33 lines
1.9 KiB
Diff
33 lines
1.9 KiB
Diff
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commit 4f03a10d4866efc9b6920a3878e6397d170742f9
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Author: Johannes Meixner <jsmeix@suse.com>
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Date: Thu Jul 20 15:11:52 2023 +0200
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Merge pull request #3027 from rmetrich/shrinking_file
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In build/GNU/Linux/100_copy_as_is.sh
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ensure to really get all COPY_AS_IS files copied by using
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'tar ... -i' when extracting to avoid a false regular exit of 'tar'
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in particular when padding zeroes get added when a file being read shrinks
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because for 'tar' (without '-i') two consecutive 512-blocks of zeroes mean EOF,
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cf. https://github.com/rear/rear/pull/3027
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diff --git a/usr/share/rear/build/GNU/Linux/100_copy_as_is.sh b/usr/share/rear/build/GNU/Linux/100_copy_as_is.sh
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index ec55f331..0e402b01 100644
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--- a/usr/share/rear/build/GNU/Linux/100_copy_as_is.sh
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+++ b/usr/share/rear/build/GNU/Linux/100_copy_as_is.sh
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@@ -92,9 +92,13 @@ done >$copy_as_is_exclude_file
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# COPY_AS_IS+=( /path/to/directory/* )
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# which are used in our scripts and by users in their etc/rear/local.conf
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# cf. https://github.com/rear/rear/pull/2405#issuecomment-633512932
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+# Using '-i' when extracting is necessary to avoid a false regular exit of 'tar'
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+# in particular when padding zeroes get added when a file being read shrinks
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+# because for 'tar' (without '-i') two consecutive 512-blocks of zeroes mean EOF,
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+# cf. https://github.com/rear/rear/pull/3027
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# FIXME: The following code fails if file names contain characters from IFS (e.g. blanks),
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# cf. https://github.com/rear/rear/issues/1372
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-if ! tar -v -X $copy_as_is_exclude_file -P -C / -c ${COPY_AS_IS[*]} 2>$copy_as_is_filelist_file | tar $v -C $ROOTFS_DIR/ -x 1>/dev/null ; then
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+if ! tar -v -X $copy_as_is_exclude_file -P -C / -c ${COPY_AS_IS[*]} 2>$copy_as_is_filelist_file | tar $v -C $ROOTFS_DIR/ -x -i 1>/dev/null ; then
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Error "Failed to copy files and directories in COPY_AS_IS minus COPY_AS_IS_EXCLUDE"
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fi
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Log "Finished copying files and directories in COPY_AS_IS minus COPY_AS_IS_EXCLUDE"
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