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authorJohannes Schindelin <johannes.schindelin@gmx.de>2019-04-12 02:37:24 -0700
committerJunio C Hamano <gitster@pobox.com>2019-04-15 11:54:04 +0900
commitb02e7d5d701a6217a3a522d9169b483b25c262dc (patch)
treebc10e8b9d983bc5fa7dcf9c300dbd1e0cf1f4ca8 /t/test-lib.sh
parenteffc2bae642a08ea0cb4a9020cb57632d00ab1a0 (diff)
downloadgit-b02e7d5d701a6217a3a522d9169b483b25c262dc.tar.gz
tests: disallow the use of abbreviated options (by default)
Git's command-line parsers support uniquely abbreviated options, e.g. `git init --ba` would automatically expand `--ba` to `--bare`. This is a very convenient feature in every day life for Git users, in particular when tab completion is not available. However, it is not a good idea to rely on that in Git's test suite, as something that is a unique abbreviation of a command line option today might no longer be a unique abbreviation tomorrow. For example, if a future contribution added a new mode `git init --babyproofing` and a previously-introduced test case used the fact that `git init --ba` expanded to `git init --bare`, that future contribution would now have to touch seemingly unrelated tests just to keep the test suite from failing. So let's disallow abbreviated options in the test suite by default. Note: for ease of implementation, this patch really only touches the `parse-options` machinery: more and more hand-rolled option parsers are converted to use that internal API, and more and more scripts are converted to built-ins (naturally using the parse-options API, too), so in practice this catches most issues, and is definitely the biggest bang for the buck. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't/test-lib.sh')
-rw-r--r--t/test-lib.sh7
1 files changed, 7 insertions, 0 deletions
diff --git a/t/test-lib.sh b/t/test-lib.sh
index 562c57e685..c14ebe68d3 100644
--- a/t/test-lib.sh
+++ b/t/test-lib.sh
@@ -57,6 +57,13 @@ fi
. "$GIT_BUILD_DIR"/GIT-BUILD-OPTIONS
export PERL_PATH SHELL_PATH
+# Disallow the use of abbreviated options in the test suite by default
+if test -z "${GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS}"
+then
+ GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS=true
+ export GIT_TEST_DISALLOW_ABBREVIATED_OPTIONS
+fi
+
################################################################
# It appears that people try to run tests without building...
"${GIT_TEST_INSTALLED:-$GIT_BUILD_DIR}/git$X" >/dev/null