fix(scoop-bucket): Check for git before running command (#4756)

* fix(scoop-bucket): Check for git before running command

* Apply suggestions from code review

Co-authored-by: Hsiao-nan Cheung <niheaven@gmail.com>

* Update CHANGELOG.md

Co-authored-by: Hsiao-nan Cheung <niheaven@gmail.com>

CHANGELOG.md

@@ -34,6 +34,7 @@
 - **scoop-checkup:** Skip 'check_windows_defender' when have not admin privileges ([#4699](https://github.com/ScoopInstaller/Scoop/issues/4699))
 - **scoop-cleanup:** Remove apps other than current version ([#4665](https://github.com/ScoopInstaller/Scoop/issues/4665))
 - **scoop-update:** Skip updating non git buckets ([#4670](https://github.com/ScoopInstaller/Scoop/issues/4670), [#4672](https://github.com/ScoopInstaller/Scoop/issues/4672))
+- **scoop-bucket:** Check for git before running command ([#4756](https://github.com/ScoopInstaller/Scoop/issues/4756))
 
 ### Code Refactoring
 

libexec/scoop-bucket.ps1

@@ -38,11 +38,11 @@ function list_buckets {
             Measure-Object | Select-Object -ExpandProperty Count
         )
         $updated = 'N/A'
-        if (Test-Path (Join-Path $source '.git')) {
-            $updated = git -C "`"$source`"" log --date=format:"`"%Y-%m-%d %H:%M:%S`"" --format='%ad' -n 1
+        if ((Test-Path (Join-Path $source '.git')) -and (Get-Command git -ErrorAction SilentlyContinue)) {
+            $updated = git -C "`"$source`"" log --date=format:"`"%d-%m-%Y %H:%M:%S`"" --format='%ad' -n 1 | Get-Date
             $source = git -C "`"$source`"" config remote.origin.url
         } else {
-            $updated = (Get-Item "$source\bucket").LastWriteTime | Get-Date -Format 'yyyy-MM-dd HH:mm:ss'
+            $updated = (Get-Item "$source\bucket").LastWriteTime
             $source = friendly_path $source
         }
         $buckets += New-Object PSObject -Property @{