Support recursive.

nix/configuration/configuration.nix

@@ -80,8 +80,9 @@
 
   # me.install.user.file.talexander.".local/nixcfg" = ./README.org;
   me.install.user.talexander.file.".local/nixcfg" = {
-    source = ./flake.lock;
+    source = ./roles;
-    # method = "overwrite";
+    recursive = true;
+    method = "overwrite";
   };
 
   nix.settings.experimental-features = [

nix/configuration/util/install_files/default.nix

@@ -51,20 +51,51 @@ let
           (if group != "" then "-g ${group}" else "")
         ];
       in
+      if target.recursive then
+        [
+          ''
+            find ${source} -type f -print0 | while read -r -d "" file; do
+                relative_path=$(realpath -s --relative-to ${source} "$file")
+                full_dest=${destination}/"$relative_path"
+                containing_directory=$(dirname "$full_dest")
+                if [ ! -e "$containing_directory" ]; then
+                    $DRY_RUN_CMD install $VERBOSE_ARG -d "$containing_directory"
+                fi
+                $DRY_RUN_CMD install $VERBOSE_ARG -D --compare ${flags} "$file" "$full_dest"
+            done
+          ''
+        ]
+      else
+        [
           ''
             $DRY_RUN_CMD install $VERBOSE_ARG -D --compare ${flags} ${source} ${destination}
           ''
+        ]
     );
     "uninstall" = (
       target:
       let
         inherit (get_shell_values target)
+          source
           destination
           ;
       in
+      if target.recursive then
+        [
+          ''
+            find ${source} -type f -print0 | while read -r -d "" file; do
+                relative_path=$(realpath -s --relative-to ${source} "$file")
+                full_dest=${destination}/"$relative_path"
+                $DRY_RUN_CMD echo rm -f "$full_dest"
+            done
+          ''
+        ]
+      else
+        [
           ''
             $DRY_RUN_CMD echo rm -f ${destination}
           ''
+        ]
     );
   };
   install_user_file_symlink = {
@@ -75,6 +106,7 @@ let
         inherit (get_shell_values target)
           source
           destination
+          mode
           username
           group
           ;
@@ -84,22 +116,59 @@ let
             group
           ]
         );
+        flags = lib.strings.concatStringsSep " " [
+          (if mode != "" then "-m ${mode}" else "")
+          (if username != "" then "-o ${username}" else "")
+          (if group != "" then "-g ${group}" else "")
+        ];
       in
+      if target.recursive then
+        [
+          ''
+            find ${source} -type f -print0 | while read -r -d "" file; do
+                relative_path=$(realpath -s --relative-to ${source} "$file")
+                full_dest=${destination}/"$relative_path"
+                containing_directory=$(dirname "$full_dest")
+                if [ ! -e "$containing_directory" ]; then
+                    $DRY_RUN_CMD install $VERBOSE_ARG -d ${flags} "$containing_directory"
+                fi
+                $DRY_RUN_CMD ln $VERBOSE_ARG -s "$file" "$full_dest"
+                $DRY_RUN_CMD chown $VERBOSE_ARG -h ${owner} "$full_dest"
+            done
+          ''
+        ]
+      else
+        [
           ''
             $DRY_RUN_CMD ln $VERBOSE_ARG -s ${source} ${destination}
             $DRY_RUN_CMD chown $VERBOSE_ARG -h ${owner} ${destination}
           ''
+        ]
     );
     "uninstall" = (
       target:
       let
         inherit (get_shell_values target)
+          source
           destination
           ;
       in
+      if target.recursive then
+        [
+          ''
+            find ${source} -type f -print0 | while read -r -d "" file; do
+                relative_path=$(realpath -s --relative-to ${source} "$file")
+                full_dest=${destination}/"$relative_path"
+                $DRY_RUN_CMD echo rm -f "$full_dest"
+            done
+          ''
+        ]
+      else
+        [
           ''
             $DRY_RUN_CMD echo rm -f ${destination}
           ''
+        ]
     );
   };
 in
@@ -176,6 +245,13 @@ in
                           example = ./files/foo.txt;
                           description = "The source file to install into the destination.";
                         };
+                        recursive = lib.mkOption {
+                          type = lib.types.bool;
+                          default = false;
+                          defaultText = "recursive";
+                          example = lib.literalExpression false;
+                          description = "Whether we want to recurse through the directory doing individual installs for each file.";
+                        };
                       };
 
                       config = {
@@ -201,9 +277,11 @@ in
         builtins.map (user: (builtins.map (path: user.file."${path}") (attrNames user.file))) enabled_users
       );
       enabled_file_targets = filter (target: target.enable) all_file_targets;
-      check_commands = builtins.map (install_user_file "check") enabled_file_targets;
+      check_commands = lib.flatten (builtins.map (install_user_file "check") enabled_file_targets);
-      install_commands = builtins.map (install_user_file "install") enabled_file_targets;
+      install_commands = lib.flatten (builtins.map (install_user_file "install") enabled_file_targets);
-      uninstall_commands = builtins.map (install_user_file "uninstall") enabled_file_targets;
+      uninstall_commands = lib.flatten (
+        builtins.map (install_user_file "uninstall") enabled_file_targets
+      );
     in
     {
       systemd.services.me-install-file = {
@@ -220,12 +298,26 @@ in
           Type = "oneshot";
           RemainAfterExit = "yes";
         };
-        script = (
+        script =
-          lib.strings.concatStringsSep "\n" (filter (cmd: cmd != "") (check_commands ++ install_commands))
+          ''
-        );
+            set -o pipefail
-        preStop = (lib.strings.concatStringsSep "\n" (filter (cmd: cmd != "") uninstall_commands));
+            IFS=$'\n\t'
+          ''
+          + (lib.strings.concatStringsSep "\n" (
+            [
+            ]
+            ++ check_commands
+            ++ install_commands
+          ));
+        preStop =
+          ''
+            set -o pipefail
+            IFS=$'\n\t'
+          ''
+          + (lib.strings.concatStringsSep "\n" uninstall_commands);
       };
 
       environment.etc."install_out".text = config.systemd.services.me-install-file.script;
+      environment.etc."uninstall_out".text = config.systemd.services.me-install-file.preStop;
     };
 }