From b8a237fe6530425ca8c7ae77458f43da9aae9f5b Mon Sep 17 00:00:00 2001
From: Raito Bezarius <masterancpp@gmail.com>
Date: Mon, 22 Nov 2021 22:04:22 +0100
Subject: [PATCH] module(wp): add fetchers utilities

---
 modules/web-apps/wordpress/fetchers-utils.nix | 45 +++++++++++++++++++
 modules/web-apps/wordpress/plugins.nix        |  2 +-
 modules/web-apps/wordpress/themes.nix         |  2 +-
 3 files changed, 47 insertions(+), 2 deletions(-)
 create mode 100644 modules/web-apps/wordpress/fetchers-utils.nix

diff --git a/modules/web-apps/wordpress/fetchers-utils.nix b/modules/web-apps/wordpress/fetchers-utils.nix
new file mode 100644
index 0000000..40fbbb2
--- /dev/null
+++ b/modules/web-apps/wordpress/fetchers-utils.nix
@@ -0,0 +1,45 @@
+{ fetchzip, runCommand, unzip, ... }: {
+  # Builds a package from a zip archive.
+  # The archive must have exactly one, top-level directory which will stripped.
+  # Example: zipArchive "my-package-name" ./my-package.zip
+  zipArchive = name: path: runCommand name { buildInputs = [ unzip ]; } ''
+    unzip "${path}" -d "$TEMPDIR"
+    top_dir=$(find "$TEMPDIR" -type d -mindepth 1 -maxdepth 1)
+    if [ "$(echo "$top_dir" | wc -l)" -ne 1 ]; then
+      echo Archive must have exactly one top-level directory.
+      exit 1
+    fi
+
+    mv "$top_dir" "$out"
+  '';
+
+  # Builds a package from a folder.
+  # Example: folder "my-package-name" ./my-package
+  folder = name: path: runCommand name {} ''
+    ln -s "${path}" "$out"
+  '';
+
+  # Builds a package from a registered WordPress plugin.
+  # Example: getPlugin "akismet" "3.2" "0ri9a0lbr269r3crmsa6hn4v4nd4dyblrb0ffvkmig2pvvx25hyn"
+  # To determine the name, version, and SHA256 hash of a plugin, find it on
+  # https://wordpress.org/plugins and look at the URL of the "Download" button. Most URLs will tell
+  # you the name and version. To determine the hash, install `nix-prefetch-zip`
+  # (via `nix-env -i nix-prefetch-zip`) and run it on the plugin URL:
+  #   `nix-prefetch-zip <URL>`.
+  getPlugin = name: version: sha256: fetchzip {
+    inherit name sha256;
+    url = "https://downloads.wordpress.org/plugin/${name}.${version}.zip";
+  };
+
+  # Builds a package from a registered WordPress theme.
+  # Example: getTheme "twentyseventeen" "1.0" "01779xz4c3b1drv3v2d1p1rdh1w9a0wsxjxpvp4nzwm26h7bvg7n"
+  # To determine the name, version, and SHA256 hash of a theme, find it on
+  # https://wordpress.org/themes and look at the URL of the "Download" button. Most URLs will tell
+  # you the name and version. To determine the hash, install `nix-prefetch-zip`
+  # (via `nix-env -i nix-prefetch-zip`) and run it on the theme URL:
+  #   `nix-prefetch-zip <URL>`.
+  getTheme = name: version: sha256: fetchzip {
+    inherit name sha256;
+    url = "https://downloads.wordpress.org/theme/${name}.${version}.zip";
+  };
+}
diff --git a/modules/web-apps/wordpress/plugins.nix b/modules/web-apps/wordpress/plugins.nix
index 267c4c4..2e07ace 100644
--- a/modules/web-apps/wordpress/plugins.nix
+++ b/modules/web-apps/wordpress/plugins.nix
@@ -1,7 +1,7 @@
 # A list of your WordPress plugins.
 { callPackage, ... }:
 let
-  utils = callPackage ./utils.nix {};
+  utils = callPackage ./fetchers-utils.nix {};
   getPlugin = utils.getPlugin;
 
   requiredPlugins = [
diff --git a/modules/web-apps/wordpress/themes.nix b/modules/web-apps/wordpress/themes.nix
index 97e9a53..a4a153e 100644
--- a/modules/web-apps/wordpress/themes.nix
+++ b/modules/web-apps/wordpress/themes.nix
@@ -1,7 +1,7 @@
 # A list of your WordPress themes.
 { callPackage, ... }:
 let
-  utils = callPackage ./utils.nix {};
+  utils = callPackage ./fetchers-utils.nix {};
   getTheme = utils.getTheme;
 in [
   (getTheme "twentyseventeen" "1.1" "1xsdz1s68mavz9i4lhckh7rqw266jqm5mn3ql1gbz03zf6ghf982")