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repo-remove: create empty DB when all packages are removed

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Rather than creating no database at all, create an empty zipped tar archive
in its place. This keeps the download side of repositories a bit more sane
as a DB will always exist, and pacman handles this empty case just fine.

For this to be fully transparent, we also need to make sure repo-add and
repo-remove accept an empty "DB" as an argument, which in reality is a
completely void of files .tar.{gz,bz2,xz} archive.

Signed-off-by: Dan McGee <dan@archlinux.org>
This commit is contained in:
Dan McGee 2009-09-23 21:15:53 -05:00
parent 20aa17c276
commit 7f14f185a2
1 changed files with 11 additions and 5 deletions
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16
scripts/repo-add.sh.in
View file

@ -306,9 +306,14 @@ check_repo_db()
fi fi
if [ -f "$REPO_DB_FILE" ]; then if [ -f "$REPO_DB_FILE" ]; then
if ! bsdtar -tqf "$REPO_DB_FILE" '*/desc' 2>&1 >/dev/null; then # there are two situations we can have here- a DB with some entries,
error "$(gettext "Repository file '%s' is not a proper pacman database.")" "$REPO_DB_FILE" # or a DB with no contents at all.
exit 1 if ! bsdtar -tqf "$REPO_DB_FILE" '*/desc' >/dev/null 2>&1; then
# check empty case
if [ -n "$(bsdtar -tqf "$REPO_DB_FILE" '*' 2>/dev/null)" ]; then
error "$(gettext "Repository file '%s' is not a proper pacman database.")" "$REPO_DB_FILE"
exit 1
fi
fi fi
msg "$(gettext "Extracting database to a temporary location...")" msg "$(gettext "Extracting database to a temporary location...")"
bsdtar -xf "$REPO_DB_FILE" -C "$tmpdir" bsdtar -xf "$REPO_DB_FILE" -C "$tmpdir"
@ -484,8 +489,9 @@ if [ $success -eq 1 ]; then
if [ -n "$(ls)" ]; then if [ -n "$(ls)" ]; then
bsdtar -c${TAR_OPT}f "$filename" * bsdtar -c${TAR_OPT}f "$filename" *
else else
# the database will be moved to .old below, and there will be no new one to replace it # we have no packages remaining? zip up some emptyness
error "$(gettext "All packages have been removed from the database. Deleting '%s'.")" "$REPO_DB_FILE" warning "$(gettext "No packages remain, creating empty database.")"
bsdtar -c${TAR_OPT}f "$filename" -T /dev/null
fi fi
cd "$startdir" cd "$startdir"