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Implement RFC 104: Adding a "gdal" front-end command line interface
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/****************************************************************************** | ||
* | ||
* Project: GDAL | ||
* Purpose: CLI front-end | ||
* Author: Even Rouault <even dot rouault at spatialys.com> | ||
* | ||
****************************************************************************** | ||
* Copyright (c) 2024, Even Rouault <even dot rouault at spatialys.com> | ||
* | ||
* SPDX-License-Identifier: MIT | ||
****************************************************************************/ | ||
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#include "gdalalgorithm.h" | ||
#include "commonutils.h" | ||
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#include "gdal.h" | ||
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#include <cassert> | ||
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/************************************************************************/ | ||
/* main() */ | ||
/************************************************************************/ | ||
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MAIN_START(argc, argv) | ||
{ | ||
EarlySetConfigOptions(argc, argv); | ||
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/* -------------------------------------------------------------------- */ | ||
/* Register standard GDAL drivers, and process generic GDAL */ | ||
/* command options. */ | ||
/* -------------------------------------------------------------------- */ | ||
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GDALAllRegister(); | ||
argc = GDALGeneralCmdLineProcessor(argc, &argv, 0); | ||
if (argc < 1) | ||
return (-argc); | ||
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auto alg = GDALGlobalAlgorithmRegistry::GetSingleton().Instantiate( | ||
GDALGlobalAlgorithmRegistry::ROOT_ALG_NAME); | ||
assert(alg); | ||
alg->SetCallPath(std::vector<std::string>{argv[0]}); | ||
std::vector<std::string> args; | ||
for (int i = 1; i < argc; ++i) | ||
args.push_back(argv[i]); | ||
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if (!alg->ParseCommandLineArguments(args)) | ||
{ | ||
fprintf(stderr, "%s", alg->GetUsageForCLI(true).c_str()); | ||
CSLDestroy(argv); | ||
return 1; | ||
} | ||
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{ | ||
const auto stdoutArg = alg->GetActualAlgorithm().GetArg("stdout"); | ||
if (stdoutArg && stdoutArg->GetType() == GAAT_BOOLEAN) | ||
stdoutArg->Set(true); | ||
} | ||
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GDALProgressFunc pfnProgress = | ||
alg->IsProgressBarRequested() ? GDALTermProgress : nullptr; | ||
void *pProgressData = nullptr; | ||
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int ret = 0; | ||
if (alg->Run(pfnProgress, pProgressData) && alg->Finalize()) | ||
{ | ||
const auto outputArg = | ||
alg->GetActualAlgorithm().GetArg("output-string"); | ||
if (outputArg && outputArg->GetType() == GAAT_STRING && | ||
outputArg->IsOutput()) | ||
{ | ||
printf("%s", outputArg->Get<std::string>().c_str()); | ||
} | ||
} | ||
else | ||
{ | ||
ret = 1; | ||
} | ||
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CSLDestroy(argv); | ||
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return ret; | ||
} | ||
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MAIN_END |
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/****************************************************************************** | ||
* | ||
* Project: GDAL | ||
* Purpose: gdal "convert" subcommand | ||
* Author: Even Rouault <even dot rouault at spatialys.com> | ||
* | ||
****************************************************************************** | ||
* Copyright (c) 2024, Even Rouault <even dot rouault at spatialys.com> | ||
* | ||
* SPDX-License-Identifier: MIT | ||
****************************************************************************/ | ||
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#include "cpl_error.h" | ||
#include "gdalalgorithm.h" | ||
#include "gdalalg_raster_convert.h" | ||
#include "gdalalg_vector_convert.h" | ||
#include "gdalalg_dispatcher.h" | ||
#include "gdal_priv.h" | ||
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/************************************************************************/ | ||
/* GDALConvertAlgorithm */ | ||
/************************************************************************/ | ||
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class GDALConvertAlgorithm | ||
: public GDALDispatcherAlgorithm<GDALRasterConvertAlgorithm, | ||
GDALVectorConvertAlgorithm> | ||
{ | ||
public: | ||
static constexpr const char *NAME = "convert"; | ||
static constexpr const char *DESCRIPTION = | ||
"Convert a dataset (shortcut for 'gdal raster convert' or " | ||
"'gdal vector convert')."; | ||
static constexpr const char *HELP_URL = ""; // TODO | ||
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static std::vector<std::string> GetAliases() | ||
{ | ||
return {}; | ||
} | ||
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GDALConvertAlgorithm() | ||
: GDALDispatcherAlgorithm(NAME, DESCRIPTION, HELP_URL) | ||
{ | ||
// only for the help message | ||
AddProgressArg(); | ||
AddOutputFormatArg(&m_format); | ||
AddInputDatasetArg(&m_inputDataset); | ||
AddOutputDatasetArg(&m_outputDataset); | ||
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m_longDescription = "For all options, run 'gdal raster convert --help' " | ||
"or 'gdal vector convert --help'"; | ||
} | ||
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private: | ||
std::string m_format{}; | ||
GDALArgDatasetValue m_inputDataset{}; | ||
GDALArgDatasetValue m_outputDataset{}; | ||
}; | ||
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GDAL_STATIC_REGISTER_ALG(GDALConvertAlgorithm); |
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