[arch-projects] [devtools] [PATCH 2/2] makechrootpkg: Allow setting pacman cache for arch-nspawn.

[Maarten de Vries via arch-projects]

Signed-off-by: Maarten de Vries <maar...@de-vri.es>
---
 makechrootpkg.in | 29 +++++++++++++++++++++++------
 1 file changed, 23 insertions(+), 6 deletions(-)

diff --git a/makechrootpkg.in b/makechrootpkg.in
index d81be84..ad65de4 100644
--- a/makechrootpkg.in
+++ b/makechrootpkg.in
@@ -38,6 +38,7 @@ usage() {
        echo 'Flags:'
        echo '-h         This help'
        echo '-c         Clean the chroot before building'
+       echo '-C <dir>   Use a folder on the host as pacman cache'
        echo '-d <dir>   Bind directory into build chroot as read-write'
        echo '-D <dir>   Bind directory into build chroot as read-only'
        echo '-u         Update the working copy of the chroot before building'
@@ -147,7 +148,7 @@ install_packages() {
        pkgnames=("${install_pkgs[@]##*/}")
 
        cp -- "${install_pkgs[@]}" "$copydir/root/"
-       arch-nspawn "$copydir" "${bindmounts_ro[@]}" "${bindmounts_rw[@]}" \
+       nspawn "$copydir" \
                pacman -U --noconfirm -- "${pkgnames[@]/#//root/}"
        ret=$?
        rm -- "${pkgnames[@]/#/$copydir/root/}"
@@ -301,6 +302,22 @@ move_products() {
                fi
        done
 }
+
+# Usage: nspawn $copydir $nspawn-args ...
+# Globals:
+#  - pacman_cache
+#  - bindmounts_ro
+#  - bindmounts_rw
+nspawn() {
+       local copydir=$1
+       shift
+
+       if [[ -n $pacman_cache ]]; then
+               arch-nspawn -c "$pacman_cache" "$copydir" "${bindmounts_ro[@]}" 
"${bindmounts_rw[@]}" "$@"
+       else
+               arch-nspawn "$copydir" "${bindmounts_ro[@]}" 
"${bindmounts_rw[@]}" "$@"
+       fi
+}
 # }}}
 
 main() {
@@ -317,6 +334,7 @@ main() {
        declare -a install_pkgs
        declare -i ret=0
 
+       pacman_cache=
        bindmounts_ro=()
        bindmounts_rw=()
 
@@ -325,9 +343,10 @@ main() {
        [[ -z "$copy" || $copy = root ]] && copy=copy
        src_owner=${SUDO_USER:-$USER}
 
-       while getopts 'hcur:I:l:nTD:d:U:' arg; do
+       while getopts 'hcur:I:l:nTC:D:d:U:' arg; do
                case "$arg" in
                        c) clean_first=true ;;
+                       C) pacman_cache="$OPTARG" ;;
                        D) bindmounts_ro+=("--bind-ro=$OPTARG") ;;
                        d) bindmounts_rw+=("--bind=$OPTARG") ;;
                        u) update_first=true ;;
@@ -395,8 +414,7 @@ main() {
                sync_chroot "$chrootdir/root" "$copydir" "$copy"
        fi
 
-       $update_first && arch-nspawn "$copydir" \
-                       "${bindmounts_ro[@]}" "${bindmounts_rw[@]}" \
+       $update_first && nspawn "$copydir" \
                        pacman -Syu --noconfirm
 
        if [[ -n ${install_pkgs[*]:-} ]]; then
@@ -415,10 +433,9 @@ main() {
 
        prepare_chroot "$copydir" "$USER_HOME" "$keepbuilddir" "$run_namcap"
 
-       if arch-nspawn "$copydir" \
+       if nspawn "$copydir" \
                --bind="$PWD:/startdir" \
                --bind="$SRCDEST:/srcdest" \
-               "${bindmounts_ro[@]}" "${bindmounts_rw[@]}" \
                /chrootbuild "${makepkg_args[@]}"
        then
                move_products "$copydir" "$src_owner"
-- 
2.20.1