[fish] Add custom prompt

config/fish/fish_variables

@@ -3,7 +3,8 @@
 SETUVAR __fish_init_2_3_0:\x1d
 SETUVAR fish_color_autosuggestion:555\x1ebrblack
 SETUVAR fish_color_cancel:\x2dr
-SETUVAR fish_color_command:005fd7
+#SETUVAR fish_color_command:005fd7
+SETUVAR fish_color_command:green
 SETUVAR fish_color_comment:990000
 SETUVAR fish_color_cwd:green
 SETUVAR fish_color_cwd_root:red
@@ -20,6 +21,7 @@ SETUVAR fish_color_quote:999900
 SETUVAR fish_color_redirection:00afff
 SETUVAR fish_color_search_match:bryellow\x1e\x2d\x2dbackground\x3dbrblack
 SETUVAR fish_color_selection:white\x1e\x2d\x2dbold\x1e\x2d\x2dbackground\x3dbrblack
+SETUVAR fish_color_status:red
 SETUVAR fish_color_user:brgreen
 SETUVAR fish_color_valid_path:\x2d\x2dunderline
 SETUVAR fish_greeting:Welcome\x20to\x20fish\x2c\x20the\x20friendly\x20interactive\x20shell

config/fish/functions/__plaid_git_prompt.fish

@@ -0,0 +1,91 @@
+set -g fish_color_git_normal blue
+
+set -g fish_color_git_ahead green
+set -g fish_color_git_behind red
+set -g fish_color_git_diverged magenta
+set -g fish_color_git_staged green
+set -g fish_color_git_unstaged yellow
+set -g fish_color_git_untracked red
+set -g fish_color_git_unmerged red
+
+set -g fish_prompt_git_status_ahead '▲'
+set -g fish_prompt_git_status_behind '▼'
+set -g fish_prompt_git_status_diverged '⯁'
+set -g fish_prompt_git_status_staged '●'
+set -g fish_prompt_git_status_unstaged '●'
+set -g fish_prompt_git_status_untracked '●'
+set -g fish_prompt_git_status_unmerged 'M'
+set -g fish_prompt_git_status_stashed 'S'
+
+set -g fish_prompt_git_status_order ahead behind diverged staged unstaged untracked unmerged stashed
+
+# Useful chars
+# '✓'
+# '⚡'
+# '✚'
+# '●'
+# '▾'
+# '✖'
+# '➜'
+# '⇒'
+# '➤'
+
+function __plaid_git_prompt --description 'Write out the git prompt'
+    # If git isn't installed, there's nothing we can do
+    # Return 1 so the calling prompt can deal with it
+    if not command -sq git
+        return 1
+    end
+    set -l branch (git rev-parse --abbrev-ref HEAD 2>/dev/null)
+    if test -z $branch
+        return
+    end
+
+    set -l index (git status --porcelain -b 2>/dev/null)
+    set -l rst (set_color normal)
+
+    if test -z "$index"
+        printf '%s[%s]%s' (set_color $fish_color_git_normal) $branch $rst
+        return
+    end
+
+    set -l gs
+
+    printf '%s[%s ' (set_color $fish_color_git_normal) $branch
+    for i in $index
+        if echo $i | grep '^[AMRCD]' >/dev/null
+            set -a gs staged
+        end
+        if echo $i | grep '^ [AMRCD]' >/dev/null
+            set -a gs unstaged
+        end
+        if echo $i | grep '^??' >/dev/null
+            set -a gs untracked
+        end
+        if echo $i | grep '^[ADU*][ADU*]' >/dev/null
+            set -a gs unmerged
+        end
+        if echo $i | grep '^## .*ahead' >/dev/null
+            set -a gs ahead
+        end
+        if echo $i | grep '^## .*behind' >/dev/null
+            set -a gs behind
+        end
+        if echo $i | grep '^## .*diverged' >/dev/null
+            set -a gs diverged
+        end
+        if git rev-parse --verify refs/stash >/dev/null 2>&1
+            set -a gs stashed
+        end
+    end
+
+    for i in $fish_prompt_git_status_order
+        if contains $i in $gs
+            set -l color_name fish_color_git_$i
+            set -l status_name fish_prompt_git_status_$i
+            printf '%s%s' (set_color $$color_name) $$status_name
+        end
+    end
+
+    printf '%s]%s' (set_color $fish_color_git_normal) $rst
+end

config/fish/functions/fish_prompt.fish

@@ -0,0 +1,47 @@
+set -g fish_color_user cyan
+set -g fish_color_host green
+set -g fish_color_cwd yellow
+set -g fish_prompt_pwd_dir_length 0
+
+function fish_prompt --description 'Write out the prompt'
+	set -l last_status $status
+    set -l rst (set_color normal)
+
+    # User
+    set -l user (set_color --bold $fish_color_user)(whoami)$rst
+
+    # Host
+    set -l host (set_color --bold $fish_color_host)(prompt_hostname)$rst
+
+    # PWD
+    set -l ppwd (set_color $fish_color_cwd)(prompt_pwd)$rst
+
+    # Git
+    set -l pgit (__plaid_git_prompt)
+    # __fish_hg_prompt
+
+    printf '%s@%s:%s %s\n' $user $host $ppwd $pgit
+
+    switch $fish_bind_mode
+        case default
+            set_color --bold --background red black
+            echo -n '⮜N⮞'
+        case insert
+            set_color --bold green
+            echo -n '⮜I⮞'
+        case replace_one
+            set_color --bold --background yellow black
+            echo -n '⮜R⮞'
+        case visual
+            set_color --bold --background magenta black
+            echo -n '⮜V⮞'
+    end
+    set_color normal
+
+    if not test $last_status -eq 0
+        set_color $fish_color_error
+    end
+
+    printf ' '
+    set_color normal
+end