From e3c65cfe55e20cbe92368410324fd5a21562f00c Mon Sep 17 00:00:00 2001
From: pagedmov <pagedmov@gmail.com>
Date: Thu, 7 Nov 2024 14:29:46 -0500
Subject: [PATCH] added fetchfromgh, which takes a github username and repo
 like someuser/somerepo and returns a pkgs.fetchFromGitHub call

---
 modules/home/scripts/default.nix         |  4 +++
 modules/home/scripts/nix/fetchfromgh.nix | 38 ++++++++++++++++++++++++
 2 files changed, 42 insertions(+)
 create mode 100644 modules/home/scripts/nix/fetchfromgh.nix

diff --git a/modules/home/scripts/default.nix b/modules/home/scripts/default.nix
index 13330c8..39134df 100755
--- a/modules/home/scripts/default.nix
+++ b/modules/home/scripts/default.nix
@@ -6,6 +6,7 @@
   pkgs,
   ...
 }: let
+  fetchfromgh = import ./nix/fetchfromgh.nix { inherit pkgs; };
   vipkg = import ./commands/vipkg.nix { inherit pkgs; };
   keyring         = import ./wm-controls/keyring.nix { inherit pkgs; };
   invoke          = import ./commands/invoke.nix { inherit pkgs; };
@@ -77,6 +78,8 @@ in {
 
 
     # Nix Shortcuts
+    movOpts.movScripts.nixShortcuts.fetchfromgh.enable = 
+      scriptOverride "Provides a full pkgs.fetchFromGitHub call from a repository url" "nixShortcuts" "fetchfromgh";
     movOpts.movScripts.nixShortcuts.garbage-collect.enable =
       scriptOverride "Enables the garbage-collect script" "nixShortcuts" "garbage-collect";
     movOpts.movScripts.nixShortcuts.nsp.enable =
@@ -106,6 +109,7 @@ in {
                     ++ lib.optionals config.movOpts.movScripts.hyprlandControls.mkscreenshots.enable [ mkscreenshots ]
 
                     # Nix Shortcuts Overrides
+                    ++ lib.optionals config.movOpts.movScripts.nixShortcuts.fetchfromgh.enable [ fetchfromgh ]
                     ++ lib.optionals config.movOpts.movScripts.nixShortcuts.garbage-collect.enable [ garbage-collect ]
                     ++ lib.optionals config.movOpts.movScripts.nixShortcuts.nsp.enable [ nsp ]
                     ++ lib.optionals config.movOpts.movScripts.nixShortcuts.rebuild.enable [ rebuild ];
diff --git a/modules/home/scripts/nix/fetchfromgh.nix b/modules/home/scripts/nix/fetchfromgh.nix
new file mode 100644
index 0000000..82d0550
--- /dev/null
+++ b/modules/home/scripts/nix/fetchfromgh.nix
@@ -0,0 +1,38 @@
+{ pkgs ? import <nixpkgs> { } }:
+
+pkgs.writeShellApplication {
+  name = "fetchfromgh";
+  runtimeInputs = [
+    pkgs.nix-prefetch-scripts
+  ];
+  text = ''
+    if [ $# -ne 1 ] || ! echo "$1" | grep -qE "[A-Za-z0-9_-]+/[A-Za-z0-9_-]+"; then
+      echo "Usage: fetchfromgh someuser/somerepo"
+      echo "     - i.e. fetchfromgh pagedMov/nixos-config"
+      exit 1
+    fi
+
+  if ! curl -s -o /dev/null -w "%{http_code}" "https://github.com/$1" | grep -q "200"; then
+    echo "Couldn't find that repository, curl returned 404."
+    exit 1
+  fi
+
+    json=$(nix-prefetch-git --quiet "https://github.com/$1")
+
+    url=$(echo "$json" | jq '.url' | tr -d '"')
+    owner=$(echo "$url" | awk -F'/' '{print $(NF-1)}')
+    repo=$(echo "$url" | awk -F'/' '{print $NF}')
+    rev=$(echo "$json" | jq '.rev' | tr -d '"')
+    hash=$(echo "$json" | jq '.hash' | tr -d '"')
+
+    output="\
+    src = pkgs.fetchFromGitHub {
+      owner = \"$owner\";
+      repo = \"$repo\";
+      rev = \"$rev\";
+      hash = \"$hash\";
+    };
+    "
+    echo "$output"
+  '';
+}