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package odinfmt
import "core:encoding/json"
import "core:flags"
import "core:fmt"
import "core:io"
import "core:mem"
import vmem "core:mem/virtual"
import "core:odin/tokenizer"
import "core:os"
import "core:path/filepath"
import "core:strings"
import "core:time"
import "src:odin/format"
import "src:odin/printer"
Args :: struct {
write: bool `args:"name=w" usage:"write the new format to file"`,
stdin: bool `usage:"formats code from standard input"`,
path: string `args:"pos=0" usage:"set the file or directory to format"`,
config: string `usage:"path to a config file"`
}
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.Error, skip_dir: bool) {
if info.is_dir {
return nil, false
}
if filepath.ext(info.name) != ".odin" {
return nil, false
}
append(&files, strings.clone(info.fullpath))
return nil, false
}
main :: proc() {
arena: vmem.Arena
arena_err := vmem.arena_init_growing(&arena)
ensure(arena_err == nil)
arena_allocator := vmem.arena_allocator(&arena)
init_global_temporary_allocator(mem.Megabyte * 20) //enough space for the walk
args: Args
flags.parse_or_exit(&args, os.args)
// only allow the path to not be specified when formatting from stdin
if args.path == "" {
if args.stdin {
// use current directory as the starting path to look for `odinfmt.json`
args.path = "."
} else {
fmt.fprint(os.stderr, "Missing path to format\n")
flags.write_usage(os.stream_from_handle(os.stderr), Args, os.args[0])
os.exit(1)
}
}
tick_time := time.tick_now()
write_failure := false
watermark : uint = 0
config: printer.Config
if args.config == "" {
config = format.find_config_file_or_default(args.path)
} else {
config = format.read_config_file_from_path_or_default(args.config)
}
if args.stdin {
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(args.path) {
if args.write {
backup_path := strings.concatenate({args.path, "_bk"})
defer delete(backup_path)
if data, ok := format_file(args.path, config, arena_allocator); ok {
os.rename(args.path, backup_path)
if os.write_entire_file(args.path, transmute([]byte)data) {
os.remove(backup_path)
}
} else {
fmt.eprintf("Failed to write %v", args.path)
write_failure = true
}
} else {
if data, ok := format_file(args.path, config, arena_allocator); ok {
fmt.println(data)
}
}
} else if os.is_dir(args.path) {
filepath.walk(args.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 args.write {
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.total_used)
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", args.path)
os.exit(1)
}
os.exit(1 if write_failure else 0)
}
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