Any package should remove the package it replaces before it is installed.

This is a fix for a problem where a package replaces another in system.base
User tries to install a single package outside of system.base .. safety
forces to install the system.base packages... but because the package does
not remove the replaced package before it gives file conflicts an stops
installation. (udev - udev-extras ex.)

pisi/atomicoperations.py

@@ -139,6 +139,10 @@ class Install(AtomicOperation):
         self.operation = INSTALL
 
     def install(self, ask_reinstall = True):
+
+        # Any package should remove the package it replaces before
+        self.check_replaces()
+
         ctx.ui.status(_('Installing %s, version %s, release %s, build %s') %
                 (self.pkginfo.name, self.pkginfo.version,
                  self.pkginfo.release, self.pkginfo.build))
@@ -175,6 +179,11 @@ class Install(AtomicOperation):
             import pisi.comariface as comariface
             comariface.get_link()
 
+    def check_replaces(self):
+        for replaced in self.pkginfo.replaces:
+            if self.installdb.has_package(replaced.package):
+                pisi.operations.remove.remove_replaced_packages([replaced.package])
+
     def check_versioning(self, version):
         if not pisi.version.Version.valid(version):
             raise Error("%s is not a valid PiSi version format" % version)

pisi/operations/upgrade.py

@@ -165,7 +165,6 @@ def upgrade(A=[], repo=None):
     if conflicts:
         operations.remove.remove_conflicting_packages(conflicts)
 
-    operations.remove.remove_replaced_packages(replaces.keys())
     operations.remove.remove_obsoleted_packages()
 
     for path in paths: