23 Mar 2014

Tags: archlinux,configuration,linux

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Creating own repository

It is a short paper devoted to creation own ArchLinux repository.

Prepare

First find a server and desire to have sex with it. It is recommended to use Archlinux on it, but it is not necessarily - because you may create special root for Archlinux. Also you need two packages, devtools and pacman:

pacman -Sy devtools

devtools is script set for building automation in the clean chroot. I think most of Arch maintainers use it.

Let's create working directories and set colors:

# colors
if [ ${USECOLOR} == "yes" ]; then
  bblue='\e[1;34m'
  bwhite='\e[1;37m'
  cclose='\e[0m'
fi
export USECOLOR
# directories
if [ ! -d "${PREPAREDIR}" ]; then
  [ -e "${PREPAREDIR}" ] && error_mes "file" "${PREPAREDIR}"
  echo -e "${bwhite}[II] ${bblue}Creating directory ${bwhite}'${PREPAREDIR}'${cclose}"
  mkdir -p "${PREPAREDIR}" || error_mes "unknown"
fi
if [ ! -d "${REPODIR}" ]; then
  [ -e "${REPODIR}" ] && error_mes "file" "${REPODIR}"
  echo -e "${bwhite}[II] ${bblue}Creating directory ${bwhite}'${REPODIR}'${cclose}"
  mkdir -p "${REPODIR}/"{i686,x86_64} || error_mes "unknown"
fi
if [ ! -d "${REPODIR}/i686" ]; then
  [ -e "${REPODIR}/i686" ] && error_mes "file" "${REPODIR}/i686"
  echo -e "${bwhite}[II] ${bblue}Creating directory ${bwhite}'${REPODIR}/i686'${cclose}"
  mkdir -p "${REPODIR}/i686" || error_mes "unknown"
fi
if [ ! -d "${REPODIR}/x86_64" ]; then
  [ -e "${REPODIR}/x86_64" ] && error_mes "file" "${REPODIR}/x86_64"
  echo -e "${bwhite}[II] ${bblue}Creating directory ${bwhite}'${REPODIR}/x86_64'${cclose}"
  mkdir -p "${REPODIR}/x86_64" || error_mes "unknown"
fi
if [ ! -d "${STAGINGDIR}" ]; then
  [ -e "${STAGINGDIR}" ] && error_mes "file" "${STAGINGDIR}"
  echo -e "${bwhite}[II] ${bblue}Creating directory ${bwhite}'${STAGINGDIR}'${cclose}"
  mkdir -p "${STAGINGDIR}" || error_mes "unknown"
fi

${REPODIR}/{i686,x86_64} are directories for repository, ${PREPAREDIR} is directory where compiled packages will be stored, ${STAGINGDIR} is one where packages will be built.

A bit of theory

Create directory, share it (using ftp, for example). It has two subdirectories - i686 and x86_64 - for each architecture respectively. And fill them with a set of packages.

Updating repository may be split into the following steps:

  1. Creating PKGBUILDs (or updating them from AUR).
  2. Packages building for each architecture in clean chroot.
  3. Packages signing.
  4. Creating the list of packages.
  5. Repository update:
    1. Removal old packages from repository.
    2. Copying new packages
    3. Repository update.
  6. Cleaning.

Creating PKGBUILDs

Download source tarballs from AUR:

cd "${STAGINGDIR}"
yaourt -G package-name

Packages building

Build each package automatically:

func_build() {
  if [ ${USECOLOR} == "yes" ]; then
    _bblue='\e[1;34m'
    _bwhite='\e[1;37m'
    _cclose='\e[0m'
  fi
  _PREPAREDIR="$1"
  _ROOTDIR="$2"
  eval $(/usr/bin/grep 'arch=' PKGBUILD)
  eval $(/usr/bin/grep 'pkgname=' PKGBUILD)
  echo -e "${_bwhite}[II] ${_bblue}=>${_cclose} Building ${_bwhite}${pkgname}${_cclose}"
  if echo ${arch} | /usr/bin/grep 'any' -q; then
    LC_MESSAGES=C /usr/bin/sudo /usr/bin/staging-i686-build -r "${_ROOTDIR}" -c
  else
    eval $(/usr/bin/grep 'pkgname=' PKGBUILD)
    if echo ${pkgname} | /usr/bin/grep lib32 -q; then
      LC_MESSAGES=C /usr/bin/sudo /usr/bin/multilib-staging-build -r "${_ROOTDIR}" -c
    else
      if /usr/bin/grep 'lib32' PKGBUILD -q; then
        LC_MESSAGES=C /usr/bin/sudo /usr/bin/staging-i686-build -r "${_ROOTDIR}" -c
        LC_MESSAGES=C /usr/bin/sudo /usr/bin/multilib-staging-build -r "${_ROOTDIR}" -c
      else
        LC_MESSAGES=C /usr/bin/sudo /usr/bin/staging-i686-build -r "${_ROOTDIR}" -c
        LC_MESSAGES=C /usr/bin/sudo /usr/bin/staging-x86_64-build -r "${_ROOTDIR}" -c
      fi
    fi
  fi
  /usr/bin/cp *.pkg.tar.xz "${_PREPAREDIR}"
}
export -f func_build

# building
echo -e "${bwhite}[II]${cclose} Building packages"
cd "${STAGINGDIR}"
/usr/bin/find -name 'PKGBUILD' -type f -execdir /usr/bin/bash -c "func_build "${PREPAREDIR}" "${ROOTDIR}"" \;

It is recommended to add the following lines to /etc/sudoers:

username ALL=NOPASSWD: /usr/bin/staging-i686-build
username ALL=NOPASSWD: /usr/bin/staging-x86_64-build
username ALL=NOPASSWD: /usr/bin/multilib-staging-build

Packages signing

# signing
if [ ${USEGPG} == "yes" ]; then
  echo -e "${bwhite}[II]${cclose} Signing"
  cd "${PREPAREDIR}"
  for PACKAGE in $(/usr/bin/find . -name '*.pkg.tar.xz'); do
    /usr/bin/gpg -b ${PACKAGE}
  done
fi

It is recommended to configure gpg-agent.

Creating the list of packages

# creating packages list
cd "${PREPAREDIR}"
i686_PACKAGES=$(/usr/bin/find * -name '*-i686.pkg.tar.xz' -o -name
'*-any.pkg.tar.xz')
x86_64_PACKAGES=$(/usr/bin/find * -name '*-x86_64.pkg.tar.xz' -o -name
'*-any.pkg.tar.xz')
echo -e "${bwhite}[II] ${bblue}=>${cclose} i686 packages:
\n${bwhite}${i686_PACKAGES}${cclose}"
echo -e "${bwhite}[II] ${bblue}=>${cclose} x86_64 packages:
\n${bwhite}${x86_64_PACKAGES}${cclose}"

Repository update

Here is a function for removal packages from database and repository:

func_remove() {
  _PACKAGE="$1"
  /usr/bin/rm -f "${_PACKAGE}"{,.sig}
}

i686 repository update:

# updating i686 repo
echo -e "${bwhite}[II]${cclose} Updating ${bwhite}i686${cclose} repo"
cd "${REPODIR}/i686"
for PACKAGE in ${i686_PACKAGES}; do
  PKGNAME=$(/usr/bin/package-query -p -f %n "${PREPAREDIR}/${PACKAGE}")
  for PKG in $(/usr/bin/find "${REPODIR}/i686" -name "${PKGNAME}"'*.pkg.tar.xz'); do
    _PKGNAME=$(/usr/bin/package-query -p -f %n "${PKG}")
    [ "${PKGNAME}" == "${_PKGNAME}" ] && func_remove "${PKG}"
  done
  /usr/bin/cp "${PREPAREDIR}/${PACKAGE}" .
  [ ${USEGPG} == "yes" ] && /usr/bin/cp "${PREPAREDIR}/${PACKAGE}.sig" .
  /usr/bin/repo-add ${DBNAME}.db.tar.gz "${PACKAGE}"
  /usr/bin/repo-add --files ${DBNAME}.files.tar.gz "${PACKAGE}"
done

x86_64 repository update:

# updating x86_64 repo
echo -e "${bwhite}[II]${cclose} Updating ${bwhite}x86_64${cclose} repo"
cd "${REPODIR}/x86_64"
for PACKAGE in ${x86_64_PACKAGES}; do
  PKGNAME=$(/usr/bin/package-query -p -f %n "${PREPAREDIR}/${PACKAGE}")
  for PKG in $(/usr/bin/find "${REPODIR}/x86_64" -name "${PKGNAME}"'*.pkg.tar.xz'); do
    _PKGNAME=$(/usr/bin/package-query -p -f %n "${PKG}")
    [ "${PKGNAME}" == "${_PKGNAME}" ] && func_remove "${PKG}"
  done
  /usr/bin/cp "${PREPAREDIR}/${PACKAGE}" .
  [ ${USEGPG} == "yes" ] && /usr/bin/cp "${PREPAREDIR}/${PACKAGE}.sig" .
  /usr/bin/repo-add ${DBNAME}.db.tar.gz "${PACKAGE}"
  /usr/bin/repo-add --files ${DBNAME}.files.tar.gz "${PACKAGE}"
done

Cleaning

# clear
cd "${PREPAREDIR}"
/usr/bin/rm -rf *
cd "${STAGINGDIR}"
/usr/bin/rm -rf *

Creating symlinks

You may want to create a directory, which will contain symlinks on actual packages with names, which does not contain version:

# creating symlinks
if [ ${SYMLINK} == "yes" ]; then
  echo -e "${bwhite}[II]${cclose} Creating symlinks"
  if [ ! -d "${REPODIR}/non-versioned" ]; then
    [ -e "${REPODIR}/non-versioned" ] && error_mes "file" "${REPODIR}/non-versioned"
    echo -e "${bwhite}[II] ${bblue}Creating directory ${bwhite}'${REPODIR}/non-versioned'${cclose}"
    mkdir -p "${REPODIR}/non-versioned" || error_mes "unknown"
  fi
  cd "${REPODIR}/non-versioned"
  for PACKAGE in ${i686_PACKAGES}; do
    PKGNAME=$(/usr/bin/package-query -p -f %n "${REPODIR}/i686/${PACKAGE}")
    /usr/bin/ln -sf "../i686/${PACKAGE}" "${PKGNAME}-i686.pkg.tar.xz"
  done
  for PACKAGE in ${x86_64_PACKAGES}; do
    PKGNAME=$(/usr/bin/package-query -p -f %n "${REPODIR}/x86_64/${PACKAGE}")
    /usr/bin/ln -sf "../x86_64/${PACKAGE}" "${PKGNAME}-x86_64.pkg.tar.xz"
  done
fi

File

Here is the scripts. Download source tarballs and run script (editing variables if it is necessary).

Repository usage

Just add following lines to /etc/pacman.conf:

[$REPONAME]
Server = ftp://$REPOADDRESS/repo/$arch