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![Jehan Bing](/assets/img/avatar_default.png)
By default, a missing filter driver or a failure from the filter driver is not an error, but merely makes the filter operation a no-op pass through. This is useful to massage the content into a shape that is more convenient for the platform, filesystem, and the user to use, and the content filter mechanism is not used to turn something unusable into usable. However, we could also use of the content filtering mechanism and store the content that cannot be directly used in the repository (e.g. a UUID that refers to the true content stored outside git, or an encrypted content) and turn it into a usable form upon checkout (e.g. download the external content, or decrypt the encrypted content). For such a use case, the content cannot be used when filter driver fails, and we need a way to tell Git to abort the whole operation for such a failing or missing filter driver. Add a new "filter.<driver>.required" configuration variable to mark the second use case. When it is set, git will abort the operation when the filter driver does not exist or exits with a non-zero status code. Signed-off-by: Jehan Bing <jehan@orb.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
194 lines
5.1 KiB
Bash
Executable file
194 lines
5.1 KiB
Bash
Executable file
#!/bin/sh
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test_description='blob conversion via gitattributes'
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. ./test-lib.sh
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cat <<EOF >rot13.sh
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#!$SHELL_PATH
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tr \
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'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ' \
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'nopqrstuvwxyzabcdefghijklmNOPQRSTUVWXYZABCDEFGHIJKLM'
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EOF
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chmod +x rot13.sh
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test_expect_success setup '
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git config filter.rot13.smudge ./rot13.sh &&
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git config filter.rot13.clean ./rot13.sh &&
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{
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echo "*.t filter=rot13"
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echo "*.i ident"
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} >.gitattributes &&
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{
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echo a b c d e f g h i j k l m
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echo n o p q r s t u v w x y z
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echo '\''$Id$'\''
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} >test &&
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cat test >test.t &&
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cat test >test.o &&
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cat test >test.i &&
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git add test test.t test.i &&
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rm -f test test.t test.i &&
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git checkout -- test test.t test.i
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'
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script='s/^\$Id: \([0-9a-f]*\) \$/\1/p'
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test_expect_success check '
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cmp test.o test &&
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cmp test.o test.t &&
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# ident should be stripped in the repository
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git diff --raw --exit-code :test :test.i &&
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id=$(git rev-parse --verify :test) &&
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embedded=$(sed -ne "$script" test.i) &&
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test "z$id" = "z$embedded" &&
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git cat-file blob :test.t > test.r &&
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./rot13.sh < test.o > test.t &&
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cmp test.r test.t
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'
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# If an expanded ident ever gets into the repository, we want to make sure that
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# it is collapsed before being expanded again on checkout
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test_expect_success expanded_in_repo '
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{
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echo "File with expanded keywords"
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echo "\$Id\$"
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echo "\$Id:\$"
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echo "\$Id: 0000000000000000000000000000000000000000 \$"
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echo "\$Id: NoSpaceAtEnd\$"
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echo "\$Id:NoSpaceAtFront \$"
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echo "\$Id:NoSpaceAtEitherEnd\$"
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echo "\$Id: NoTerminatingSymbol"
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echo "\$Id: Foreign Commit With Spaces \$"
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} >expanded-keywords.0 &&
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{
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cat expanded-keywords.0 &&
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printf "\$Id: NoTerminatingSymbolAtEOF"
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} >expanded-keywords &&
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cat expanded-keywords >expanded-keywords-crlf &&
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git add expanded-keywords expanded-keywords-crlf &&
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git commit -m "File with keywords expanded" &&
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id=$(git rev-parse --verify :expanded-keywords) &&
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{
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echo "File with expanded keywords"
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echo "\$Id: $id \$"
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echo "\$Id: $id \$"
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echo "\$Id: $id \$"
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echo "\$Id: $id \$"
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echo "\$Id: $id \$"
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echo "\$Id: $id \$"
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echo "\$Id: NoTerminatingSymbol"
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echo "\$Id: Foreign Commit With Spaces \$"
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} >expected-output.0 &&
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{
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cat expected-output.0 &&
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printf "\$Id: NoTerminatingSymbolAtEOF"
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} >expected-output &&
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{
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append_cr <expected-output.0 &&
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printf "\$Id: NoTerminatingSymbolAtEOF"
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} >expected-output-crlf &&
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{
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echo "expanded-keywords ident"
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echo "expanded-keywords-crlf ident text eol=crlf"
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} >>.gitattributes &&
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rm -f expanded-keywords expanded-keywords-crlf &&
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git checkout -- expanded-keywords &&
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test_cmp expanded-keywords expected-output &&
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git checkout -- expanded-keywords-crlf &&
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test_cmp expanded-keywords-crlf expected-output-crlf
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'
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# The use of %f in a filter definition is expanded to the path to
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# the filename being smudged or cleaned. It must be shell escaped.
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# First, set up some interesting file names and pet them in
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# .gitattributes.
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test_expect_success 'filter shell-escaped filenames' '
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cat >argc.sh <<-EOF &&
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#!$SHELL_PATH
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cat >/dev/null
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echo argc: \$# "\$@"
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EOF
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normal=name-no-magic &&
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special="name with '\''sq'\'' and \$x" &&
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echo some test text >"$normal" &&
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echo some test text >"$special" &&
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git add "$normal" "$special" &&
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git commit -q -m "add files" &&
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echo "name* filter=argc" >.gitattributes &&
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# delete the files and check them out again, using a smudge filter
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# that will count the args and echo the command-line back to us
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git config filter.argc.smudge "sh ./argc.sh %f" &&
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rm "$normal" "$special" &&
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git checkout -- "$normal" "$special" &&
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# make sure argc.sh counted the right number of args
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echo "argc: 1 $normal" >expect &&
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test_cmp expect "$normal" &&
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echo "argc: 1 $special" >expect &&
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test_cmp expect "$special" &&
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# do the same thing, but with more args in the filter expression
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git config filter.argc.smudge "sh ./argc.sh %f --my-extra-arg" &&
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rm "$normal" "$special" &&
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git checkout -- "$normal" "$special" &&
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# make sure argc.sh counted the right number of args
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echo "argc: 2 $normal --my-extra-arg" >expect &&
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test_cmp expect "$normal" &&
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echo "argc: 2 $special --my-extra-arg" >expect &&
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test_cmp expect "$special" &&
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:
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'
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test_expect_success 'required filter success' '
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git config filter.required.smudge cat &&
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git config filter.required.clean cat &&
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git config filter.required.required true &&
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echo "*.r filter=required" >.gitattributes &&
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echo test >test.r &&
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git add test.r &&
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rm -f test.r &&
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git checkout -- test.r
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'
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test_expect_success 'required filter smudge failure' '
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git config filter.failsmudge.smudge false &&
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git config filter.failsmudge.clean cat &&
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git config filter.failsmudge.required true &&
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echo "*.fs filter=failsmudge" >.gitattributes &&
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echo test >test.fs &&
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git add test.fs &&
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rm -f test.fs &&
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test_must_fail git checkout -- test.fs
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'
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test_expect_success 'required filter clean failure' '
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git config filter.failclean.smudge cat &&
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git config filter.failclean.clean false &&
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git config filter.failclean.required true &&
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echo "*.fc filter=failclean" >.gitattributes &&
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echo test >test.fc &&
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test_must_fail git add test.fc
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'
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test_done
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