t/remake-subdir-long-time.sh

   1 #! /bin/sh
   2 # Copyright (C) 2011-2018 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 # Check that remake rules from subdirectories do not hang or cycle
  18 # endlessly, even with build systems that takes several seconds to
  19 # rebuild the Makefiles.
  20 # This test tries to ensure a long-enough rebuild time by introducing
  21 # an explicit delay in the build process.
  22 # Suggestion by Ralf Wildenhues.
  23
  24 . test-init.sh
  25
  26 cat > configure.ac <<END
  27 AC_INIT([$me], [1.0])
  28 AM_INIT_AUTOMAKE([foreign -Wall -Werror])
  29 AC_CONFIG_FILES([Makefile sub/Makefile])
  30 AC_SUBST([MAGIC], [magic])
  31 AC_OUTPUT
  32 END
  33
  34 echo SUBDIRS = sub > Makefile.am
  35 mkdir sub
  36 : > sub/Makefile.am
  37
  38 # Both aclocal and automake are expected to run one and just one time.
  39 # Create and use wrappers that will verify that.
  40
  41 ocwd=$(pwd) || fatal_ "cannot get current working directory"
  42
  43 mkdir bin
  44
  45 cat > bin/automake <<END
  46 #!/bin/sh
  47 set -e
  48 PATH='$PATH'; export PATH
  49 sentinel='$ocwd/automake-has-run'
  50 if test -f "\$sentinel"; then
  51   echo "Automake has been run more than one time" >&2
  52   exit 1
  53 else
  54   echo automake has run > "\$sentinel"
  55 fi
  56 $sleep; $sleep;
  57 exec $AUTOMAKE \${1+"\$@"}
  58 END
  59 chmod a+x bin/automake
  60
  61 cat > bin/aclocal <<END
  62 #!/bin/sh
  63 set -e
  64 PATH='$PATH'; export PATH
  65 sentinel='$ocwd/aclocal-has-run'
  66 if test -f "\$sentinel"; then
  67   echo "Aclocal has been run more than one time" >&2
  68   exit 1
  69 else
  70   echo aclocal has run > "\$sentinel"
  71 fi
  72 $sleep; $sleep;
  73 exec $ACLOCAL \${1+"\$@"}
  74 END
  75 chmod a+x bin/aclocal
  76
  77 # Just to be sure.
  78 cp bin/automake bin/automake-$APIVERSION
  79 cp bin/aclocal bin/aclocal-$APIVERSION
  80
  81 PATH=$ocwd/bin$PATH_SEPARATOR$PATH; export PATH
  82
  83 AUTOMAKE=automake ACLOCAL=aclocal; export AUTOMAKE ACLOCAL
  84
  85 $ACLOCAL  # Should use or just-defined wrapper.
  86 $AUTOMAKE # Likewise.
  87 $AUTOCONF
  88
  89 # Sanity check: the wrappers have been used.
  90 test -f automake-has-run
  91 test -f aclocal-has-run
  92 rm -f automake-has-run aclocal-has-run
  93
  94 ./configure
  95 # Sanity check: Makefile doesn't get updated uselessly.
  96 run_make ACLOCAL=false AUTOMAKE=false AUTOCONF=false
  97
  98 $sleep
  99 sed "s|magic|magic2|" configure.ac > t
 100 mv -f t configure.ac
 101
 102 cd sub
 103 run_make Makefile AUTOMAKE="$AUTOMAKE" ACLOCAL="$ACLOCAL"
 104 cd ..
 105
 106 # For debugging.
 107 ls -l . sub
 108 grep -i magic configure Makefile.in Makefile sub/Makefile.in sub/Makefile
 109 # Sanity checks.
 110 $FGREP magic2 configure
 111 $FGREP magic2 Makefile
 112 $FGREP magic2 sub/Makefile
 113
 114 :