Re: [PATCH v2] devtools: fix symbol check for filename with space

[Neil Horman <nhorman@tuxdriver.com>]

On Wed, Jul 18, 2018 at 11:26:58PM +0200, Thomas Monjalon wrote:
> If the patch filename or the temporary file path have a space
> in their name, the script check-symbol-change.sh does not work.
> The variables for the filenames must be enclosed in quotes
> in order to preserve spaces.
> 
> Fixes: 4bec48184e33 ("devtools: add checks for ABI symbol addition")
> Cc: nhorman@tuxdriver.com
> 
> Signed-off-by: Thomas Monjalon <thomas@monjalon.net>
> ---
> v2: one occurence of "$mapfile" was missed in v1
I don't have any issue with this change, but the only way I see to introduce a
space into the tempfile name is to set $TMPDIR to '/path/with silly spaces' or
something simmilar.  I think we discussed this before, but it would alsmot make
sense to, instead of quoting everything, instead specify -p ./ to ensure the
tempfile has no spaces.

Neil

> ---
>  devtools/check-symbol-change.sh | 20 ++++++++++----------
>  1 file changed, 10 insertions(+), 10 deletions(-)
> 
> diff --git a/devtools/check-symbol-change.sh b/devtools/check-symbol-change.sh
> index 9952a8d66..40b72073a 100755
> --- a/devtools/check-symbol-change.sh
> +++ b/devtools/check-symbol-change.sh
> @@ -7,7 +7,7 @@ build_map_changes()
>  	local fname=$1
>  	local mapdb=$2
>  
> -	cat $fname | awk '
> +	cat "$fname" | awk '
>  		# Initialize our variables
>  		BEGIN {map="";sym="";ar="";sec=""; in_sec=0; in_map=0}
>  
> @@ -71,10 +71,10 @@ build_map_changes()
>  					print map " " sym " unknown del"
>  				}
>  			}
> -		}' > ./$mapdb
> +		}' > "$mapdb"
>  
> -		sort -u $mapdb > ./$mapdb.2
> -		mv -f $mapdb.2 $mapdb
> +		sort -u "$mapdb" > "$mapdb.2"
> +		mv -f "$mapdb.2" "$mapdb"
>  
>  }
>  
> @@ -111,7 +111,7 @@ check_for_rule_violations()
>  				# to be moving from an already supported
>  				# section or its a violation
>  				grep -q \
> -				"$mname $symname [^EXPERIMENTAL] del" $mapdb
> +				"$mname $symname [^EXPERIMENTAL] del" "$mapdb"
>  				if [ $? -ne 0 ]
>  				then
>  					echo -n "ERROR: symbol $symname "
> @@ -133,7 +133,7 @@ check_for_rule_violations()
>  				echo "gone through the deprecation process"
>  			fi
>  		fi
> -	done < $mapdb
> +	done < "$mapdb"
>  
>  	return $ret
>  }
> @@ -146,14 +146,14 @@ exit_code=1
>  
>  clean_and_exit_on_sig()
>  {
> -	rm -f $mapfile
> +	rm -f "$mapfile"
>  	exit $exit_code
>  }
>  
> -build_map_changes $patch $mapfile
> -check_for_rule_violations $mapfile
> +build_map_changes "$patch" "$mapfile"
> +check_for_rule_violations "$mapfile"
>  exit_code=$?
>  
> -rm -f $mapfile
> +rm -f "$mapfile"
>  
>  exit $exit_code
> -- 
> 2.17.1
> 
>