Get rid of lsb-release dependency

Distrobox is a modern containerized tool to run development workflows in
the isolated spaces.

Reviewed-on: misc/zsh-config#15
Co-authored-by: Vladimir Hodakov <vladimir@hodakov.me>
Co-committed-by: Vladimir Hodakov <vladimir@hodakov.me>

zsh/03-vars.zsh

@@ -6,9 +6,9 @@ OS_RELEASE=`uname -r`
 OS_ARCH=`uname -m`
 
 # Distro detection.
-LSBRELEASE=$(which lsb_release)
+if [[ -f /etc/os-release ]]; then
-if [ $? -eq 0 ]; then
+  . /etc/os-release
-  DISTRO=`lsb_release -i -s`
+  DISTRO=${ID}
 else
   # BSDs OS and macOS can be detected via uname.
   DISTRO=${OS}

zsh/plugins/autosuggestions.plugin.zsh

@@ -1,10 +1,10 @@
 AUTOSUGGESTIONS_PATH="/usr/share/zsh-autosuggestions/zsh-autosuggestions.zsh"
 
-if [ "${DISTRO}" = "Arch" ]; then AUTOSUGGESTIONS_PATH="/usr/share/zsh/plugins/zsh-autosuggestions/zsh-autosuggestions.zsh"; fi
+if [ "${DISTRO}" = "arch" ]; then AUTOSUGGESTIONS_PATH="/usr/share/zsh/plugins/zsh-autosuggestions/zsh-autosuggestions.zsh"; fi
-if [ "${DISTRO}" = "EnveavourOS" ]; then AUTOSUGGESTIONS_PATH="/usr/share/zsh/plugins/zsh-autosuggestions/zsh-autosuggestions.zsh"; fi
+if [ "${DISTRO}" = "endeavouros" ]; then AUTOSUGGESTIONS_PATH="/usr/share/zsh/plugins/zsh-autosuggestions/zsh-autosuggestions.zsh"; fi
 if [[ "${DISTRO}" = "Darwin" && "${OS_ARCH}" == "arm64" ]]; then AUTOSUGGESTIONS_PATH="/opt/homebrew/share/zsh-autosuggestions/zsh-autosuggestions.zsh"; fi
 if [[ "${DISTRO}" = "Darwin" && "${OS_ARCH}" == "x86_64" ]]; then AUTOSUGGESTIONS_PATH="/usr/local/share/zsh-autosuggestions/zsh-autosuggestions.zsh"; fi
-if [ "${DISTRO}" = "VoidLinux" ]; then AUTOSUGGESTIONS_PATH="/usr/share/zsh/plugins/zsh-autosuggestions.zsh"; fi
+if [ "${DISTRO}" = "voidlinux" ]; then AUTOSUGGESTIONS_PATH="/usr/share/zsh/plugins/zsh-autosuggestions.zsh"; fi
 
 if [ -f "${AUTOSUGGESTIONS_PATH}" ]; then
   source "${AUTOSUGGESTIONS_PATH}"

zsh/prompts/fat0troll.zsh

@@ -23,10 +23,13 @@ prompt_fat0troll_setup () {
     vars['brackets_end']="%{$fg[yellow]%}]%{$reset_color%}"
 
     # Session-dependend colorizing.
-    # Local will be black, remote - yellow.
+    # Local will be black, remote and containers - yellow.
     if [[ -n $SSH_TTY ]]; then
         vars['console']="$vars['brackets_start']SSH$vars['brackets_end']"
         vars['default_color']="%{$fg[cyan]%}"
+    elif test -e /run/.containerenv -o -e /.dockerenv; then
+        vars['console']="$vars['brackets_start']📦$vars['brackets_end']"
+        vars['default_color']="%{$fg[cyan]%}"
     else
         vars['console']=""
         vars['default_color']="%{$fg[green]%}"

zsh/prompts/pztrn.zsh

@@ -21,12 +21,17 @@ prompt_pztrn_setup () {
     precmd_functions=(${precmd_functions[@]} "prompt_pztrn_gitinfo" "prompt_pztrn_createprompt")
 
     # Session-dependend colorizing.
-    # Local will be black, remote - yellow.
+    # Local will be black, remote and containers - yellow.
     if [[ -n $SSH_TTY ]]; then
         vars['brackets_start']="%{$fg[yellow]%}[%{$reset_color%}"
         vars['brackets_end']="%{$fg[yellow]%}]%{$reset_color%}"
         vars['console']="$vars['brackets_start']SSH$vars['brackets_end']"
         vars['default_color']="%{$fg[cyan]%}"
+    elif test -e /run/.containerenv -o -e /.dockerenv; then
+        vars['brackets_start']="%{$fg[yellow]%}[%{$reset_color%}"
+        vars['brackets_end']="%{$fg[yellow]%}]%{$reset_color%}"
+        vars['console']="$vars['brackets_start']📦$vars['brackets_end']"
+        vars['default_color']="%{$fg[cyan]%}"
     else
         vars['brackets_start']="%{$reset_color%}%{$fg[gray]%}[%{$reset_color%}"
         vars['brackets_end']="%{$reset_color%}%{$fg[gray]%}]%{$reset_color%}"