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copy-firmware: fail gracefully if moreutils parallel is installed

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The copy-firmware.sh script can use the "parallel" command to
parallelize some operations, but it needs the GNU version of
parallel.  There is another, simpler version of parallel that is part
of the moreutils package, but that version confuses the
has_gnu_parallel() function.  So first test to make sure that
the --version parameter is even recognized before trying to use it.

If in the future, moreutils parallel adds support for --version, this
script should still work because that version should never report
"GNU parallel".

Signed-off-by: Timur Tabi <ttabi@nvidia.com>
This commit is contained in:
Timur Tabi 2025-03-17 14:16:06 -05:00 • committed by Kernel Firmware Robot
parent 6a94efbe2a
commit 1d704ac5f1
1 changed files with 8 additions and 0 deletions
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copy-firmware.sh
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@ -22,6 +22,14 @@ warn() {
has_gnu_parallel() {
if command -v parallel > /dev/null; then
# The moreutils package comes with a simpler version of "parallel"
# that does not support the --version or -a options. Check for
# that first. In some distros, installing the "parallel" package
# will replace the moreutils version with the GNU version.
parallel --version >/dev/null 2>&1
if [ $? -ne 0 ]; then
return 1
fi
if parallel --version | grep -Fqi 'gnu parallel'; then
return 0
fi