From e50d181a0d19ceac6c9eb78664deea5bcccfbd67 Mon Sep 17 00:00:00 2001
From: Tsu-ba-me <ynho.li.aa.e@gmail.com>
Date: Fri, 13 May 2022 22:18:07 -0400
Subject: [PATCH] fix(striker-ui-api): build OS list once on server load

---
 striker-ui-api/src/lib/consts/OS_LIST.ts      | 26 +++++++++++++++++++
 .../anvil/buildQueryAnvilDetail.ts            | 13 ++--------
 2 files changed, 28 insertions(+), 11 deletions(-)
 create mode 100644 striker-ui-api/src/lib/consts/OS_LIST.ts

diff --git a/striker-ui-api/src/lib/consts/OS_LIST.ts b/striker-ui-api/src/lib/consts/OS_LIST.ts
new file mode 100644
index 00000000..6cea3615
--- /dev/null
+++ b/striker-ui-api/src/lib/consts/OS_LIST.ts
@@ -0,0 +1,26 @@
+import { execSync } from 'child_process';
+
+import SERVER_PATHS from './SERVER_PATHS';
+
+type OSKeyMapToName = Record<string, string>;
+
+const osList: string[] = execSync(
+  `${SERVER_PATHS.usr.sbin['striker-parse-os-list'].self} | ${SERVER_PATHS.usr.bin['sed'].self} -E 's/^.*name="os_list_([^"]+).*CDATA[[]([^]]+).*$/\\1,\\2/'`,
+  {
+    encoding: 'utf-8',
+    timeout: 10000,
+  },
+).split('\n');
+
+osList.pop();
+
+const osKeyMapToName: OSKeyMapToName = osList.reduce((map, csv) => {
+  const [osKey, osName] = csv.split(',', 2);
+
+  map[osKey] = osName;
+
+  return map;
+}, {} as OSKeyMapToName);
+
+export const OS_LIST: Readonly<string[]> = osList;
+export const OS_LIST_MAP: Readonly<OSKeyMapToName> = osKeyMapToName;
diff --git a/striker-ui-api/src/lib/request_handlers/anvil/buildQueryAnvilDetail.ts b/striker-ui-api/src/lib/request_handlers/anvil/buildQueryAnvilDetail.ts
index e10cd269..e4329107 100644
--- a/striker-ui-api/src/lib/request_handlers/anvil/buildQueryAnvilDetail.ts
+++ b/striker-ui-api/src/lib/request_handlers/anvil/buildQueryAnvilDetail.ts
@@ -1,7 +1,5 @@
-import { execSync } from 'child_process';
-
 import NODE_AND_DR_RESERVED_MEMORY_SIZE from '../../consts/NODE_AND_DR_RESERVED_MEMORY_SIZE';
-import SERVER_PATHS from '../../consts/SERVER_PATHS';
+import { OS_LIST } from '../../consts/OS_LIST';
 
 import join from '../../join';
 import { sanitizeSQLParam } from '../../sanitizeSQLParam';
@@ -309,16 +307,9 @@ const buildQueryAnvilDetail = ({
           [],
         );
 
-        const osList = execSync(
-          `${SERVER_PATHS.usr.sbin['striker-parse-os-list'].self} | ${SERVER_PATHS.usr.bin['sed'].self} -E 's/^.*name="os_list_([^"]+).*CDATA[[]([^]]+).*$/\\1,\\2/'`,
-          { encoding: 'utf-8', timeout: 10000 },
-        ).split('\n');
-
-        osList.pop();
-
         results = {
           anvils,
-          osList,
+          osList: OS_LIST,
         };
       }