pw_poller: New tree selection mechanism

Firstly, use next/pending-fixes instead of riscv/fixes. Secondly, when
determining tree, first look for Fixes: tags, and try to apply to
fixes. If that does not work, fallback to for-next.

Signed-off-by: Björn Töpel <[email protected]>

Author: bjorn-rivos

README.rst

@@ -46,7 +46,9 @@ Clone the RISC-V trees::
  $ mkdir trees
  $ git clone https://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux.git
  $ cd linux
- $ git worktree add ../fixes -b fixes origin/fixes
+ $ git remote add next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
+ $ git fetch next
+ $ git worktree add ../fixes -b fixes next/pending-fixes
  $ git worktree add ../for-next -b for-next origin/for-next
 
 A corresponding config file for the above would be::
@@ -62,7 +64,7 @@ A corresponding config file for the above would be::
  
  [trees]
  for-next = for-next,for-next,origin,origin/for-next
- fixes = fixes,fixes,origin,origin/fixes
+ fixes = fixes,fixes,next,next/pending-fixes
 
 Tests
 =====

pw_poller.py

@@ -21,7 +21,7 @@
 from pw import Patchwork
 from pw import PwSeries
 import core
-import re
+import netdev
 
 
 class IncompleteSeries(Exception):
@@ -103,17 +103,10 @@ def _series_determine_tree(self, s: PwSeries) -> str:
                 s.tree_name = 'for-next'
             return f"Pull request for {s.tree_name}"
 
-        # If there's a Fixes: tag, assume the fixes tree
-        commits = []
-        regex = re.compile(r'^Fixes: [a-f0-9]* \(')
-        for p in s.patches:
-            commits += regex.findall(p.raw_patch)
-        if commits:
-            s.tree_name = 'fixes'
-        else:
-            s.tree_name = 'for-next'
-
-        # XXX fallback to something else?
+        if "fixes" in self._trees and netdev.series_is_a_fix_for(s, self._trees["fixes"]):
+            s.tree_name = "fixes"
+        elif "for-next" in self._trees and self._trees["for-next"].check_applies(s):
+            s.tree_name = "for-next"
 
         if s.tree_name:
             log(f"Target tree - {s.tree_name}", "")