Enhance sqlpath.Glob to actually support glob wildcard

internal/sql/sqlpath/read.go

@@ -9,14 +9,33 @@ import (
 	"github.com/sqlc-dev/sqlc/internal/migrations"
 )
 
-// Return a list of SQL files in the listed paths. Only includes files ending
-// in .sql. Omits hidden files, directories, and migrations.
-func Glob(paths []string) ([]string, error) {
-	var files []string
+// Return a list of SQL files in the listed paths.
+//
+// Only includes files ending in .sql. Omits hidden files, directories, and
+// down migrations.
+
+// If a path contains *, ?, [, or ], treat the path as a pattern and expand it
+// filepath.Glob.
+func Glob(patterns []string) ([]string, error) {
+	var files, paths []string
+	for _, pattern := range patterns {
+		if strings.ContainsAny(pattern, "*?[]") {
+			matches, err := filepath.Glob(pattern)
+			if err != nil {
+				return nil, err
+			}
+			// if len(matches) == 0 {
+			// 	slog.Warn("zero files matched", "pattern", pattern)
+			// }
+			paths = append(paths, matches...)
+		} else {
+			paths = append(paths, pattern)
+		}
+	}
 	for _, path := range paths {
 		f, err := os.Stat(path)
 		if err != nil {
-			return nil, fmt.Errorf("path %s does not exist", path)
+			return nil, fmt.Errorf("path error: %w", err)
 		}
 		if f.IsDir() {
 			listing, err := os.ReadDir(path)

internal/sql/sqlpath/read_test.go

@@ -0,0 +1,208 @@
+package sqlpath
+
+import (
+	"fmt"
+	"testing"
+
+	"github.com/google/go-cmp/cmp"
+)
+
+// Returns a list of SQL files from given paths.
+func TestReturnsListOfSQLFiles(t *testing.T) {
+	// Arrange
+	paths := []string{"testdata/file1.sql", "testdata/file2.sql"}
+
+	// Act
+	result, err := Glob(paths)
+
+	// Assert
+	expected := []string{"testdata/file1.sql", "testdata/file2.sql"}
+	if !cmp.Equal(result, expected) {
+		t.Errorf("Expected %v, but got %v, %v", expected, result, cmp.Diff(expected, result))
+	}
+	if err != nil {
+		t.Errorf("Expected no error, but got %v", err)
+	}
+}
+
+func TestReturnsNilListWhenNoSQLFilesFound(t *testing.T) {
+	// Arrange
+	paths := []string{"testdata/extra.txt"}
+
+	// Act
+	result, err := Glob(paths)
+	// Assert
+	var expected []string
+	if !cmp.Equal(result, expected) {
+		t.Errorf("Expected %v, but got %v, %v", expected, result, cmp.Diff(expected, result))
+	}
+	if err != nil {
+		t.Errorf("Expected no error, but got %v", err)
+	}
+}
+
+func TestIgnoresHiddenFilesWhenSearchingForSQLFiles(t *testing.T) {
+	// Arrange
+	paths := []string{"testdata/.hidden.sql"}
+
+	// Act
+	result, err := Glob(paths)
+
+	// Assert
+	var expected []string
+	if !cmp.Equal(result, expected) {
+		t.Errorf("Expected %v, but got %v", expected, result)
+	}
+	if err != nil {
+		t.Errorf("Expected no error, but got %v", err)
+	}
+}
+
+func TestIgnoresNonSQLFilesWhenSearchingForSQLFiles(t *testing.T) {
+	// Arrange
+	paths := []string{"testdata/extra.txt"}
+
+	// Act
+	result, err := Glob(paths)
+
+	// Assert
+	var expected []string
+	if !cmp.Equal(result, expected) {
+		t.Errorf("Expected %v, but got %v", expected, result)
+	}
+	if err != nil {
+		t.Errorf("Expected no error, but got %v", err)
+	}
+}
+
+func TestExcludesSQLFilesEndingWithDownSQLWhenSearchingForSQLFiles(t *testing.T) {
+	// Arrange
+	paths := []string{"testdata/file1.sql", "testdata/file3.down.sql"}
+
+	// Act
+	result, err := Glob(paths)
+
+	// Assert
+	expected := []string{"testdata/file1.sql"}
+	if !cmp.Equal(result, expected) {
+		t.Errorf("Expected %v, but got %v", expected, result)
+	}
+	if err != nil {
+		t.Errorf("Expected no error, but got %v", err)
+	}
+}
+
+func TestReturnsErrorWhenPathDoesNotExist(t *testing.T) {
+	// Arrange
+	paths := []string{"non_existent_path"}
+
+	// Act
+	result, err := Glob(paths)
+
+	// Assert
+	var expected []string
+	if !cmp.Equal(result, expected) {
+		t.Errorf("Expected %v, but got %v", expected, result)
+	}
+	if err == nil {
+		t.Errorf("Expected an error, but got nil")
+	} else {
+		expectedError := fmt.Errorf("path error: stat non_existent_path: no such file or directory")
+		if !cmp.Equal(err.Error(), expectedError.Error()) {
+			t.Errorf("Expected error %v, but got %v", expectedError, err)
+		}
+	}
+}
+
+func TestReturnsErrorWhenDirectoryCannotBeRead(t *testing.T) {
+	// Arrange
+	paths := []string{"testdata/unreadable"}
+
+	// Act
+	result, err := Glob(paths)
+
+	// Assert
+	var expected []string
+	if !cmp.Equal(result, expected) {
+		t.Errorf("Expected %v, but got %v", expected, result)
+	}
+	if err == nil {
+		t.Errorf("Expected an error, but got nil")
+	} else {
+		expectedError := fmt.Errorf("path error: stat testdata/unreadable: no such file or directory")
+		if !cmp.Equal(err.Error(), expectedError.Error()) {
+			t.Errorf("Expected error %v, but got %v", expectedError, err)
+		}
+	}
+}
+
+func TestDoesNotIncludesSQLFilesWithUppercaseExtension(t *testing.T) {
+	// Arrange
+	paths := []string{"testdata/file4.SQL"}
+
+	// Act
+	result, err := Glob(paths)
+
+	// Assert
+	var expected []string
+	if !cmp.Equal(result, expected) {
+		t.Errorf("Expected %v, but got %v", expected, result)
+	}
+	if err != nil {
+		t.Errorf("Expected no error, but got %v", err)
+	}
+}
+
+func TestNotIncludesHiddenFilesAnyPath(t *testing.T) {
+	// Arrange
+	paths := []string{
+		"./testdata/.hiddendir/file1.sql", // pass
+		"./testdata/.hidden.sql",          // skip
+	}
+
+	// Act
+	result, err := Glob(paths)
+
+	// Assert
+	expectedAny := [][]string{
+		{"./testdata/.hiddendir/file1.sql"},
+		{"testdata/.hiddendir/file1.sql"},
+	}
+
+	match := false
+	for _, expected := range expectedAny {
+		if cmp.Equal(result, expected) {
+			match = true
+			break
+		}
+	}
+	if !match {
+		t.Errorf("Expected any of %v, but got %v", expectedAny, result)
+	}
+
+	if err != nil {
+		t.Errorf("Expected no error, but got %v", err)
+	}
+}
+
+func TestFollowSymlinks(t *testing.T) {
+	// Arrange
+	paths := []string{"testdata/symlink", "testdata/file1.symlink.sql"}
+
+	// Act
+	result, err := Glob(paths)
+
+	// Assert
+	expected := []string{
+		"testdata/symlink/file1.sql",
+		"testdata/symlink/file1.symlink.sql",
+		"testdata/symlink/file2.sql",
+		"testdata/file1.symlink.sql",
+	}
+	if !cmp.Equal(result, expected) {
+		t.Errorf("Expected %v, but got %v", expected, result)
+	}
+	if err != nil {
+		t.Errorf("Expected no error, but got %v", err)
+	}
+}

internal/sql/sqlpath/testdata/file1.symlink.sql

@@ -0,0 +1 @@
+./file1.sql

internal/sql/sqlpath/testdata/symlink

@@ -0,0 +1 @@
+.