behave more like portage, and don't waste time resolving reverse dependencies during force removal of a package

1 files changed, 22 insertions, 19 deletions

diff --git a/src/backend/solverevdeps.py b/src/backend/solverevdeps.py
index bd90e2f..0400be9 100644
--- a/src/backend/solverevdeps.py
+++ b/src/backend/solverevdeps.py
@@ -17,25 +17,28 @@ signal.signal(signal.SIGINT, sigint_handler)
 
 
 @animation.wait('resolving reverse dependencies')
-def start(pkgname=None):
+def start(pkgname=None, depclean=False, unmerge=False):
     is_needed = int(0)
 
-    p_exe = subprocess.Popen(
-        ['emerge', '--depclean', '--quiet', '--pretend', '--verbose'] + list(pkgname), stdout=subprocess.PIPE, stderr=subprocess.PIPE)
-
-    try:
-        stdout, stderr = p_exe.communicate()
-
-        for p_out in stdout.decode('utf-8').splitlines():
-            if any(key in p_out for key in ["pulled in by:", "required"]):
-                is_needed = int(1)
-
-        pickle.dump(is_needed, open(os.path.join(
-            sisyphus.getfs.p_mtd_dir, "sisyphus_pkgrevdeps.pickle"), "wb"))
-    except KeyboardInterrupt:
-        p_exe.terminate()
+    if unmerge:
+        pass  # behave like portage and ignore reverse dependencies
+    else:
         try:
-            p_exe.wait(1)
-        except subprocess.TimeoutExpired:
-            p_exe.kill()
-        sys.exit()
+            p_exe = subprocess.Popen(['emerge', '--depclean', '--quiet', '--pretend',
+                                     '--verbose'] + list(pkgname), stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+
+            stdout, stderr = p_exe.communicate()
+
+            for p_out in stdout.decode('utf-8').splitlines():
+                if any(key in p_out for key in ["pulled in by:", "required"]):
+                    is_needed = int(1)
+
+            pickle.dump(is_needed, open(os.path.join(
+                sisyphus.getfs.p_mtd_dir, "sisyphus_pkgrevdeps.pickle"), "wb"))
+        except KeyboardInterrupt:
+            p_exe.terminate()
+            try:
+                p_exe.wait(1)
+            except subprocess.TimeoutExpired:
+                p_exe.kill()
+            sys.exit()