Руководство PKGBUILD VCS

Version control systems может использоваться для поиска исходного кода как обычных статически версионированных пакетов, так и последней (trunk) версии ветки разработки. В этой статье рассматриваются оба случая.

Руководство

• Суффиксы pkgname with -cvs, -svn, -hg, -darcs, -bzr, -git и тд, если только пакет не относится к определенному выпуску.

• Если результирующий пакет отличается после изменения зависимостей, URL, источников и т.д., увеличение pkgrel является обязательным. Менять pkgver необязательно.

• --holdver можно использовать для предотвращения обновления makepkg в pkgver. (см.: makepkg(8))

• Укажите, с чем пакет конфликтует и что предоставляет (например, для fluxbox-git: conflicts=('fluxbox') и provides=('fluxbox')).

• replaces=() обычно вызывает ненужные проблемы и его следует избегать.

• При использовании cvsroot используйте anonymous:@, а не anonymous@, чтобы избежать необходимости вводить пустой пароль или anonymous:password@, если он требуется.

• Включите соответствующий инструмент VCS в makedepends=() (cvs, subversion, git, ...).

Источники VCS

Примечание

---

Pacman 4.1 поддерживает следующие источники VCS: bzr, git, hg и svn. Список поддерживаемых VCS см. в разделе fragment в man PKGBUILD или PKGBUILD(5).

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. See man PKGBUILD for more information on the fragments available for each VCS.

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.

It is recommended to have following version format: RELEASE.rREVISION where REVISION is a monotonically increasing number that uniquely identifies the source tree (VCS revisions do this). The last VCS tag can be used for RELEASE. If there are no public releases and no repository tags then zero could be used as a release number or you can drop RELEASE completely and use version number that looks like rREVISION. If there are public releases but repo has no tags then developer should get the release version somehow e.g. by parsing the project files.

Following are some examples showing the intended output:

Git

Using the annotated tag of the last commit:

pkgver() {
  cd "$srcdir/repo"
  git describe --long | sed -E 's/([^-]*-g)/r\1/;s/-/./g'
}

2.0.r6.ga17a017

Using the unannotated tag of the last commit:

pkgver() {
  cd "$srcdir/repo"
  git describe --long --tags | sed -E 's/([^-]*-g)/r\1/;s/-/./g'
}

0.71.r115.gd95ee07

If there are no tags then use number of revisions since beginning of the history:

pkgver() {
  cd "$srcdir/repo"
  printf "r%s.%s" "$(git rev-list --count HEAD)" "$(git rev-parse --short HEAD)"
}

r1142.a17a017

Note

---

SHA1 (in this case a17a017) is not used in the version comparison and can be omitted, although it allows quick identification of the exact revision used and might be useful during debugging.

Subversion

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

r8546

Note

---

If the project has releases you should use them instead of the 0..

Mercurial

pkgver() {
  cd "$srcdir/repo"
  printf "r%s.%s" "$(hg identify -n)" "$(hg identify -i)"
}

r2813.75881cc5391e

Bazaar

pkgver() {
  cd "$srcdir/repo"
  printf "r%s" "$(bzr revno)"
}

r830

Fallback

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

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

20130408

Although it does not identify source tree state uniquely, so avoid it if possible.

Советы

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
# '$pkgname' is then checked out upon cloning, expediating versioning:
#source=('git+https://github.com/falconindy/expac.git'
source=("$pkgname"::'git://github.com/falconindy/expac.git'
        'expac_icon.png')
# Because the sources are not static, skip Git checksum:
md5sums=('SKIP'
         '020c36e38466b68cbc7b3f93e2044b49')

pkgver() {
  cd "$srcdir/$pkgname"
  # Use the tag of the last commit
  git describe --long | sed -E 's/([^-]*-g)/r\1/;s/-/./g'
}

build() {
  cd "$srcdir/$pkgname"
  make
}

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

Git Submodules

Git submodules are a little tricky to do. The idea is to add the URLs of the submodules themselves directly to the sources array and then reference them during prepare(). This could look like this:

source=("git://somewhere.org/something/something.git"
        "git://somewhere.org/mysubmodule/mysubmodule.git")

prepare() {
    cd something
    git submodule init
    git config submodule.mysubmodule.url $srcdir/mysubmodule
    git submodule update
}