File: rbenv-version-file-read

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rbenv 1.1.2-2
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#!/usr/bin/env bash
# Usage: rbenv version-file-read <file>
set -e
[ -n "$RBENV_DEBUG" ] && set -x

VERSION_FILE="$1"

if [ -e "$VERSION_FILE" ]; then
  # Read the first word from the specified version file. Avoid reading it whole.
  IFS="${IFS}"$'\r'
  words=( $(cut -b 1-1024 "$VERSION_FILE") )
  version="${words[0]}"

  if [ -n "$version" ]; then
    echo "$version"
    exit
  fi
fi

exit 1