Revision d88785e424aaf18aa3ca291c2299c599c000c6cb authored by Jeff King on 11 May 2016, 13:44:04 UTC, committed by Junio C Hamano on 11 May 2016, 21:03:14 UTC
Passing "-x" to a test script enables the shell's "set -x" tracing, which can help with tracking down the command that is causing a failure. Unfortunately, it can also _cause_ failures in some tests that redirect the stderr of a shell function. Inside the function the shell continues to respect "set -x", and the trace output is collected along with whatever stderr is generated normally by the function. You can see an example of this by running: ./t0040-parse-options.sh -x -i which will fail immediately in the first test, as it expects: test_must_fail some-cmd 2>output.err to leave output.err empty (but with "-x" it has our trace output). Unfortunately there isn't a portable or scalable solution to this. We could teach test_must_fail to disable "set -x", but that doesn't help any of the other functions or subshells. However, we can work around it by pointing the "set -x" output to our descriptor 4, which always points to the original stderr of the test script. Unfortunately this only works for bash, but it's better than nothing (and other shells will just ignore the BASH_XTRACEFD variable). The patch itself is a simple one-liner, but note the caveats in the accompanying comments. Automatic tests for our "-x" option may be a bit too meta (and a pain, because they are bash-specific), but I did confirm that it works correctly both with regular "-x" and with "--verbose-only=1". This works because the latter flips "set -x" off and on for particular tests (if it didn't, we would get tracing for all tests, as going to descriptor 4 effectively circumvents the verbose flag). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
1 parent 7654286
Makefile
# make and install sample templates
ifndef V
QUIET = @
endif
INSTALL ?= install
TAR ?= tar
RM ?= rm -f
prefix ?= $(HOME)
template_instdir ?= $(prefix)/share/git-core/templates
# DESTDIR=
ifndef SHELL_PATH
SHELL_PATH = /bin/sh
endif
ifndef PERL_PATH
PERL_PATH = perl
endif
SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH))
PERL_PATH_SQ = $(subst ','\'',$(PERL_PATH))
# Shell quote (do not use $(call) to accommodate ancient setups);
DESTDIR_SQ = $(subst ','\'',$(DESTDIR))
template_instdir_SQ = $(subst ','\'',$(template_instdir))
all: boilerplates.made custom
# Put templates that can be copied straight from the source
# in a file direc--tory--file in the source. They will be
# just copied to the destination.
bpsrc = $(filter-out %~,$(wildcard *--*))
boilerplates.made : $(bpsrc)
$(QUIET)umask 022 && ls *--* 2>/dev/null | \
while read boilerplate; \
do \
case "$$boilerplate" in *~) continue ;; esac && \
dst=`echo "$$boilerplate" | sed -e 's|^this|.|;s|--|/|g'` && \
dir=`expr "$$dst" : '\(.*\)/'` && \
mkdir -p blt/$$dir && \
case "$$boilerplate" in \
*--) continue;; \
esac && \
sed -e '1s|#!.*/sh|#!$(SHELL_PATH_SQ)|' \
-e 's|@SHELL_PATH@|$(SHELL_PATH_SQ)|' \
-e 's|@PERL_PATH@|$(PERL_PATH_SQ)|g' $$boilerplate > \
blt/$$dst && \
if test -x "$$boilerplate"; then rx=rx; else rx=r; fi && \
chmod a+$$rx "blt/$$dst" || exit; \
done && \
date >$@
# If you need build-tailored templates, build them into blt/
# directory yourself here.
custom:
$(QUIET): no custom templates yet
clean:
$(RM) -r blt boilerplates.made
install: all
$(INSTALL) -d -m 755 '$(DESTDIR_SQ)$(template_instdir_SQ)'
(cd blt && $(TAR) cf - .) | \
(cd '$(DESTDIR_SQ)$(template_instdir_SQ)' && umask 022 && $(TAR) xof -)
![swh spinner](/static/img/swh-spinner.gif)
Computing file changes ...