t/man4.sh

   1 #! /bin/sh
   2 # Copyright (C) 2008-2012 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 <http://www.gnu.org/licenses/>.
  16
  17 # Ensure 'make dist' fails when help2man replacement man pages are created.
  18 #
  19 # The assumption here is the following: if the developer uses help2man to
  20 # generate man pages from --help output, then these man pages may not be
  21 # stored in VCS.  However, they should be distributed, so that the end user
  22 # that receives the tarball doesn't have to install help2man.  If they are
  23 # not distributed, then the developer should make help2man a prerequisite
  24 # to building the package from a tarball, e.g., with a configure check for
  25 # help2man that errors out if it is unavailable.  In both cases it is
  26 # sufficient to check only distributed man pages.
  27 #
  28 # Idea of this whole shenanigan is to allow somebody to check out sources from
  29 # a VCS and build and install them without needing help2man installed.  The
  30 # installed man pages will be bogus in this case.  Typically, this happens
  31 # when developers ask users to try out a fix from VCS; the developers themselves
  32 # will usually have help2man installed (or should install it).
  33
  34 . ./defs || exit 1
  35
  36 cat > Makefile.am << 'END'
  37 dist_man_MANS = $(srcdir)/foo.1 bar.1
  38 dist_bin_SCRIPTS = foo bar
  39 $(srcdir)/foo.1:
  40         $(HELP2MAN) --output=$@ $(srcdir)/foo
  41 bar.1:
  42         $(HELP2MAN) --output=$(srcdir)/bar.1 $(srcdir)/bar
  43 END
  44
  45 cat >>configure.ac <<'END'
  46 AM_MISSING_PROG([HELP2MAN], [help2man])
  47 AC_OUTPUT
  48 END
  49
  50 cat > foo <<'END'
  51 #! /bin/sh
  52 while test $# -gt 0; do
  53   case $1 in
  54     -h | --help) echo "usage: $0 [OPTIONS]..."; exit 0;;
  55     -v | --version) echo "$0 1.0"; exit 0;;
  56   esac
  57   shift
  58 done
  59 END
  60 cp foo bar
  61 chmod +x foo bar
  62
  63 mkdir bin
  64 cat > bin/help2man <<'END'
  65 #! /bin/sh
  66 # Fake help2man script that lets 'missing' think it is not installed.
  67 exit 127
  68 END
  69 chmod +x bin/help2man
  70 PATH=$(pwd)/bin$PATH_SEPARATOR$PATH
  71
  72 grep_error_messages()
  73 {
  74   grep ' man pages contain.*missing help2man.* replacement text' stderr \
  75    && grep 'install help2man' stderr \
  76    && grep 'regenerate the man pages' stderr \
  77    || exit 1
  78 }
  79
  80 $ACLOCAL
  81 $AUTOMAKE
  82 $AUTOCONF
  83
  84 ./configure
  85 $MAKE
  86 $MAKE dist 2>stderr && { cat stderr >&2; exit 1; }
  87 cat stderr >&2
  88 grep_error_messages
  89 $MAKE distcheck 2>stderr && { cat stderr >&2; exit 1; }
  90 cat stderr >&2
  91 grep_error_messages
  92 $MAKE distclean
  93
  94 mkdir build
  95 cd build
  96 ../configure
  97 $MAKE
  98 $MAKE dist 2>stderr && { cat stderr >&2; exit 1; }
  99 cat stderr >&2
 100 grep_error_messages
 101 $MAKE distcheck 2>stderr && { cat stderr >&2; exit 1; }
 102 cat stderr >&2
 103 grep_error_messages
 104
 105 :