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feature_to_c.sh: Print help when passing no arguments

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I found that odd that passing no arguments to feature_to_c.sh produces
this:

$ ./feature_to_c.sh
./feature_to_c.sh: 23: shift: can't shift that many

but passing one argument shows the help:

$ ./feature_to_c.sh hello
Usage: ./feature_to_c.sh OUTPUTFILE INPUTFILE...

This patch changes the script to show the help in both cases.

gdb/ChangeLog:

	* features/feature_to_c.sh: Print the help when passing no
	argument.
This commit is contained in:
Simon Marchi 2016-03-04 10:03:06 -05:00
parent e18b24a419
commit 73519cce7c
2 changed files with 9 additions and 4 deletions
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5
gdb/ChangeLog
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@ -1,3 +1,8 @@
2016-03-04 Simon Marchi <simon.marchi@ericsson.com>
* features/feature_to_c.sh: Print the help when passing no
argument.
2016-03-02 Bernhard Heckel <bernhard.heckel@intel.com>
* MAINTAINERS (Write After Approval): Add Bernhard Heckel.

8
gdb/features/feature_to_c.sh
View file

@ -19,14 +19,14 @@
# You should have received a copy of the GNU General Public License
# along with this program. If not, see <http://www.gnu.org/licenses/>.
output=$1
shift
if test -z "$output" || test -z "$1"; then
if test -z "$1" || test -z "$2"; then
echo "Usage: $0 OUTPUTFILE INPUTFILE..."
exit 1
fi
output=$1
shift
if test -e "$output"; then
echo "Output file \"$output\" already exists; refusing to overwrite."
exit 1