ranger: Drop zshcd in favor of the more universal SHELL_CD

.config/ranger/rc.conf

@@ -166,9 +166,10 @@ map J       move down=5
 ## New tab in current folder. Use 'gn' for home folder.
 map <c-n>  eval fm.tab_new('%d')
 
-## Start shell in current folder. Needs zshcd script. This is useful if you have
-## multiple tabs and you do not want to lose them just to run a shell.
-map S shell zshcd %d
+## Start shell in current folder. The shell must be configured to read the
+## SHELL_CD variable. This is useful if you have multiple tabs and you do not
+## want to lose them just to run a shell.
+map S shell SHELL_CD=%d bash
 
 ## Image preview toggle
 map zi set preview_images=True

.scripts/zshcd

@@ -1,46 +0,0 @@
-#!/bin/sh
-## Start zsh in the directory specified as first argument. Useful for file
-## browsers to start shell in pointed folder.
-
-if [ ! -d "$1" ]; then
-	zsh
-	exit
-fi
-
-## Default files.
-ZDIRS="$HOME/.cache/zsh/dirs"
-
-## Fetch file location dynamically.
-if [ ! -f ~/.zshrc ]; then
-	echo '~/.zshrc not found'
-	exit 1
-fi
-
-## We need realpath to prevent us from adding duplicates to the zsh
-## DIRSTACKFILE.
-if ! command -v realpath >/dev/null 2>&1; then
-	echo "'realpath' not found"
-	exit 1
-fi
-
-SHELL_DIR_GREP="$(grep "SHELL_DIR=" ~/.zshrc | cut -f2 -d=)"
-[ -n "$SHELL_DIR_GREP" ] && SHELL_DIR="$(eval echo "$SHELL_DIR_GREP")"
-if [ ! -d "$SHELL_DIR" ]; then
-	echo 'SHELL_DIR not found'
-	exit 1
-fi
-
-ZDIRS_GREP="$(grep -rm1 'DIRSTACKFILE=' "$SHELL_DIR" | cut -f2 -d=)"
-[ -n "$ZDIRS_GREP" ] && ZDIRS="$(eval echo "$ZDIRS_GREP")"
-
-if [ ! -f "$ZDIRS" ]; then
-	echo 'DIRSTACKFILE not found'
-	exit 1
-fi
-
-## Prepend argument to zsh dirstack.
-BUF="$(realpath "$1")
-$(grep -v "$(realpath "$1")" "$ZDIRS")"
-echo "$BUF" > "$ZDIRS"
-
-zsh