ALT Linux Team development discussions
 help / color / mirror / Atom feed
* [devel] %post-script prerequisites
@ 2008-09-24 12:37 Alexey M. Tourbin
  2008-09-24 13:16 ` Dmitry V. Levin
  0 siblings, 1 reply; 8+ messages in thread
From: Alexey M. Tourbin @ 2008-09-24 12:37 UTC (permalink / raw)
  To: devel

Когда в %post-скрипте пакета запускается программа, запакованная
в сам этот пакет, тогда некоторые зависимости Requires пакета нужно
продублировать в Requires(post).  Например, если в пакете libgtk+2
запускается программа gkt-update-icon-cache, то должна появиться
зависимость на новый пакет glib2 вида
Requires(post): libglib-2.0.so.0(GLIB_2.18).

Update of /people/at/packages/rpm.git

Changes statistics since `4.0.4-alt95.M41.4-7-g3de7779' follows:
 scripts/find-scriptlet-requires.in |   27 +++++++++++++++++++++++++++
 1 files changed, 27 insertions(+), 0 deletions(-)

Changelog since `4.0.4-alt95.M41.4-7-g3de7779' follows:
commit 555b366b2df864b37878a989ce337078555316a4
Author: Alexey Tourbin <at@altlinux>
Date:   Wed Sep 24 12:17:39 2008 +0000

    find-scriptlet-requires: describe Requires(post) problem in %post-scripts

Full diff since `4.0.4-alt95.M41.4-7-g3de7779' follows:
diff --git a/scripts/find-scriptlet-requires.in b/scripts/find-scriptlet-requires.in
index 85d432e..6d37605 100755
--- a/scripts/find-scriptlet-requires.in
+++ b/scripts/find-scriptlet-requires.in
@@ -77,4 +77,31 @@ RunMethods req "$methods" RunMethod
 PrintDeps >"$workdir"/deps0
 if [ -s "$workdir"/deps0 ]; then
 	cat "$workdir"/deps0
+else
+	exit
 fi
+
+# Consider a program which is packaged into a package, and which gets
+# called in %post or %preun scriptlet of the package (e.g. in libgtk+2,
+# gtk-update-icon-cache might be called in %post-script).  Packaged
+# programs have "Requires" dependencies, and, for %post and %preun scripts,
+# the dependencies on packaged programs are optimized out (as well as other
+# dependencies provided by the package).  This is a problem: when executing
+# %post-script, its prerequisites might not be installed yet (e.g.
+# gtk-update-icon-cache requires recent glib2 version installed/upgraded
+# before libgtk+2).
+
+# The solution is: 1) to detect all packaged programs (and files), recursively,
+# which are used in %post-script; and 2) to find prerequisites for such files
+# and programs (which are not provided by the package itself), and add them to
+# Requires(post) dependencies.  Also, we want to ensure that 3) the list of
+# Requires(post) additional dependencies is only a subset of original Requires.
+
+# The above applies only to %post and %preun scriptlets.
+case "${script##*/}" in
+	.post:* | .preun:* ) ;;
+	*) exit ;;
+esac
+
+# The above applies only if packaged programs can be used in scripts.
+[ -s "$RPM_BUILD_ROOT/.files:${RPM_SUBPACKAGE_NAME:?}" ] || exit 0


^ permalink raw reply	[flat|nested] 8+ messages in thread
end of thread, other threads:[~2008-10-05 20:18 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2008-09-24 12:37 [devel] %post-script prerequisites Alexey M. Tourbin
2008-09-24 13:16 ` Dmitry V. Levin
2008-09-24 15:43   ` Alexey Tourbin
2008-09-24 19:28     ` Dmitry V. Levin
2008-09-25  6:19       ` Alexey Tourbin
2008-10-05 15:20         ` Alexey Tourbin
2008-10-05 20:18           ` Alexey Tourbin
2008-09-27 16:51       ` Alexey Tourbin

ALT Linux Team development discussions

This inbox may be cloned and mirrored by anyone:

	git clone --mirror http://lore.altlinux.org/devel/0 devel/git/0.git

	# If you have public-inbox 1.1+ installed, you may
	# initialize and index your mirror using the following commands:
	public-inbox-init -V2 devel devel/ http://lore.altlinux.org/devel \
		devel@altlinux.org devel@altlinux.ru devel@lists.altlinux.org devel@lists.altlinux.ru devel@linux.iplabs.ru mandrake-russian@linuxteam.iplabs.ru sisyphus@linuxteam.iplabs.ru
	public-inbox-index devel

Example config snippet for mirrors.
Newsgroup available over NNTP:
	nntp://lore.altlinux.org/org.altlinux.lists.devel


AGPL code for this site: git clone https://public-inbox.org/public-inbox.git