From: Paolo Bonzini <pbonzini@redhat.com>
Date: Fri, 4 Sep 2020 14:06:06 +0000 (-0400)
Subject: mtest2make: add support for introspected test dependencies
X-Git-Tag: v5.2.0-rc0~82^2~49
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=48a81fd5b42e854e6c4b70cec60e023db9675e33;p=thirdparty%2Fqemu.git

mtest2make: add support for introspected test dependencies

Right now all "make check" targets depend blindly on "all".  If Meson
is 0.56.0 or newer, we can use the correct dependencies using the new
"depends" entry in "meson introspect --tests".

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
---

diff --git a/Makefile b/Makefile
index 9af24f1e8cc..54fc1a9d100 100644
--- a/Makefile
+++ b/Makefile
@@ -78,7 +78,7 @@ ${ninja-targets-c_COMPILER} ${ninja-targets-cpp_COMPILER}: .var.command += -MP
 # reread (and MESON won't be empty anymore).
 ifneq ($(MESON),)
 Makefile.mtest: build.ninja scripts/mtest2make.py
-	$(MESON) introspect --tests --benchmarks | $(PYTHON) scripts/mtest2make.py > $@
+	$(MESON) introspect --targets --tests --benchmarks | $(PYTHON) scripts/mtest2make.py > $@
 -include Makefile.mtest
 endif
 
diff --git a/scripts/mtest2make.py b/scripts/mtest2make.py
index 9cbb2e374d1..c3489a4605a 100644
--- a/scripts/mtest2make.py
+++ b/scripts/mtest2make.py
@@ -5,6 +5,7 @@
 # Author: Paolo Bonzini <pbonzini@redhat.com>
 
 from collections import defaultdict
+import itertools
 import json
 import os
 import shlex
@@ -36,7 +37,7 @@ SPEED = quick
 introspect = json.load(sys.stdin)
 i = 0
 
-def process_tests(test, suites):
+def process_tests(test, targets, suites):
     global i
     env = ' '.join(('%s=%s' % (shlex.quote(k), shlex.quote(v))
                     for k, v in test['env'].items()))
@@ -58,12 +59,19 @@ def process_tests(test, suites):
     i += 1
     if test['workdir'] is not None:
         print('.test.dir.%d := %s' % (i, shlex.quote(test['workdir'])))
+
+    if 'depends' in test:
+        deps = (targets.get(x, []) for x in test['depends'])
+        deps = itertools.chain.from_iterable(deps)
+    else:
+        deps = ['all']
+
     print('.test.name.%d := %s' % (i, test['name']))
     print('.test.driver.%d := %s' % (i, driver))
     print('.test.env.%d := $(.test.env) %s' % (i, env))
     print('.test.cmd.%d := %s' % (i, cmd))
     print('.PHONY: run-test-%d' % (i,))
-    print('run-test-%d: all' % (i,))
+    print('run-test-%d: %s' % (i, ' '.join(deps)))
     print('\t@$(call .test.run,%d,$(.test.output-format))' % (i,))
 
     test_suites = test['suite'] or ['default']
@@ -102,16 +110,19 @@ def emit_suite(name, suite, prefix):
     print('.tests += $(.test.$(SPEED).%s)' % (target, ))
     print('endif')
 
+targets = {t['id']: [os.path.relpath(f) for f in t['filename']]
+           for t in introspect['targets']}
+
 testsuites = defaultdict(Suite)
 for test in introspect['tests']:
-    process_tests(test, testsuites)
+    process_tests(test, targets, testsuites)
 emit_prolog(testsuites, 'check')
 for name, suite in testsuites.items():
     emit_suite(name, suite, 'check')
 
 benchsuites = defaultdict(Suite)
 for test in introspect['benchmarks']:
-    process_tests(test, benchsuites)
+    process_tests(test, targets, benchsuites)
 emit_prolog(benchsuites, 'bench')
 for name, suite in benchsuites.items():
     emit_suite(name, suite, 'bench')