bin: ocp aur-sync-devel to bin

diff --git a/bin/aur-sync-devel b/bin/aur-sync-devel
new file mode 100755 (executable)
index 0000000..f699fed
--- /dev/null
+++ b/bin/aur-sync-devel
@@ -0,0 +1,66 @@
+#!/bin/bash
+# Example taken from /usr/share/doc/aurutils/examples/sync-devel
+
+set -e
+argv0=sync-devel
+XDG_CACHE_HOME=${XDG_CACHE_HOME:-$HOME/.cache}
+
+# For the purposes of this example, we assume AURDEST contains both AUR and
+# non-AUR git repositories (e.g. from github or archweb), with corresponding
+# packages in the local repository.
+AURDEST=${AURDEST:-$XDG_CACHE_HOME/aurutils/sync}
+AURVCS=".*-(cvs|svn|git|hg|bzr|darcs)$"
+
+# Pattern the defines VCS packages. The AUR has no formal definition of a VCS
+# package - here we include the most common version control systems.
+filter_vcs() {
+    awk -v "mask=$AURVCS" '$1 ~ mask {print $1}' "$@"
+}
+
+# Scratch space for intermediary results.
+mkdir -pm 0700 "${TMPDIR:-/tmp}/aurutils-$UID"
+tmp=$(mktemp -d --tmpdir "aurutils-$UID/$argv0.XXXXXXXX")
+trap 'rm -rf "$tmp"' EXIT
+
+# Retrieve a list of the local repository contents. The repository
+# can be specified with the usual aur-repo arguments.
+aur repo --list "$@" | tee "$tmp"/db | filter_vcs - >"$tmp"/vcs
+
+# Only AUR repositories can be cloned anew, as the source of non-AUR packages
+# is unknown beforehand. Their existence is checked with `git-ls-remote` (`-e`)
+# Running makepkg locally on a PKGBUILD with pkgver() results in local changes,
+# so these are removed with `--discard`. New upstream commits are then merged
+# with `git-merge` or `git-rebase` (`--sync=auto`). The final PKGBUILD is shown
+# in `aur-view` later on.
+cd "$AURDEST"
+aur fetch -e --discard --sync=auto --results="$tmp"/fetch_results - <"$tmp"/vcs
+
+# Make sure empty repositories are not considered for inspection.
+targets=()
+while IFS=: read -r mode rev_old rev path; do
+    path=${path#file://} name=${path##*/}
+
+    case $mode in
+       clone|merge|fetch|rebase|reset)
+           [[ $rev != "0" ]] && targets+=("$name") ;;
+    esac
+done <"$tmp"/fetch_results
+
+# Inspect new AUR (downstream) commits with aur-view(1). This is done
+# before running aur-srcver, which runs makepkg and sources the
+# PKGBUILD.
+aur view "${targets[@]}"
+
+# Update `epoch:pkgver-pkgrel` for each target with `aur-srcver`.
+# This runs `makepkg`, cloning upstream to the latest revision. The
+# output is then compared with the contents of the local repository.
+cat "$tmp"/db | aur vercmp -p <(aur srcver "${targets[@]}") | \
+    awk '{print $1}' >"$tmp"/ood
+
+# Build the packages. Arguments are shared between aur-repo and
+# aur-build to specify the local repository.
+if [[ -s $tmp/ood ]]; then
+    aur build "$@" -a "$tmp"/ood --syncdeps --rmdeps --noconfirm
+else
+    printf >&2 '%s: all packages up-to-date\n' "$argv0"
+fi