Signed-off-by: Sebastian <sebastian@sebsite.pw>
---
 main.ha | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/main.ha b/main.ha
index c3724c2..1980c1c 100644
--- a/main.ha
+++ b/main.ha
@@ -24,7 +24,7 @@ fn is_blob(filename: str) (bool | fs::error | io::error) = {
 	static let buffer: [512]u8 = [0...];
 
 	const file = os::open(filename)?;
-	defer io::close(file);
+	defer io::close(file)!;
 
 	const n = match (io::read(file, buffer)?) {
 	case let s: size =>
-- 
2.35.1

Signed-off-by: Sebastian <sebastian@sebsite.pw>
---
 main.ha | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/main.ha b/main.ha
index 1980c1c..aba99ee 100644
--- a/main.ha
+++ b/main.ha
@@ -57,7 +57,7 @@ fn is_blob(filename: str) (bool | fs::error | io::error) = {
 	for (let i = 0z; i < len(tests); i += 1) {
 		const result = is_blob(tests[i].0)!;
 		if (result != tests[i].1) {
-			fmt::fatal("is_blob({}) was incorrect, got {}, expected {}",
+			fmt::fatalf("is_blob({}) was incorrect, got {}, expected {}",
 				tests[i].0, result, tests[i].1);
 		};
 	};
@@ -155,7 +155,7 @@ fn check_dir(dirname: str, ignoring: bool) (void | errors::invalid) = {
 	case let d: []fs::dirent =>
 		yield d;
 	case let e: fs::error =>
-		fmt::fatal("os::readdir({}): {}", dirname, fs::strerror(e));
+		fmt::fatalf("os::readdir({}): {}", dirname, fs::strerror(e));
 	};
 
 	const ret = check_dir(dirname, false);
@@ -165,7 +165,7 @@ fn check_dir(dirname: str, ignoring: bool) (void | errors::invalid) = {
 	case let d: []fs::dirent =>
 		yield d;
 	case let e: fs::error =>
-		fmt::fatal("os::readdir({}): {}", dirname, fs::strerror(e));
+		fmt::fatalf("os::readdir({}): {}", dirname, fs::strerror(e));
 	};
 
 	assert(len(files_after) == 5);
@@ -190,7 +190,7 @@ export fn main() void = {
 		case 'd' =>
 			match (os::chdir(opt.1)) {
 			case let e: fs::error =>
-				fmt::fatal("os::chdir({}): {}",
+				fmt::fatalf("os::chdir({}): {}",
 					opt.1, fs::strerror(e));
 			case void =>
 				void;
-- 
2.35.1

Signed-off-by: Sebastian <sebastian@sebsite.pw>
---
 main.ha | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/main.ha b/main.ha
index aba99ee..5e07869 100644
--- a/main.ha
+++ b/main.ha
@@ -26,10 +26,7 @@ fn is_blob(filename: str) (bool | fs::error | io::error) = {
 	const file = os::open(filename)?;
 	defer io::close(file)!;
 
-	const n = match (io::read(file, buffer)?) {
-	case let s: size =>
-		yield s;
-	case io::EOF =>
+	if (io::readall(file, buffer)? is io::EOF) {
 		// empty file
 		return false;
 	};
-- 
2.35.1