1. docker
  2. Commit 787ff55283067ef3d8da3238e65ca204bc63b3f9
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mkimage-arch: use hash to check if command is available

Apart from having more predictable return codes on various operating
systems, it additionally caches the path to application.

Docker-DCO-1.1-Signed-off-by: Bartłomiej Piotrowski <b@bpiotrowski.pl> (github: Barthalion)

Bartłomiej Piotrowski authored on 2014/01/06 21:36:04
Showing 1 changed files
contrib/mkimage-arch.sh
History View file @ 787ff55
... ... 
@@ -4,14 +4,12 @@
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 # requires root
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 set -e
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-PACSTRAP=$(hash pacstrap &>/dev/null)
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-[ "$PACSTRAP" ] || {
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+hash pacstrap &>/dev/null || {
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     echo "Could not find pacstrap. Run pacman -S arch-install-scripts"
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     exit 1
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 }
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-EXPECT=$(hash expect &>/dev/null)
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-[[ "$EXPECT" ]] || {
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+hash expect &>/dev/null || {
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     echo "Could not find expect. Run pacman -S expect"
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     exit 1
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 }