mirror of
https://github.com/pyenv/pyenv.git
synced 2024-12-12 10:03:54 -05:00
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
|
|
# Usage: rbenv version-file-read <file>
|
|
set -e
|
|
[ -n "$RBENV_DEBUG" ] && set -x
|
|
|
|
VERSION_FILE="$1"
|
|
|
|
if [ -s "$VERSION_FILE" ]; then
|
|
# Read the first word from the specified version file. Avoid reading it whole.
|
|
IFS="${IFS}"$'\r'
|
|
read -n 1024 -d "" -r version _ <"$VERSION_FILE" || :
|
|
|
|
if [ "$version" = ".." ] || [[ $version == */* ]]; then
|
|
echo "rbenv: invalid version in \`$VERSION_FILE'" >&2
|
|
elif [ -n "$version" ]; then
|
|
echo "$version"
|
|
exit
|
|
fi
|
|
fi
|
|
|
|
exit 1
|