From: Stefano Lattarini Date: Thu, 12 Jul 2012 22:49:39 +0000 (+0200) Subject: [ng] coverage: distributing lots of files X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4a22c5a0184a7871ea9cd5225b896b6f51254b63;p=thirdparty%2Fautomake.git [ng] coverage: distributing lots of files * t/dist-many.sh: New test, try distributing ~ 30 thousands files. Currently fails on several systems (e.g., Linux 2.6.30 on i686, Solaris 10 on i86pc). * t/dist-many2.sh: New test, check that our distribution rules do not hit errors due to an exceeded command line length when there are many files to distribute; it does so by faking a very low command line length limit for 'mkdir' (max 50 arguments) and the shell (max 4000 characters). Currently failing. Signed-off-by: Stefano Lattarini --- diff --git a/t/dist-many.sh b/t/dist-many.sh new file mode 100755 index 000000000..e006c016c --- /dev/null +++ b/t/dist-many.sh @@ -0,0 +1,82 @@ +#! /bin/sh +# Copyright (C) 2012 Free Software Foundation, Inc. +# +# This program is free software; you can redistribute it and/or modify +# it under the terms of the GNU General Public License as published by +# the Free Software Foundation; either version 2, or (at your option) +# any later version. +# +# This program is distributed in the hope that it will be useful, +# but WITHOUT ANY WARRANTY; without even the implied warranty of +# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +# GNU General Public License for more details. +# +# You should have received a copy of the GNU General Public License +# along with this program. If not, see . + +# Check that our dist rules do not hit errors due to a huge number +# of files to be distributed. Checks similar in spirit are done by +# sister test 'dist-many2.sh', which fakes an artificially low +# command line length limit for 'mkdir' and the shell. + +. ./defs || exit 1 + +echo AC_OUTPUT >> configure.ac + +file=an-empty-file-with-a-long-name +dir1=a-directory-with-a-long-name +dir2=another-long-named-directory + +# Distributed files will be 3 * $count. +count=10000 + +i=1 +while test $i -le $count; do + files=" + $file.$i + $dir1.$i/foo + $dir2.$i/$file.$i + " + mkdir $dir1.$i $dir2.$i + for f in $files; do + : > $f + echo $f + done + i=$(($i + 1)) + # Disable shell traces after the first iteration, to avoid + # polluting the test logs. + set +x +done > t +set -x # Re-enable shell traces. +echo 'EXTRA_DIST = \' >> Makefile.am +sed 's/$/ \\/' t >> Makefile.am +echo '$(am__empty)' >> Makefile.am +rm -f t + +test $(wc -l . + +# Check that our dist rules do not hit errors due to an exceeded +# command line length when there are many files to distribute. Here, +# we fake a very low command line length limit for 'mkdir' (max 50 +# arguments) and the shell (max 2000 chars in its command line). +# The sister test 'dist-many.sh' try to hit the real command line length +# limit of the system, by declaring a huge number of files to be cleaned. + +. ./defs || exit 1 + +mkdir bin + +cat > bin/mkdir << END +#!$AM_TEST_RUNNER_SHELL -u +PATH='$PATH'; export PATH +END +cat >> bin/mkdir << 'END' +if test $# -eq 0; then + echo "mkdir: missing argument" >&2 + exit 1 +elif test $# -gt 50; then + echo "mkdir: argument list too long ($# arguments)" >&2 + exit 1 +fi +exec mkdir "$@" +END + +cat > bin/am--sh << END +#!$AM_TEST_RUNNER_SHELL -u +sh='$SHELL' +END +cat >> bin/am--sh << 'END' +cmdline=$* +cmdline_len=${#cmdline} +test $cmdline_len -le 4000 || { + echo "sh: command line to long (~ $cmdline_len characters)" >&2 + exit 1 +} +exec $sh "$@" +END + +chmod a+x bin/mkdir bin/am--sh +PATH=$(pwd)/bin$PATH_SEPARATOR$PATH; export PATH +CONFIG_SHELL=$(pwd)/bin/am--sh; export CONFIG_SHELL + +echo AC_OUTPUT >> configure.ac + +file=an-empty-file-with-a-long-name +dir1=a-directory-with-a-long-name +dir2=another-long-named-directory + +# Distributed files will be 3 * $count. +count=200 + +i=1 +while test $i -le $count; do + files=" + $file.$i + $dir1.$i/foo + $dir2.$i/$file.$i + " + mkdir $dir1.$i $dir2.$i + for f in $files; do + : > $f + echo $f + done + i=$(($i + 1)) + # Disable shell traces after the first iteration, to avoid + # polluting the test logs. + set +x +done > t +set -x # Re-enable shell traces. +echo 'EXTRA_DIST = \' >> Makefile.am +sed 's/$/ \\/' t >> Makefile.am +echo '$(am__empty)' >> Makefile.am +rm -f t + +test $(wc -l