feat(fish): Add extract()

home/programs/fish.nix

@@ -2,6 +2,13 @@
 {
   home.packages = with pkgs; [
     babelfish
+    gnutar
+    bzip2
+    bzip3
+    gzip
+    unzip
+    pax
+    unrar-free
   ];
 
   programs.fish = {
@@ -36,29 +43,68 @@
       '';
 
     shellAbbrs = {
-      cp = {
+      cp = "cp -iv";
-        position = "command";
+      mkdir = "mkdir -pv";
-        expansion = "cp -iv";
+      mv = "mv -iv";
+      rm = "rm -r";
+      grep = "grep --color=auto";
     };
 
-      mkdir = {
+    functions = {
-        position = "command";
+      extract = {
-        expansion = "mkdir -pv";
+        argumentNames = "file";
-      };
+        body = # fish
+          ''
+            set --erase argv[1]
 
-      mv = {
+            if test -f "$file"
-        position = "command";
+              switch "$file"
-        expansion = "mv -iv";
+                case "*.tar.bz2"
-      };
+                  tar -jxvf $argv $file
 
-      rm = {
+                case "*.tar.gz"
-        position = "command";
+                  tar -zxvf $argv $file
-        expansion = "rm -r";
-      };
 
-      grep = {
+                case "*.bz2"
-        position = "command";
+                  bunzip2 $argv $file
-        expansion = "grep --color=auto";
+
+                case "*.bz3"
+                  bunzip3 $argv $file
+
+                case "*.gz"
+                  gunzip $argv $file
+
+                case "*.tar"
+                  tar -xvf $argv $file
+
+                case "*.tbz2"
+                  tar -jxvf $argv $file
+
+                case "*.tgz"
+                  tar -zxvf $argv $file
+
+                case "*.zip" "*.ZIP"
+                  unzip $argv $file
+
+                case "*pax"
+                  cat $file | pax -r $argv
+
+                case "*.pax.Z"
+                  uncompress $file --stdout | pax -r $argv
+
+                case "*.rar"
+                  unrar-free $file
+
+                case "*.Z"
+                  uncompress $argv $file
+
+                case "*"
+                  echo "'$file' cannot be extracted via extract()."
+              end
+            else
+              echo "'$file' is not a valid file."
+            end
+          '';
       };
     };
   };