File bsc1047218-0001-man-obey-SOURCE_DATE_EPOCH-when-generating-man-pages.patch of Package docker.12062
From 64f1dfcbe4313bccacbe603dcb444da82d9136d7 Mon Sep 17 00:00:00 2001
From: Aleksa Sarai <asarai@suse.de>
Date: Thu, 23 Aug 2018 19:53:55 +1000
Subject: [PATCH] man: obey SOURCE_DATE_EPOCH when generating man pages
Previously our man pages included the current time each time they were
generated. This causes an issue for reproducible builds, since each
re-build of a package that includes the man pages will have different
times listed in the man pages.
To fix this, add support for SOURCE_DATE_EPOCH (which is a standardised
packaging environment variable, designed to be used specifically for
this purpose[1]). spf13/cobra doesn't support this natively yet (though
I will push a patch for that as well), but it's simpler to fix it
directly in docker/cli.
[1]: https://reproducible-builds.org/specs/source-date-epoch/
SUSE-Bugs: boo#1047218
Signed-off-by: Aleksa Sarai <asarai@suse.de>
---
components/cli/man/generate.go | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/components/cli/man/generate.go b/components/cli/man/generate.go
index 2d940e31fd10..e5e480be3f32 100644
--- a/components/cli/man/generate.go
+++ b/components/cli/man/generate.go
@@ -6,6 +6,8 @@ import (
"log"
"os"
"path/filepath"
+ "strconv"
+ "time"
"github.com/docker/cli/cli/command"
"github.com/docker/cli/cli/command/commands"
@@ -24,6 +26,17 @@ func generateManPages(opts *options) error {
Source: "Docker Community",
}
+ // If SOURCE_DATE_EPOCH is set, in order to allow reproducible package
+ // builds, we explicitly set the build time to SOURCE_DATE_EPOCH.
+ if epoch := os.Getenv("SOURCE_DATE_EPOCH"); epoch != "" {
+ unixEpoch, err := strconv.ParseInt(epoch, 10, 64)
+ if err != nil {
+ return fmt.Errorf("invalid SOURCE_DATE_EPOCH: %v", err)
+ }
+ now := time.Unix(unixEpoch, 0)
+ header.Date = &now
+ }
+
stdin, stdout, stderr := term.StdStreams()
dockerCli := command.NewDockerCli(stdin, stdout, stderr, false, nil)
cmd := &cobra.Command{Use: "docker"}
--
2.21.0
