Re: [PATCH v3 8/8] clean/smudge: allow clean filters to process extremely large files
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From: Junio C Hamano <hidden>
Date: 2021-10-29 23:17:31
"Matt Cooper via GitGitGadget" [off-list ref] writes:
quoted hunk
+# This clean filter writes down the size of input it receives. By checking against +# the actual size, we ensure that cleaning doesn't mangle large files on 64-bit Windows. +test_expect_success EXPENSIVE,SIZE_T_IS_64BIT,!LONG_IS_64BIT \ + 'files over 4GB convert on input' ' + test-tool genzeros $((5*1024*1024*1024)) >big && + test_config filter.checklarge.clean "wc -c >big.size" && + echo "big filter=checklarge" >.gitattributes && + git add big && + test $(test_file_size big) -eq $(cat big.size) +'
I would have expected that the clean filter to be sending the count to its standard output (to be hashed and made into a blob object), and the test wuld be doing "git cat-file blob :big" to read the contents of the raw blob, bypassing the filter system. But we are testing with only a single path anyway, use of this single extra file is OK. Looking good.