Support fetching without the --progress option (#1067)

Setting the `show-progress` option to false in the `with` section of the
workflow step will cause git fetch to run without `--progress`.

The motivation is to be able to suppress the noisy progress status
output which adds many hundreds of "remote: Counting objects: 85%
(386/453)" and similar lines in the workflow log.

This should be sufficient to resolve #894 and its older friends,
though the solution is different to the one proposed there because
it doesn't use the --quiet flag. IIUC git doesn't show the progress
status by default since the output is not a terminal, so that's why
removing the --progress option is all that's needed.

Adding the --quiet flag doesn't make a lot of difference once the
--progress flag is removed, and actually I think using --quiet would
suppress some other more useful output that would be better left
visible.

Signed-off-by: Simon Baird <sbaird@redhat.com>

src/git-command-manager.ts

@@ -34,6 +34,7 @@ export interface IGitCommandManager {
       filter?: string
       fetchDepth?: number
       fetchTags?: boolean
+      showProgress?: boolean
     }
   ): Promise<void>
   getDefaultBranch(repositoryUrl: string): Promise<string>
@@ -241,14 +242,22 @@ class GitCommandManager {
 
   async fetch(
     refSpec: string[],
-    options: {filter?: string; fetchDepth?: number; fetchTags?: boolean}
+    options: {
+      filter?: string
+      fetchDepth?: number
+      fetchTags?: boolean
+      showProgress?: boolean
+    }
   ): Promise<void> {
     const args = ['-c', 'protocol.version=2', 'fetch']
     if (!refSpec.some(x => x === refHelper.tagsRefSpec) && !options.fetchTags) {
       args.push('--no-tags')
     }
 
-    args.push('--prune', '--progress', '--no-recurse-submodules')
+    args.push('--prune', '--no-recurse-submodules')
+    if (options.showProgress) {
+      args.push('--progress')
+    }
 
     if (options.filter) {
       args.push(`--filter=${options.filter}`)