From 9615d82343148301884bfc79d87e2f408aad64bd Mon Sep 17 00:00:00 2001
From: Allan McRae <mcrae_allan@hotmail.com>
Date: Wed, 5 Dec 2007 09:50:29 +1000
Subject: Compress hard linked man pages

This fixes FS#5392.  If hard links are present for a man page, all
other hard linked files are removed, the man page is zipped and the
hard links are updated to the newly compress man page.

Signed-off-by: Allan McRae <mcrae_allan@hotmail.com>
[Dan: use find -samefile option, don't fail if one of mandirs is
nonexistent]
Signed-off-by: Dan McGee <dan@archlinux.org>
---
 scripts/makepkg.sh.in | 40 ++++++++++++++++++++++++++++------------
 1 file changed, 28 insertions(+), 12 deletions(-)

diff --git a/scripts/makepkg.sh.in b/scripts/makepkg.sh.in
index 953bda2a..0ef0e521 100644
--- a/scripts/makepkg.sh.in
+++ b/scripts/makepkg.sh.in
@@ -722,18 +722,34 @@ tidy_install() {
 
 
 	msg2 "$(gettext "Compressing man pages...")"
-	local manpage ext file link
-	find {usr{,/local},opt/*}/man -type f 2>/dev/null | while read manpage ; do
-		ext="${manpage##*.}"
-		file="${manpage##*/}"
-		if [ "$ext" != "gz" -a "$ext" != "bz2" ]; then
-			# update symlinks to this manpage
-			find {usr{,/local},opt/*}/man -lname "$file" 2>/dev/null | while read link ; do
-				rm -f "$link"
-				ln -sf "${file}.gz" "${link}.gz"
-			done
-			# compress the original
-			gzip -9 "$manpage"
+	local manpage mandirs ext file link hardlinks hl
+	mandirs="usr/man usr/local/man usr/share/man opt/*/man"
+	find ${mandirs} -type f 2>/dev/null | while read manpage ; do
+		# check file still exists (potentially compressed with hard link)
+		if [ -f ${manpage} ]; then
+			ext="${manpage##*.}"
+			file="${manpage##*/}"
+			if [ "$ext" != "gz" -a "$ext" != "bz2" ]; then
+				# update symlinks to this manpage
+				find ${mandirs} -lname "$file" 2>/dev/null | while read link ; do
+					rm -f "$link"
+					ln -sf "${file}.gz" "${link}.gz"
+				done
+				# find hard links and remove them
+				#   the '|| true' part keeps the script from bailing if find returned an
+				#   error, such as when one of the man directories doesn't exist
+				hardlinks="$(find ${mandirs} \! -name "$file" -samefile "$manpage" 2>/dev/null)" || true
+				for hl in ${hardlinks}; do
+					rm -f "${hl}";
+				done
+				# compress the original
+				gzip -9 "$manpage"
+				# recreate hard links removed earlier
+				for hl in ${hardlinks}; do
+					ln "${manpage}.gz" "${hl}.gz"
+					chmod 644 ${hl}.gz
+				done
+			fi
 		fi
 	done
 
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