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authorLibravatar Lars Schneider <larsxschneider@gmail.com>2016-01-29 09:21:37 +0100
committerLibravatar Junio C Hamano <gitster@pobox.com>2016-01-29 11:04:27 -0800
commit1a8630dc3b1cc6f1361a4e5d94630133c24c97d9 (patch)
tree20f6d464fc2c5dc3144f95ceab54684377bd5469 /t/t4018/README
parentMerge branch 'maint' of git://github.com/git-l10n/git-po into maint (diff)
downloadtgif-1a8630dc3b1cc6f1361a4e5d94630133c24c97d9.tar.xz
convert: treat an empty string for clean/smudge filters as "cat"
Once a lower-priority configuration file defines a clean or smudge filter, there is no convenient way to override it to produce as-is output. Even though the configuration mechanism implements "the last one wins" semantics, you cannot set them to an empty string and expect them to work, as apply_filter() would try to run the empty string as an external command and fail. The conversion is not done, but the function would still report a failure to convert. Even though resetting the variable to "cat" (i.e. pass the data back as-is and report success) is an obvious and a viable way to solve this, it is wasteful to spawn an external process just as a workaround. Instead, teach apply_filter() to treat an empty string as a no-op filter that always returns successfully its input as-is without conversion. Signed-off-by: Lars Schneider <larsxschneider@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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