git: export useful functionality

In the upcoming commit, we will implement support for removing the SDK
files in a post-action step. To this end, we need access to Git for
Windows' `bash` (if it exists on the agent) and to the default location
of the SDK that is written by this Action. Let's export those to allow
for reusing the functionality in other source files.

Signed-off-by: Dennis Ameling <dennis@dennisameling.com>
Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>

Author: dennisameling

src/git.ts

@@ -4,7 +4,7 @@ import {Octokit} from '@octokit/rest'
 import {delimiter} from 'path'
 import * as fs from 'fs'
 
-const gitForWindowsUsrBinPath = 'C:/Program Files/Git/usr/bin'
+export const gitForWindowsUsrBinPath = 'C:/Program Files/Git/usr/bin'
 const gitExePath = 'C:/Program Files/Git/cmd/git.exe'
 
 /*
@@ -18,6 +18,17 @@ const gitExePath = 'C:/Program Files/Git/cmd/git.exe'
  */
 const GIT_CONFIG_PARAMETERS = `'checkout.workers=56'`
 
+export function getArtifactMetadata(
+  flavor: string,
+  architecture: string
+): {bitness: string; repo: string; artifactName: string} {
+  const bitness = architecture === 'i686' ? '32' : '64'
+  const repo = `git-sdk-${bitness}`
+  const artifactName = `${repo}-${flavor}`
+
+  return {bitness, repo, artifactName}
+}
+
 async function clone(
   url: string,
   destination: string,
@@ -65,10 +76,12 @@ export async function getViaGit(
     verbose?: number | boolean
   ) => Promise<void>
 }> {
-  const bitness = architecture === 'i686' ? '32' : '64'
   const owner = 'git-for-windows'
-  const repo = `git-sdk-${bitness}`
-  const artifactName = `${repo}-${flavor}`
+
+  const {bitness, repo, artifactName} = getArtifactMetadata(
+    flavor,
+    architecture
+  )
 
   const octokit = new Octokit()
   let head_sha: string