examples/sync-devel

   1 #!/bin/bash
   2 set -e
   3 argv0=sync-devel
   4 XDG_CACHE_HOME=${XDG_CACHE_HOME:-$HOME/.cache}
   5
   6 # For the purposes of this example, we assume AURDEST contains both AUR and
   7 # non-AUR git repositories (e.g. from github or archweb), with corresponding
   8 # packages in the local repository.
   9 AURDEST=${AURDEST:-$XDG_CACHE_HOME/aurutils/sync}
  10 AURVCS=".*-(cvs|svn|git|hg|bzr|darcs)$"
  11
  12 # Pattern the defines VCS packages. The AUR has no formal definition of a VCS
  13 # package - here we include the most common version control systems.
  14 filter_vcs() {
  15     awk -v "mask=$AURVCS" '$1 ~ mask {print $1}' "$@"
  16 }
  17
  18 # Scratch space for intermediary results.
  19 mkdir -pm 0700 "${TMPDIR:-/tmp}/aurutils-$UID"
  20 tmp=$(mktemp -d --tmpdir "aurutils-$UID/$argv0.XXXXXXXX")
  21 trap 'rm -rf "$tmp"' EXIT
  22
  23 # Retrieve a list of the local repository contents. The repository
  24 # can be specified with the usual aur-repo arguments.
  25 aur repo --list "$@" | tee "$tmp"/db | filter_vcs - >"$tmp"/vcs
  26
  27 # Only AUR repositories can be cloned anew, as the source of non-AUR packages
  28 # is unknown beforehand. Their existence is checked with `git-ls-remote` (`-e`)
  29 # Running makepkg locally on a PKGBUILD with pkgver() results in local changes,
  30 # so these are removed with `--discard`. New upstream commits are then merged
  31 # with `git-merge` or `git-rebase` (`--sync=auto`). The final PKGBUILD is shown
  32 # in `aur-view` later on.
  33 cd "$AURDEST"
  34 aur fetch -e --discard --sync=auto --results="$tmp"/fetch_results - <"$tmp"/vcs
  35
  36 # Make sure empty repositories are not considered for inspection.
  37 targets=()
  38 while IFS=: read -r mode rev_old rev path; do
  39     path=${path#file://} name=${path##*/}
  40
  41     case $mode in
  42         clone|merge|fetch|rebase|reset)
  43             [[ $rev != "0" ]] && targets+=("$name") ;;
  44     esac
  45 done <"$tmp"/fetch_results
  46
  47 # Inspect new AUR (downstream) commits with aur-view(1). This is done
  48 # before running aur-srcver, which runs makepkg and sources the
  49 # PKGBUILD.
  50 aur view "${targets[@]}"
  51
  52 # Update `epoch:pkgver-pkgrel` for each target with `aur-srcver`.
  53 # This runs `makepkg`, cloning upstream to the latest revision. The
  54 # output is then compared with the contents of the local repository.
  55 cat "$tmp"/db | aur vercmp -p <(aur srcver "${targets[@]}") | \
  56     awk '{print $1}' >"$tmp"/ood
  57
  58 # Build the packages. Arguments are shared between aur-repo and
  59 # aur-build to specify the local repository.
  60 if [[ -s $tmp/ood ]]; then
  61     aur build "$@" -a "$tmp"/ood --syncdeps --rmdeps --noconfirm
  62 else
  63     printf >&2 '%s: all packages up-to-date\n' "$argv0"
  64 fi