fix: untildify the installation path

package.json

@@ -44,6 +44,7 @@
     "hasha": "^5.2.2",
     "mri": "^1.2.0",
     "semver": "^7.3.5",
+    "untildify": "^4.0.0",
     "which": "^2.0.2"
   },
   "pnpm": {

pnpm-lock.yaml

@@ -32,6 +32,7 @@ importers:
       terser-config-atomic: ^0.1.1
       ts-jest: ^27.0.5
       typescript: ^4.4.3
+      untildify: ^4.0.0
       which: ^2.0.2
     dependencies:
       '@actions/core': 1.5.0
@@ -41,6 +42,7 @@ importers:
       hasha: 5.2.2
       mri: 1.2.0
       semver: 7.3.5
+      untildify: 4.0.0
       which: 2.0.2
     devDependencies:
       '@types/cross-spawn': 6.0.2
@@ -8431,6 +8433,11 @@ packages:
       isobject: 3.0.1
     dev: true
 
+  /untildify/4.0.0:
+    resolution: {integrity: sha512-KK8xQ1mkzZeg9inewmFVDNkg3l5LUhoq9kN6iWYB/CC9YMG8HA+c1Q8HwDe6dEX7kErrEVNVBO3fWsVq5iDgtw==}
+    engines: {node: '>=8'}
+    dev: false
+
   /uri-js/4.4.1:
     resolution: {integrity: sha512-7rKUyy33Q1yc98pQ1DAmLtwX109F7TIfWlW1Ydo8Wl1ii1SeHieeh0HHfPeL2fMXK6z0s8ecKs9frCuLJvndBg==}
     dependencies:

src/main.ts

@@ -14,6 +14,7 @@ import { setupNinja } from "./ninja/ninja"
 import { setupOpencppcoverage } from "./opencppcoverage/opencppcoverage"
 import { setupPython } from "./python/python"
 import mri from "mri"
+import untildify from "untildify"
 
 import semverValid from "semver/functions/valid"
 import { getVersion } from "./default_versions"
@@ -83,7 +84,7 @@ export async function main(args: string[]): Promise<number> {
   const arch = opts.architecture ?? process.arch
 
   // the installation dir for the tools that are downloaded directly
-  const setupCppDir = process.env.SETUP_CPP_DIR ?? "~/setup_cpp"
+  const setupCppDir = process.env.SETUP_CPP_DIR ?? untildify("~/setup_cpp")
 
   // report messages
   const successMessages: string[] = []