X-Git-Url: http://git.annexia.org/?p=libguestfs.git;a=blobdiff_plain;f=HACKING;h=42f0f3aa13d26bb699f139b6abaa0067f6f745bf;hp=c6a302278970d20e9370d8b7d6de4356ebc7c2a6;hb=fab75c0337d7897d10ea5e95e47ac05eab81ace9;hpb=2f1a50d81671810256dce0852e6b1e0810ac44af diff --git a/HACKING b/HACKING index c6a3022..42f0f3a 100644 --- a/HACKING +++ b/HACKING @@ -7,8 +7,8 @@ Adding a new action All action functions are generated automatically, so there are only two files you need to edit: -(1) src/generator.ml: Add your new action, parameters, description, -etc. to the big list called 'functions' at the top of this file. +(1) generator/generator_actions.ml: Add your new action, parameters, +description, etc. to the big list at the top of this file. (2) Edit/create a C file in daemon/ subdirectory which implements your 'do_action' function. Take a look at one of the numerous examples @@ -24,36 +24,87 @@ Please make sure that the code compiles without warnings. Please test any changes. +Useful targets: + make syntax-check Checks the syntax of the C code. + make check Runs the test suite. + +Enable warnings, and fix any you find: + ./configure --enable-gcc-warnings + +Code indentation +---------------------------------------------------------------------- +Our C source code generally adheres to some basic code-formatting +conventions. The existing code base is not totally consistent on this +front, but we do prefer that contributed code be formatted similarly. +In short, use spaces-not-TABs for indentation, use 2 spaces for each +indentation level, and other than that, follow the K&R style. + +If you use Emacs, add the following to one of one of your start-up files +(e.g., ~/.emacs), to help ensure that you get indentation right: + + ;;; In libguestfs, indent with spaces everywhere (not TABs). + ;;; Exceptions: Makefile and ChangeLog modes. + (add-hook 'find-file-hook + '(lambda () (if (and buffer-file-name + (string-match "/libguestfs\\>" (buffer-file-name)) + (not (string-equal mode-name "Change Log")) + (not (string-equal mode-name "Makefile"))) + (setq indent-tabs-mode nil)))) + + ;;; When editing C sources in libguestfs, use this style. + (defun libguestfs-c-mode () + "C mode with adjusted defaults for use with libguestfs." + (interactive) + (c-set-style "K&R") + (setq c-indent-level 2) + (setq c-basic-offset 2)) + (add-hook 'c-mode-hook + '(lambda () (if (string-match "/libguestfs\\>" (buffer-file-name)) + (libguestfs-c-mode)))) + Directories ---------------------------------------------------------------------- appliance/ The qemu appliance, build scripts and so on. -cat/ - The virt-cat tool. - capitests/ Automated tests of the C API. +cat/ + The 'virt-cat' command and documentation. + contrib/ Outside contributions, experimental parts. +csharp/ + Experimental C# bindings. + daemon/ The daemon that runs inside the guest and carries out actions. -df/ - The virt-df tool. - examples/ The examples. fish/ Guestfish (the command-line program / shell) +fuse/ + FUSE (userspace filesystem) built on top of libguestfs. + +generator/ + The crucially important generator, used to automatically + generate large amounts of boilerplate C code for things like + RPC and bindings. + haskell/ Haskell bindings. +hivex/ [removed in 1.0.85] + This used to contain the hivex library for reading and + writing Windows Registry binary hive files. This is now + available as a separate upstream project. + images/ Some guest images to test against. These are gzipped to save space. You have to unzip them before use. @@ -72,8 +123,17 @@ m4/ ocaml/ OCaml bindings. +php/ + PHP bindings. + po/ - Translations. + Translations of simple gettext strings. For translations of + longer documents, see po-docs/. + +po-docs/ + The build infrastructure and PO files for translations of + manpages and POD files. Eventually this will be combined + with the po/ directory, but that is rather complicated. perl/ Perl bindings. @@ -87,16 +147,15 @@ regressions/ ruby/ Ruby bindings. +tools/ + Command line tools like virt-df, virt-edit and more. + src/ Source code to the C library. - Also contains the crucial generator program. test-tool/ Interactive qemu/kernel test tool. -v2v/ - Xen to KVM (V2V) conversion tool. - Debugging ----------------------------------------------------------------------