From 9d3e9abebfbd6797ee04621d8a9841b500e3cdbc Mon Sep 17 00:00:00 2001
From: Christopher Monsanto <chris@monsan.to>
Date: Wed, 5 Apr 2023 00:40:07 -0400
Subject: [PATCH] deploy: add basic hash support so we can Just Ship It

---
 pnpm-lock.yaml            | 14 ++++++++++++++
 smogon.deploy.js          |  8 +++++---
 tools/deploy/package.json |  1 +
 tools/deploy/script.ts    | 15 ++++++++++++++-
 4 files changed, 34 insertions(+), 4 deletions(-)

diff --git a/pnpm-lock.yaml b/pnpm-lock.yaml
index 2dfedf78..5652ec0c 100644
--- a/pnpm-lock.yaml
+++ b/pnpm-lock.yaml
@@ -30,6 +30,7 @@ importers:
   tools/deploy:
     specifiers:
       '@types/tar-stream': ^2.2.2
+      base32-encode: ^2.0.0
       commander: ^5.1.0
       debug: ^4.1.1
       expect: ^26.4.1
@@ -37,6 +38,7 @@ importers:
       tar-stream: ^3.0.0
     dependencies:
       '@types/tar-stream': 2.2.2
+      base32-encode: 2.0.0
       commander: 5.1.0
       debug: 4.1.1
       tar-stream: 3.0.0
@@ -321,6 +323,13 @@ packages:
     resolution: {integrity: sha1-ibTRmasr7kneFk6gK4nORi1xt2c=}
     dev: true
 
+  /base32-encode/2.0.0:
+    resolution: {integrity: sha512-mlmkfc2WqdDtMl/id4qm3A7RjW6jxcbAoMjdRmsPiwQP0ufD4oXItYMnPgVHe80lnAIy+1xwzhHE1s4FoIceSw==}
+    engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
+    dependencies:
+      to-data-view: 2.0.0
+    dev: false
+
   /base64-js/1.3.1:
     resolution: {integrity: sha512-mLQ4i2QO1ytvGWFWmcngKO//JXAQueZvwEKtjgQFM4jIK0kU+ytMfplL8j+n5mspOfjHwoAg+9yhb7BwAHm36g==}
     dev: false
@@ -1991,6 +2000,11 @@ packages:
       xtend: 4.0.2
     dev: false
 
+  /to-data-view/2.0.0:
+    resolution: {integrity: sha512-RGEM5KqlPHr+WVTPmGNAXNeFEmsBnlkxXaIfEpUYV0AST2Z5W1EGq9L/MENFrMMmL2WQr1wjkmZy/M92eKhjYA==}
+    engines: {node: ^12.20.0 || ^14.13.1 || >=16.0.0}
+    dev: false
+
   /to-regex-range/5.0.1:
     resolution: {integrity: sha512-65P7iz6X5yEr1cwcgvQxbbIw7Uk3gOy5dIdtZ4rDveLqhrdJP+Li/Hx6tyK0NEb+2GCyneCMJiGqrADCSNk8sQ==}
     engines: {node: '>=8.0'}
diff --git a/smogon.deploy.js b/smogon.deploy.js
index ce47ecaf..f4ea942b 100644
--- a/smogon.deploy.js
+++ b/smogon.deploy.js
@@ -17,7 +17,7 @@ function spritecopy(f, {dir, ext}) {
     if (sn.extra.has("a") || sn.extra.has("b") || sn.extra.has("s")) {
         return;
     }
-    
+
     if (sn.extension) {
         // Skip this, we don't use Unknown/Substitute
         return;
@@ -34,7 +34,7 @@ function spritecopy(f, {dir, ext}) {
     if (sn.extra.has("g")) {
         name += "-gmax";
     }
-    
+
     copy(f, {dir, ext, name});
 }
 
@@ -82,9 +82,11 @@ for (const f of list("build/item-minisprites-trimmed")) {
     itemspritecopy(f, {dir: "xyitems"});
 }
 
+let h = hash(...list("build/smogon/minisprites"));
 for (const f of list("build/smogon/minisprites")) {
-    newspritecopy(f, {dir: "minisprites"});
+    newspritecopy(f, {dir: "minisprites/" + h});
 }
+write("minisprites/hash.txt", h);
 
 for (const f of list("build/item-minisprites-padded")) {
     itemspritecopy(f, {dir: "forumsprites"});
diff --git a/tools/deploy/package.json b/tools/deploy/package.json
index 1a2c09ed..55a78152 100644
--- a/tools/deploy/package.json
+++ b/tools/deploy/package.json
@@ -1,6 +1,7 @@
 {
     "dependencies": {
         "@types/tar-stream": "^2.2.2",
+        "base32-encode": "^2.0.0",
         "commander": "^5.1.0",
         "debug": "^4.1.1",
         "tar-stream": "^3.0.0"
diff --git a/tools/deploy/script.ts b/tools/deploy/script.ts
index a7beee19..224916c5 100644
--- a/tools/deploy/script.ts
+++ b/tools/deploy/script.ts
@@ -5,7 +5,8 @@ import vm from 'vm';
 import * as pathlib from './path.js';
 import * as spritedata from '@smogon/sprite-data';
 import tar from 'tar-stream';
-
+import crypto from 'crypto';
+import b32encode from 'base32-encode';
 
 type Op = {
     type : 'Write',
@@ -240,6 +241,18 @@ function makeEnv2(srcDir : string, queue: ActionQueue) {
             return fs.readFileSync(nodePath.join(srcDir, src), 'utf8');
         },
 
+        hash(...srcps : pathlib.PathLike[]) : string {
+            let hash = crypto.createHash("sha256");
+            let srcs = srcps.map(srcp => pathlib.format(pathlib.path(srcp))).sort();
+            for (let src of srcs) {
+                let data = fs.readFileSync(nodePath.join(srcDir, src));
+                hash.update(data);
+            }
+            let buffer = hash.digest()
+            // Similar to esbuild?
+            return b32encode(buffer, 'RFC4648').slice(0, 8);
+        },
+
         write(dstp : pathlib.PathLike, data : string) {
             const dst = pathlib.format(pathlib.path(dstp));
             queue.write(data, dst);