From bea3a3f50c29836b0c6b6f3a29bbe4fbc734996e Mon Sep 17 00:00:00 2001
From: Matteo Pacini <matteo@codecraft.it>
Date: Sun, 7 Jul 2024 21:54:26 +0100
Subject: [PATCH] miru: added passthru.updateScript

---
 pkgs/by-name/mi/miru/darwin.nix  |  8 ++++-
 pkgs/by-name/mi/miru/linux.nix   | 10 ++++--
 pkgs/by-name/mi/miru/package.nix | 21 +++++++++++--
 pkgs/by-name/mi/miru/update.sh   | 52 ++++++++++++++++++++++++++++++++
 4 files changed, 86 insertions(+), 5 deletions(-)
 create mode 100755 pkgs/by-name/mi/miru/update.sh

diff --git a/pkgs/by-name/mi/miru/darwin.nix b/pkgs/by-name/mi/miru/darwin.nix
index c93a20453bba..e9939f35cb41 100644
--- a/pkgs/by-name/mi/miru/darwin.nix
+++ b/pkgs/by-name/mi/miru/darwin.nix
@@ -7,9 +7,15 @@
   pname,
   version,
   meta,
+  passthru,
 }:
 stdenvNoCC.mkDerivation rec {
-  inherit pname version meta;
+  inherit
+    pname
+    version
+    meta
+    passthru
+    ;
 
   src = fetchurl {
     url = "https://github.com/ThaUnknown/miru/releases/download/v${version}/mac-Miru-${version}-mac.zip";
diff --git a/pkgs/by-name/mi/miru/linux.nix b/pkgs/by-name/mi/miru/linux.nix
index 43f59abd1a8b..aa36804c3089 100644
--- a/pkgs/by-name/mi/miru/linux.nix
+++ b/pkgs/by-name/mi/miru/linux.nix
@@ -5,15 +5,21 @@
   pname,
   version,
   meta,
+  passthru,
 }:
 
 appimageTools.wrapType2 rec {
-  inherit pname version meta;
+  inherit
+    pname
+    version
+    meta
+    passthru
+    ;
 
   src = fetchurl {
     url = "https://github.com/ThaUnknown/miru/releases/download/v${version}/linux-Miru-${version}.AppImage";
     name = "${pname}-${version}.AppImage";
-    sha256 = "sha256-wnqCKnZKt0Fj8TasdRVzI558W7aIB5FLkcDEiZfz3ZQ=";
+    hash = "sha256-wnqCKnZKt0Fj8TasdRVzI558W7aIB5FLkcDEiZfz3ZQ=";
   };
 
   extraInstallCommands =
diff --git a/pkgs/by-name/mi/miru/package.nix b/pkgs/by-name/mi/miru/package.nix
index 0b7a2e1d8755..a63389875d34 100644
--- a/pkgs/by-name/mi/miru/package.nix
+++ b/pkgs/by-name/mi/miru/package.nix
@@ -32,8 +32,25 @@ let
       instead of flat out closing MPV.
     '';
   };
+  passthru = {
+    updateScript = ./update.sh;
+  };
 in
 if stdenv.isDarwin then
-  callPackage ./darwin.nix { inherit pname version meta; }
+  callPackage ./darwin.nix {
+    inherit
+      pname
+      version
+      meta
+      passthru
+      ;
+  }
 else
-  callPackage ./linux.nix { inherit pname version meta; }
+  callPackage ./linux.nix {
+    inherit
+      pname
+      version
+      meta
+      passthru
+      ;
+  }
diff --git a/pkgs/by-name/mi/miru/update.sh b/pkgs/by-name/mi/miru/update.sh
new file mode 100755
index 000000000000..e2d2cba736a6
--- /dev/null
+++ b/pkgs/by-name/mi/miru/update.sh
@@ -0,0 +1,52 @@
+#!/usr/bin/env nix-shell
+#!nix-shell -i bash -p curl jq gnused
+
+set -euo pipefail
+
+ROOT="$(dirname "$(readlink -f "$0")")"
+if [[ ! "$(basename $ROOT)" == "miru" || ! -f "$ROOT/package.nix" ]]; then
+    echo "error: Not in the miru folder" >&2
+    exit 1
+fi
+
+PACKAGE_NIX="$ROOT/package.nix"
+LINUX_NIX="$ROOT/linux.nix"
+DARWIN_NIX="$ROOT/darwin.nix"
+
+MIRU_LATEST_VER="$(curl -s ${GITHUB_TOKEN:+-u ":$GITHUB_TOKEN"} "https://api.github.com/repos/ThaUnknown/miru/releases/latest" | jq -r .tag_name | sed 's/^v//')"
+MIRU_CURRENT_VER="$(grep -oP 'version = "\K[^"]+' "$PACKAGE_NIX")"
+
+if [[ "$MIRU_LATEST_VER" == "null" ]]; then
+    echo "error: could not fetch miru latest version from GitHub API" >&2
+    exit 1
+fi
+
+if [[ "$MIRU_LATEST_VER" == "$MIRU_CURRENT_VER" ]]; then
+    echo "miru is up-to-date"
+    exit 0
+fi
+
+get_hash() {
+    # $1: URL
+    nix-hash --to-sri --type sha256 "$(nix-prefetch-url --type sha256 "$1")"
+}
+
+replace_hash_in_file() {
+    # $1: file
+    # $2: new hash
+    sed -i "s#hash = \".*\"#hash = \"$2\"#g" "$1"
+}
+
+replace_version_in_file() {
+    # $1: file
+    # $2: new version
+    sed -i "s#version = \".*\";#version = \"$2\";#g" "$1"
+}
+
+MIRU_LINUX_HASH="$(get_hash "https://github.com/ThaUnknown/miru/releases/download/v${MIRU_LATEST_VER}/linux-Miru-${MIRU_LATEST_VER}.AppImage")"
+MIRU_DARWIN_HASH="$(get_hash "https://github.com/ThaUnknown/miru/releases/download/v${MIRU_LATEST_VER}/mac-Miru-${MIRU_LATEST_VER}-mac.zip")"
+
+replace_hash_in_file "$LINUX_NIX" "$MIRU_LINUX_HASH"
+replace_hash_in_file "$DARWIN_NIX" "$MIRU_DARWIN_HASH"
+
+replace_version_in_file "$PACKAGE_NIX" "$MIRU_LATEST_VER"