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From: "Aaron Swenson" <titanofold@gentoo.org>
To: gentoo-commits@lists.gentoo.org
Subject: [gentoo-commits] proj/postgresql/eselect:master commit in: /
Date: Fri, 21 Jul 2017 18:36:18 +0000 (UTC)	[thread overview]
Message-ID: <1500661889.1ce72c8f890d9effe502d6d103bca10c6e4b56c4.titanofold@gentoo> (raw)

commit:     1ce72c8f890d9effe502d6d103bca10c6e4b56c4
Author:     Aaron W. Swenson <titanofold <AT> gentoo <DOT> org>
AuthorDate: Fri Jul 21 18:31:29 2017 +0000
Commit:     Aaron Swenson <titanofold <AT> gentoo <DOT> org>
CommitDate: Fri Jul 21 18:31:29 2017 +0000
URL:        https://gitweb.gentoo.org/proj/postgresql/eselect.git/commit/?id=1ce72c8f

Canonicalise even if nonexistent

canoncalise() returns the absolute path a symbolic link points to,
except when the path no longer exists. Adding the -m option – which is
the same for both realpath and readlink – makes it ignore nonexistent
portions of the path.

Bug: https://bugs.gentoo.org/625368

 postgresql.eselect | 25 ++++++++++++++++---------
 1 file changed, 16 insertions(+), 9 deletions(-)

diff --git a/postgresql.eselect b/postgresql.eselect
index 9203a97..84d08af 100644
--- a/postgresql.eselect
+++ b/postgresql.eselect
@@ -30,7 +30,7 @@ active_slot() {
     # ${USR_PATH}/share/postgresql is a symlink to the active
     # slot. See if it's there, then find out where it links to.
 	if [[ -h "${USR_PATH}/share/postgresql" ]] ; then
-		canonicalise "${USR_PATH}/share/postgresql" | \
+		canonicalise -m "${USR_PATH}/share/postgresql" | \
 			sed -re 's#.*([1-9][0-9.]+)$#\1#'
 	else
 		echo "(none)"
@@ -283,6 +283,17 @@ do_unset() {
 		return 0
 	fi
 
+	# Get the file path that the link is pointing to. If it has the string
+	# "postgresql-${slot}" somewhere in it, then it's a link that this module is
+	# handling.
+	is_slot_link() {
+		if [[ $(canonicalise -m "$1") == *postgresql-${slot}* ]] ; then
+			return 0 # yes
+		else
+			return 1 # no
+		fi
+    }
+
 	# Start with some known locations that are, or will contain, symlinks.
 	local paths=(
 		"${INCLUDE_TARGETS[@]}"
@@ -307,10 +318,9 @@ do_unset() {
 
 	local l path
 	for path in "${paths[@]}" ; do
-		# If path is a link that belongs to the slot in question, it can be
-		# removed without invoking find.
-		if [[ -h "${path}" && \
-					$(canonicalise "${path}") == *postgresql-${slot}* ]] ; then
+		# If $path is a link that belongs to the active slot, it can be removed
+		# without invoking find.
+		if [[ -h "${path}" ]] && is_slot_link "${path}" ; then
 			rm "${path}" || write_warning_msg "Couldn't remove: ${path}"
 			continue
 		fi
@@ -322,10 +332,7 @@ do_unset() {
 			[[ ${l} == ${USR_PATH}/bin/*${slot/.} ]] && continue
 			[[ ${l} == ${USR_PATH}/share/man/man?/*${slot/.}* ]] && continue
 
-			# Get the file path that the link is pointing to. If it has the
-			# string "postgresql-${slot}" somewhere in it, then it's a link that
-			# needs to be removed.
-			if [[ $(canonicalise "${l}") == *postgresql-${slot}* ]] ; then
+			if is_slot_link "${l}" ; then
 				rm "${l}" || write_warning_msg "Couldn't remove: ${l}"
 			fi
 		done


             reply	other threads:[~2017-07-21 18:36 UTC|newest]

Thread overview: 28+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-07-21 18:36 Aaron Swenson [this message]
  -- strict thread matches above, loose matches on Subject: below --
2018-10-21 11:00 [gentoo-commits] proj/postgresql/eselect:master commit in: / Aaron Swenson
2018-10-21 11:00 Aaron Swenson
2018-01-14 16:43 Aaron Swenson
2018-01-14 16:39 Aaron Swenson
2018-01-14 16:38 Aaron Swenson
2018-01-14 16:28 Aaron Swenson
2018-01-14 16:19 Aaron Swenson
2018-01-14 16:19 Aaron Swenson
2018-01-14 16:19 Aaron Swenson
2017-07-21 18:49 Aaron Swenson
2017-05-19 14:24 Aaron Swenson
2017-05-19 14:20 Aaron Swenson
2017-05-19 14:20 Aaron Swenson
2017-04-18 19:43 Aaron Swenson
2017-04-18 19:43 Aaron Swenson
2017-04-18 19:43 Aaron Swenson
2017-04-18 19:43 Aaron Swenson
2017-04-18 19:43 Aaron Swenson
2017-04-18 19:43 Aaron Swenson
2017-04-18 19:43 Aaron Swenson
2017-04-18 19:43 Aaron Swenson
2017-04-18 19:43 Aaron Swenson
2017-04-18 19:43 Aaron Swenson
2017-04-18 19:43 Aaron Swenson
2017-04-18 19:43 Aaron Swenson
2017-04-18 19:43 [gentoo-commits] proj/postgresql/eselect:stateless " Aaron Swenson
2017-04-18 19:43 ` [gentoo-commits] proj/postgresql/eselect:master " Aaron Swenson
2017-02-06 13:19 [gentoo-commits] proj/postgresql/eselect:stateless " Aaron Swenson
2017-04-18 19:43 ` [gentoo-commits] proj/postgresql/eselect:master " Aaron Swenson

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