git-commit-vandalism/t/lib-git-svn.sh
SZEDER Gábor fa84058180 test-lib-functions: introduce the 'test_set_port' helper function
Several test scripts run daemons like 'git-daemon' or Apache, and
communicate with them through TCP sockets.  To have unique ports where
these daemons are accessible, the ports are usually the number of the
corresponding test scripts, unless the user overrides them via
environment variables, and thus all those tests and test libs contain
more or less the same bit of one-liner boilerplate code to find out
the port.  The last patch in this series will make this a bit more
complicated.

Factor out finding the port for a daemon into the common helper
function 'test_set_port' to avoid repeating ourselves.

Take special care of test scripts with "low" numbers:

  - Test numbers below 1024 would result in a port that's only usable
    as root, so set their port to '10000 + test-nr' to make sure it
    doesn't interfere with other tests in the test suite.  This makes
    the hardcoded port number in 't0410-partial-clone.sh' unnecessary,
    remove it.

  - The shell's arithmetic evaluation interprets numbers with leading
    zeros as octal values, which means that test number below 1000 and
    containing the digits 8 or 9 will trigger an error.  Remove all
    leading zeros from the test numbers to prevent this.

Note that the 'git p4' tests are unlike the other tests involving
daemons in that:

  - 'lib-git-p4.sh' doesn't use the test's number for unique port as
    is, but does a bit of additional arithmetic on top [1].

  - The port is not overridable via an environment variable.

With this patch even 'git p4' tests will use the test's number as
default port, and it will be overridable via the P4DPORT environment
variable.

[1] Commit fc00233071 (git-p4 tests: refactor and cleanup, 2011-08-22)
    introduced that "unusual" unique port computation without
    explaining why it was necessary (as opposed to simply using the
    test number as is).  It seems to be just unnecessary complication,
    and in any case that commit came way before the "test nr as unique
    port" got "standardized" for other daemons in commits c44132fcf3
    (tests: auto-set git-daemon port, 2014-02-10), 3bb486e439 (tests:
    auto-set LIB_HTTPD_PORT from test name, 2014-02-10), and
    bf9d7df950 (t/lib-git-svn.sh: improve svnserve tests with parallel
    make test, 2017-12-01).

Signed-off-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-01-07 09:24:06 -08:00

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. ./test-lib.sh
if test -n "$NO_SVN_TESTS"
then
skip_all='skipping git svn tests, NO_SVN_TESTS defined'
test_done
fi
if ! test_have_prereq PERL; then
skip_all='skipping git svn tests, perl not available'
test_done
fi
GIT_DIR=$PWD/.git
GIT_SVN_DIR=$GIT_DIR/svn/refs/remotes/git-svn
SVN_TREE=$GIT_SVN_DIR/svn-tree
test_set_port SVNSERVE_PORT
svn >/dev/null 2>&1
if test $? -ne 1
then
skip_all='skipping git svn tests, svn not found'
test_done
fi
svnrepo=$PWD/svnrepo
export svnrepo
svnconf=$PWD/svnconf
export svnconf
perl -w -e "
use SVN::Core;
use SVN::Repos;
\$SVN::Core::VERSION gt '1.1.0' or exit(42);
system(qw/svnadmin create --fs-type fsfs/, \$ENV{svnrepo}) == 0 or exit(41);
" >&3 2>&4
x=$?
if test $x -ne 0
then
if test $x -eq 42; then
skip_all='Perl SVN libraries must be >= 1.1.0'
elif test $x -eq 41; then
skip_all='svnadmin failed to create fsfs repository'
else
skip_all='Perl SVN libraries not found or unusable'
fi
test_done
fi
rawsvnrepo="$svnrepo"
svnrepo="file://$svnrepo"
poke() {
test-tool chmtime +1 "$1"
}
# We need this, because we should pass empty configuration directory to
# the 'svn commit' to avoid automated property changes and other stuff
# that could be set from user's configuration files in ~/.subversion.
svn_cmd () {
[ -d "$svnconf" ] || mkdir "$svnconf"
orig_svncmd="$1"; shift
if [ -z "$orig_svncmd" ]; then
svn
return
fi
svn "$orig_svncmd" --config-dir "$svnconf" "$@"
}
maybe_start_httpd () {
loc=${1-svn}
test_tristate GIT_SVN_TEST_HTTPD
case $GIT_SVN_TEST_HTTPD in
true)
. "$TEST_DIRECTORY"/lib-httpd.sh
LIB_HTTPD_SVN="$loc"
start_httpd
;;
*)
stop_httpd () {
: noop
}
;;
esac
}
convert_to_rev_db () {
perl -w -- - "$@" <<\EOF
use strict;
@ARGV == 2 or die "usage: convert_to_rev_db <input> <output>";
open my $wr, '+>', $ARGV[1] or die "$!: couldn't open: $ARGV[1]";
open my $rd, '<', $ARGV[0] or die "$!: couldn't open: $ARGV[0]";
my $size = (stat($rd))[7];
($size % 24) == 0 or die "Inconsistent size: $size";
while (sysread($rd, my $buf, 24) == 24) {
my ($r, $c) = unpack('NH40', $buf);
my $offset = $r * 41;
seek $wr, 0, 2 or die $!;
my $pos = tell $wr;
if ($pos < $offset) {
for (1 .. (($offset - $pos) / 41)) {
print $wr (('0' x 40),"\n") or die $!;
}
}
seek $wr, $offset, 0 or die $!;
print $wr $c,"\n" or die $!;
}
close $wr or die $!;
close $rd or die $!;
EOF
}
require_svnserve () {
test_tristate GIT_TEST_SVNSERVE
if ! test "$GIT_TEST_SVNSERVE" = true
then
skip_all='skipping svnserve test. (set $GIT_TEST_SVNSERVE to enable)'
test_done
fi
}
start_svnserve () {
svnserve --listen-port $SVNSERVE_PORT \
--root "$rawsvnrepo" \
--listen-once \
--listen-host 127.0.0.1 &
}
prepare_a_utf8_locale () {
a_utf8_locale=$(locale -a | sed -n '/\.[uU][tT][fF]-*8$/{
p
q
}')
if test -n "$a_utf8_locale"
then
test_set_prereq UTF8
else
say "# UTF-8 locale not available, some tests are skipped"
fi
}