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authorLibravatar Matheus Tavares <matheus.bernardino@usp.br>2020-03-22 12:58:57 -0300
committerLibravatar Junio C Hamano <gitster@pobox.com>2020-03-25 09:08:53 -0700
commit78dc08875cd9a92bb39815ad1420afbf3dc682de (patch)
tree8eb046577078493f4b9d1910bec8f571503e3127 /t
parentGit 2.26 (diff)
downloadtgif-78dc08875cd9a92bb39815ad1420afbf3dc682de.tar.xz
test-lib: allow short options to be bundled
When debugging a test (or a set of tests), it's common to execute it with some combination of short options, such as: $ ./txxx-testname.sh -d -x -i In cases like this, CLIs usually allow the short options to be bundled in a single argument, for convenience and agility. Let's add this feature to test-lib, allowing the above command to be run as: $ ./txxx-testname.sh -dxi (or any other permutation, e.g. '-ixd') Note: Short options that require an argument can also be used in a bundle, in any position. So, for example, '-r 5 -x', '-xr 5' and '-rx 5' are all valid and equivalent. A special case would be having a bundle with more than one of such options. To keep things simple, this case is not allowed for now. This shouldn't be a major limitation, though, as the only short option that requires an argument today is '-r'. And concatenating '-r's as in '-rr 5 6' would probably not be very practical: its unbundled format would be '-r 5 -r 6', for which test-lib currently considers only the last argument. Therefore, if '-rr 5 6' were to be allowed, it would have the same effect as just typing '-r 6'. Note: the test-lib currently doesn't support '-r5', as an alternative for '-r 5', so the former is not supported in bundles as well. Helped-by: Jeff King <peff@peff.net> Signed-off-by: Matheus Tavares <matheus.bernardino@usp.br> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't')
-rw-r--r--t/README3
-rw-r--r--t/test-lib.sh61
2 files changed, 49 insertions, 15 deletions
diff --git a/t/README b/t/README
index 9afd61e3ca..080bc59fc4 100644
--- a/t/README
+++ b/t/README
@@ -69,7 +69,8 @@ You can also run each test individually from command line, like this:
You can pass --verbose (or -v), --debug (or -d), and --immediate
(or -i) command line argument to the test, or by setting GIT_TEST_OPTS
-appropriately before running "make".
+appropriately before running "make". Short options can be bundled, i.e.
+'-d -v' is the same as '-dv'.
-v::
--verbose::
diff --git a/t/test-lib.sh b/t/test-lib.sh
index 0ea1e5a05e..a6178e9fac 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -78,20 +78,23 @@ then
exit 1
fi
-# Parse options while taking care to leave $@ intact, so we will still
-# have all the original command line options when executing the test
-# script again for '--tee' and '--verbose-log' below.
store_arg_to=
-prev_opt=
-for opt
-do
- if test -n "$store_arg_to"
+opt_required_arg=
+# $1: option string
+# $2: name of the var where the arg will be stored
+mark_option_requires_arg () {
+ if test -n "$opt_required_arg"
then
- eval $store_arg_to=\$opt
- store_arg_to=
- prev_opt=
- continue
+ echo "error: options that require args cannot be bundled" \
+ "together: '$opt_required_arg' and '$1'" >&2
+ exit 1
fi
+ opt_required_arg=$1
+ store_arg_to=$2
+}
+
+parse_option () {
+ local opt="$1"
case "$opt" in
-d|--d|--de|--deb|--debu|--debug)
@@ -101,7 +104,7 @@ do
-l|--l|--lo|--lon|--long|--long-|--long-t|--long-te|--long-tes|--long-test|--long-tests)
GIT_TEST_LONG=t; export GIT_TEST_LONG ;;
-r)
- store_arg_to=run_list
+ mark_option_requires_arg "$opt" run_list
;;
--run=*)
run_list=${opt#--*=} ;;
@@ -185,12 +188,42 @@ do
*)
echo "error: unknown test option '$opt'" >&2; exit 1 ;;
esac
+}
+
+# Parse options while taking care to leave $@ intact, so we will still
+# have all the original command line options when executing the test
+# script again for '--tee' and '--verbose-log' later.
+for opt
+do
+ if test -n "$store_arg_to"
+ then
+ eval $store_arg_to=\$opt
+ store_arg_to=
+ opt_required_arg=
+ continue
+ fi
- prev_opt=$opt
+ case "$opt" in
+ --*|-?)
+ parse_option "$opt" ;;
+ -?*)
+ # bundled short options must be fed separately to parse_option
+ opt=${opt#-}
+ while test -n "$opt"
+ do
+ extra=${opt#?}
+ this=${opt%$extra}
+ opt=$extra
+ parse_option "-$this"
+ done
+ ;;
+ *)
+ echo "error: unknown test option '$opt'" >&2; exit 1 ;;
+ esac
done
if test -n "$store_arg_to"
then
- echo "error: $prev_opt requires an argument" >&2
+ echo "error: $opt_required_arg requires an argument" >&2
exit 1
fi