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b39d4291be
Avoid a subshell and external `cut` invocation, as well as a throwaway intermediate array.
21 lines
501 B
Bash
Executable file
21 lines
501 B
Bash
Executable file
#!/usr/bin/env bash
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# Usage: rbenv version-file-read <file>
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set -e
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[ -n "$RBENV_DEBUG" ] && set -x
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VERSION_FILE="$1"
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if [ -s "$VERSION_FILE" ]; then
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# Read the first word from the specified version file. Avoid reading it whole.
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IFS="${IFS}"$'\r'
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read -n 1024 -d "" -r version _ <"$VERSION_FILE" || :
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if [ "$version" = ".." ] || [[ $version == */* ]]; then
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echo "rbenv: invalid version in \`$VERSION_FILE'" >&2
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elif [ -n "$version" ]; then
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echo "$version"
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exit
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fi
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fi
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exit 1
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