pyenv/libexec/rbenv-version-name

#!/usr/bin/env bash
# Summary: Show the current Ruby version
set -e
[ -n "$RBENV_DEBUG" ] && set -x

if [ -z "$RBENV_VERSION" ]; then
  RBENV_VERSION_FILE="$(rbenv-version-file)"
  RBENV_VERSION="$(rbenv-version-file-read "$RBENV_VERSION_FILE" || true)"
fi

IFS=$'\n' read -d '' -r -a scripts <<<"$(rbenv-hooks version-name)" || true
for script in "${scripts[@]}"; do
  # shellcheck disable=SC1090
  source "$script"
done

if [ -z "$RBENV_VERSION" ] || [ "$RBENV_VERSION" = "system" ]; then
  echo "system"
  exit
fi

version_exists() {
  local version="$1"
  [ -d "${RBENV_ROOT}/versions/${version}" ]
}

if version_exists "$RBENV_VERSION"; then
  echo "$RBENV_VERSION"
elif version_exists "${RBENV_VERSION#ruby-}"; then
  echo "${RBENV_VERSION#ruby-}"
else
  echo "rbenv: version \`$RBENV_VERSION' is not installed (set by $(rbenv-version-origin))" >&2
  exit 1
fi
Fix argument that cannot be sent to bash via env /usr/bin/env seems to have problems with arguments to bash on some platforms. To bypass this, use set -e instead. 2011-08-12 05:33:45 -04:00			`#!/usr/bin/env bash`
new-style documentation for most commands 2012-12-29 17:34:53 -05:00			`# Summary: Show the current Ruby version`
Fix argument that cannot be sent to bash via env /usr/bin/env seems to have problems with arguments to bash on some platforms. To bypass this, use set -e instead. 2011-08-12 05:33:45 -04:00			`set -e`
Set RBENV_DEBUG=1 to see what's going on under the hood 2011-09-12 11:11:59 -04:00			`[ -n "$RBENV_DEBUG" ] && set -x`
Split rbenv-version into rbenv-version-name and rbenv-version-origin, update versions, prefix, and which appropriately 2011-08-09 16:41:35 -04:00
			`if [ -z "$RBENV_VERSION" ]; then`
Extract rbenv-version-file{,-read,-write} 2011-08-18 15:11:40 -04:00			`RBENV_VERSION_FILE="$(rbenv-version-file)"`
			`RBENV_VERSION="$(rbenv-version-file-read "$RBENV_VERSION_FILE" \|\| true)"`
Split rbenv-version into rbenv-version-name and rbenv-version-origin, update versions, prefix, and which appropriately 2011-08-09 16:41:35 -04:00			`fi`

Use `read -a` to split output into an array (#1450) 2022-10-09 08:48:13 -04:00			`IFS=$'\n' read -d '' -r -a scripts <<<"$(rbenv-hooks version-name)" \|\| true`
create hook: version-name 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 `$RBENV_VERSION`) the actual version we want to use (or it's empty which defaults to `system` per normal). Lastly, the same logic remains for checking if the version exists, or trimming the `ruby-` prefix. Prime example: the ruby-bundler-ruby-version plugin can select a ruby by using the `ruby` directive from the `Gemfile` if a local `.ruby-version` doesn't exist. 2015-05-27 23:10:39 -04:00			`for script in "${scripts[@]}"; do`
Use `read -a` to split output into an array (#1450) 2022-10-09 08:48:13 -04:00			`# shellcheck disable=SC1090`
create hook: version-name 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 `$RBENV_VERSION`) the actual version we want to use (or it's empty which defaults to `system` per normal). Lastly, the same logic remains for checking if the version exists, or trimming the `ruby-` prefix. Prime example: the ruby-bundler-ruby-version plugin can select a ruby by using the `ruby` directive from the `Gemfile` if a local `.ruby-version` doesn't exist. 2015-05-27 23:10:39 -04:00			`source "$script"`
			`done`

`rbenv-version-name` returns `system` for empty version files. Closes #62, #65, #77. 2011-09-09 16:52:31 -04:00			`if [ -z "$RBENV_VERSION" ] \|\| [ "$RBENV_VERSION" = "system" ]; then`
			`echo "system"`
Split rbenv-version into rbenv-version-name and rbenv-version-origin, update versions, prefix, and which appropriately 2011-08-09 16:41:35 -04:00			`exit`
			`fi`

Accept "ruby-" version prefix but print a warning to stderr 2012-12-30 20:01:30 -05:00			`version_exists() {`
			`local version="$1"`
			`[ -d "${RBENV_ROOT}/versions/${version}" ]`
			`}`
Split rbenv-version into rbenv-version-name and rbenv-version-origin, update versions, prefix, and which appropriately 2011-08-09 16:41:35 -04:00
Accept "ruby-" version prefix but print a warning to stderr 2012-12-30 20:01:30 -05:00			`if version_exists "$RBENV_VERSION"; then`
Split rbenv-version into rbenv-version-name and rbenv-version-origin, update versions, prefix, and which appropriately 2011-08-09 16:41:35 -04:00			`echo "$RBENV_VERSION"`
Accept "ruby-" version prefix but print a warning to stderr 2012-12-30 20:01:30 -05:00			`elif version_exists "${RBENV_VERSION#ruby-}"; then`
			`echo "${RBENV_VERSION#ruby-}"`
Split rbenv-version into rbenv-version-name and rbenv-version-origin, update versions, prefix, and which appropriately 2011-08-09 16:41:35 -04:00			`else`
Display version origin with non-installed versions This is useful as an indicator where it is coming from. 2015-07-17 11:10:33 -04:00			echo "rbenv: version \`$RBENV_VERSION' is not installed (set by $(rbenv-version-origin))" >&2
Split rbenv-version into rbenv-version-name and rbenv-version-origin, update versions, prefix, and which appropriately 2011-08-09 16:41:35 -04:00			`exit 1`
			`fi`