hipsparse: support caching downloaded test matrices#7890
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This patch allows test matrix archive files to be supplied from an optional `HIPSPARSE_TEST_DATA_CACHE_DIR`. If `HIPSPARSE_TEST_DATA_CACHE_DIR` is passed, test matrix archives from the directory is used if their MD5 are as expected and a copy of the downloaded file is saved there. The motivation is to speed up building hipSPARSE for external contributors who might not know to set up an HTTP mirror via `HIPSPARSE_TEST_MIRROR` but still build hipSPARSE repeatedly.
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This patch allows test matrix archive files to be supplied from an optional
HIPSPARSE_TEST_DATA_CACHE_DIR.If
HIPSPARSE_TEST_DATA_CACHE_DIRis passed,test matrix archives from the directory is used if their MD5 are as expected and a copy of the downloaded file is saved there.
The motivation is to speed up building hipSPARSE for external contributors who might not know to set up an HTTP mirror via
HIPSPARSE_TEST_MIRRORbut still build hipSPARSE repeatedly.The current code duplicates the test matrices and MD5 sums in two files that only differs by the path of the
mtx2csr. This patch also fixes that.