From 48a1d9d54e62edc1c41ca5f69e1289e0ddee75a3 Mon Sep 17 00:00:00 2001
From: Joseph Kato <joseph@jdkato.io>
Date: Mon, 8 Apr 2024 03:55:40 -0700
Subject: [PATCH] fix: fallback to default config when syncing

#798
---
 cmd/vale/command.go          |  8 +++++---
 internal/core/config.go      | 20 +++++++++++++++++++-
 internal/core/source.go      |  2 +-
 internal/core/source_test.go |  2 +-
 4 files changed, 26 insertions(+), 6 deletions(-)

diff --git a/cmd/vale/command.go b/cmd/vale/command.go
index baff05e8..b61278c1 100644
--- a/cmd/vale/command.go
+++ b/cmd/vale/command.go
@@ -93,9 +93,11 @@ func sync(_ []string, flags *core.CLIFlags) error {
 		return err
 	}
 
-	// NOTE: sync should *only* run for a single config file. In practice, this
-	// means that we sync only using the local search process.
-	rootINI := cfg.ConfigFiles[0]
+	// NOTE: sync should *only* run for a single config file.
+	rootINI, noRoot := cfg.Root()
+	if noRoot != nil {
+		return core.NewE100("sync", noRoot)
+	}
 
 	pkgs, err := core.GetPackages(rootINI)
 	if err != nil {
diff --git a/internal/core/config.go b/internal/core/config.go
index 85d0fc3b..6faecdb6 100644
--- a/internal/core/config.go
+++ b/internal/core/config.go
@@ -257,7 +257,7 @@ func (c *Config) AddStylesPath(path string) {
 
 // ConfigFile returns the last configuration file in the list.
 //
-// This represents the user's project-specific configuration file -- i.e., the
+// This represents the user's project-agnostic configuration file -- i.e., the
 // last one that was added.
 func (c *Config) ConfigFile() string {
 	if len(c.ConfigFiles) > 0 {
@@ -266,6 +266,24 @@ func (c *Config) ConfigFile() string {
 	return ""
 }
 
+// Root returns the first configuration file in the list.
+func (c *Config) Root() (string, error) {
+	if len(c.ConfigFiles) > 0 {
+		return c.ConfigFiles[0], nil
+	}
+
+	root, err := DefaultConfig()
+	if err != nil {
+		return "", err
+	}
+
+	if !FileExists(root) {
+		return "", fmt.Errorf("no .vale.ini file found")
+	}
+
+	return root, nil
+}
+
 // GetStylesPath returns the last path in the list.
 //
 // This represents the user's project-specific styles directory -- i.e., the
diff --git a/internal/core/source.go b/internal/core/source.go
index f18c9a7e..7c76c362 100644
--- a/internal/core/source.go
+++ b/internal/core/source.go
@@ -174,7 +174,7 @@ func loadINI(cfg *Config, dry bool) (*ini.File, error) {
 		}
 		cfg.Flags.Local = true
 		cfg.AddConfigFile(defaultCfg)
-	} else if base == "" && len(cfg.ConfigFiles) == 0 {
+	} else if base == "" && len(cfg.ConfigFiles) == 0 && !dry {
 		return nil, NewE100(".vale.ini not found", errors.New("no config file found"))
 	}
 
diff --git a/internal/core/source_test.go b/internal/core/source_test.go
index e15690dc..c43424c5 100644
--- a/internal/core/source_test.go
+++ b/internal/core/source_test.go
@@ -26,7 +26,7 @@ func TestNoBaseConfig(t *testing.T) {
 		t.Fatal(err)
 	}
 
-	_, err = FromFile(cfg, true)
+	_, err = FromFile(cfg, false)
 	if err == nil {
 		t.Fatal("Expected error, got nil", cfg.ConfigFiles)
 	}