remove just some lines from a block, I leave it alone, remember (write down) which file it is in and then edit the file in "main" after I've applied the patch. * Now it's time for applying the patch to the "main" (stable) directory. This should be done in two steps: 1. enter "main" and run patch -p1 --dry-run < ../dev2stable -p1 means that you are one level deep (that you have entered the "main" directory and that should be stripped when patching, if you run it from "~/mplayer" you would use -p0). --dry-run means that patch does everything it normally does but without modifying ANY files. This is a great way of testing whether your patch works or not. "../dev2stable" is your patchfile. (don't forget the '<') If the dry run fails, check the line it failed on and figure out why it failed, make a new patch and try again. 2. OK, you finally have a working patch, remove --dry-run, patch "main" and you are done with the patching part =). 4. It's almost time for the final step, committing the changes. But first you MUST make sure your changes compile without breaking anything and that it follows the Policy mentioned in section 2. (Read it until your eyes are bleeding if you want to keep CVS access!) Don't worry about object files etc that will be created in your "main" dir, they won't be sent to CVS on a commit, you must use the add command to add new files (discuss it on dev-eng before adding new files!). Now to make sure your additions follow policy do the following on every file you will commit: cvs -z3 diff -u > Of course the output file () can have any name you want. This will create a file showing the differences between the file on CVS and your updated local file. I will explain some of the policy rules I had a hard time understanding: II.5: This means that if for instance you have lines in that look something like this: - + That means you have added or removed tabs or spaces on that line. That qualifies as a cosmetical change and is disallowed. Edit the file and put back/remove the added/removed tabs/spaces. Rediff the file and make sure the cosmetic changes are fixed. II.6: Make sure you read and understand this properly before committing anything. Commit one file at a time! 5. OK, you have a working patch following the CVS policy, excellent work. Now for the final step, committing. This is really simple. Just run the following command in "main" for each file you want to commit: cvs -z3 commit -m "" cvs -z3 commit The latter will bring up your default text editor for writing comments (I prefer this method). You are done, congratulations. If you are certain you have followed all of the policy you shouldn't have any trouble with the CVS maintainers at all. At first I thought the policy was too strict, but I discussed it with A'rpi and he made some very good points, so don't complain.