X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=Documentation%2Fcontributor%2Fsource-code.itexi;h=719c85e041ba80021059c338d3c0b1047f76cc13;hb=88a5dbc589b0d0434f8e640467b5ab57d14dc461;hp=ee20d3e76e1b64891ea463c8b4c28155e3876f54;hpb=cf039a0cae992c1437514440478e136c5051e653;p=lilypond.git diff --git a/Documentation/contributor/source-code.itexi b/Documentation/contributor/source-code.itexi index ee20d3e76e..719c85e041 100644 --- a/Documentation/contributor/source-code.itexi +++ b/Documentation/contributor/source-code.itexi @@ -5,7 +5,7 @@ @chapter Working with source code @warning{New contributors should read @ref{Quick start}, and in -particular @ref{Using lily-git}, instead of this chapter.} +particular @ref{lily-git}, instead of this chapter.} Advanced contributors will find this material quite useful, particularly if they are working on major new features. @@ -29,7 +29,7 @@ contributors. If you are comfortable with the command-line, then skip ahead to @ref{Starting with Git}. @warning{These instructions are only for people who are @emph{not} -using @ref{Lilydev}.} +using @ref{LilyDev}.} @c there's some duplication in this section with stuff covered in @c Quick Start, but moving it into a macro inside included/ would @@ -93,10 +93,10 @@ files. @end enumerate @warning{Throughout the rest of this manual, most command-line -input should be entered from @file{~/lilypond-git/}. This is +input should be entered from @file{$LILYPOND_GIT}. This is referred to as the @emph{top source directory}.} -Further instructions are in @ref{Daily use of lily-git.tcl}. +Further instructions are in @ref{How to use lily-git}. @node Starting with Git @@ -160,7 +160,7 @@ The above command will put the it in @file{~/lilypond-git}, where @subsubheading Technical details -This creates (within the @file{~/lilypond-git/} directory) a +This creates (within the @file{$LILYPOND_GIT} directory) a subdirectory called @file{.git/}, which Git uses to keep track of changes to the repository, among other things. Normally you don't need to access it, but it's good to know it's there. @@ -171,7 +171,7 @@ need to access it, but it's good to know it's there. @warning{Throughout the rest of this manual, all command-line input should be entered from the top directory of the Git -repository being discussed (eg. @file{~/lilypond-git/}). This is +repository being discussed (eg. @file{$LILYPOND_GIT}). This is referred to as the @emph{top source directory}.} Before working with the copy of the main LilyPond repository, you @@ -209,16 +209,16 @@ git config --global core.editor @var{nano} @end example Finally, and in some ways most importantly, let's make sure that -we know what branch we're on. If you're not using lilydev, add +we know what branch we're on. If you're not using LilyDev, add this to your @file{~/.bashrc}: @verbatim export PS1="\u@\h \w\$(__git_ps1)$ " @end verbatim -If you are not using lilydev, you may need to install the -additional @code{git-completion} package, but it is definitely -worth it. +You may need to install the additional @code{bash-completion} +package, but it is definitely worth it. After installation +you must log out, and then log back in again to enable it. @subsubheading Technical details @@ -312,7 +312,7 @@ git checkout dev/cg Your prompt now shows you that you're on the other branch: @example -gperciva@@lilydev:~/lilypond-git (dev/cg)$ +gperciva@@LilyDev:~/lilypond-git (dev/cg)$ @end example To be able to manage multiple lilypond issues at once, you'll need to switch @@ -372,7 +372,7 @@ At this stage, don't worry about how many commits you have. Branches are nerve-wracking until you get used to them. You can save your hard work as individual @file{.patch} files. Be sure to -commit your chages first. +commit your changes first. @example git commit -a @@ -526,6 +526,18 @@ a @code{-D}. @node Other repositories @subsection Other repositories +We have a few other code repositories. + +@menu +* lilypond-extra:: +* Grand Unified Builder (GUB):: +* LilyPad:: +* yet more repositories:: +@end menu + +@node lilypond-extra +@unnumberedsubsubsec lilypond-extra + There is a separate repository for general administrative scripts, as well as pictures and media files for the website. People interested in working on the website should download this @@ -537,12 +549,104 @@ environment variable to point to that repository. @end example To configure an environment variable in bash (the default for most -Linux distributions), +GNU/Linux distributions), @example export LILYPOND_WEB_MEDIA_GIT=$HOME/dir/of/lilypond-extra/ @end example +Be aware that @code{lilypond-extra} is the definitive source for some binary +files - in particular PDF versions of papers concerning LilyPond. To add +further PDFs of this sort, all that is necessary is to add the PDF to +@code{lilypond-extra} and then add a reference to it in the documentation. The +file will then be copied to the website when @code{make website} is run. + +However, pictures that are also used in the documentation build are mastered in +the main git repository. If any of these is changed, it should be updated in +git, and then the updates copied to @code{lilypond-extra}. + +@node Grand Unified Builder (GUB) +@unnumberedsubsubsec Grand Unified Builder (GUB) + +Another item of interest might be the Grand Unified Builder, our +cross-platform building tool. Since it is used by other projects as +well, it is not stored in our gub repository. For more info, see +@uref{http://lilypond.org/gub}. + +There are two locations for this repository: the version being used to +build lilypond, which is at + +@example +@uref{http://github.com/gperciva/gub} +@end example + +and the original version by Jan Nieuwenhuizen, kept at + +@example +@uref{http://github.com/janneke/gub} +@end example + + +@node LilyPad +@unnumberedsubsubsec LilyPad + +Our binary releases on MacOS X and Windows contain a lightweight +text editor. + +To make any modifications the Windows editor, you will need to do the +following: + +@enumerate +@item +Clone the git repository from @code{https://github.com/gperciva/lilypad} + +@item +Make changes to the source, and check it compiles. In a Windows environment +@code{MinGW} provides both a @code{Git} installation and a @code{gcc} +compiler. This can be obtained from @code{http://www.mingw.org/} + +@item +Update the version which is contained in the @file{rsrc.rc}. Check +this compiles, too. + +@item +Commit the changes with an informative commit message. + +@item +Push the changes to github. You will need to use syntax similiar to this: + +@example +git push https://UserName@@github.com/gperciva/lilypad.git +@end example + +You will need to have push access to the git repository for this to be +successful. + +@item +Make a tarball of the source code to be used by GUB by pulling the updated +repository from GitHub. Ensure that the tarball has the correct Version +number. + +@item +Copy the tarball to @code{http://lilypond.org/download/gub-sources/lilypad/}. +You will need to have SSH access to @code{lilypond.org}. If you do not, contact +the Release Manager via the lilypond-devel mailing list. + +@item +Update GUB to make it use the new tarball by editing +@file{gub/specs/lilypad.py} and changing the @code{source =} line to point to +the new source. + +@item +Push this updated @file{lilypad.py} version to the GUB repository on GitHub. + +@item +Test the changes with a new GUB compile. + +@end enumerate + +@node yet more repositories +@unnumberedsubsubsec yet more repositories There are a few other repositories floating around, which will hopefully be documented in the near future. @@ -577,13 +681,13 @@ development releases), the documentation (and its translations), and the website. Generally, the @code{master} branch is expected to compile successfully. -The @code{lilypond/translation} branch is a side branch that +The @code{translation} branch is a side branch that allows translators to work without needing to worry about compilation problems. Periodically, the Translation Meister (after verifying that it doesn't break compilation), will -@emph{merge} this branch back into @code{master} to incorporate +@emph{merge} this branch into @code{staging} to incorporate recent translations. Similarly, the @code{master} branch is -usually merged into the @code{lilypond/translation} branch after +usually merged into the @code{translation} branch after significant changes to the English documentation. See @ref{Translating the documentation} for details. @@ -631,11 +735,11 @@ git remote add -ft master -m master \ origin git://git.sv.gnu.org/lilypond.git/ @end example -To download the @code{lilypond/translation} branch, enter: +To download the @code{translation} branch, enter: @example -git remote add -ft lilypond/translation -m \ - lilypond/translation origin git://git.sv.gnu.org/lilypond.git/ +git remote add -ft translation -m \ + translation origin git://git.sv.gnu.org/lilypond.git/ @end example The @command{git@tie{}remote@tie{}add} process could take up to @@ -673,7 +777,7 @@ git checkout -b @var{branch} origin/@var{branch} @noindent where @code{@var{branch}} is the name of your tracking branch, -either @code{master} or @code{lilypond/translation}. +either @code{master} or @code{translation}. Git will issue some warnings; this is normal: @@ -685,7 +789,7 @@ Already on 'master' @end example By now the source files should be accessible---you should be able -to edit any files in the @file{lilypond-git/} directory using a +to edit any files in the @file{$LILYPOND_GIT} directory using a text editor of your choice. But don't start just yet! Before editing any source files, learn how to keep your changes organized and prevent problems later---read @ref{Basic Git procedures}. @@ -730,13 +834,10 @@ branch. @item @code{stable/XYZ}: The branches are kept for archival reasons. -@end itemize +@item @code{archive/XYZ}: +The branches are kept for archival reasons. -Another item of interest might be the Grand Unified Builder, our -cross-platform building tool. Since it is used by projects as -well, it is not stored in our gub repository. For more info, see -@uref{http://lilypond.org/gub}. The git location is -@uref{http://github.com/janneke/gub}. +@end itemize @node Basic Git procedures @@ -860,7 +961,7 @@ changed committishes in the head of translated files using commits you have not yet pushed to @code{git.sv.gnu.org}, please do not rebase. If you want to avoid wondering whether you should rebase each time you pull, please always use committishes from master -and/or lilypond/translation branch on @code{git.sv.gnu.org}, which +and/or translation branch on @code{git.sv.gnu.org}, which in particular implies that you must push your changes to documentation except committishes updates (possibly after having rebased), then update the committishes and push them.} @@ -980,12 +1081,11 @@ git merge @var{foo} If any conflict happens, see @ref{Resolving conflicts}. -There are common usage cases for merging: as a translator, you -will often want to merge @code{master} into -@code{lilypond/translation}; on the other hand, the Translations -meister wants to merge @code{lilypond/translation} into -@code{master} whenever he has checked that -@code{lilypond/translation} builds successfully. +There are common usage cases for merging: as a translator, you will +often want the Translations meister to merge @code{master} into +@code{translation}; on the other hand, the Translations meister wants +to merge @code{translation} into @code{staging} whenever he has +checked that @code{translation} builds successfully. @node Commits and patches @@ -1199,72 +1299,9 @@ code review website: @uref{http://codereview.appspot.com/} @end example -@subsubheading @command{git-cl} install - -LilyDev users should skip over these @q{install} instructions. - -@enumerate - -@item -Install @command{git-cl} by entering: - -@example -git clone https://github.com/gperciva/git-cl.git -@end example - -If that command fails for some reason, try this instead: - -@example -git clone git://github.com/gperciva/git-cl.git -@end example - -@item -Add the @file{git-cl/} directory to your PATH, -or create a symbolic link to the @command{git-cl} -and @command{upload.py} scripts in one of your PATH -directories (such as @file{$HOME/bin}). - -In Ubuntu (and Lilydev), you can add directories to PATH -by adding this line to a hidden file @file{.bashrc}, -located in your home directory: - -@example -PATH=~/type-here-directory-containing-git-cl:"$@{PATH@}" -@end example - -@end enumerate - -@subsubheading @command{git-cl} configuration - -LilyDev users should perform these @q{configuration} instructions. - -@enumerate -@item -You must have a google account; please create one if you do not -have one already. - -Note that a google account does not need to be a gmail account; you can -use any email address for your google account when you sign up. - -@item -Move into the top source directory and then configure @command{git -cl} with the following commands. If you do not understand any -question, just answer with a newline (CR). - -@example -cd $HOME/lilypond-git/ -git cl config -@end example - -The @qq{CC list} question should be answered with: - -@example -lilypond-devel@@gnu.org -@end example - -@end enumerate - -@subsubheading Uploading patch set +You can upload a patch for review by using our custom @code{git-cl} +@q{helper-script}. This section assumes you have already installed, +updated, and configured @code{git-cl}. See @ref{git-cl}. @warning{Unless you are familiar with branches, only work on one set of changes at once.} @@ -1273,15 +1310,16 @@ There are two methods, depending on your git setup. @itemize @item -@strong{Master branch}: (easy option, and used in @command{lily-git.tcl}) +@strong{Master branch}: (easy option) If you added your patch to @code{master}, then: @example git pull -r -git cl upload origin/master +git-cl upload origin/master @end example +@c Mention staging here? If you have git push ability, make sure that you @emph{remove} your patch (with @command{git rebase} or @command{git reset}) before pushing other stuff. @@ -1296,32 +1334,46 @@ option. @item @strong{Separate branch}: (complicated option) -Ensure your changes are committed in a separate branch, which -should differ from the reference branch to be used by just the -changes to be uploaded. If the reference branch is to be -origin/master, ensure this is up-to-date. If necessary, use git -rebase to rebase the branch containing the changes to the head of -origin/master. Finally, check out branch with the changes and -enter the command: +Ensure your changes are committed in a separate branch, which should +differ from the reference branch to be used (usually +@code{origin/master}) by just the changes to be uploaded. Checkout the +branch with the changes: + +@example +git checkout some-branch-with-changes +@end example + +If the reference branch is to be @code{origin/master}, ensure that the +branch containing the changes is up-to-date with it. Use +@command{git rebase} or @command{git pull -r} to rebase the branch to +the head of @code{origin/master}. For example: @example -git cl upload +git pull -r origin master +@end example + +Finally, start the upload by entering: + +@example +git-cl upload @end example @noindent where is the SHA1 ID of the commit to be used as a reference source for the patch. Generally, this will be the -SHA1 ID of origin/master, and in that case the command: +SHA1 ID of origin/master, and in that case you can just use the command: @example -git cl upload origin/master +git-cl upload origin/master @end example -@noindent -can be used. - @end itemize +First you will see a terminal editor where you can edit the +message that will accompany your patch. @command{git-cl} will +respect the @env{EDITOR} environment variable if defined, +otherwise it will use @command{vi} as the default editor. + After prompting for your Google email address and password, the patch set will be posted to Rietveld, and you will be given a URL for your patch. @@ -1353,20 +1405,20 @@ associate the new branch with an existing Rietveld issue, the following command can be used: @example -git cl issue issue-number +git-cl issue issue-number @end example @noindent where @code{issue-number} is the number of the existing Rietveld issue. -@subsubheading Resetting git cl +@subsubheading Resetting git-cl -If @command{git cl} becomes confused, you can @qq{reset} it by +If @command{git-cl} becomes confused, you can @qq{reset} it by running: @example -git cl issue 0 +git-cl issue 0 @end example @subsubheading Wait for a countdown @@ -1397,7 +1449,7 @@ in learning more about git.} It is possible to work with several branches on the same local Git repository; this is especially useful for translators who may have -to deal with both @code{lilypond/translation} and a stable branch, +to deal with both @code{translation} and a stable branch, e.g. @code{stable/2.12}. Some Git commands are introduced first, then a workflow with @@ -1443,7 +1495,7 @@ git pull git://git.sv.gnu.org/lilypond.git/ @var{branch}:origin/@var{branch} @noindent where @code{@var{branch}} is typically @code{master} or -@code{lilypond/translation}; if you do not know or remember, see +@code{translation}; if you do not know or remember, see @ref{Downloading remote branches} to remember which commands you issued or which source code you wanted to get. @@ -1573,7 +1625,7 @@ current branch. For example, if your current branch is @subsubheading Local clones, or having several working trees If you play with several Git branches, e.g. @code{master}, -@code{lilypond/translation}, @code{stable/2.12}), you may want to +@code{translation}, @code{stable/2.12}), you may want to have one source and build tree for each branch; this is possible with subdirectories of your local Git repository, used as local cloned subrepositories. To create a local clone for the branch @@ -1644,10 +1696,10 @@ git am @var{patch} Patches created without @code{git@tie{}format-patch} can be applied in two steps. The first step is to apply the patch to the -working tree: +working tree and the index: @example -git apply @var{patch} +git apply --index @var{patch} @end example @noindent @@ -1655,9 +1707,16 @@ The second step is to commit the changes and give credit to the author of the patch. This can be done with the following command: @example -git commit -a --author="@var{John Smith} <@var{john@@example.com}>" +git commit --author="@var{John Smith} <@var{john@@example.com}>" @end example +Please note that using the @code{--index} option for patching is quite +important here and @emph{cannot} reliably be replaced by using the +@code{-a} option when committing: that would only commit files from the +working tree that are already registered with git, so every file that +the patch actually @emph{adds}, like a regtest for a fixed bug, would +get lost. For the same reason, you should not use the git-independent +@samp{patch} program for applying patches. @node Sending and receiving patches via email @subsection Sending and receiving patches via email @@ -1993,6 +2052,15 @@ patch has been lost. Note that you can check the commits on @code{origin/staging} by looking at the git web interface on savannah. +It may happen occasionally that the staging branch breaks automated +testing. In this case the automatic move of staging material to +master gets halted in order to avoid broken material entering master. +This is a safety net. Please do not try breaking out from it by +adding fixes on top of staging: in that case the whole sequence will +end up in master after all, defeating the purpose of the system. The +proper fix usually involves rewriting the staging branch and is best +left to core developers after discussion on the developer list. + @subsubheading If your work is in a patch file Assuming that your patch is in a file called @@ -2037,7 +2105,7 @@ later on. You should see that @code{staging} is only ahead of @section Git on Windows @warning{We heavily recommend that development be done with our -virtual machine @ref{Lilydev}.} +virtual machine @ref{LilyDev}.} @c Some of this may duplicate stuff in other sections @c But it is probably best for windows users to have it all together