Difference between revisions of "VCS package guidelines"

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m (Subversion: add quotes)
m (A sample Git PKGBUILD: minor improvements to example PKGBUILD)
Line 115: Line 115:
 
  license=('MIT')
 
  license=('MIT')
 
  depends=('pacman')
 
  depends=('pacman')
  makedepends=('git' 'perl')
+
  makedepends=('git')
 
  conflicts=('expac')
 
  conflicts=('expac')
 
  provides=('expac')
 
  provides=('expac')
Line 130: Line 130:
 
   cd "$pkgname"
 
   cd "$pkgname"
 
   # Use the tag of the last commit
 
   # Use the tag of the last commit
   local ver=$(git describe --always)
+
   local ver="$(git describe --always)"
 
   printf "%s" "${ver//-/.}"
 
   printf "%s" "${ver//-/.}"
 
  }
 
  }
Line 142: Line 142:
 
   cd "$pkgname"
 
   cd "$pkgname"
 
   make PREFIX=/usr DESTDIR="$pkgdir" install
 
   make PREFIX=/usr DESTDIR="$pkgdir" install
   install -Dm644 "$srcdir"/expac_icon.png "$pkgdir"/usr/share/pixmaps/expac.png
+
   install -Dm644 "${srcdir}/expac_icon.png" "${pkgdir}/usr/share/pixmaps/expac.png"
 
  }
 
  }

Revision as of 03:26, 13 September 2013

Template:Package Guidelines

Version control systems can be used for retrieval of source code for both usual statically versioned packages and latest (trunk) version of a development branch. This article covers both cases.

Prototypes

The ABS package provides prototypes for cvs, svn, git, mercurial, and darcs PKGBUILDs. When abs is installed, you can find them in /usr/share/pacman. Latest versions can be found in the prototypes directory in the ABS Git repository.

Guidelines

  • Suffix pkgname with -cvs, -svn, -hg, -darcs, -bzr, -git etc. unless the package fetches a specific release.
  • If the resulting package is different after changing the dependencies, URL, sources, etc. increasing the pkgrel is mandatory. Touching the pkgver isn't.
  • Include what the package conflicts with and provides (e.g. for fluxbox-gitAUR: conflicts=('fluxbox') and provides=('fluxbox')).
  • replaces=() generally causes unnecessary problems and should be avoided.
  • When using the cvsroot, use anonymous:@ rather than anonymous@ to avoid having to enter a blank password or anonymous:password@, if one is required.
  • Include the appropriate VCS tool in makedepends=() (cvs, subversion, git, ...).

VCS sources

Note: Pacman 4.1 supports the following VCS sources: bzr, git, hg and svn. See the fragment section of man PKGBUILD or PKGBUILD(5) for a list of supported VCS.

Starting with pacman 4.1, the VCS sources should be specified in the source=() array and will be treated like any other source. makepkg will clone/checkout/branch the repo into $SRCDEST (same as $startdir if not set in makepkg.conf(5)) and copy it to $srcdir (in a specific way to each VCS). The local repo is left untouched, thus invalidating the need for a -build directory.

The general format of a VCS source=() array is:

source=('[folder::][vcs+]url[#fragment]')
  • folder (optional) is used to change the default repo name to something more relevant (e.g. than trunk) or to preserve the previous sources
  • vcs+ is needed for URLs that do not reflect the VCS type, e.g. git+http://some_repo.
  • url is the URL to the distant or local repo
  • #fragment (optional) is needed to pull a specific branch or commit

An example Git source array:

source=('project_name::git+http://project_url#branch=project_branch')

The pkgver() function

The pkgver autobump is now achieved via a dedicated pkgver() function. This allows for better control over the pkgver, and maintainers should favor a pkgver that makes sense. Following are some examples showing the intended output:

Git

Using the tag of the last commit:

pkgver() {
  cd local_repo
  local ver="$(git describe --always)"
  printf "%s" "${ver//-/.}"
}
2.0.6.a17a017

If there are no annotated tags:

pkgver() {
  cd local_repo
  printf "%s.%s" "$(git rev-list --count HEAD)" "$(git rev-parse --short HEAD)"
}
1142.a17a017

Subversion

pkgver() {
  cd local_repo
  local ver="$(svnversion)"
  printf "%s" "${ver//[[:alpha:]]}"
}
8546

Mercurial

pkgver() {
  cd local_repo
  printf "%s.%s" "$(hg identify -n)" "$(hg identify -i)"
}
2813.75881cc5391e

Bazaar

pkgver() {
  cd local_repo
  bzr revno
}
830

Fallback

The current date can be used, in case no satisfactory pkgver can be extracted from the repo:

pkgver() {
  date +%Y%m%d
}
20130408

Tips

A sample Git PKGBUILD

# Maintainer: Dave Reisner <d@falconindy.com> 
# Contributor: William Giokas (KaiSforza) <1007380@gmail.com>

pkgname=expac-git
pkgver=0.0.0
pkgrel=1
pkgdesc="Pacman database extraction utility"
arch=('i686' 'x86_64')
url="https://github.com/falconindy/expac"
license=('MIT')
depends=('pacman')
makedepends=('git')
conflicts=('expac')
provides=('expac')
# The git repo is detected by the 'git:' or 'git+' beginning. The branch
# 'pacman41' is then checked out upon cloning, expediating versioning:
#source=('git+https://github.com/falconindy/expac.git'
source=("$pkgname"::'git://github.com/falconindy/expac.git'
        'expac_icon.png')
# Because the sources are not static, skip Git checksum:
md5sums=('SKIP'
         '020c36e38466b68cbc7b3f93e2044b49')

pkgver() {
  cd "$pkgname"
  # Use the tag of the last commit
  local ver="$(git describe --always)"
  printf "%s" "${ver//-/.}"
}

build() {
  cd "$pkgname"
  make
}

package() {
  cd "$pkgname"
  make PREFIX=/usr DESTDIR="$pkgdir" install
  install -Dm644 "${srcdir}/expac_icon.png" "${pkgdir}/usr/share/pixmaps/expac.png"
}