1 files changed, 69 insertions, 0 deletions
diff --git a/testing/source/pkgtools/doinst.sh b/testing/source/pkgtools/doinst.sh
new file mode 100644
index 00000000..d14a6787
--- /dev/null
+++ b/testing/source/pkgtools/doinst.sh
@@ -0,0 +1,69 @@
+#!/bin/bash
+# Migrate the package database and related directories from the long-time
+# (stupid) directory /var/log to /var/lib/pkgtools.
+#
+# The removed_* directories will remain under /var/log (but moved to
+# /var/log/pkgtools) as they contain log files of previous operations,
+# not anything that's actively used for package management. Also, the
+# removed_* directories can become quite large compared with the database.
+#
+# First, if it's just a case of missing symlinks, make them. Don't make them
+# if the directories exist in /var/log - we'll do a proper migration in that
+# case.
+for directory in packages scripts setup ; do
+  if [ ! -L var/log/$directory -a ! -d var/log/$directory ]; then
+    if [ -d var/lib/pkgtools/$directory ]; then
+      # Make the symlink:
+      ( cd var/log ; ln -sf ../lib/pkgtools/$directory . )    
+    fi
+  fi
+done
+for directory in removed_packages removed_scripts ; do
+  if [ ! -L var/log/$directory -a ! -d var/log/$directory ]; then
+    mkdir -p var/log/pkgtools/$directory
+    ( cd var/log ; ln -sf pkgtools/$directory . )
+  fi
+  if [ ! -L var/lib/pkgtools/$directory -a ! -d var/lib/pkgtools/$directory ]; then
+    mkdir -p var/lib/pkgtools
+    ( cd var/lib/pkgtools ; ln -sf ../../log/pkgtools/$directory . )
+  fi
+done
+# If at this point /var/log/packages is not a symlink, we need to do the
+# migration. We should already have a lock on being the only install script
+# that's currently running, but also get a lock on ldconfig to freeze any
+# other package operations that are happening now until after the migration
+# is complete.
+if [ ! -L var/log/packages ]; then
+  if [ ! -d run/lock/pkgtools ]; then
+    mkdir -p run/lock/pkgtools
+  fi
+  ( flock 9 || exit 11
+    # Don't migrate if tar is running, as there may still be package operations
+    # going on in another process:
+    while pidof tar 1> /dev/null 2> /dev/null ; do
+      sleep 15
+    done
+    # Just to be a bit safer from race conditions:
+    sleep 5
+    # First, move the removed_* directories into a pkgtools subdirectory:
+    mkdir -p var/log/pkgtools
+    for directory in removed_packages removed_scripts ; do
+      if [ ! -d var/log/pkgtools/$directory ]; then
+        mkdir -p var/log/pkgtools/$directory
+        # Move anything found in the old location, then remove it:
+        mv var/log/$directory/* var/log/pkgtools/$directory 2> /dev/null
+        rm -rf var/log/$directory
+        # Make a symlink:
+        ( cd var/log ; ln -sf pkgtools/$directory . )
+      fi 
+    done
+    for directory in packages scripts setup ; do
+      mkdir -p var/lib/pkgtools/$directory
+      mv var/log/$directory/* var/lib/pkgtools/$directory 2> /dev/null
+      rm -rf var/log/$directory
+      ( cd var/log
+        ln -sf ../lib/pkgtools/$directory .
+      )
+    done
+  ) 9> run/lock/pkgtools/ldconfig.lock
+fi