flake: add flake-compat

It is good for if I am making a nix update script that needs network
access or some other impurity (although this is probably what
nix-prefetch-git is for but it's good to know how to do it manually,
especially for something like recreating a lockfile)

default.nix

@@ -0,0 +1,13 @@
+(import
+  (
+    let
+      lock = builtins.fromJSON (builtins.readFile ./flake.lock);
+      nodeName = lock.nodes.root.inputs.flake-compat;
+    in
+    fetchTarball {
+      url = lock.nodes.${nodeName}.locked.url or "https://github.com/edolstra/flake-compat/archive/${lock.nodes.${nodeName}.locked.rev}.tar.gz";
+      sha256 = lock.nodes.${nodeName}.locked.narHash;
+    }
+  )
+  { src = ./.; }
+).defaultNix

flake.lock

@@ -177,13 +177,12 @@
       }
     },
     "flake-compat": {
-      "flake": false,
       "locked": {
-        "lastModified": 1696426674,
-        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
+        "lastModified": 1733328505,
+        "narHash": "sha256-NeCCThCEP3eCl2l/+27kNNK7QrwZB1IJCrXfrbv5oqU=",
         "owner": "edolstra",
         "repo": "flake-compat",
-        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
+        "rev": "ff81ac966bb2cae68946d5ed5fc4994f96d0ffec",
         "type": "github"
       },
       "original": {
@@ -211,11 +210,11 @@
     "flake-compat_3": {
       "flake": false,
       "locked": {
-        "lastModified": 1673956053,
-        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
+        "lastModified": 1696426674,
+        "narHash": "sha256-kvjfFW7WAETZlt09AgDn1MrtKzP7t90Vf7vypd3OL1U=",
         "owner": "edolstra",
         "repo": "flake-compat",
-        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
+        "rev": "0f9255e01c2351cc7d116c072cb317785dd33b33",
         "type": "github"
       },
       "original": {
@@ -241,6 +240,22 @@
       }
     },
     "flake-compat_5": {
+      "flake": false,
+      "locked": {
+        "lastModified": 1673956053,
+        "narHash": "sha256-4gtG9iQuiKITOjNQQeQIpoIB6b16fm+504Ch3sNKLd8=",
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "rev": "35bb57c0c8d8b62bbfd284272c928ceb64ddbde9",
+        "type": "github"
+      },
+      "original": {
+        "owner": "edolstra",
+        "repo": "flake-compat",
+        "type": "github"
+      }
+    },
+    "flake-compat_6": {
       "flake": false,
       "locked": {
         "lastModified": 1733328505,
@@ -256,7 +271,7 @@
         "type": "github"
       }
     },
-    "flake-compat_6": {
+    "flake-compat_7": {
       "flake": false,
       "locked": {
         "lastModified": 1733328505,
@@ -983,7 +998,7 @@
     "lanzaboote": {
       "inputs": {
         "crane": "crane",
-        "flake-compat": "flake-compat_2",
+        "flake-compat": "flake-compat_3",
         "flake-parts": "flake-parts_2",
         "nixpkgs": [
           "nixpkgs"
@@ -1028,7 +1043,7 @@
     },
     "nix-minecraft": {
       "inputs": {
-        "flake-compat": "flake-compat_3",
+        "flake-compat": "flake-compat_4",
         "flake-utils": "flake-utils",
         "nixpkgs": [
           "nixpkgs-unstable"
@@ -1051,7 +1066,7 @@
     },
     "nix-minecraft-upstream": {
       "inputs": {
-        "flake-compat": "flake-compat_4",
+        "flake-compat": "flake-compat_5",
         "flake-utils": "flake-utils_2",
         "nixpkgs": [
           "nixpkgs-unstable"
@@ -1073,7 +1088,7 @@
     },
     "nix-wsl": {
       "inputs": {
-        "flake-compat": "flake-compat_5",
+        "flake-compat": "flake-compat_6",
         "nixpkgs": [
           "nixpkgs"
         ]
@@ -1209,7 +1224,7 @@
     },
     "pre-commit-hooks": {
       "inputs": {
-        "flake-compat": "flake-compat",
+        "flake-compat": "flake-compat_2",
         "gitignore": "gitignore",
         "nixpkgs": [
           "hyprland",
@@ -1261,6 +1276,7 @@
       "inputs": {
         "agenix": "agenix",
         "base16": "base16",
+        "flake-compat": "flake-compat",
         "flake-parts": "flake-parts",
         "home-manager": "home-manager_2",
         "home-manager-unstable": "home-manager-unstable",
@@ -1332,7 +1348,7 @@
         "base16-helix": "base16-helix",
         "base16-vim": "base16-vim",
         "firefox-gnome-theme": "firefox-gnome-theme",
-        "flake-compat": "flake-compat_6",
+        "flake-compat": "flake-compat_7",
         "flake-utils": "flake-utils_3",
         "git-hooks": "git-hooks",
         "gnome-shell": "gnome-shell",

flake.nix

@@ -15,6 +15,12 @@
 
     flake-parts.url = "github:hercules-ci/flake-parts";
 
+    # this is nice so one-off impure scripts can interact with attributes in
+    # this flake
+    flake-compat = {
+      url = "github:edolstra/flake-compat";
+    };
+
     home-manager = {
       url = "github:nix-community/home-manager/release-23.11";
       inputs.nixpkgs.follows = "nixpkgs";