grep'ing out blank lines and sorting output thoroughly breaks any file
lists with %BACKUP% entries which must be separated from the file list
by a blank line.

Signed-off-by: Andrew Gregory <[email protected]>
---

Anybody who has replaced an owned directory with a symlink and run
pacman-db-upgrade has mangled the file list for all packages with backup files.
To check for broken file lists run:
`grep -xA1 %BACKUP% /var/lib/pacman/local/*/files | grep -B1 %FILES%`
Any file lists with output are broken.  Broken file lists can be repaired by
reinstalling the affected packages with --dbonly.  After repairing, users
should remove /var/lib/pacman/local/ALPM_DB_VERSION and run the fixed version
of pacman-db-upgrade.

 scripts/pacman-db-upgrade.sh.in | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/scripts/pacman-db-upgrade.sh.in b/scripts/pacman-db-upgrade.sh.in
index d2d317b..d7e34bd 100644
--- a/scripts/pacman-db-upgrade.sh.in
+++ b/scripts/pacman-db-upgrade.sh.in
@@ -211,9 +211,9 @@ if [[ -z "$db_version" ]]; then
                                        {
                                                if ($0 == olddir) {
                                                        # replace symlink with 
its target, including parents
-                                                       printf("%s", parents)
-                                                       printf("%s\n", newdir)
-                                               } else if ($0 == file) {
+                                                       if (parents) 
printf("%s", parents)
+                                                       if (newdir) 
printf("%s\n", newdir)
+                                               } else if (file && $0 == file) {
                                                        # newdir already 
existed as a file, skip it
                                                } else if (index($0, olddir) == 
1) {
                                                        # update paths that 
were under olddir
@@ -222,7 +222,7 @@ if [[ -z "$db_version" ]]; then
                                                        # print everything else 
as-is
                                                        print
                                                }
-                                       }' "$f" | grep . | LC_ALL=C sort -u > 
"$f.tmp"
+                                       }' "$f" > "$f.tmp"
                                mv "$f.tmp" "$f"
                        done
                done
-- 
2.1.1

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