From: Sergey Matveev <stargrave@stargrave.org>
Date: Tue, 3 Sep 2024 18:47:57 +0000 (+0300)
Subject: ZIP does not handle <1980, let's be friendly to it
X-Git-Url: http://www.git.cypherpunks.su/?a=commitdiff_plain;h=efbf710477da9fcdf935bb57d66d5f4b090ff4a3e90d89240772b3251b28d0cf;p=bass.git

ZIP does not handle <1980, let's be friendly to it
---

diff --git a/build/contrib/detpax/README b/build/contrib/detpax/README
index 00e3680..89884a5 100644
--- a/build/contrib/detpax/README
+++ b/build/contrib/detpax/README
@@ -12,8 +12,8 @@ pax format creation leads to inclusion of precise timestamps in bsdtar.
 And there are no options to skip that behaviour.
 
 detpax stores only minimal set of metainformation. Directories walking
-is done in a sorted way. No UIDs/GIDs or any kind of timestamps are
-stored, but permissions with sticky/setuid/setgid bits.
+is done in a sorted way. No UIDs/GIDs or any kind of timestamps are stored
+(except for dummy mtime), but permissions with sticky/setuid/setgid bits.
 
 It also has ability to set higher precedence ordering for some
 directories. For example BASS packages stores their dependencies as
diff --git a/build/contrib/detpax/main.go b/build/contrib/detpax/main.go
index c534fa8..51f8e4b 100644
--- a/build/contrib/detpax/main.go
+++ b/build/contrib/detpax/main.go
@@ -26,6 +26,7 @@ import (
 	"sort"
 	"strings"
 	"syscall"
+	"time"
 )
 
 const (
@@ -176,7 +177,10 @@ will put dir/foo/bar first, dir/foo second, others next.`)
 			return files[i].order < files[j].order
 		})
 
-		hdr := tar.Header{Format: tar.FormatPAX}
+		hdr := tar.Header{
+			Format:  tar.FormatPAX,
+			ModTime: time.Date(1981, 1, 1, 0, 0, 0, 0, time.UTC),
+		}
 		for _, info := range files {
 			hdr.Name = info.name
 			hdr.Mode = int64(info.mode & 0o777)