From 226ab0f31dae49e8598a534899020f1cb66cb3f5 Mon Sep 17 00:00:00 2001
From: Klesh Wong <klesh@qq.com>
Date: Thu, 17 Dec 2020 16:08:47 +0800
Subject: [PATCH] [feature] make dash/bat optional

---
 cli/fish.sh | 31 +++++++++++++++++++------------
 env.sh      |  7 +++++++
 2 files changed, 26 insertions(+), 12 deletions(-)

diff --git a/cli/fish.sh b/cli/fish.sh
index bce4712..1ba2617 100755
--- a/cli/fish.sh
+++ b/cli/fish.sh
@@ -5,12 +5,14 @@ DIR=$(dirname "$(readlink -f "$0")")
 . "$DIR/../env.sh"
 
 log 'Setting up shell'
-
 case "$PM" in
     apt)
         sudo add-apt-repository ppa:fish-shell/release-3 -y
         sudo apt update
-        sudo apt install fish silversearcher-ag dash bat -y
+        sudo apt install fish silversearcher-ag -y
+        if [ "$DISTRIB_RELEASE_MAJOR" -gt 19 ] || [ "$DISTRIB_RELEASE" = "19.10" ]; then
+            sudo apt install dash bat  -y
+        fi
         lnsf /usr/bin/batcat "$HOME/.local/bin/bat"
         intorepo https://github.com/junegunn/fzf.git "$HOME/.fzf"
         ./install --all
@@ -36,19 +38,24 @@ case "$PM" in
         ;;
 esac
 
-log 'Setting up bat'
-BAT_THEMES="$(bat --config-dir)/themes"
-BAT_GRUVBOX="$BAT_THEMES/gruvbox"
-if [ ! -d "$BAT_GRUVBOX" ]; then
-    mkdir -p "$BAT_THEMES"
-    git_clone https://github.com/peaceant/gruvbox.git "$BAT_GRUVBOX"
+
+if has_cmd bat; then
+    log 'Setting up bat'
+    BAT_THEMES="$(bat --config-dir)/themes"
+    BAT_GRUVBOX="$BAT_THEMES/gruvbox"
+    if [ ! -d "$BAT_GRUVBOX" ]; then
+        mkdir -p "$BAT_THEMES"
+        git_clone https://github.com/peaceant/gruvbox.git "$BAT_GRUVBOX"
+    fi
 fi
 
-log 'Setting up dash as default shell'
-sudo /usr/bin/ln -sfT dash /usr/bin/sh
+if has_cmd dash; then
+    log 'Setting up dash as default shell'
+    sudo /usr/bin/ln -sfT dash /usr/bin/sh
 
-if [ "$(awk -F':' '/^'"$USER"'/{print $7}' /etc/passwd)" != "/bin/sh" ]; then
-    chsh -s /bin/sh
+    if [ "$(awk -F':' '/^'"$USER"'/{print $7}' /etc/passwd)" != "/bin/sh" ]; then
+        chsh -s /bin/sh
+    fi
 fi
 
 
diff --git a/env.sh b/env.sh
index 3b8179f..68948de 100755
--- a/env.sh
+++ b/env.sh
@@ -107,6 +107,13 @@ case "$PM" in
             openssh-client \
             curl wget \
             man sudo
+        if [ -f /etc/lsb-release ]; then
+            set -a
+            . /etc/lsb-release
+            set +a
+            export DISTRIB_RELEASE_MAJOR=${DISTRIB_RELEASE%.*}
+            export DISTRIB_RELEASE_MINOR=${DISTRIB_RELEASE#.*}
+        fi
         ;;
     pacman)
         sudo pacman -S --noconfirm --needed \