Re: [PATCH] kconfig: do not record timestamp in .config

From: Michal Marek
Date: Mon May 16 2011 - 04:29:39 EST

On 16.5.2011 05:22, Arnaud Lacombe wrote:
Hi Michal,

The following patch removes the timestamp in .config file. This is a
prerequiresite for the revised version of the printer merge I sent back
in December[0]. The issue is that heading comment generations will be
merged in a single function, and that would revert the deterministic
change you made in mid-April.

The other options are either to have timestamp always enabled and
disable them selectively, but that might be a pain to implement, or to
have timestamp disable by default and an environment variable, say
KCONFIG_TIMESTAMP, to turn everything on manually.

I personally am not a big fan of embedded timestamps, so

Acked-by: Michal Marek <mmarek@xxxxxxx>

But I'll wait some time before merging this, in case there are objections from others...


- Arnaud



From: Arnaud Lacombe<lacombar@xxxxxxxxx>
Subject: kconfig: do not record timestamp in .config

Signed-off-by: Arnaud Lacombe<lacombar@xxxxxxxxx>
Documentation/kbuild/kconfig.txt | 5 -----
scripts/kconfig/confdata.c | 12 +-----------
2 files changed, 1 insertions(+), 16 deletions(-)

diff --git a/Documentation/kbuild/kconfig.txt b/Documentation/kbuild/kconfig.txt
index cca46b1..c313d71 100644
--- a/Documentation/kbuild/kconfig.txt
+++ b/Documentation/kbuild/kconfig.txt
If you set KCONFIG_OVERWRITECONFIG in the environment, Kconfig will not
break symlinks when .config is a symlink to somewhere else.

-If this environment variable exists and is non-null, the timestamp line
-in generated .config files is omitted.
Environment variables for '{allyes/allmod/allno/rand}config'

diff --git a/scripts/kconfig/confdata.c b/scripts/kconfig/confdata.c
index 834eecb..2bafd9a 100644
--- a/scripts/kconfig/confdata.c
+++ b/scripts/kconfig/confdata.c
@@ -560,8 +560,6 @@ int conf_write(const char *name)
const char *basename;
const char *str;
char dirname[PATH_MAX+1], tmpname[PATH_MAX+1], newname[PATH_MAX+1];
- time_t now;
- int use_timestamp = 1;
char *env;

dirname[0] = 0;
@@ -598,19 +596,11 @@ int conf_write(const char *name)
if (!out)
return 1;

- time(&now);
- env = getenv("KCONFIG_NOTIMESTAMP");
- if (env&& *env)
- use_timestamp = 0;
fprintf(out, _("#\n"
"# Automatically generated make config: don't edit\n"
"# %s\n"
- "%s%s"
- rootmenu.prompt->text,
- use_timestamp ? "# " : "",
- use_timestamp ? ctime(&now) : "");
+ rootmenu.prompt->text);

if (!conf_get_changed())

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