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[PATCH] ninjatool: rebuild multi-output targets if outputs are missing
From: |
Paolo Bonzini |
Subject: |
[PATCH] ninjatool: rebuild multi-output targets if outputs are missing |
Date: |
Fri, 11 Sep 2020 15:42:20 +0200 |
The "stamp file trick" used to group targets of a single multi-output rule
prevents the user from deleting one such target in order to force its
rebuild. Doing so will not touch the stamp file, and therefore only
the dummy ":" command will be executed.
With this patch, ninjatool writes rules that force-rebuild the stamp
file if any of its outputs are missing. Rebuilding the missing
target therefore causes the stamp file to be rebuilt too.
Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---
scripts/ninjatool.py | 3 +++
1 file changed, 3 insertions(+)
diff --git a/scripts/ninjatool.py b/scripts/ninjatool.py
index 627a1cab45..6f0e35c727 100755
--- a/scripts/ninjatool.py
+++ b/scripts/ninjatool.py
@@ -908,6 +908,9 @@ class Ninja2Make(NinjaParserEventsWithVars):
else:
stamp = '%s@%s.stamp' % (rule, sha1_text(targets)[0:11])
self.print('%s: %s; @:' % (targets, stamp))
+ self.print('ifneq (%s, $(wildcard %s))' % (targets, targets))
+ self.print('.PHONY: %s' % (stamp, ))
+ self.print('endif')
self.print('%s: %s | %s; ${ninja-command-restat}' % (stamp,
inputs, orderonly))
self.rule_targets[rule].append(stamp)
self.stamp_targets[rule].append(stamp)
--
2.26.2
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