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show-utils.sh: modify script to be compatible with BSD OS

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- Use /usr/bin/env bash instead of /bin/sh to define OSTYPE
  - Use GNU realpath on BSD OS (FreeBSD and OpenBSD)

Signed-off-by: Laurent Cheylus <foxy@free.fr>
This commit is contained in:
Laurent Cheylus 2024-01-01 22:21:10 +01:00
parent 7aca1f932a
commit d450d5a463
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1 changed files with 14 additions and 4 deletions
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18
util/show-utils.sh
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@ -1,13 +1,23 @@
#!/bin/sh
#!/usr/bin/env bash
# spell-checker:ignore (utils) cksum coreutils dircolors hashsum mkdir mktemp printenv printf readlink realpath rmdir shuf tsort unexpand
# spell-checker:ignore (shell) OSTYPE
# spell-checker:ignore (utils) cksum coreutils dircolors hashsum mkdir mktemp printenv printf readlink realpath grealpath rmdir shuf tsort unexpand
# spell-checker:ignore (jq) deps startswith
# Use GNU version for realpath on *BSD
case "$OSTYPE" in
*bsd*)
REALPATH="grealpath"
;;
*)
REALPATH="realpath"
;;
esac
ME="${0}"
ME_dir="$(dirname -- "${ME}")"
ME_parent_dir="$(dirname -- "${ME_dir}")"
# NOTE: On FreeBSD, `-mP` arguments are not available.
ME_parent_dir_abs="$(realpath -mP -- "${ME_parent_dir}" || realpath -- "${ME_parent_dir}")"
ME_parent_dir_abs="$("${REALPATH}" -mP -- "${ME_parent_dir}" || "${REALPATH}" -- "${ME_parent_dir}")"
# refs: <https://forge.rust-lang.org/release/platform-support.html> , <https://docs.rs/platforms/0.2.1/platforms/platform/tier1/index.html>