From 56ac230e5e6c849376a72e12f9e65ea3800fe18e Mon Sep 17 00:00:00 2001
From: Emil Lerch <emil@lerch.org>
Date: Tue, 3 Feb 2026 17:36:03 -0800
Subject: [PATCH] add ability for consumers to specify env file / log info &
 continue if not exists

---
 lambdabuild.zig            | 6 +++++-
 tools/build/src/deploy.zig | 6 +++++-
 2 files changed, 10 insertions(+), 2 deletions(-)

diff --git a/lambdabuild.zig b/lambdabuild.zig
index 9aecd27..053a85c 100644
--- a/lambdabuild.zig
+++ b/lambdabuild.zig
@@ -16,6 +16,10 @@ pub const Config = struct {
 
     /// Default IAM role name if not specified via -Drole-name.
     default_role_name: []const u8 = "lambda_basic_execution",
+
+    /// Default environment file if not specified via -Denv-file.
+    /// If the file doesn't exist, it's silently skipped.
+    default_env_file: ?[]const u8 = ".env",
 };
 
 /// Information about the configured Lambda build steps.
@@ -84,7 +88,7 @@ pub fn configureBuild(
         []const u8,
         "env-file",
         "Path to environment variables file (KEY=VALUE format)",
-    ) orelse null;
+    ) orelse config.default_env_file;
     const allow_principal = b.option(
         []const u8,
         "allow-principal",
diff --git a/tools/build/src/deploy.zig b/tools/build/src/deploy.zig
index cb83ccc..7bbd8d1 100644
--- a/tools/build/src/deploy.zig
+++ b/tools/build/src/deploy.zig
@@ -138,8 +138,12 @@ fn loadEnvFile(
     allocator: std.mem.Allocator,
 ) !void {
     const file = std.fs.cwd().openFile(path, .{}) catch |err| {
+        if (err == error.FileNotFound) {
+            std.log.info("Env file '{s}' not found, skipping", .{path});
+            return;
+        }
         std.log.err("Failed to open env file '{s}': {}", .{ path, err });
-        return error.EnvFileNotFound;
+        return error.EnvFileOpenError;
     };
     defer file.close();