Add venv prompt to base theme

Author: petarnikolovski

themes/base.theme.bash

@@ -587,3 +587,14 @@ function _save-and-reload-history() {
 	local autosave=${1:-0}
 	[[ $autosave -eq 1 ]] && history -a && history -c && history -r
 }
+
+function venv_prompt() {
+	local python_venv=""
+	if [[ -n "${CONDA_DEFAULT_ENV:-}" ]]; then
+		python_venv="${CONDA_DEFAULT_ENV}"
+		PYTHON_VENV_CHAR=${CONDA_PYTHON_VENV_CHAR}
+	elif [[ -n "${VIRTUAL_ENV:-}" ]]; then
+		python_venv="${VIRTUAL_ENV##*/}"
+	fi
+	[[ -n "${python_venv}" ]] && echo "${PYTHON_VENV_CHAR}${python_venv}"
+}

themes/robbyrussell/robbyrussell.theme.bash

@@ -18,19 +18,16 @@ function git_prompt_info() {
   echo -e "$SCM_PREFIX${bold_red}$SCM_BRANCH$SCM_STATE$SCM_SUFFIX"
 }
 
-function venv_prompt() {
-	python_venv=""
-	# Detect python venv
-	if [[ -n "${CONDA_DEFAULT_ENV}" ]]; then
-		python_venv="($PYTHON_VENV_CHAR${CONDA_DEFAULT_ENV}) "
-	elif [[ -n "${VIRTUAL_ENV}" ]]; then
-		python_venv="($PYTHON_VENV_CHAR$(basename "${VIRTUAL_ENV}")) "
+function venv_parenthases() {
+	if [[ $(venv_prompt) != "" ]]; then
+		echo "($(venv_prompt)) "
+	else
+		echo ""
 	fi
-	[[ -n "${python_venv}" ]] && echo "${python_venv}"
 }
 
 function prompt_command() {
-  PS1="$(venv_prompt)${bold_green}➜  ${bold_cyan}\W${reset_color}$(scm_prompt_info)${normal} "
+  PS1="$(venv_parenthases)${bold_green}➜  ${bold_cyan}\W${reset_color}$(scm_prompt_info)${normal} "
 }
 
 PROMPT_COMMAND=prompt_command