[igt-dev] [PATCH i-g-t v2 4/5] tests/meson.build: create testlists for tests

[Mauro Carvalho Chehab <mauro.chehab@linux.intel.com>]

From: Mauro Carvalho Chehab <mchehab@kernel.org>

Let's dynamically create testlists for during build time, as this
can speed up a lot the validation check for testplan.

Ideally, all it would need to to that would be to use this
logic at the end of tests/meson.build:

    foreach testexe : test_executables
        prog = testexe.name()

        output = prog.split('/').get(-1) + '.testlist'
        custom_target(output,
                     build_by_default : true,
                     command : [ testexe.full_path(), '--show-testlist'],
                     capture : true,
                     depends : testexe,
                     output : output)

Unfortunately, this requies Meson >= 0.54. So, we need to add
one custom_target per executable() call.

Also, meson does a very crappy job when checking for dependencies
created with executable targets, as it tries to find all binaries
during meson runtime, and not while running ninja. Due to that,
we also had to change the logic to call an existing binary with:

-	command : [ testexe.full_path(), '--show-testlist'],
+	command : [ '/usr/bin/sh', '-c', testexe.full_path() + ' --show-testlist']

Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
---
 tests/meson.build | 60 +++++++++++++++++++++++++++++++++++++++++------
 1 file changed, 53 insertions(+), 7 deletions(-)

diff --git a/tests/meson.build b/tests/meson.build
index 3116c458d60b..9b7301dbf569 100644
--- a/tests/meson.build
+++ b/tests/meson.build
@@ -353,33 +353,57 @@ test_executables = []
 test_list = []
 
 foreach prog : test_progs
-	test_executables += executable(prog, [prog + '.c'] + extra_sources.get(prog, []),
+	testexe = executable(prog, [prog + '.c'] + extra_sources.get(prog, []),
 		   dependencies : test_deps + extra_dependencies.get(prog, []),
 		   install_dir : libexecdir,
 		   install_rpath : libexecdir_rpathdir,
 		   install : true)
+	test_executables += testexe
 	test_list += prog
+	name = prog.split('/').get(-1)
+	custom_target(name + '.testlist',
+		     build_by_default : true,
+		     command : [ '/usr/bin/sh', '-c', testexe.full_path() + ' --show-testlist'],
+		     capture : true,
+		     depends : testexe,
+		     output : name + '.testlist')
 endforeach
 
 foreach prog : i915_progs
-	test_executables += executable(prog,
+	testexe = executable(prog,
 		   [join_paths('i915', prog + '.c')] + extra_sources.get(prog, []),
 		   dependencies : test_deps + extra_dependencies.get(prog, []),
 		   install_dir : libexecdir,
 		   install_rpath : libexecdir_rpathdir,
 		   install : true)
+	test_executables += testexe
 	test_list += prog
+	name = prog.split('/').get(-1)
+	custom_target(name + '.testlist',
+		     build_by_default : true,
+		     command : [ '/usr/bin/sh', '-c', testexe.full_path() + ' --show-testlist'],
+		     capture : true,
+		     depends : testexe,
+		     output : name + '.testlist')
 endforeach
 
 if build_xe
 	foreach prog : xe_progs
-		test_executables += executable(prog,
+		testexe = executable(prog,
 			   [join_paths('xe', prog + '.c')] + extra_sources.get(prog, []),
 			   dependencies : test_deps + extra_dependencies.get(prog, []),
 			   install_dir : libexecdir,
 			   install_rpath : libexecdir_rpathdir,
 			   install : true)
 		test_list += prog
+		test_executables += testexe
+		name = prog.split('/').get(-1)
+		custom_target(name + '.testlist',
+			     build_by_default : true,
+			     command : [ '/usr/bin/sh', '-c', testexe.full_path() + ' --show-testlist'],
+			     capture : true,
+			     depends : testexe,
+			     output : name + '.testlist')
 	endforeach
 	build_info += 'Xe **experimental** tests enabled.'
 endif
@@ -395,7 +419,7 @@ endforeach
 
 if chamelium.found()
 	foreach prog : chamelium_progs
-		test_executables += executable(prog,
+		testexe = executable(prog,
 				 [join_paths('chamelium', prog + '.c'),
 					join_paths('chamelium', 'kms_chamelium_helper.c')],
 				 dependencies : test_deps,
@@ -403,16 +427,32 @@ if chamelium.found()
 				 install_rpath : libexecdir_rpathdir,
 				 install : true)
 		test_list += prog
+		test_executables += testexe
+		name = prog.split('/').get(-1)
+		custom_target(name + '.testlist',
+			     build_by_default : true,
+			     command : [ '/usr/bin/sh', '-c', testexe.full_path() + ' --show-testlist'],
+			     capture : true,
+			     depends : testexe,
+			     output : name + '.testlist')
 	endforeach
 	test_deps += chamelium
 
-	test_executables += executable('kms_chamelium_color',
+	name = 'kms_chamelium_color'
+	testexe = executable('kms_chamelium_color',
 				[ 'chamelium/kms_chamelium_color.c', 'kms_color_helper.c' ],
 				dependencies : test_deps + [ chamelium ],
 				install_dir : libexecdir,
 				install_rpath : libexecdir_rpathdir,
 				install : true)
-	test_list += 'kms_chamelium_color'
+	test_list += name
+	test_executables += testexe
+	custom_target(name + '.testlist',
+		     build_by_default : true,
+		     command : [ '/usr/bin/sh', '-c', testexe.full_path() + ' --show-testlist'],
+		     capture : true,
+		     depends : testexe,
+		     output : name + '.testlist')
 endif
 
 subdir('amdgpu')
@@ -448,11 +488,17 @@ foreach prog : test_list
 	test('testcase check ' + prog, test_script, args : prog)
 endforeach
 
-executable('gem_stress', 'i915/gem_stress.c',
+testexe = executable('gem_stress', 'i915/gem_stress.c',
 	   install : true,
 	   install_dir : libexecdir,
 	   install_rpath : libexecdir_rpathdir,
 	   dependencies : igt_deps)
+custom_target('gem_stress.testlist',
+                build_by_default : true,
+                command : [ '/usr/bin/sh', '-c', testexe.full_path() + ' --show-testlist'],
+                capture : true,
+                depends : testexe,
+                output : 'gem_stress.testlist')
 
 image_files = [
   '1080p-left.png',
-- 
2.40.1