GNOME package guidelines

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Arch package guidelines

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The GNOME packages on Arch Linux follow a certain schema.

Source URL

This topic contains the most commonly used source URL used by GNOME packages in both official repositories and AUR. For examples, search for GNOME packages in the official repositories[1] and in the AUR[2]

Using released tarball

When downloading a released tarball, you can get it from https://download.gnome.org using the following source array:

source=("https://download.gnome.org/sources/$pkgname/${pkgver%.*}/$pkgname-$pkgver.tar.xz")

where ${pkgver%.*} returns the major.minor package version, by removing the suffix of pkgver (which is the micro package version). E.g., if pkgver=3.28.0 then ${pkgver%.*} would return 3.28.

Using a commit from Git repository

Another common practice is to use as source a specific commit from a GNOME software's source code git repository. It does not classify as VCS package because Pacman's feature of setting specific commit (see PKGBUILD(5) § USING VCS SOURCES) makes PKGBUILD not follow latest development commits neither update the pkgver field, using the source from the specified commit hash instead.

See a template below:

PKGBUILD

makedepends=(git)
_commit=hash_of_a_commit 
source=("git+https://gitlab.gnome.org/GNOME/$pkgname.git#commit=$_commit")
md5sums=('SKIP')

pkgver() {
  cd $pkgname
  git describe --tags | sed 's/-/+/g'
}

Replace hash_of_a_commit with the Git commit hash desired.

Please notice that since the source is downloaded with git, then git must be in makedepends and checksums must be set to 'SKIP', just like it would happen with any other VCS package. Using pkgver() function is highly recommended, so it sets pkgver accordingly for the commit hash provided.

Note: GNOME previously used https://git.gnome.org, but then migrated to https://gitlab.gnome.org [3]. Old links should automatically redirect to the new gitlab.gnome.org domain, but it might be wise to manually update your source URL.

GConf schemas

Some GNOME packages install GConf schemas, even though many others already migrated to GSettings. Those packages should depend on gconf^AUR.

Gconf schemas get installed in the system GConf database, which has to be avoided. Some packages provide a --disable-schemas-install switch for ./configure, which hardly ever works. However, gconftool-2 has a variable called GCONF_DISABLE_MAKEFILE_SCHEMA_INSTALL which you can set to tell gconftool-2 to not update any databases.

When creating packages that install GConf schema files, use

make GCONF_DISABLE_MAKEFILE_SCHEMA_INSTALL=1 DESTDIR=${pkgdir} install

for the package installation step in the PKGBUILD.

Do not call gconfpkg in the .install file, as GConf schemas are automatically installed/removed (while installing/removing the GNOME package) via pacman hooks since gconf^AUR=3.2.6-4

GSettings schemas

The GConf schemas were migrated to GSettings schemas, so many GNOME applications can be found using this new schema file. GSettings uses dconf as backend, so all packages that contain GSettings schemas require dconf as dependency. When a new GSettings schema installed on the system, the GSettings database has to be recompiled, but not when packaging.

To avoid recompiling GSettings database on packaging, use the --disable-schemas-compile switch for ./configure.

Do not call glib-compile-schemas in the .install file, as GSettings schema databases are automatically recompiled via pacman hooks since glib2=2.48.0-2.

Scrollkeeper documentation

Starting from GNOME 2.20 there is no need to handle scrollkeeper anymore, as rarian^AUR reads its OMF files directly. Scrollkeeper-update is a dummy these days. The only required thing now is to makedepend on gnome-doc-utils^AUR>=0.11.2.

It can be disabled using --disable-scrollkeeper switch from ./configure.

GTK icon cache

Quite a few packages install icons in the hicolor icon theme.

Do not call gtk-update-icon-cache in the .install file, as the icon cache is updated via pacman hooks since gtk-update-icon-cache=3.20.3-2. These packages should not depend on gtk-update-icon-cache, as any application which makes use of gtk icon caches will install the package with the hook and do a full, retroactive cache update.

.desktop files

Many packages install Freedesktop.org compatible .desktop files and register MimeType entries in them.

Do not call update-desktop-database in the .install file, as the database is automatically updated via pacman hooks since desktop-file-utils=0.22-2. They should not depend on desktop-file-utils, as any desktop which makes use of desktop files will install the package with the hook and do a full, retroactive database update.

.install files

Previously, most of the GNOME packages had a .install file calling commands like glib-compile-schemas, gtk-update-icon-cache, and update-desktop-database in order to install/update local cache or databases. This is deprecated since pacman 5.0 implemented hooks which call those commands automatically when installing the package.

To avoid being called twice, the above mentioned commands should be removed from .install file.