add support to `odinfmt.json` config for formatter.

6 files changed, 51 insertions, 34 deletions

diff --git a/src/common/config.odin b/src/common/config.odin
index d90e5fa..b4114c0 100644
--- a/src/common/config.odin
+++ b/src/common/config.odin
@@ -20,15 +20,8 @@ Config :: struct {
 	enable_std_references:    bool,
 	thread_count:             int,
 	file_log:                 bool,
-	formatter:                Format_Config,
 	odin_command:             string,
 	checker_args:             string,
 }
 
-Format_Config :: struct {
-	tabs: bool,
-	characters: int,
-	spaces: int,
-}
-
 config: Config;
\ No newline at end of file
diff --git a/src/odin/format/format.odin b/src/odin/format/format.odin
index 2abfbec..eee51b3 100644
--- a/src/odin/format/format.odin
+++ b/src/odin/format/format.odin
@@ -3,6 +3,10 @@ package odin_format
 import "shared:odin/printer"
 import "core:odin/parser"
 import "core:odin/ast"
+import "core:encoding/json"
+import "core:os" 
+import "core:path/filepath"
+import "core:fmt"
 
 default_style := printer.default_style
 
@@ -10,6 +14,41 @@ simplify :: proc(file: ^ast.File) {
 
 }
 
+find_config_file_or_default :: proc(path: string) -> printer.Config {
+	//go up the directory until we find odinfmt.json
+	path := path
+
+	ok: bool
+	if path, ok = filepath.abs(path); !ok {
+		return default_style
+	}
+
+	name := fmt.tprintf("%v/odinfmt.json", path)
+	found := false
+	config := default_style
+
+	if (os.exists(name)) {
+		if data, ok := os.read_entire_file(name, context.temp_allocator); ok {
+			if json.unmarshal(data, &config) == nil {
+				found = true
+			}
+		}
+	} else {
+		new_path := filepath.join(elems = {path, ".."}, allocator = context.temp_allocator)
+		//Currently the filepath implementation seems to stop at the root level, this might not be the best solution.
+		if new_path == path {
+			return default_style
+		}
+		return find_config_file_or_default(new_path)
+	}
+
+	if !found {
+		return default_style
+	}
+
+	return config
+}
+
 format :: proc(filepath: string, source: string, config: printer.Config, parser_flags := parser.Flags{.Optional_Semicolons}, allocator := context.allocator) -> (string, bool) {
 	config := config
 
diff --git a/src/odin/printer/printer.odin b/src/odin/printer/printer.odin
index c37e0fa..7c444a1 100644
--- a/src/odin/printer/printer.odin
+++ b/src/odin/printer/printer.odin
@@ -35,7 +35,7 @@ Disabled_Info :: struct {
 }
 
 Config :: struct {
-	max_characters:       int,
+	character_width:      int,
 	spaces:               int,  //Spaces per indentation
 	newline_limit:        int,  //The limit of newlines between statements and declarations.
 	tabs:                 bool, //Enable or disable tabs
@@ -91,7 +91,7 @@ when ODIN_OS ==  .Windows {
 		brace_style          = ._1TBS,
 		indent_cases         = false,
 		newline_style        = .CRLF,
-		max_characters       = 100,
+		character_width       = 100,
 	}
 } else {
 	default_style := Config {
@@ -103,7 +103,7 @@ when ODIN_OS ==  .Windows {
 		brace_style          = ._1TBS,
 		indent_cases         = false,
 		newline_style        = .LF,
-		max_characters       = 100,
+		character_width       = 100,
 	}
 }
 
@@ -167,7 +167,7 @@ print_expr :: proc(p: ^Printer, expr: ^ast.Expr) -> string {
 		indentation = 0,
 	})
 
-	format(p.config.max_characters, &list, &p.string_builder, p)
+	format(p.config.character_width, &list, &p.string_builder, p)
 
 	return strings.to_string(p.string_builder)
 }
@@ -220,7 +220,7 @@ print_file :: proc(p: ^Printer, file: ^ast.File) -> string {
 		indentation = 0,
 	})
 
-	format(p.config.max_characters, &list, &p.string_builder, p)
+	format(p.config.character_width, &list, &p.string_builder, p)
 
 	return strings.to_string(p.string_builder)
 }
diff --git a/src/server/format.odin b/src/server/format.odin
index 57243ff..236bee2 100644
--- a/src/server/format.odin
+++ b/src/server/format.odin
@@ -2,6 +2,8 @@ package server
 
 import "shared:common"
 import "shared:odin/printer"
+import "shared:odin/format"
+import "core:path/filepath"
 
 import "core:log"
 
@@ -19,19 +21,6 @@ DocumentFormattingParams :: struct {
 }
 
 get_complete_format :: proc(document: ^Document, config: ^common.Config) -> ([]TextEdit, bool) {
-	style := printer.default_style
-	style.tabs = config.formatter.tabs
-
-	if config.formatter.characters != 0 {
-		style.max_characters = config.formatter.characters
-	}
-
-	if config.formatter.spaces != 0 {
-		style.spaces = config.formatter.spaces
-	} 
-	
-	prnt := printer.make_printer(style, context.temp_allocator)
-
 	if document.ast.syntax_error_count > 0 {
 		return {}, true
 	}
@@ -40,6 +29,9 @@ get_complete_format :: proc(document: ^Document, config: ^common.Config) -> ([]T
 		return {}, true
 	}
 
+	style := format.find_config_file_or_default(filepath.dir(document.fullpath, context.temp_allocator))
+	prnt := printer.make_printer(style, context.temp_allocator)
+
 	src := printer.print(&prnt, &document.ast)
 
 	log.error(src)
diff --git a/src/server/requests.odin b/src/server/requests.odin
index b7774d5..d89263b 100644
--- a/src/server/requests.odin
+++ b/src/server/requests.odin
@@ -384,13 +384,8 @@ request_initialize :: proc (params: json.Value, id: RequestId, config: ^common.C
 	read_ols_config :: proc(file: string, config: ^common.Config, uri: common.Uri) {
 		if data, ok := os.read_entire_file(file, context.temp_allocator); ok {
 			if value, err := json.parse(data = data, allocator = context.temp_allocator, parse_integers = true); err == .None {
-				ols_config := OlsConfig {
-					formatter = {
-						characters = 90,
-						tabs = true,
-					},
-				}
-
+				ols_config: OlsConfig 
+				
 				if unmarshal(value, ols_config, context.temp_allocator) == nil {
 					config.thread_count = ols_config.thread_pool_count
 					config.enable_document_symbols = ols_config.enable_document_symbols
@@ -402,7 +397,6 @@ request_initialize :: proc (params: json.Value, id: RequestId, config: ^common.C
 					config.enable_references = false
 					config.verbose = ols_config.verbose
 					config.file_log = ols_config.file_log
-					config.formatter = ols_config.formatter
 					config.odin_command = strings.clone(ols_config.odin_command, context.allocator)
 					config.checker_args = ols_config.checker_args
 					config.enable_inlay_hints = ols_config.enable_inlay_hints
diff --git a/src/server/types.odin b/src/server/types.odin
index 78e7241..0c50ad5 100644
--- a/src/server/types.odin
+++ b/src/server/types.odin
@@ -329,7 +329,6 @@ OlsConfig :: struct {
 	enable_inlay_hints:       bool,
 	verbose:                  bool,
 	file_log:                 bool,
-	formatter:                common.Format_Config,
 	odin_command:             string,
 	checker_args:             string,
 }