t/parallel-am.sh

   1 #! /bin/sh
   2 # Copyright (C) 2008-2024 Free Software Foundation, Inc.
   3 #
   4 # This program is free software; you can redistribute it and/or modify
   5 # it under the terms of the GNU General Public License as published by
   6 # the Free Software Foundation; either version 2, or (at your option)
   7 # any later version.
   8 #
   9 # This program is distributed in the hope that it will be useful,
  10 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 # GNU General Public License for more details.
  13 #
  14 # You should have received a copy of the GNU General Public License
  15 # along with this program.  If not, see <https://www.gnu.org/licenses/>.
  16
  17 # Test parallel automake execution.
  18
  19 # There are several hypotheses to be tested:  Independently of the number
  20 # of threads used by automake,
  21 # 0) the generated Makefile.in files must be identical without --add-missing,
  22 # 1) the Makefile.in that distributes auxiliary files must be generated
  23 #    after all other ones, so all installed aux files are caught,
  24 # 2) normal automake output should have identical content and be ordered
  25 #    in the same way, when --add-missing is not passed, or when
  26 #    --add-missing is passed but there are no concurrent file requirements
  27 #    (i.e., two Makefile.am files call for the same needed aux file)
  28 # 3) normal automake output should be identical and ordered in the same way
  29 #    with --add-missing, even with concurrent file requirements, and the
  30 #    installation of aux files should be race-free,
  31 # 4) warning and normal error output should be identical, in that duplicate
  32 #    warnings should be omitted in the same way as without threads,
  33 # 5) fatal error and debug messages could be identical.  This is not
  34 #    intended, though.
  35 #
  36 # This test checks (0), (1), and (2).  See sister tests for further coverage.
  37
  38 required=perl-threads
  39 . test-init.sh
  40
  41 cat > configure.ac << 'END'
  42 AC_INIT([parallel-am], [1.0])
  43 AC_CONFIG_AUX_DIR([build-aux])
  44 AM_INIT_AUTOMAKE
  45 AC_PROG_CC
  46 AM_PATH_LISPDIR
  47 AM_PATH_PYTHON
  48 AC_CONFIG_FILES([Makefile])
  49 END
  50
  51 cat > Makefile.am << 'END'
  52 SUBDIRS =
  53 END
  54
  55 list='1 2 3 4 5 6 7 8 9'
  56 for i in $list; do
  57   echo "AC_CONFIG_FILES([sub$i/Makefile])" >> configure.ac
  58   echo "SUBDIRS += sub$i" >> Makefile.am
  59   mkdir sub$i
  60   echo > sub$i/Makefile.am
  61 done
  62 # Use an include chain to cause a nontrivial location object to be
  63 # serialized through a thread queue.
  64 echo 'include foo.am' >> sub7/Makefile.am
  65 echo 'include bar.am' > sub7/foo.am
  66 echo 'python_PYTHON = foo.py' > sub7/bar.am
  67 echo 'lisp_LISP = foo.el' >> sub8/Makefile.am
  68 echo 'bin_PROGRAMS = p' >> sub9/Makefile.am
  69
  70 rm -f install-sh missing depcomp
  71 mkdir build-aux
  72
  73 $ACLOCAL
  74
  75 # This test may have to be run several times in order to expose the
  76 # race that, when the last Makefile.in (the toplevel one) is created
  77 # before the other ones have finished, not all auxiliary files may
  78 # be installed yet, thus some may not be distributed.
  79 #
  80 # Further, automake output should be stable.
  81
  82 # Generate expected output using the non-threaded code.
  83 unset AUTOMAKE_JOBS
  84 AUTOMAKE_run --add-missing
  85 mv stderr expected
  86 Makefile_ins=$(find . -name Makefile.in)
  87 for file in $Makefile_ins; do
  88   mv $file $file.exp
  89 done
  90
  91 AUTOMAKE_JOBS=5
  92 export AUTOMAKE_JOBS
  93
  94 for run in 1 2 3 4 5 6 7; do
  95   rm -f build-aux/* sub*/Makefile.in
  96   AUTOMAKE_run --add-missing
  97   diff stderr expected
  98   for file in $Makefile_ins; do
  99     diff $file $file.exp
 100   done
 101 done
 102
 103 :