From e4e70382471ded52af4da1872d8544da0428d3a4 Mon Sep 17 00:00:00 2001
From: Kyren223 <kyren223@proton.me>
Date: Wed, 30 Jul 2025 20:34:33 +0300
Subject: Converted buildDate to unix to prevent cache invalidation due to
 impure date

---
 cmd/client/main.go | 11 ++++++++++-
 cmd/server/main.go | 14 +++++++++-----
 flake.nix          | 13 ++-----------
 3 files changed, 21 insertions(+), 17 deletions(-)

diff --git a/cmd/client/main.go b/cmd/client/main.go
index 87e3d98..00baefb 100644
--- a/cmd/client/main.go
+++ b/cmd/client/main.go
@@ -20,6 +20,8 @@ import (
 	"fmt"
 	"log"
 	"os"
+	"strconv"
+	"time"
 
 	"github.com/kyren223/eko/embeds"
 	"github.com/kyren223/eko/internal/client"
@@ -29,7 +31,14 @@ func main() {
 	if len(os.Args) > 1 && os.Args[1] == "-v" {
 		fmt.Println("version:", embeds.Version)
 		fmt.Println("commit:", embeds.Commit)
-		fmt.Println("build date:", embeds.BuildDate)
+		buildDate := embeds.BuildDate
+		if buildDate != "unknown" {
+			t, err := strconv.ParseInt(buildDate, 10, 64)
+			if err == nil {
+				buildDate = time.Unix(t, 0).Format("2006-01-02")
+			}
+		}
+		fmt.Println("build date:", buildDate)
 		return
 	}
 
diff --git a/cmd/server/main.go b/cmd/server/main.go
index 8ee5674..db4a479 100644
--- a/cmd/server/main.go
+++ b/cmd/server/main.go
@@ -26,13 +26,10 @@ import (
 	"os"
 	"os/signal"
 	"path/filepath"
+	"strconv"
 	"syscall"
 	"time"
 
-	// "github.com/grafana/pyroscope-go"
-	// _ "github.com/grafana/pyroscope-go/godeltaprof/http/pprof"
-	// _ "net/http/pprof"
-
 	"github.com/kyren223/eko/embeds"
 	"github.com/kyren223/eko/internal/server"
 	"github.com/kyren223/eko/internal/server/api"
@@ -55,7 +52,14 @@ func main() {
 	if len(os.Args) > 1 && os.Args[1] == "-v" {
 		fmt.Println("version:", embeds.Version)
 		fmt.Println("commit:", embeds.Commit)
-		fmt.Println("build date:", embeds.BuildDate)
+		buildDate := embeds.BuildDate
+		if buildDate != "unknown" {
+			t, err := strconv.ParseInt(buildDate, 10, 64)
+			if err == nil {
+				buildDate = time.Unix(t, 0).Format("2006-01-02")
+			}
+		}
+		fmt.Println("build date:", buildDate)
 		return
 	}
 
diff --git a/flake.nix b/flake.nix
index b5b7143..357621a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -22,19 +22,10 @@
           inherit system overlays;
         };
         version = (builtins.readFile ./VERSION);
-        buildDate = builtins.readFile (
-          pkgs.runCommand "build-date" { } ''
-            ${pkgs.coreutils}/bin/date --date=@${toString self.lastModified} +%Y-%m-%d -u > $out
-          ''
-        );
-        # buildDate = builtins.readFile (
-        #   pkgs.runCommand "build-date" { } ''
-        #     date -u +'%Y-%m-%d' > $out
-        #   ''
-        # );
+        buildDate = toString self.lastModified;
         commit = if (builtins.hasAttr "rev" self) then (builtins.substring 0 7 self.rev) else "unknown";
         # vendorHash = pkgs.lib.fakeHash;
-        vendorHash = "sha256-2yCQ40T5N90lKpPOc+i6vz+1mI/p4Ey6PdRCJbGD+TE=";
+        vendorHash = "sha256-dLhLFyrufv3dNlAw1QLlf9/LsHMcUaD9F2byKlC+35E=";
         src =
           let
             # Set this to `true` in order to show all of the source files
-- 
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