perf!: Removed support for JSON formatted remotes.

BREAKING CHANGE: Databases with a JSON formatted remotes column will no
longer parse correctly. If you have an old database, make sure you
upgrade to envr 0.4.0 and run `envr list` before upgrading to this
version.

db.odin

@@ -4,7 +4,6 @@ import "base:runtime"
 import "core:crypto/hash"
 import "core:encoding/hex"
 import "core:encoding/ini"
-import "core:encoding/json"
 import "core:fmt"
 import "core:mem"
 import "core:os"
@@ -222,7 +221,6 @@ db_list :: proc(db: ^Db) -> ([]EnvFile, bool) {
 	allocator := db_allocator(db)
 	results := make([dynamic]EnvFile, 0, 10, allocator)
 
-	migrate := false
 	for {
 		rc = sqlite.step(stmt)
 		if rc == sqlite.DONE {
@@ -233,24 +231,13 @@ db_list :: proc(db: ^Db) -> ([]EnvFile, bool) {
 			#no_bounds_check return results[:], false
 		}
 
-		// TODO: Remove json support after next major release
-		remotes: [dynamic]string = ---
 		remotes_raw := string(sqlite.column_text(stmt, 1))
-		if len(remotes_raw) > 0 {
-			if remotes_raw[0] == '[' {
-				err := json.unmarshal_string(remotes_raw, &remotes, allocator = allocator)
-				if err != nil {
-					fmt.eprintf("Warning: malformed remotes JSON: %v\n", err)
-				}
-				migrate = true
-			} else {
 		split := strings.split_lines(remotes_raw, context.temp_allocator)
-				remotes = make([dynamic]string, 0, len(split), allocator = allocator)
+		remotes := make([dynamic]string, 0, len(split), allocator = allocator)
 		for s in split {
 			append(&remotes, strings.clone(s, allocator))
 		}
-			}
+
-		}
 		path := clone_cstring(sqlite.column_text(stmt, 0), allocator)
 
 		append(
@@ -265,10 +252,6 @@ db_list :: proc(db: ^Db) -> ([]EnvFile, bool) {
 		)
 	}
 
-	if migrate {
-		migrate_remotes(db)
-	}
-
 	#no_bounds_check return results[:], true
 }
 
@@ -364,33 +347,15 @@ db_fetch :: proc(db: ^Db, path: string) -> (EnvFile, bool) {
 		return EnvFile{}, false
 	}
 
-	// TODO: Remove json support after next major release
-	migrate := false
-	remotes: [dynamic]string = ---
 	remotes_raw := string(sqlite.column_text(stmt, 1))
-	if len(remotes_raw) > 0 {
-		if remotes_raw[0] == '[' {
-			err := json.unmarshal_string(remotes_raw, &remotes, allocator = allocator)
-			if err != nil {
-				fmt.eprintf("Warning: malformed remotes JSON: %v\n", err)
-			}
-
-			migrate = true
-		} else {
 	split := strings.split_lines(remotes_raw, context.temp_allocator)
-			remotes = make([dynamic]string, 0, len(split), allocator = allocator)
+	remotes := make([dynamic]string, 0, len(split), allocator = allocator)
 	for s in split {
 		append(&remotes, strings.clone(s, allocator))
 	}
-		}
-	}
 
 	file_path := clone_cstring(sqlite.column_text(stmt, 0), allocator)
 
-	if migrate {
-		migrate_remotes(db)
-	}
-
 	return EnvFile {
 			path = file_path,
 			dir = filepath.dir(file_path),
@@ -525,27 +490,6 @@ db_persist :: proc(db: ^Db, f: ^EnvFile, old_path: string) -> bool {
 	return db_insert(db, f^)
 }
 
-// TODO: Remove after the next major release
-migrate_remotes :: proc(db: ^Db) {
-	sql ::
-		"UPDATE envr_env_files " +
-		"SET remotes = COALESCE((" +
-		"  SELECT group_concat(atom, char(10)) " +
-		"  FROM json_each(envr_env_files.remotes)" +
-		"), '') " +
-		"WHERE remotes LIKE '[%'"
-
-	rc := sqlite.exec(db.conn, sql, nil, nil, nil)
-	if rc != sqlite.OK {
-		fmt.eprintf("Warning: failed to migrate remotes: %s\n", sqlite.errmsg(db.conn))
-		return
-	}
-
-	if sqlite.changes(db.conn) > 0 {
-		db.changed = true
-	}
-}
-
 try_move_dir :: proc(db: ^Db, f: ^EnvFile, allocator: mem.Allocator) -> (bool, SyncError) {
 	roots, ok := find_git_roots(db.cfg)
 	if !ok {