2 # Automatically compute some dependencies for the hand-written tests
3 # of the Automake testsuite. Also, automatically generate some more
4 # tests from them (for particular cases/setups only).
6 # Copyright (C) 2011-2013 Free Software Foundation, Inc.
8 # This program is free software; you can redistribute it and/or modify
9 # it under the terms of the GNU General Public License as published by
10 # the Free Software Foundation; either version 2, or (at your option)
13 # This program is distributed in the hope that it will be useful,
14 # but WITHOUT ANY WARRANTY; without even the implied warranty of
15 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
16 # GNU General Public License for more details.
18 # You should have received a copy of the GNU General Public License
19 # along with this program. If not, see <http://www.gnu.org/licenses/>.
21 #--------------------------------------------------------------------------
23 use warnings FATAL => "all";
25 use File::Basename ();
26 use constant TRUE => 1;
27 use constant FALSE => 0;
29 my $me = File::Basename::basename $0;
31 # For use in VPATH builds.
34 # The testsuite subdirectory, relative to the top-lever source directory.
37 # Where testsuite-related helper scripts, data files and shell libraries
38 # are placed. Relative to the top-lever source directory.
39 my $testauxdir = "$testdir/ax";
41 #--------------------------------------------------------------------------
48 $text =~ s/^$indentation//gm;
52 sub atomic_write ($$;$)
54 my ($outfile, $func) = (shift, shift);
55 my $perms = @_ > 0 ? shift : 0777;
56 my $tmpfile = "$outfile-t";
57 foreach my $f ($outfile, $tmpfile)
59 unlink $f or die "$me: cannot unlink '$f': $!\n"
62 open (my $fh, ">$tmpfile")
63 or die "$me: can't write to '$tmpfile': $!\n";
66 or die "$me: closing '$tmpfile': $!\n";
67 chmod ($perms & ~umask, $tmpfile)
68 or die "$me: cannot change perms for '$tmpfile': $!\n";
69 rename ($tmpfile, $outfile)
70 or die "$me: renaming '$tmpfile' -> '$outfile: $!\n'";
75 my ($re, $file) = (shift, shift);
76 # Try both builddir and srcdir, with builddir first, to play nice
78 open (FH, "<$file") or open (FH, "<$srcdir/$file")
79 or die "$me: cannot open file '$file': $!\n";
81 while (defined (my $line = <FH>))
89 close FH or die "$me: cannot close file '$file': $!\n";
93 sub write_wrapper_script ($$$)
95 my ($file_handle, $wrapped_test, $shell_setup_code, $creator_name) = @_;
96 print $file_handle unindent <<EOF;
98 # This file has been automatically generated. DO NOT EDIT BY HAND!
101 # In the spirit of VPATH, we prefer a test in the build tree
102 # over one in the source tree.
103 for dir in . "\$am_top_srcdir"; do
104 if test -f "\$dir/$wrapped_test"; then
105 echo "\$0: will source \$dir/$wrapped_test"
106 . "\$dir/$wrapped_test"; exit \$?
109 echo "\$0: cannot find wrapped test '$wrapped_test'" >&2
114 sub get_list_of_tests ()
116 my $make = defined $ENV{MAKE} ? $ENV{MAKE} : "make";
117 # Unset MAKEFLAGS, for when we are called from make itself.
118 my $cmd = "MAKEFLAGS= && unset MAKEFLAGS && cd '$srcdir' && "
119 . "$make -s -f $testdir/list-of-tests.mk print-list-of-tests";
120 my @tests_list = split /\s+/, `$cmd`;
121 die "$me: cannot get list of tests\n" unless $? == 0 && @tests_list;
123 foreach my $test (@tests_list)
125 # Respect VPATH builds.
126 next if -f $test || -f "$srcdir/$test";
127 warn "$me: test '$test' not found\n";
130 die "$me: some test scripts not found\n" if !$ok;
134 sub parse_options (@)
136 use Getopt::Long qw/GetOptions/;
138 GetOptions ('srcdir=s' => \$srcdir) or die "$me: usage error\n";
139 die "$me: too many arguments\n" if @ARGV > 0;
140 die "$me: srcdir '$srcdir': not a directory\n" unless -d $srcdir;
143 #--------------------------------------------------------------------------
149 line_matcher => qr/^\s*required=.*\blibtool/,
150 nodist_prereqs => "$testdir/libtool-macros.log",
154 line_matcher => qr/^\s*required=.*\bgettext/,
155 nodist_prereqs => "$testdir/gettext-macros.log",
159 line_matcher => qr/^\s*required=.*\bpkg-config/,
160 nodist_prereqs => "$testdir/pkg-config-macros.log",
162 use_trivial_test_driver =>
164 line_matcher => qr/\btrivial-test-driver\b/,
165 dist_prereqs => "$testauxdir/trivial-test-driver",
167 check_testsuite_summary =>
169 line_matcher => qr/\btestsuite-summary-checks\.sh\b/,
170 dist_prereqs => "$testauxdir/testsuite-summary-checks.sh",
172 extract_testsuite_summary =>
174 line_matcher => qr/\bextract-testsuite-summary\.pl\b/,
175 dist_prereqs => "$testauxdir/extract-testsuite-summary.pl",
177 check_tap_testsuite_summary =>
179 line_matcher => qr/\btap-summary-aux\.sh\b/,
180 dist_prereqs => "$testauxdir/tap-summary-aux.sh",
182 on_tap_with_common_setup =>
184 line_matcher => qr/\btap-setup\.sh\b/,
185 dist_prereqs => "$testauxdir/tap-setup.sh",
186 nodist_prereqs => "$testdir/tap-common-setup.log",
190 line_matcher => qr/\bdepcomp\.sh\b/,
191 dist_prereqs => "$testauxdir/depcomp.sh",
195 #--------------------------------------------------------------------------
197 my %test_generators =
200 # Any test script in the Automake testsuite that checks features of
201 # the Automake-provided parallel testsuite harness might want to
202 # define a sibling test that does similar checks, but for the old
203 # serial testsuite harness instead.
205 # Individual tests can request the creation of such a sibling by
206 # making the string "try-with-serial-tests" appear any line of the
209 serial_testsuite_harness =>
211 line_matcher => qr/\btry-with-serial-tests\b/,
212 shell_setup_code => 'am_serial_tests=yes',
215 # For each test script in the Automake testsuite that tests features
216 # of one or more automake-provided shell script from the 'lib/'
217 # subdirectory by running those scripts directly (i.e., not thought
218 # make calls and automake-generated makefiles), define a sibling test
219 # that does likewise, but running the said script with the configure
220 # time $SHELL instead of the default system shell /bin/sh.
222 # A test is considered a candidate for sibling-generation if it calls
223 # the 'get_shell_script' function anywhere.
225 # Individual tests can prevent the creation of such a sibling by
226 # explicitly setting the '$am_test_prefer_config_shell' variable
227 # to either "yes" or "no".
228 # The rationale for this is that if the variable is set to "yes",
229 # the test already uses $SHELL, so that a sibling would be just a
230 # duplicate; while if the variable is set to "no", the test doesn't
231 # support, or is not meant to use, $SHELL to run the script under
232 # testing, and forcing it to do so in the sibling would likely
233 # cause a spurious failure.
235 prefer_config_shell =>
238 qr/(^|\s)get_shell_script\s/,
240 qr/\bam_test_prefer_config_shell=/,
242 'am_test_prefer_config_shell=yes',
245 # Tests on tap support should be run with both the perl and awk
246 # implementations of the TAP driver (they run with the awk one
252 qr<(?:\bfetch_tap_driver\b|[\s/]tap-setup\.sh\b)>,
254 qr/\bam_tap_implementation=/,
256 'am_tap_implementation=perl',
260 #--------------------------------------------------------------------------
264 my @all_tests = get_list_of_tests;
265 my @generated_tests = (); # Will be updated later.
267 print "## -*- Makefile -*-\n";
268 print "## Generated by $me. DO NOT EDIT BY HAND!\n\n";
272 ## --------------------------------------------- ##
273 ## Autogenerated tests and their dependencies. ##
274 ## --------------------------------------------- ##
278 # A test script '$test' can possibly match more than one condition, so
279 # for each tests we need to keep a list of generated wrapper tests.
280 # Since what defines these wrapper scripts is the set of initializations
281 # that are issued before sourcing the original, wrapped tests, these
282 # initializations is what we put in our list entries.
283 # The list will be saved in the hash entry '$wrapper_setups{$test}'.
284 my %wrapper_setups = ();
285 foreach my $test (@all_tests)
288 foreach my $x (values %test_generators)
291 if not line_match $x->{line_matcher}, $test;
293 if $x->{line_rejecter} and line_match $x->{line_rejecter}, $test;
294 @setups = map { ($_, "$_\n$x->{shell_setup_code}") } @setups;
296 @setups = grep { $_ ne '' } @setups;
297 $wrapper_setups{$test} = \@setups if @setups;
299 # And now create all the wrapper tests.
300 while (my ($wrapped_test, $setup_list) = each %wrapper_setups)
302 (my $base = $wrapped_test) =~ s/\.([^.]*)$//;
303 my $suf = $1 or die "$me: test '$wrapped_test' lacks a suffix\n";
305 foreach my $setup (@$setup_list)
308 my $wbase = "$base-w" . ($count > 1 ? $count : '');
309 my $wrapper_test = "$wbase.$suf";
310 # Register wrapper test as "autogenerated".
311 push @generated_tests, $wrapper_test;
312 # Create wrapper test.
313 atomic_write $wrapper_test,
314 sub { write_wrapper_script $_[0], $wrapped_test,
317 # The generated test works by sourcing the original test, so that
318 # it has to be re-run every time that changes ...
319 print "$wbase.log: $wrapped_test\n";
320 # ... but also every time the prerequisites of the wrapped test
321 # changes. The simpler (although suboptimal) way to do so is to
322 # ensure that the wrapped tests runs before the wrapper one (in
323 # case it needs to be re-run *at all*).
324 # FIXME: we could maybe refactor the script to find a more
325 # granular way to express such implicit dependencies.
326 print "$wbase.log: $base.log\n";
332 ## ---------------------------------------------------- ##
333 ## Ad-hoc autogenerated tests and their dependencies. ##
334 ## ---------------------------------------------------- ##
338 print "## Tests on automatic dependency tracking (see 'depcomp.sh').\n";
340 # Key: depmode, value: list of required programs.
345 makedepend => ["cc", "makedepend"],
346 dashmstdout => ["gcc"],
348 # This was for older (pre-3.x) GCC versions (newer versions
349 # have depmode "gcc3"). But other compilers use this depmode
350 # as well (for example, the IMB xlc/xlC compilers, and the HP
351 # C compiler, see 'lib/depcomp' for more info), so it's not
352 # obsolete, and it's worth giving it some coverage.
354 # This is for older (pre-7) msvc versions. Newer versions
355 # have depmodes "msvc7" and "msvc7msys".
356 msvisualcpp => ["cl", "cygpath"],
357 msvcmsys => ["cl", "mingw"],
360 foreach my $lt (TRUE, FALSE)
362 foreach my $m (keys %depmodes)
364 my $planned = ($lt && $m eq "auto") ? 84 : 28;
368 $lt ? ("libtoolize",) : (),
372 "am_create_testdir=empty",
374 "depcomp_with_libtool=" . ($lt ? "yes" : "no"),
376 my $test = "$testdir/depcomp" . ($lt ? "-lt-" : "-") . "$m.tap";
377 # Register wrapper test as "autogenerated" ...
378 push @generated_tests, $test;
380 atomic_write ($test, sub
382 my $file_handle = shift;
383 print $file_handle unindent <<EOF;
385 # Automatically generated test. DO NOT EDIT BY HAND!
398 # Update generated makefile fragment to account for all the generated tests.
399 print "generated_TESTS =\n";
400 map { print "generated_TESTS += $_\n" } @generated_tests;
402 # The test scripts are scanned for automatic dependency generation *after*
403 # the generated tests have been created, so they too can be scanned. To
404 # do so correctly, we need to update the list in '@all_tests' to make it
405 # comprise also the freshly-generated tests.
407 push @all_tests, @generated_tests;
411 ## ----------------------------- ##
412 ## Autogenerated dependencies. ##
413 ## ----------------------------- ##
417 while (my ($k, $x) = each %deps_extractor)
419 my $dist_prereqs = $x->{dist_prereqs} || "";
420 my $nodist_prereqs = $x->{nodist_prereqs} || "";
421 my @tests = grep { line_match $x->{line_matcher}, $_ } @all_tests;
422 map { s/\.[^.]*$//; s/$/\.log/; } (my @logs = @tests);
423 print "## Added by deps-extracting key '$k'.\n";
424 ## The list of all tests which have a dependency detected by the
426 print join(" \\\n ", "${k}_TESTS =", @tests) . "\n";
427 print "EXTRA_DIST += $dist_prereqs\n";
428 map { print "$_: $dist_prereqs $nodist_prereqs\n" } @logs;