ec50e407be
So far, we checked that the tar present on the host was at most tar
1.29, because tar 1.30 changed the way it generates archives.
Having a maximum tar version requirement meant that we would eventually
always have to build our own host-tar, as distributions are updating
the version they use.
But now, we have found a way to generate reproducible archives starting
with tar 1.27 onward, so we no longer need the check for a maximum tar
version, so we can drop that requirement.
Note: this is semantically a revert of b8fa273d50 (check-host-tar.sh:
blacklist tar 1.30+), but keeping the new, mostly-linear code-path.
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Cc: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Cc: Vincent Fazio <vfazio@xes-inc.com>
Reviewed-by: Arnout Vandecappelle (Essensium/Mind) <arnout@mind.be>
Reviewed-by: Vincent Fazio <vfazio@xes-inc.com>
48 lines
1.1 KiB
Bash
Executable File
48 lines
1.1 KiB
Bash
Executable File
#!/bin/sh
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candidate="$1"
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tar=`which $candidate`
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if [ ! -x "$tar" ]; then
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tar=`which tar`
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if [ ! -x "$tar" ]; then
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# echo nothing: no suitable tar found
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exit 1
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fi
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fi
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# Output of 'tar --version' examples:
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# tar (GNU tar) 1.15.1
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# tar (GNU tar) 1.25
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# bsdtar 2.8.3 - libarchive 2.8.3
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version=`$tar --version | head -n 1 | sed 's/^.*\s\([0-9]\+\.\S\+\).*$/\1/'`
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major=`echo "$version" | cut -d. -f1`
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minor=`echo "$version" | cut -d. -f2`
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bugfix=`echo "$version" | cut -d. -f3`
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version_bsd=`$tar --version | grep 'bsdtar'`
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# BSD tar does not have all the command-line options
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if [ -n "${version_bsd}" ] ; then
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# echo nothing: no suitable tar found
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exit 1
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fi
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# Minimal version = 1.27 (previous versions do not correctly unpack archives
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# containing hard-links if the --strip-components option is used or create
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# different gnu long link headers for path elements > 100 characters).
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major_min=1
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minor_min=27
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if [ $major -lt $major_min ]; then
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# echo nothing: no suitable tar found
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exit 1
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fi
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if [ $major -eq $major_min -a $minor -lt $minor_min ]; then
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# echo nothing: no suitable tar found
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exit 1
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fi
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# valid
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echo $tar
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