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81bb14e181
readlink comes from GNU coreutils. On systems without it, rbenv used to spin out of control when it didn't have readlink or greadlink available because it would re-exec the frontend script over and over instead of the worker script in libexec. Fixes #389
94 lines
1.7 KiB
Bash
Executable file
94 lines
1.7 KiB
Bash
Executable file
#!/usr/bin/env bash
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set -e
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export -n CDPATH
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if [ "$1" = "--debug" ]; then
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export RBENV_DEBUG=1
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shift
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fi
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if [ -n "$RBENV_DEBUG" ]; then
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export PS4='+ [${BASH_SOURCE##*/}:${LINENO}] '
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set -x
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fi
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READLINK=$(type -p greadlink readlink | head -1)
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if [ -z "$READLINK" ]; then
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echo "rbenv: cannot find readlink - are you missing GNU coreutils?" >&2
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exit 1
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fi
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resolve_link() {
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$READLINK "$1"
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}
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abs_dirname() {
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local cwd="$(pwd)"
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local path="$1"
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while [ -n "$path" ]; do
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cd "${path%/*}"
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local name="${path##*/}"
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path="$(resolve_link "$name" || true)"
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done
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pwd
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cd "$cwd"
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}
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if [ -z "${RBENV_ROOT}" ]; then
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RBENV_ROOT="${HOME}/.rbenv"
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else
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RBENV_ROOT="${RBENV_ROOT%/}"
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fi
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export RBENV_ROOT
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if [ -z "${RBENV_DIR}" ]; then
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RBENV_DIR="$(pwd)"
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else
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cd "$RBENV_DIR" 2>/dev/null || {
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echo "rbenv: cannot change working directory to \`$RBENV_DIR'"
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exit 1
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} >&2
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RBENV_DIR="$(pwd)"
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cd "$OLDPWD"
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fi
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export RBENV_DIR
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shopt -s nullglob
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bin_path="$(abs_dirname "$0")"
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for plugin_bin in "${RBENV_ROOT}/plugins/"*/bin; do
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bin_path="${bin_path}:${plugin_bin}"
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done
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export PATH="${bin_path}:${PATH}"
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hook_path="${RBENV_HOOK_PATH}:${RBENV_ROOT}/rbenv.d:/usr/local/etc/rbenv.d:/etc/rbenv.d:/usr/lib/rbenv/hooks"
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for plugin_hook in "${RBENV_ROOT}/plugins/"*/etc/rbenv.d; do
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hook_path="${hook_path}:${plugin_hook}"
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done
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export RBENV_HOOK_PATH="$hook_path"
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shopt -u nullglob
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command="$1"
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case "$command" in
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"" | "-h" | "--help" )
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echo -e "$(rbenv---version)\n$(rbenv-help)" >&2
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;;
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"-v" )
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exec rbenv---version
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;;
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* )
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command_path="$(command -v "rbenv-$command" || true)"
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if [ -z "$command_path" ]; then
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echo "rbenv: no such command \`$command'" >&2
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exit 1
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fi
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shift 1
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exec "$command_path" "$@"
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;;
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esac
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