conflict check before install

pisi/api.py

@@ -237,7 +237,7 @@ def get_install_order(packages):
     @param packages: list of package names -> list_of_strings
     """
     install_order = pisi.operations.install.plan_install_pkg_names
-    i_graph, order = install_order(packages, ignore_package_conflicts=True)
+    i_graph, order = install_order(packages)
     return order
 
 def get_remove_order(packages):
@@ -267,7 +267,7 @@ def get_base_upgrade_order(packages):
     @param packages: list of package names -> list_of_strings
     """
     upgrade_order = pisi.operations.upgrade.upgrade_base
-    order = upgrade_order(packages, ignore_package_conflicts=True)
+    order = upgrade_order(packages)
     return list(order)
 
 def get_conflicts(packages):

pisi/operations/helper.py

@@ -60,7 +60,7 @@ def check_conflicts(order, packagedb):
                     conflicts)
 
         if not ctx.ui.confirm(_('Remove the following conflicting packages?')):
-            raise Exception(_("Conflicts remain"))
+            raise Exception(_("Conflicting packages should be removed to continue"))
 
     return list(C)
 

pisi/operations/install.py

@@ -32,6 +32,7 @@ def install_pkg_names(A, reinstall = False):
     installs"""
 
     installdb = pisi.db.installdb.InstallDB()
+    packagedb = pisi.db.packagedb.PackageDB()
 
     A = [str(x) for x in A] #FIXME: why do we still get unicode input here? :/ -- exa
     # A was a list, remove duplicates
@@ -83,6 +84,10 @@ def install_pkg_names(A, reinstall = False):
 
     ignore_dep = ctx.config.get_option('ignore_dependency')
 
+    conflicts = []
+    if not ctx.get_option('ignore_package_conflicts'):
+        conflicts = operations.helper.check_conflicts(order, packagedb)
+
     paths = []
     for x in order:
         ctx.ui.info(util.colorize(_("Downloading %d / %d") % (order.index(x)+1, len(order)), "yellow"))
@@ -93,6 +98,9 @@ def install_pkg_names(A, reinstall = False):
     if ctx.get_option('fetch_only'):
         return
 
+    if conflicts:
+        operations.remove.remove_conflicting_packages(conflicts)
+
     for path in paths:
         ctx.ui.info(util.colorize(_("Installing %d / %d") % (paths.index(path)+1, len(paths)), "yellow"))
         install_op = atomicoperations.Install(path)
@@ -210,7 +218,7 @@ in the respective order to satisfy extra dependencies:
 
     return True
 
-def plan_install_pkg_names(A, ignore_package_conflicts = False):
+def plan_install_pkg_names(A):
     # try to construct a pisi graph of packages to
     # install / reinstall
 
@@ -242,8 +250,4 @@ def plan_install_pkg_names(A, ignore_package_conflicts = False):
         G_f.write_graphviz(sys.stdout)
     order = G_f.topological_sort()
     order.reverse()
-    if not ctx.get_option('ignore_package_conflicts') and not ignore_package_conflicts:
-        conflicts = operations.helper.check_conflicts(order, packagedb)
-        if conflicts:
-            operations.remove.remove_conflicting_packages(conflicts)
     return G_f, order

pisi/operations/upgrade.py

@@ -149,6 +149,10 @@ def upgrade_pkg_names(A = [], repo=None):
 
     ctx.ui.notify(ui.packagestogo, order = order)
 
+    conflicts = []
+    if not ctx.get_option('ignore_package_conflicts'):
+        conflicts = operations.helper.check_conflicts(order, packagedb)
+
     paths = []
     for x in order:
         ctx.ui.info(util.colorize(_("Downloading %d / %d") % (order.index(x)+1, len(order)), "yellow"))
@@ -159,10 +163,8 @@ def upgrade_pkg_names(A = [], repo=None):
     if ctx.get_option('fetch_only'):
         return
 
-    if not ctx.get_option('ignore_package_conflicts'):
-        conflicts = operations.helper.check_conflicts(order, packagedb)
-        if conflicts:
-            operations.remove.remove_conflicting_packages(conflicts)
+    if conflicts:
+        operations.remove.remove_conflicting_packages(conflicts)
 
     operations.remove.remove_replaced_packages(replaces.keys())
     operations.remove.remove_obsoleted_packages()
@@ -231,7 +233,7 @@ def plan_upgrade(A):
     order.reverse()
     return G_f, order
 
-def upgrade_base(A = set(), ignore_package_conflicts = False):
+def upgrade_base(A = set()):
     installdb = pisi.db.installdb.InstallDB()
     componentdb = pisi.db.componentdb.ComponentDB()
     ignore_build = ctx.get_option('ignore_build_no')
@@ -242,7 +244,7 @@ def upgrade_base(A = set(), ignore_package_conflicts = False):
             if extra_installs:
                 ctx.ui.warning(_('Safety switch: Following packages in system.base will be installed: ') +
                                util.strlist(extra_installs))
-            G_f, install_order = operations.install.plan_install_pkg_names(extra_installs, ignore_package_conflicts)
+            G_f, install_order = operations.install.plan_install_pkg_names(extra_installs)
             extra_upgrades = filter(lambda x: is_upgradable(x, ignore_build), systembase - set(install_order))
             upgrade_order = []
             if extra_upgrades: