[Fedora-livecd-list] [PATCH] Add support for prelinking the system

[Jeremy Katz]

prelink the system after packages are installed.  This should lead to some
speed-ups at runtime.  Allow skipping prelink by passing --no-prelink
---
 creator/livecd-creator |   16 +++++++++++++++-
 1 files changed, 15 insertions(+), 1 deletions(-)

diff --git a/creator/livecd-creator b/creator/livecd-creator
index c7232e0..84a8f67 100755
--- a/creator/livecd-creator
+++ b/creator/livecd-creator
@@ -601,6 +601,14 @@ class InstallationTarget:
                             preexec_fn=self.run_in_root)
         return True
 
+    def prelinkSystem(self):
+        # prelink the system
+        instroot = "%s/install_root" %(self.build_dir,)
+        if os.path.exists("%s/usr/sbin/prelink" %(instroot,)):
+            subprocess.call(["/usr/sbin/prelink", "-mRavN"],
+                            preexec_fn=self.run_in_root)
+        return True
+
     def launchShell(self):
         print "Launching shell. Exit to continue."
         print "----------------------------------"
@@ -737,6 +745,7 @@ def main():
     base_on = None
     kscfg = None
     skip_compression = False
+    skip_prelink = False
     uncompressed_size = 3072
     give_shell = False
 
@@ -745,7 +754,7 @@ def main():
                                    ["help", "repo=", "base-on=", "package=",
                                     "exclude-package=", "fslabel=", "config=",
                                     "skip-compression", "uncompressed-size=",
-                                    "shell"])
+                                    "shell", "no-prelink"])
     except getopt.GetoptError:
         usage()
         sys.exit(2)
@@ -761,6 +770,9 @@ def main():
         if o in ("-s", "--skip-compression"):
             skip_compression = True
             continue
+        if o in ("--no-prelink",):
+            skip_prelink = True
+            continue
         if o in ("-u", "--uncompressed-size"):
             uncompressed_size = int(a)
             continue
@@ -842,6 +854,8 @@ def main():
             sys.exit(1)
         target.configureSystem(ksparser)
         target.createInitramfs()
+        if not skip_prelink:
+            target.prelinkSystem()
         if ksparser.handler.selinux.selinux:
             target.relabelSystem()
         target.configureBootloader()
-- 
1.5.0.5