mirror of
https://github.com/rbenv/rbenv.git
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f2ac882579
With zsh `setopt warn_create_global` the "shell" command used to cause
a warning message:
scalar parameter RBENV_VERSION_OLD created globally in function rbenv.
By using `typeset -g` specifically for zsh, this warning goes away.
144 lines
3.4 KiB
Bash
Executable file
144 lines
3.4 KiB
Bash
Executable file
#!/usr/bin/env bash
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#
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# Summary: Set or show the shell-specific Ruby version
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#
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# Usage: rbenv shell <version>
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# rbenv shell -
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# rbenv shell --unset
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#
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# Sets a shell-specific Ruby version by setting the `RBENV_VERSION'
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# environment variable in your shell. This version overrides local
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# application-specific versions and the global version.
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#
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# <version> should be a string matching a Ruby version known to rbenv.
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# The special version string `system' will use your default system Ruby.
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# Run `rbenv versions' for a list of available Ruby versions.
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#
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# When `-` is passed instead of the version string, the previously set
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# version will be restored. With `--unset`, the `RBENV_VERSION`
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# environment variable gets unset, restoring the environment to the
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# state before the first `rbenv shell` call.
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set -e
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[ -n "$RBENV_DEBUG" ] && set -x
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# Provide rbenv completions
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if [ "$1" = "--complete" ]; then
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echo --unset
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echo system
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exec rbenv-versions --bare
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fi
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version="$1"
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shell="$(basename "${RBENV_SHELL:-$SHELL}")"
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if [ -z "$version" ]; then
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if [ -z "$RBENV_VERSION" ]; then
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echo "rbenv: no shell-specific version configured" >&2
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exit 1
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else
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echo 'echo "$RBENV_VERSION"'
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exit
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fi
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fi
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if [ "$version" = "--unset" ]; then
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case "$shell" in
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fish )
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echo 'set -gu RBENV_VERSION_OLD "$RBENV_VERSION"'
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echo "set -e RBENV_VERSION"
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;;
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zsh )
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echo "typeset -g RBENV_VERSION_OLD=\"\${RBENV_VERSION-}\""
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echo "unset RBENV_VERSION"
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;;
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* )
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echo 'RBENV_VERSION_OLD="${RBENV_VERSION-}"'
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echo "unset RBENV_VERSION"
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;;
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esac
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exit
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fi
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if [ "$version" = "-" ]; then
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case "$shell" in
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fish )
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cat <<EOS
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if set -q RBENV_VERSION_OLD
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if [ -n "\$RBENV_VERSION_OLD" ]
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set RBENV_VERSION_OLD_ "\$RBENV_VERSION"
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set -gx RBENV_VERSION "\$RBENV_VERSION_OLD"
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set -gu RBENV_VERSION_OLD "\$RBENV_VERSION_OLD_"
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set -e RBENV_VERSION_OLD_
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else
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set -gu RBENV_VERSION_OLD "\$RBENV_VERSION"
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set -e RBENV_VERSION
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end
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else
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echo "rbenv: RBENV_VERSION_OLD is not set" >&2
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false
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end
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EOS
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;;
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zsh )
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cat <<EOS
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if [ -n "\${RBENV_VERSION_OLD+x}" ]; then
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if [ -n "\$RBENV_VERSION_OLD" ]; then
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local RBENV_VERSION_OLD_="\$RBENV_VERSION"
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export RBENV_VERSION="\$RBENV_VERSION_OLD"
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RBENV_VERSION_OLD="\$RBENV_VERSION_OLD_"
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unset RBENV_VERSION_OLD_
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else
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typeset -g RBENV_VERSION_OLD="\$RBENV_VERSION"
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unset RBENV_VERSION
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fi
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else
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echo "rbenv: RBENV_VERSION_OLD is not set" >&2
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false
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fi
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EOS
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;;
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* )
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cat <<EOS
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if [ -n "\${RBENV_VERSION_OLD+x}" ]; then
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if [ -n "\$RBENV_VERSION_OLD" ]; then
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RBENV_VERSION_OLD_="\$RBENV_VERSION"
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export RBENV_VERSION="\$RBENV_VERSION_OLD"
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RBENV_VERSION_OLD="\$RBENV_VERSION_OLD_"
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unset RBENV_VERSION_OLD_
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else
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RBENV_VERSION_OLD="\$RBENV_VERSION"
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unset RBENV_VERSION
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fi
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else
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echo "rbenv: RBENV_VERSION_OLD is not set" >&2
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false
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fi
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EOS
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;;
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esac
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exit
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fi
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# Make sure the specified version is installed.
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if rbenv-prefix "$version" >/dev/null; then
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if [ "$version" != "$RBENV_VERSION" ]; then
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case "$shell" in
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fish )
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echo 'set -gu RBENV_VERSION_OLD "$RBENV_VERSION"'
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echo "set -gx RBENV_VERSION \"$version\""
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;;
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zsh )
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echo "typeset -g RBENV_VERSION_OLD=\"\${RBENV_VERSION-}\""
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echo "export RBENV_VERSION=\"$version\""
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;;
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* )
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echo 'RBENV_VERSION_OLD="${RBENV_VERSION-}"'
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echo "export RBENV_VERSION=\"$version\""
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;;
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esac
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fi
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else
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echo "false"
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exit 1
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fi
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