fish: add clone function

.config/fish/functions/clone.fish

@@ -0,0 +1,24 @@
+function clone --argument-names giturl
+    # These regular expressions are far from comprehensive, but they work for me.
+    #
+    # Examples:
+    #   https://github.com/NixOS/nix
+    #   https://git.sr.ht/~sircmpwn/git.sr.ht
+    #   git@git.sr.ht:~crg/home
+    #   ssh://git@gitlab.haskell.org:ghc/ghc.git
+    #
+    set --local giturl_format1 '^https:\/\/(?<githost>[^\/]+)\/(?<gituser>[^\/]+)\/(?<gitrepo>.+)$'
+    set --local giturl_format2 '^(ssh:\/\/)?[a-z]+?@(?<githost>[^:]+):([0-9]+\/)?(?<gituser>[^\/]+)\/(?<gitrepo>.+)$'
+
+    string match -rq $giturl_format1 $giturl; or string match -rq $giturl_format2 $giturl
+
+    set gituser (string replace '~' '' $gituser)
+    set gitrepo (string replace -r '.git$' '' $gitrepo)
+
+    set --local gitdir "$HOME/Code/$githost/$gituser/$gitrepo"
+
+    if confirm "Clone to $gitdir?"
+        git clone $giturl "$gitdir"
+        cd "$gitdir"
+    end
+end

.config/fish/functions/confirm.fish

@@ -1,6 +1,6 @@
-function confirm --description "Ask for user confirmation"
+function confirm --description "Ask for user confirmation" --argument-names prompt
     while true
-        read --local --prompt-str='Are you sure you want to continue? [y/N] ' confirmed
+        read --local --prompt-str="$prompt [y/N] " confirmed
 
         switch $confirmed
             case Y y

.config/fish/functions/nix_upgrade.fish

@@ -23,7 +23,7 @@ function nix_upgrade --description "Upgrade nix packages"
     test -z "$nix_pkgs_rem" || echo "Removed packages: $nix_pkgs_rem"
 
     # Step 3: Confirm changes
-    if confirm
+    if confirm "Continue with upgrade?"
         nix-env -irf "$nix_pkgs_filepath"
     end
 end

.config/fish/functions/npm_upgrade.fish

@@ -5,7 +5,7 @@ function npm_upgrade --description "Upgrade npm packages"
         echo "All packages up-to-date."
     else
         echo "Outdated packages: $npm_pkgs_outdated"
-        if confirm
+        if confirm "Continue with upgrade?"
             npm update -g
         end
     end

.config/fish/functions/pip_upgrade.fish

@@ -5,7 +5,7 @@ function pip_upgrade --description "Upgrade python packages"
         echo "All packages up-to-date."
     else
         echo "Outdated packages: $py_pkgs_outdated"
-        if confirm
+        if confirm "Continue with upgrade?"
             for py_pkg in $py_pkgs_outdated
                 python3 -m pip install -U $py_pkg
             end