[gdal-dev] There's something strange about two tests that are very similar
Even Rouault
even.rouault at spatialys.com
Wed Mar 13 09:04:08 PDT 2024
My intuition is that reading/writing ini file should be quite
straightforward (unless I'm missing some subtelties of the format). In
port/cpl_conv.cpp, we have a CPLLoadConfigOptionsFromFile() function
that does that in a specific way for the purposes of parsing the GDAL
configuration file
(https://gdal.org/user/configoptions.html#gdal-configuration-file). But
I can imagine we could have a more general std::map<std::string,
std::pair<std::string,std::string>> CPLLoadIniFile(const char*
pszIniFilename, CSLConstList papszOptions (if needed)) that would return
a map of section -> (key, value) pairs. Regarding an external project,
this might be considered but one has to evaluate if there are not
downsides (e.g will the effort to make it compile on all platforms and
make all analysis tools we use happy not be greater than its benefits)
Le 13/03/2024 à 15:00, Abel Pau via gdal-dev a écrit :
>
> Hi again,
>
> MiraMon files have had INI files containing metadata information for ages.
>
> To read and write sections and key/values from them, we use specific
> Windows functions
> (https://learn.microsoft.com/en-us/windows/win32/api/winbase/nf-winbase-getprivateprofilestring).
> When I started programming the driver, I had to create a function to
> do that as I couldn't use the Windows one.
>
> I suspect that these functions are not accurate and are failing.
>
> Is there any function in GDAL that can read INI files (at least to
> check if a section exists and to get the value of a key in an existing
> section)? If not, perhaps using the following could be considered:
> https://github.com/brofield/simpleini
>
> It seems to have an MIT license... If it's possible to use this
> parser, what would be the procedure? I noticed that Even added a
> parser for some command line arguments and perhaps something similar
> can be done with that.
>
> If not, is it possible for me to add some files in the MiraMonVector
> driver and use them?
>
> It's better to use something existing and multiplatform than to
> "reinvent the wheel" with some new function that can fail (in fact, is
> failing now).
>
> Thanks.
>
> *De:*gdal-dev <gdal-dev-bounces at lists.osgeo.org> *En nombre de *Abel
> Pau via gdal-dev
> *Enviado el:* dimecres, 13 de març de 2024 12:38
> *Para:* Even Rouault <even.rouault at spatialys.com>;
> gdal-dev at lists.osgeo.org
> *Asunto:* Re: [gdal-dev] There's something strange about two tests
> that are very similar
>
> Hi Even,
>
> thanks for your effort on that.
>
> I’ll spend some time analyzing that but I can imagine where the
> problem is.
>
> For your information our .REL files are generated in ANSI codification
> and when this kind of files are read I forgot to translate to UTF-8.
>
> It’s very probable that this is the mistake.
>
> I’ll tell you when I solve that!
>
> About
>
> 1)it’s not my intention to output part of the content file (I think
> that is part of the name which is bad composed because is read from
> this REL file)
>
> 2)Due to codification, certainly
>
> 3)It’s odd and I didn’t want to do that, of course! I’ll review
>
> 4)I used Valgrind some time, And I’ll do again, thanks
>
>
> Thanks for the report!
>
> *De:*Even Rouault <even.rouault at spatialys.com>
> *Enviado el:* dimecres, 13 de març de 2024 11:47
> *Para:*Abel Pau <a.pau at creaf.uab.cat>; gdal-dev at lists.osgeo.org
> *Asunto:* Re: [gdal-dev] There's something strange about two tests
> that are very similar
>
> Hi,
>
> I've checkout'ed your branch locally and I can reproduce the error
> when running the Python tests. Some of the CI checks give an
> interesting hint about this being related to a UTF8 issue, and I
> wondered why
>
> But running "ogrinfo
> autotest/ogr/data/miramon/Polygons/SimplePolygons/SimplePolFile.pol"
> outputs:
>
> """
>
> ERROR 4: Error pMMPolygonLayer.MMArc.pF: Cannot open file
> autotest/ogr/data/miramon/Polygons/SimplePolygons/SimplePolFile.arc
>
> [QUALITY:LINEAGE:PROCESS1]
> nOrganismes=1
> history=C:\MiraMon\MM64.exe
> date=20230628 16204988+0200
>
> [QUALITY:LINEAGE:PROCESS1:ORGANISME_1]
> IndividualName=Abel Pau
> PositionName=T�cnic SIG
> OrganisationName=Students and educational institutions
>
> [...]
>
> """"
>
> So there are several problems:
>
> 1) On failure, you shouldn't output the content of the file in the
> error message, to keep it brief the UTF-8 error comes from the fact
> that the file content is not UTF-8 encoded)
>
> 2) There is an error opening the file.
>
> 3) Interestingly something in your code *deletes* file
> autotest/ogr/data/miramon/Polygons/SimplePolygons/SimplePolFile.pol !
>
> 4) You should really invest in running Valgrind. After restoring the
> deleted file, I can see:
>
> $ valgrind ogrinfo
> autotest/ogr/data/miramon/Polygons/SimplePolygons/SimplePolFile.pol
> ==1737168== Memcheck, a memory error detector
> ==1737168== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward
> et al.
> ==1737168== Using Valgrind-3.15.0 and LibVEX; rerun with -h for
> copyright info
> ==1737168== Command: ogrinfo
> autotest/ogr/data/miramon/Polygons/SimplePolygons/SimplePolFile.pol
> ==1737168==
> ==1737168== Conditional jump or move depends on uninitialised value(s)
> ==1737168== at 0x4843C6F: strstr (in
> /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
> ==1737168== by 0x635FC44: MMReturnValueFromSectionINIFile
> (mm_wrlayr.c:5019)
> ==1737168== by 0x636219A: MMCheck_REL_FILE (mm_wrlayr.c:5785)
> ==1737168== by 0x63586B0: MMInitPolygonLayer (mm_wrlayr.c:1665)
> ==1737168== by 0x6358BC6: MMInitLayerByType (mm_wrlayr.c:1761)
> ==1737168== by 0x636B818: MMInitLayerToRead (mm_rdlayr.c:142)
> ==1737168== by 0x634D6A7: OGRMiraMonLayer::OGRMiraMonLayer(char
> const*, VSIVirtualHandle*, OGRSpatialReference const*, int, char**,
> MiraMonVectMapInfo*) (ogrmiramonlayer.cpp:219)
> ==1737168== by 0x634C03E: OGRMiraMonDataSource::Open(char const*,
> VSIVirtualHandle*, OGRSpatialReference const*, int, char**)
> (ogrmiramondatasource.cpp:71)
> ==1737168== by 0x634C997: OGRMiraMonDriverOpen(GDALOpenInfo*)
> (ogrmiramondriver.cpp:87)
> ==1737168== by 0x67DD68C: GDALDriver::Open(GDALOpenInfo*, bool)
> (gdaldriver.cpp:116)
> ==1737168== by 0x67F61F4: GDALOpenEx (gdaldataset.cpp:3745)
> ==1737168== by 0x10AC95: GDALDataset::Open(char const*, unsigned
> int, char const* const*, char const* const*, char const* const*)
> (gdal_priv.h:835)
> ==1737168==
> ==1737168== Conditional jump or move depends on uninitialised value(s)
> ==1737168== at 0x483EF58: strlen (in
> /usr/lib/x86_64-linux-gnu/valgrind/vgpreload_memcheck-amd64-linux.so)
> ==1737168== by 0x5262132: CPLStrdup (cpl_conv.cpp:316)
> ==1737168== by 0x635FC6E: MMReturnValueFromSectionINIFile
> (mm_wrlayr.c:5023)
> ==1737168== by 0x636219A: MMCheck_REL_FILE (mm_wrlayr.c:5785)
> ==1737168== by 0x63586B0: MMInitPolygonLayer (mm_wrlayr.c:1665)
> ==1737168== by 0x6358BC6: MMInitLayerByType (mm_wrlayr.c:1761)
> ==1737168== by 0x636B818: MMInitLayerToRead (mm_rdlayr.c:142)
> ==1737168== by 0x634D6A7: OGRMiraMonLayer::OGRMiraMonLayer(char
> const*, VSIVirtualHandle*, OGRSpatialReference const*, int, char**,
> MiraMonVectMapInfo*) (ogrmiramonlayer.cpp:219)
> ==1737168== by 0x634C03E: OGRMiraMonDataSource::Open(char const*,
> VSIVirtualHandle*, OGRSpatialReference const*, int, char**)
> (ogrmiramondatasource.cpp:71)
> ==1737168== by 0x634C997: OGRMiraMonDriverOpen(GDALOpenInfo*)
> (ogrmiramondriver.cpp:87)
> ==1737168== by 0x67DD68C: GDALDriver::Open(GDALOpenInfo*, bool)
> (gdaldriver.cpp:116)
> ==1737168== by 0x67F61F4: GDALOpenEx (gdaldataset.cpp:3745)
> ==1737168==
> [...]
>
> Le 12/03/2024 à 20:43, Abel Pau a écrit :
>
> >>> Are sure all needed files have been committed and pushed for the
> failing test?
>
> Yes, sure. 9 files are needed for oine polygon layer. Absolutely sure.
>
> >>> Perhaps an issue Windows CR-LF vs Unix LF end of line characters ?
> The default settings of git on Windows may mess with binary files.
> cf
> https://docs.github.com/en/get-started/getting-started-with-git/configuring-git-to-handle-line-endings
>
> I’ll take a look but in binary files the format are bytes of
> information or blanks (there is no line endings or something
> similar). The drivers Writes and reads bytes and it goes to
> different features using offsets of 4 or 8 bytes depending on the
> version. 4 in this case. Here is the format description for more
> information.
> https://www.miramon.cat/new_note/eng/notes/MiraMon_structured_vectors_file_format.pdf
>
> Taking a look to the log I can see an advice about GDALOpenEx (See
> below).
>
> Thinking about differences between extension POL and the other two
> (PNT and ARC) is that is the main.
>
> poDriver->SetMetadataItem(GDAL_DMD_EXTENSION, "pol");
>
> poDriver->SetMetadataItem(GDAL_DMD_EXTENSIONS, "pol arc pnt");
>
> I look into multiple examples where ds = gdal.OpenEx() is called
> with one, two or three arguments.
>
> So, could it be related with this issue?
>
> Thanks!!!
>
> THE LOG:
>
> /home/runner/work/gdal/gdal/build-ubuntu_22.04/autotest/ogr/ogr_miramon_vector.py:175:
>
>
> 17281
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17282>_
> _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _
> _ _ _ _ _ _
>
> 17282
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17283>
>
>
> 17283
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17284>args
> = ('data/miramon/Polygons/SimplePolygons/SimplePolFile.pol',),
> kwargs = {}
>
> 17284
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17285>
>
>
> 17285
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17286>
> def OpenEx(*args, **kwargs) -> "GDALDatasetShadow *":
>
> 17286
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17287>
> r"""
>
> 17287
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17288>
> OpenEx(char const * utf8_path, unsigned int nOpenFlags=0, char **
> allowed_drivers=None, char ** open_options=None, char **
> sibling_files=None) -> Dataset
>
> 17288
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17289>
>
>
> 17289
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17290>
>
>
> 17290
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17291>
> Open a raster or vector file as a :py:class:`Dataset`.
>
> 17291
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17292>
> See :cpp:func:`GDALOpenEx`.
>
> 17292
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17293>
>
>
> 17293
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17294>
> Parameters
>
> 17294
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17295>
> ----------
>
> 17295
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17296>
> utf8_path : str
>
> 17296
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17297>
> name of the file to open
>
> 17297
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17298>
> flags : int
>
> 17298
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17299>
> Flags controlling how the Dataset is opened. Multiple
> ``gdal.OF_XXX`` flags
>
> 17299
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17300>
> may be combined using the ``|`` operator. See :cpp:func:`GDALOpenEx`.
>
> 17300
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17301>
> allowed_drivers : list, optional
>
> 17301
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17302>
> A list of the names of drivers that may attempt to open the dataset.
>
> 17302
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17303>
> open_options : dict/list, optional
>
> 17303
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17304>
> A dict or list of name=value driver-specific opening options.
>
> 17304
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17305>
> sibling_files: list, optional
>
> 17305
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17306>
> A list of filenames that are auxiliary to the main filename
>
> 17306
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17307>
>
>
> 17307
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17308>
> Returns
>
> 17308
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17309>
> -------
>
> 17309
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17310>
> Dataset, or ``None`` on failure.
>
> 17310
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17311>
>
>
> 17311
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17312>
> See Also
>
> 17312
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17313>
> --------
>
> 17313
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17314>
> :py:func:`Open`
>
> 17314
> <https://github.com/AbelPau/gdal/actions/runs/8254132320/job/22577551385#step:16:17315>
> :py:func:`OpenShared`
>
> Le 12/03/2024 à 17:22, Abel Pau via gdal-dev a écrit :
>
> Hi,
>
> I have in a single test python file with 3 tests inside:
> gdal/autotest/ogr/ogr_miramon_vector.py at master ·
> AbelPau/gdal (github.com)
> <https://github.com/AbelPau/gdal/blob/master/autotest/ogr/ogr_miramon_vector.py#L134>
>
> In some actions the first and second are Ok but the third is
> not. Example of failure:
>
> Some improvements for empty layers · AbelPau/gdal at 90a289c
> (github.com)
> <https://github.com/AbelPau/gdal/actions/runs/8251854865/job/22569933640#step:12:4863>
>
> Here you have the log (return _gdal.OpenEx(*args, **kwargs)
>
> 4912
> <https://github.com/AbelPau/gdal/actions/runs/8251854865/job/22569933640#step:12:4913>23:
> E RuntimeError: Cannot open file %s.) <--- This happen in the
> driver when open fails.
>
> The first two are OK:
>
> gdal/autotest/ogr/ogr_miramon_vector.py at master ·
> AbelPau/gdal (github.com)
> <https://github.com/AbelPau/gdal/blob/master/autotest/ogr/ogr_miramon_vector.py#L48>
>
> gdal/autotest/ogr/ogr_miramon_vector.py at master ·
> AbelPau/gdal (github.com)
> <https://github.com/AbelPau/gdal/blob/master/autotest/ogr/ogr_miramon_vector.py#L99>
>
> But this is not OK:
>
> gdal/autotest/ogr/ogr_miramon_vector.py at master ·
> AbelPau/gdal (github.com)
> <https://github.com/AbelPau/gdal/blob/master/autotest/ogr/ogr_miramon_vector.py#L134>
>
> And the file are all on the correct place (I am sure about that):
>
> For the second one, for example:
>
> gdal/autotest/ogr/data/miramon/Arcs/SimpleArcs at master ·
> AbelPau/gdal (github.com)
> <https://github.com/AbelPau/gdal/tree/master/autotest/ogr/data/miramon/Arcs/SimpleArcs>
>
> And for the third one:
>
> gdal/autotest/ogr/data/miramon/Polygons/SimplePolygons at
> master · AbelPau/gdal (github.com)
> <https://github.com/AbelPau/gdal/tree/master/autotest/ogr/data/miramon/Polygons/SimplePolygons>
>
> On local tests are perfectly OK (see below). So, after some
> days of trying to figure out WHY and what is de difference
> between 2 and 3th test I have to ask you because it must be
> obvious but not to me.
>
> Any idea? Some permissions stuff?? THANKS!
>
> root at f5b8c1fb00ae:/gdal/build/autotest# python3 -m pytest -vv
> -p no:sugar --color=no ogr/ogr_miramon_vector.py
>
> ================================================= test session
> starts ==================================================
>
> platform linux -- Python 3.10.12, pytest-8.1.1, pluggy-1.4.0
> -- /usr/bin/python3
>
> cachedir: .pytest_cache
>
> benchmark: 4.0.0 (defaults: timer=time.perf_counter
> disable_gc=False min_rounds=5 min_time=0.000005 max_time=1.0
> calibration_precision=10 warmup=False warmup_iterations=100000)
>
> GDAL Build Info:
>
> PAM_ENABLED: YES
>
> OGR_ENABLED: YES
>
> CURL_ENABLED: YES
>
> CURL_VERSION: 7.81.0
>
> GEOS_ENABLED: YES
>
> GEOS_VERSION: 3.10.2-CAPI-1.16.0
>
> PROJ_BUILD_VERSION: 8.2.1
>
> PROJ_RUNTIME_VERSION: 8.2.1
>
> COMPILER: GCC 11.4.0
>
> GDAL_DOWNLOAD_TEST_DATA: undefined (tests relying on
> downloaded data may be skipped)
>
> GDAL_RUN_SLOW_TESTS: undefined (tests marked as "slow" will be
> skipped)
>
> rootdir: /gdal/build/autotest
>
> configfile: pytest.ini
>
> plugins: env-1.1.3, benchmark-4.0.0
>
> collected 3 items
>
> ogr/ogr_miramon_vector.py::test_ogr_miramon_simple_point
> PASSED [ 33%]
>
> ogr/ogr_miramon_vector.py::test_ogr_miramon_simple_arc
> PASSED [ 66%]
>
> ogr/ogr_miramon_vector.py::test_ogr_miramon_simple_polygon
> PASSED [100%]
>
> ================================================== 3 passed in
> 0.11s ===================================================
>
> *Abel Pau Garcia*
>
> *GIS developer*
>
>
>
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