add universal package upgrade function

It handles:

+ Arch with AUR (pacaur/yaourt)
+ Debian

1 files changed, 45 insertions, 0 deletions

diff --git a/config/fish/functions/upgrade.fish b/config/fish/functions/upgrade.fish
new file mode 100644
index 0000000..aace60b
--- /dev/null
+++ b/config/fish/functions/upgrade.fish
@@ -0,0 +1,45 @@
+#TODO update dotfile directory
+
+function upgrade -d "universal upgrade function"
+	function is_command -a cmd -d "check if a command is available"
+        type $cmd >/dev/null 2>/dev/null
+    end
+
+    function maybe_root -a cmd -d "execute a cmd if it fails try to use sudo"
+        set res (eval $cmd 2>&1)
+        # cmd failed
+        if test $status -gt 0
+            # try to guess cause
+            if string match -r ".*root|permission.*" "$res"
+               set s_cmd ""
+               for c in (string split ";" $cmd)
+                   set s_cmd $s_cmd (echo $c | sed -r "s/^ ?(and |or )?/\1sudo /" -)
+               end
+               eval (string join ";" $s_cmd)
+            else
+                echo "$res" >&2
+                return $status
+            end
+        end
+    end
+
+    # Arch
+    if is_command pacman
+        if is_command pacaur
+            pacaur -Syu
+        else if is_command yaourt
+            yaourt -Syua
+        else
+            maybe_root "pacman -Syu"
+        end
+    end
+
+    # Debian based
+    if is_command apt-get
+        if is_command apt
+            maybe_root "apt update; and apt dist-upgrade"
+        else
+            maybe_root "apt-get update; and apt-get dist-upgrade"
+        end
+    end
+end