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258e4413b1
Expose a `version-name` hook. It is invoked *after* the traditional `RBENV_VERSION` lookup. Which means hook scripts can interrogate `$RBENV_VERSION_FILE` and/or `$RBENV_VERSION` (or use the executables). The hooks are then run, giving plugins a chance to alter `RBENV_VERSION`. Once the hooks have run, we now have (in `$RBENV_VERSION`) the actual version we want to use (or it's empty which defaults to `system` per normal). Lastly, the same logic remains for checking if the version exists, or trimming the `ruby-` prefix. Prime example: the ruby-bundler-ruby-version plugin can select a ruby by using the `ruby` directive from the `Gemfile` if a local `.ruby-version` doesn't exist.
35 lines
803 B
Bash
Executable file
35 lines
803 B
Bash
Executable file
#!/usr/bin/env bash
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# Summary: Show the current Ruby version
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set -e
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[ -n "$RBENV_DEBUG" ] && set -x
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if [ -z "$RBENV_VERSION" ]; then
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RBENV_VERSION_FILE="$(rbenv-version-file)"
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RBENV_VERSION="$(rbenv-version-file-read "$RBENV_VERSION_FILE" || true)"
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fi
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OLDIFS="$IFS"
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IFS=$'\n' scripts=(`rbenv-hooks version-name`)
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IFS="$OLDIFS"
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for script in "${scripts[@]}"; do
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source "$script"
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done
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if [ -z "$RBENV_VERSION" ] || [ "$RBENV_VERSION" = "system" ]; then
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echo "system"
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exit
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fi
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version_exists() {
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local version="$1"
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[ -d "${RBENV_ROOT}/versions/${version}" ]
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}
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if version_exists "$RBENV_VERSION"; then
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echo "$RBENV_VERSION"
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elif version_exists "${RBENV_VERSION#ruby-}"; then
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echo "${RBENV_VERSION#ruby-}"
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else
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echo "rbenv: version \`$RBENV_VERSION' is not installed" >&2
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exit 1
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fi
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