Changeset 2941 for trunk

Timestamp:

Jan 27, 2010, 9:53:16 PM (15 years ago)

Author:

broder

Message:

Add code to invirt-reload to de-duplicate multiple invocations. (LP: #439426)

This uses the dpkg triggers mechanism to de-duplicate multiple
invocations of invirt-reload over the course of a single dpkg run.

The code is largely lifted from Ubuntu's update-initramfs.

Location:

trunk/packages/invirt-base

Files:

• debian/changelog (modified) (1 diff)
• debian/invirt-base.postinst (modified) (1 diff)
• scripts/invirt-reload (modified) (1 diff)

trunk/packages/invirt-base/debian/changelog

@@ -1 +1 @@
 invirt-base (0.0.29) unstable; urgency=low
 
+  [ Greg Brockman ]
   * Added a safestructs for doing config without raising.
 
- -- Greg Brockman <gdb@mit.edu>  Tue, 19 Jan 2010 23:49:19 -0500
+  [ Evan Broder ]
+  * Support running invirt-reload directly from a package postinst,
+    instead of via triggers. (LP: #439426)
+
+ -- Evan Broder <broder@mit.edu>  Wed, 27 Jan 2010 21:18:07 -0500
 
 invirt-base (0.0.28) unstable; urgency=low

trunk/packages/invirt-base/debian/invirt-base.postinst

@@ -27 +27 @@
 
     triggered)
-        invirt-reload
+        if dpkg --compare-versions "$DPKG_RUNNING_VERSION" ge '1.14.5ubuntu10~~'; then
+            invirt-reload
+        else
+            DPKG_MAINTSCRIPT_PACKAGE='' invirt-reload
+        fi
     ;;
 

trunk/packages/invirt-base/scripts/invirt-reload

@@ -1 +1 @@
 #!/bin/bash
+
+if [ "$DPKG_MAINTSCRIPT_PACKAGE" != '' ] && \
+    [ $# = 0 ] && \
+    dpkg-trigger --check-supported 2>/dev/null; then
+    if dpkg-trigger --no-await invirt-base; then
+        echo "invirt-reload: deferring update (trigger activated)"
+        exit 0
+    fi
+fi
 
 for script in $(run-parts --test /etc/init.d); do