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Update required bash version to 4.2 (#79)

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We use features that were introduced in bash 4.2, specifically negative array
indexing.  Since EL8 comes stock with bash 4.4 this is not an issue but just in
case someone has done somethign stupid we update our version check to make sure
that at least 4.2 is being run.
This commit is contained in:
Peter Ajamian 2021-07-16 16:28:33 +12:00 committed by GitHub
parent 49d75e9788
commit 64c74d621b
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1 changed files with 4 additions and 4 deletions
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migrate2rocky/migrate2rocky.sh
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@ -34,13 +34,13 @@
# These checks need to be right at the top because we start with bash-isms right # These checks need to be right at the top because we start with bash-isms right
# away in this script. # away in this script.
if [ -n "$POSIXLY_CORRECT" ] || [ -z "$BASH_VERSION" ]; then if [ -n "$POSIXLY_CORRECT" ] || [ -z "$BASH_VERSION" ]; then
printf '%s\n' "bash >= 4.0 is required for this script." >&2 printf '%s\n' "bash >= 4.2 is required for this script." >&2
exit 1 exit 1
fi fi
# We need bash version >= 4 for associative arrays. # We need bash version >= 4.2 for associative arrays and other features.
if (( BASH_VERSINFO < 4 )); then if (( BASH_VERSINFO[0]*100 + BASH_VERSINFO[1] < 402 )); then
printf '%s\n' "bash >= 4.0 is required for this script." >&2 printf '%s\n' "bash >= 4.2 is required for this script." >&2
exit 1 exit 1
fi fi