Only match with viper config if it was read (#3860)

Fix a regression introduced in 1ba103523ae. The `matchFromConfig` block should only be entered if we read config from viper.

---

#### Does this PR need a docs update or release note?

- [x] ✅ Yes, it's included
- [ ] 🕐 Yes, but in a later PR
- [ ] ⛔ No

#### Type of change

<!--- Please check the type of change your PR introduces: --->
- [ ] 🌻 Feature
- [x] 🐛 Bugfix
- [ ] 🗺️ Documentation
- [ ] 🤖 Supportability/Tests
- [ ] 💻 CI/Deployment
- [ ] 🧹 Tech Debt/Cleanup

#### Issue(s)

<!-- Can reference multiple issues. Use one of the following "magic words" - "closes, fixes" to auto-close the Github issue. -->
* #3856 

#### Test Plan

<!-- How will this be tested prior to merging.-->
- [ ] 💪 Manual
- [ ] ⚡ Unit test
- [x] 💚 E2E

CHANGELOG.md

@@ -7,12 +7,16 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased] (beta)
 
+### Fixed
+- Allow repo connect to succeed when a `corso.toml` file was not provided but configuration is specified using environment variables and flags.
+
 ## [v0.11.0] (beta) - 2023-07-18
 
 ### Added
 - Drive items backup and restore link shares
 - Restore commands now accept an optional top-level restore destination with the `--destination` flag.  Setting the destination to '/' will restore items back into their original location.  
 - Restore commands can specify item collision behavior.  Options are Skip (default), Replace, and Copy.
+- Introduced repository maintenance commands to help optimize the repository as well as unreferenced data.
 
 ### Fixed
 - Return a ServiceNotEnabled error when a tenant has no active SharePoint license.

src/cli/config/account.go

@@ -50,7 +50,6 @@ func configureAccount(
 		if err != nil {
 			return acct, clues.Wrap(err, "reading m365 configs from corso config file")
 		}
-	}
 
 		if matchFromConfig {
 			providerType := vpr.GetString(AccountProviderTypeKey)
@@ -62,6 +61,7 @@ func configureAccount(
 				return acct, clues.Wrap(err, "verifying m365 configs in corso config file")
 			}
 		}
+	}
 
 	// compose the m365 config and credentials
 	m365 = GetM365(m365Cfg)

src/cli/config/config_test.go

@@ -450,7 +450,7 @@ func (suite *ConfigIntegrationSuite) TestGetStorageAndAccount_noFileOnlyOverride
 		StorageProviderTypeKey: storage.ProviderS3.String(),
 	}
 
-	cfg, err := getStorageAndAccountWithViper(vpr, false, false, overrides)
+	cfg, err := getStorageAndAccountWithViper(vpr, false, true, overrides)
 	require.NoError(t, err, "getting storage and account from config", clues.ToCore(err))
 
 	readS3Cfg, err := cfg.Storage.S3Config()

src/cli/config/storage.go

@@ -75,7 +75,6 @@ func configureStorage(
 		if p, ok := overrides[storage.Prefix]; ok {
 			overrides[storage.Prefix] = common.NormalizePrefix(p)
 		}
-	}
 
 		if matchFromConfig {
 			providerType := vpr.GetString(StorageProviderTypeKey)
@@ -87,6 +86,7 @@ func configureStorage(
 				return store, clues.Wrap(err, "verifying s3 configs in corso config file")
 			}
 		}
+	}
 
 	if s3Cfg, err = s3CredsFromViper(vpr, s3Cfg); err != nil {
 		return store, clues.Wrap(err, "reading s3 configs from corso config file")