Re: [GUILT] [PATCH] get rid of "cat: write error: Broken pipe" error message

> In some circumstances (like running guilt in a M-x shell buffer in
> Emacs) cat may give the above error message when the reader of the
> output from cat exits without reading all input from cat.  (In other
> circumstances cat is just silently terminated with SIGPIPE.)
> 
> Get rid of the error by removing the useless use of cat in
> do_get_header and do_get_full_header.

> Signed-off-by: Per Cederqvist <cederp@opera.com>
> ---
>  guilt |    8 ++++----
>  1 files changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/guilt b/guilt
> index d1e17d4..7f6806e 100755
> --- a/guilt
> +++ b/guilt
> @@ -359,7 +359,7 @@ do_get_header()
>  	# 4th line skips any empty lines thereafter.
>  	# 5th line turns off empty line skip upon seeing a non-empty line.
>  	# 6th line terminates execution when we encounter the diff
> -	cat "$1" | awk '
> +	awk '
>  BEGIN{body=0; subj=0}
>  /^Subject:/ && (body == 0 && subj == 0){subj=1; print substr($0,
> 10) "\n"; next}
>  /^(Subject:|From:|Author:|Date:|commit)/ && (body == 0){next}
> @@ -369,7 +369,7 @@ BEGIN{body=0; subj=0}
>  /^(diff |---$|--- )/{exit}
>  {print $0}
>  END{}
> -'
> +' < "$1"
>  }
> 
>  # usage: do_get_full_header patchfile
> @@ -377,12 +377,12 @@ do_get_full_header()
>  {
>  	# 2nd line checks for the begining of a patch
>  	# 3rd line outputs the line if it didn't get pruned by the above rules
> -	cat "$1" | awk '
> +	awk '
>  BEGIN{}
>  /^(diff |---$|--- )/{exit}
>  {print $0}
>  END{}
> -'
> +' < "$1"
>  }
> 
>  # usage: assert_head_check
> -- 
> 1.7.9
>