# [PATCH] Fix tracing when GIT_TRACE is set to an empty string.

3 messages from 2006-10-14 to 2006-10-14. Participants: Christian Couder, Junio C Hamano.
Thread: https://gitlist.dev/t/5924

## Christian Couder, 2006-10-14 14:05

Subject: [PATCH] Fix tracing when GIT_TRACE is set to an empty string.
Message-ID: <20061014160525.c013e6d2.chriscool@tuxfamily.org>
URL: https://gitlist.dev/e/20061014160525.c013e6d2.chriscool%40tuxfamily.org

```
Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
---
 trace.c |    3 ++-
 1 files changed, 2 insertions(+), 1 deletions(-)

diff --git a/trace.c b/trace.c
index f9efc91..495e5ed 100644
--- a/trace.c
+++ b/trace.c
@@ -55,7 +55,8 @@ static int get_trace_fd(int *need_close)
 {
 	char *trace = getenv("GIT_TRACE");
 
-	if (!trace || !strcmp(trace, "0") || !strcasecmp(trace, "false"))
+	if (!trace || !strcmp(trace, "") ||
+	    !strcmp(trace, "0") || !strcasecmp(trace, "false"))
 		return 0;
 	if (!strcmp(trace, "1") || !strcasecmp(trace, "true"))
 		return STDERR_FILENO;
-- 
1.4.3.rc2.gadba

```

## Junio C Hamano, 2006-10-14 18:11

Subject: Re: [PATCH] Fix tracing when GIT_TRACE is set to an empty string.
Message-ID: <7vodseahty.fsf@assigned-by-dhcp.cox.net>
URL: https://gitlist.dev/e/7vodseahty.fsf%40assigned-by-dhcp.cox.net
In-Reply-To: <20061014160525.c013e6d2.chriscool@tuxfamily.org>

```
Christian Couder <chriscool@tuxfamily.org> writes:

> Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
> ---
>  trace.c |    3 ++-
>  1 files changed, 2 insertions(+), 1 deletions(-)
>
> diff --git a/trace.c b/trace.c
> index f9efc91..495e5ed 100644
> --- a/trace.c
> +++ b/trace.c
> @@ -55,7 +55,8 @@ static int get_trace_fd(int *need_close)
>  {
>  	char *trace = getenv("GIT_TRACE");
>  
> -	if (!trace || !strcmp(trace, "0") || !strcasecmp(trace, "false"))
> +	if (!trace || !strcmp(trace, "") ||
> +	    !strcmp(trace, "0") || !strcasecmp(trace, "false"))
>  		return 0;
>  	if (!strcmp(trace, "1") || !strcasecmp(trace, "true"))
>  		return STDERR_FILENO;
> -- 
> 1.4.3.rc2.gadba

This means that

	GIT_TRACE= git-foo
and
	unset GIT_TRACE ; git-foo

should behave the same way, right?

If so that sounds sensible.

```

## Christian Couder, 2006-10-14 19:55

Subject: Re: [PATCH] Fix tracing when GIT_TRACE is set to an empty string.
Message-ID: <200610142155.32816.chriscool@tuxfamily.org>
URL: https://gitlist.dev/e/200610142155.32816.chriscool%40tuxfamily.org
In-Reply-To: <7vodseahty.fsf@assigned-by-dhcp.cox.net>

```
Junio C Hamano wrote:
> Christian Couder <chriscool@tuxfamily.org> writes:
> > Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
> > ---
> >  trace.c |    3 ++-
> >  1 files changed, 2 insertions(+), 1 deletions(-)
> >
> > diff --git a/trace.c b/trace.c
> > index f9efc91..495e5ed 100644
> > --- a/trace.c
> > +++ b/trace.c
> > @@ -55,7 +55,8 @@ static int get_trace_fd(int *need_close)
> >  {
> >  	char *trace = getenv("GIT_TRACE");
> >
> > -	if (!trace || !strcmp(trace, "0") || !strcasecmp(trace, "false"))
> > +	if (!trace || !strcmp(trace, "") ||
> > +	    !strcmp(trace, "0") || !strcasecmp(trace, "false"))
> >  		return 0;
> >  	if (!strcmp(trace, "1") || !strcasecmp(trace, "true"))
> >  		return STDERR_FILENO;
> > --
> > 1.4.3.rc2.gadba
>
> This means that
>
> 	GIT_TRACE= git-foo
> and
> 	unset GIT_TRACE ; git-foo
>
> should behave the same way, right?

Yes, that's the goal of this patch.

> If so that sounds sensible.

Thanks,
Christian.

```