Alexander Kanavin <[email protected]> escreveu no dia terça,
17/10/2023 à(s) 14:31:

> 'bitbake -S printdiff' is a useful diagnostic facility for finding out
> why sstate is not being reused, but until now it had no tests that would
> ensure it works. This commit adds three basic scenarios:
>
> 1. make a change in a really basic, common recipe that is at the very root
> of dependency trees (quilt-native), and ensure that change is correctly
> discovered when
> building an image.
>
> 2. make a change in gcc-source recipe, which is somewhat special
> (operates in work-shared), and ensure that gcc-runtime builds track
> that down as well.
>
> 3. make a change in base_do_configure() definition from base.bbclass,
> which is not recipe-specific, but affects many basic recipes, and ensure
> that
> is correctly reported as well.
>
> The test itself actually runs twice:
> - first against a fully populated build directory, where
> the printdiff code is guaranteed to find the correct previous
> stamp that can be compared with in a predictable manner.
>
> - then in an empty build directory where the printdiff code
> goes to look in the sstate cache, and so the existence of the
> previous signature can be tested, but not the difference with it
> (what the exact difference would be is unpredictable as the
> sstate cache is indeed shared between many builds).
>
> Signed-off-by: Alexander Kanavin <[email protected]>
> ---
>  .../base-do-configure-modified.bbclass        |   3 +
>  .../gcc-source/gcc-source_%.bbappend          |   2 +
>  .../quilt-native/quilt-native_%.bbappend      |   2 +
>  meta/lib/oeqa/selftest/cases/sstatetests.py   | 104 ++++++++++++++++++
>  4 files changed, 111 insertions(+)
>  create mode 100644
> meta-selftest/classes/base-do-configure-modified.bbclass
>  create mode 100644
> meta-selftest/recipes-test/gcc-source/gcc-source_%.bbappend
>  create mode 100644
> meta-selftest/recipes-test/quilt-native/quilt-native_%.bbappend
>
> diff --git a/meta-selftest/classes/base-do-configure-modified.bbclass
> b/meta-selftest/classes/base-do-configure-modified.bbclass
> new file mode 100644
> index 00000000000..3f96827a428
> --- /dev/null
> +++ b/meta-selftest/classes/base-do-configure-modified.bbclass
> @@ -0,0 +1,3 @@
> +base_do_configure:append () {
> +       echo "this changes base_do_configure() definiton"
> +}
> diff --git a/meta-selftest/recipes-test/gcc-source/gcc-source_%.bbappend
> b/meta-selftest/recipes-test/gcc-source/gcc-source_%.bbappend
> new file mode 100644
> index 00000000000..205720982cb
> --- /dev/null
> +++ b/meta-selftest/recipes-test/gcc-source/gcc-source_%.bbappend
> @@ -0,0 +1,2 @@
> +# This bbappend is used to alter the recipe using the test_recipe.inc
> file created by tests.
> +include test_recipe.inc
> diff --git
> a/meta-selftest/recipes-test/quilt-native/quilt-native_%.bbappend
> b/meta-selftest/recipes-test/quilt-native/quilt-native_%.bbappend
> new file mode 100644
> index 00000000000..205720982cb
> --- /dev/null
> +++ b/meta-selftest/recipes-test/quilt-native/quilt-native_%.bbappend
> @@ -0,0 +1,2 @@
> +# This bbappend is used to alter the recipe using the test_recipe.inc
> file created by tests.
> +include test_recipe.inc
> diff --git a/meta/lib/oeqa/selftest/cases/sstatetests.py
> b/meta/lib/oeqa/selftest/cases/sstatetests.py
> index bdad9088d37..29e31f2ef9f 100644
> --- a/meta/lib/oeqa/selftest/cases/sstatetests.py
> +++ b/meta/lib/oeqa/selftest/cases/sstatetests.py
> @@ -773,3 +773,107 @@ addtask tmptask2 before do_tmptask1
>                  latestfiles = sorted(filedates.keys(), key=lambda f:
> filedates[f])[-2:]
>                  bb.siggen.compare_sigfiles(latestfiles[-2],
> latestfiles[-1], recursecb)
>                  self.assertEqual(recursecb_count,1)
> +
> +class SStatePrintdiff(SStateBase):
> +    def run_test_printdiff_changerecipe(self, target, change_recipe,
> change_bbtask, change_content, expected_sametmp_output,
> expected_difftmp_output):
> +        self.write_config("""
> +TMPDIR = "${TOPDIR}/tmp-sstateprintdiff"
> +""")
> +        self.track_for_cleanup(self.topdir + "/tmp-sstateprintdiff")
> +        bitbake(target)
> +        bitbake("-S none {}".format(target))
> +        bitbake(change_bbtask)
> +        self.write_recipeinc(change_recipe, change_content)
> +        result_sametmp = bitbake("-S printdiff {}".format(target))
> +
> +        self.write_config("""
> +TMPDIR = "${TOPDIR}/tmp-sstateprintdiff-2"
> +""")
> +        self.track_for_cleanup(self.topdir + "/tmp-sstateprintdiff-2")
> +        result_difftmp = bitbake("-S printdiff {}".format(target))
> +
> +        self.delete_recipeinc(change_recipe)
> +        for item in expected_sametmp_output:
> +            self.assertIn(item, result_sametmp.output)
> +        for item in expected_difftmp_output:
> +            self.assertIn(item, result_difftmp.output)
> +
> +    def run_test_printdiff_changeconfig(self, target, change_content,
> expected_sametmp_output, expected_difftmp_output):
> +        self.write_config("""
> +TMPDIR = "${TOPDIR}/tmp-sstateprintdiff"
> +""")
> +        self.track_for_cleanup(self.topdir + "/tmp-sstateprintdiff")
> +        bitbake(target)
> +        bitbake("-S none {}".format(target))
> +        self.append_config(change_content)
> +        result_sametmp = bitbake("-S printdiff {}".format(target))
> +
> +        self.write_config("""
> +TMPDIR = "${TOPDIR}/tmp-sstateprintdiff-2"
> +""")
> +        self.append_config(change_content)
> +        self.track_for_cleanup(self.topdir + "/tmp-sstateprintdiff-2")
> +        result_difftmp = bitbake("-S printdiff {}".format(target))
> +
> +        for item in expected_sametmp_output:
> +            self.assertIn(item, result_sametmp.output)
> +        for item in expected_difftmp_output:
> +            self.assertIn(item, result_difftmp.output)
> +
> +
> +    # Check if printdiff walks the full dependency chain from the image
> target to where the change is in a specific recipe
> +    def test_image_minimal_vs_quilt(self):
> +        expected_output = ("Task quilt-native:do_install couldn't be used
> from the cache because:",
> +"We need hash",
> +"most recent matching task was")
> +        expected_sametmp_output = expected_output + ("Variable do_install
> value changed",'+    echo "this changes the task signature"')
> +        expected_difftmp_output = expected_output
> +
> +        self.run_test_printdiff_changerecipe("core-image-minimal",
> "quilt-native", "-c do_install quilt-native",
> +"""
> +do_install:append() {
> +    echo "this changes the task signature"
> +}
> +""",
> +expected_sametmp_output, expected_difftmp_output)
> +
> +    # Check if changes to gcc-source (which uses tmp/work-shared) are
> correctly discovered
> +    def test_gcc_runtime_vs_gcc_source(self):
> +        expected_output = ("Task gcc-source-13.2.0:do_preconfigure
> couldn't be used from the cache because:",
>

We should avoid using the PV=13.2.0 explicitly imo otherwise it will need
to be updated with the recipe forever.

The archiver selftest have a gcc-source-PV example
https://git.openembedded.org/openembedded-core/tree/meta/lib/oeqa/selftest/cases/archiver.py#n141

+"We need hash",
> +"most recent matching task was")
> +        expected_sametmp_output = expected_output + ("Variable
> do_preconfigure value changed",'+    print("this changes the task
> signature")')
> +        #FIXME: printdiff is supposed to find at least one preconfigure
> task signature in the sstate cache, but isn't able to
> +        #expected_difftmp_output = expected_output
> +        expected_difftmp_output = ()
> +
> +        self.run_test_printdiff_changerecipe("gcc-runtime", "gcc-source",
> "-c do_preconfigure gcc-source-13.2.0",
>

Same here

Jose


> +"""
> +python do_preconfigure:append() {
> +    print("this changes the task signature")
> +}
> +""",
> +expected_sametmp_output, expected_difftmp_output)
> +
> +    # Check if changing a really base task definiton is reported against
> multiple core recipes using it
> +    def test_image_minimal_vs_base_do_configure(self):
> +        expected_output = ("Task zstd-native:do_configure couldn't be
> used from the cache because:",
> +"Task texinfo-dummy-native:do_configure couldn't be used from the cache
> because:",
> +"Task ldconfig-native:do_configure couldn't be used from the cache
> because:",
> +"Task gettext-minimal-native:do_configure couldn't be used from the cache
> because:",
> +"Task tzcode-native:do_configure couldn't be used from the cache
> because:",
> +"Task makedevs-native:do_configure couldn't be used from the cache
> because:",
> +"Task pigz-native:do_configure couldn't be used from the cache because:",
> +"Task update-rc.d-native:do_configure couldn't be used from the cache
> because:",
> +"Task unzip-native:do_configure couldn't be used from the cache because:",
> +"Task gnu-config-native:do_configure couldn't be used from the cache
> because:",
> +"We need hash",
> +"most recent matching task was")
> +        expected_sametmp_output = expected_output + ("Variable
> base_do_configure value changed",'+     echo "this changes
> base_do_configure() definiton"')
> +        expected_difftmp_output = expected_output
> +
> +        self.run_test_printdiff_changeconfig("core-image-minimal",
> +"""
> +INHERIT += "base-do-configure-modified"
> +""",
> +expected_sametmp_output, expected_difftmp_output)
> --
> 2.39.2
>
>
> 
>
>

-- 
Best regards,

José Quaresma
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