Move bin path, in Windows, from D: to C: (#251)

src/setup-beam.js

@@ -135,7 +135,6 @@ async function maybeInstallGleam(gleamSpec) {
     core.startGroup(`Installing Gleam ${gleamVersion}`)
     await install('gleam', { toolVersion: gleamVersion })
     core.setOutput('gleam-version', gleamVersion)
-    core.addPath(`${process.env.RUNNER_TEMP}/.setup-beam/gleam/bin`)
     core.endGroup()
 
     installed = true
@@ -156,7 +155,6 @@ async function maybeInstallRebar3(rebar3Spec) {
     core.startGroup(`Installing rebar3 ${rebar3Version}`)
     await install('rebar3', { toolVersion: rebar3Version })
     core.setOutput('rebar3-version', rebar3Version)
-    core.addPath(`${process.env.RUNNER_TEMP}/.setup-beam/rebar3/bin`)
     core.endGroup()
 
     installed = true
@@ -954,16 +952,25 @@ async function installTool(opts) {
     core.debug(`  ... it is, at ${cachePath}`)
   }
 
-  core.debug('Performing post extract operations...')
-  await platformOpts.postExtract(cachePath)
+  // This makes sure we run, e.g. in Windows, the installer in the runner
+  // We're not caching the install, just the downloaded tool
+  const runnerToolPath = path.join(
+    process.env.RUNNER_TEMP,
+    '.setup-beam',
+    toolName,
+  )
+  fs.cpSync(cachePath, runnerToolPath, { recursive: true })
 
-  core.debug(`Adding ${cachePath}'s bin to system path`)
-  const catchPathBin = path.join(cachePath, 'bin')
-  core.addPath(catchPathBin)
+  core.debug('Performing post extract operations...')
+  await platformOpts.postExtract(runnerToolPath)
+
+  core.debug(`Adding ${runnerToolPath}' bin to system path`)
+  const runnerToolPathBin = path.join(runnerToolPath, 'bin')
+  core.addPath(runnerToolPathBin)
 
   const installDirForVarName = `INSTALL_DIR_FOR_${toolName}`.toUpperCase()
-  core.debug(`Exporting ${installDirForVarName} as ${catchPathBin}`)
-  core.exportVariable(installDirForVarName, catchPathBin)
+  core.debug(`Exporting ${installDirForVarName} as ${runnerToolPath}`)
+  core.exportVariable(installDirForVarName, runnerToolPath)
 
   core.info(`Installed ${installOpts.tool} version`)
   const [cmd, args] = platformOpts.reportVersion()