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package odinfmt
import "core:os"
import "core:odin/tokenizer"
import "shared:odin/printer"
import "shared:odin/format"
import "core:fmt"
import "core:strings"
import "core:path/filepath"
import "core:time"
import "core:mem"
import "core:encoding/json"
import "flag"
Args :: struct {
write: Maybe(bool) `flag:"w" usage:"write the new format to file"`,
stdin: Maybe(bool) `flag:"stdin" usage:"formats code from standard input"`,
}
print_help :: proc(args: []string) {
fmt.eprintln("usage: odinfmt [-w {filepath}] [-stdin]")
}
print_arg_error :: proc(args: []string, error: flag.Flag_Error) {
switch error {
case .None:
print_help(args)
case .No_Base_Struct:
fmt.eprintln(args[0], "no base struct")
case .Arg_Error:
fmt.eprintln(args[0], "argument error")
case .Arg_Unsupported_Field_Type:
fmt.eprintln(args[0], "argument: unsupported field type")
case .Arg_Not_Defined:
fmt.eprintln(args[0], "argument: no defined")
case .Arg_Non_Optional:
fmt.eprintln(args[0], "argument: non optional")
case .Value_Parse_Error:
fmt.eprintln(args[0], "argument: value parse error")
case .Tag_Error:
fmt.eprintln(args[0], "argument: tag error")
}
}
format_file :: proc(
filepath: string,
config: printer.Config,
allocator := context.allocator,
) -> (
string,
bool,
) {
if data, ok := os.read_entire_file(filepath, allocator); ok {
return format.format(
filepath,
string(data),
config,
{.Optional_Semicolons},
allocator,
)
} else {
return "", false
}
}
files: [dynamic]string
walk_files :: proc(
info: os.File_Info,
in_err: os.Errno,
user_data: rawptr,
) -> (
err: os.Errno,
skip_dir: bool,
) {
if info.is_dir {
return 0, false
}
if filepath.ext(info.name) != ".odin" {
return 0, false
}
append(&files, strings.clone(info.fullpath))
return 0, false
}
main :: proc() {
arena: mem.Arena
mem.arena_init(&arena, make([]byte, 50 * mem.Megabyte))
arena_allocator := mem.arena_allocator(&arena)
init_global_temporary_allocator(mem.Megabyte * 20) //enough space for the walk
args: Args
if len(os.args) < 2 {
print_help(os.args)
os.exit(1)
}
if res := flag.parse(args, os.args[1:len(os.args) - 1]); res != .None {
print_arg_error(os.args, res)
os.exit(1)
}
path := os.args[len(os.args) - 1]
tick_time := time.tick_now()
write_failure := false
watermark := 0
config := format.find_config_file_or_default(path)
if _, ok := args.stdin.(bool); ok {
data := make([dynamic]byte, arena_allocator)
for {
tmp: [mem.Kilobyte]byte
r, err := os.read(os.stdin, tmp[:])
if err != os.ERROR_NONE || r <= 0 do break
append(&data, ..tmp[:r])
}
source, ok := format.format(
"<stdin>",
string(data[:]),
config,
{.Optional_Semicolons},
arena_allocator,
)
if ok {
fmt.println(source)
}
write_failure = !ok
} else if os.is_file(path) {
if _, ok := args.write.(bool); ok {
backup_path := strings.concatenate({path, "_bk"})
defer delete(backup_path)
if data, ok := format_file(path, config, arena_allocator); ok {
os.rename(path, backup_path)
if os.write_entire_file(path, transmute([]byte)data) {
os.remove(backup_path)
}
} else {
fmt.eprintf("Failed to write %v", path)
write_failure = true
}
} else {
if data, ok := format_file(path, config, arena_allocator); ok {
fmt.println(data)
}
}
} else if os.is_dir(path) {
filepath.walk(path, walk_files, nil)
for file in files {
fmt.println(file)
backup_path := strings.concatenate({file, "_bk"})
defer delete(backup_path)
if data, ok := format_file(file, config, arena_allocator); ok {
if _, ok := args.write.(bool); ok {
os.rename(file, backup_path)
if os.write_entire_file(file, transmute([]byte)data) {
os.remove(backup_path)
}
} else {
fmt.println(data)
}
} else {
fmt.eprintf("Failed to format %v", file)
write_failure = true
}
watermark = max(watermark, arena.offset)
free_all(arena_allocator)
}
fmt.printf(
"Formatted %v files in %vms \n",
len(files),
time.duration_milliseconds(time.tick_lap_time(&tick_time)),
)
fmt.printf("Peak memory used: %v \n", watermark / mem.Megabyte)
} else {
fmt.eprintf("%v is neither a directory nor a file \n", path)
os.exit(1)
}
os.exit(1 if write_failure else 0)
}
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