Remove bash dep from init scripts #98781
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Tagging subscribers to this area: @dotnet/runtime-infrastructure Issue Detailsupstream changes dotnet/arcade#14500
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| illumos_*) | ||
| nonPortableRid=openindiana-"$targetArch" | ||
| ;; | ||
| __smartos_major_version=$(echo "$__uname_version" | cut -c9-10) |
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Is this a typo? Or is the range also 9-10?
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Bash syntax was 'skip 8 chars and select next two', new syntax is 'cut/select characters 9 and 10'.
| VERSION_ID="${VERSION_ID%.*}" | ||
| . "${rootfsDir}/etc/os-release" | ||
| if [ "${ID}" = "rhel" ] || [ "${ID}" = "rocky" ] || [ "${ID}" = "alpine" ]; then | ||
| VERSION_ID="${VERSION_ID%.*}" # Remove the last version digit for these distros |
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We stopped using it this trimming type of expansion for __solaris_major_version but not here. Is there difference in shell supports?
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Ah, ChatGPT thinks this is the way to go, and shellcheck doesn't complain.
Bourne Shell:
But good eye! I'll make it consistent later today.
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ChatGPT's reply:
If your target environments are systems that are 15 years old or newer, you are generally in a safe zone regarding the support for ${variable%pattern} parameter expansion. This feature is part of the POSIX standard, and most Unix-like systems from the last 15 years would have /bin/sh linked to a shell that supports POSIX parameter expansion
so advanced ops like substring extraction ${string:position:length} are bash-specific. So I think we can safely use that parameter expansion syntax for now.
upstream changes dotnet/arcade#14500