run.in

   1 #!/usr/bin/env bash
   2 # libnbd 'run' programs locally script
   3 # Copyright Red Hat
   4 #
   5 # @configure_input@
   6 #
   7 # This library is free software; you can redistribute it and/or
   8 # modify it under the terms of the GNU Lesser General Public
   9 # License as published by the Free Software Foundation; either
  10 # version 2 of the License, or (at your option) any later version.
  11 #
  12 # This library is distributed in the hope that it will be useful,
  13 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  14 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15 # Lesser General Public License for more details.
  16 #
  17 # You should have received a copy of the GNU Lesser General Public
  18 # License along with this library; if not, write to the Free Software
  19 # Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  20
  21 #----------------------------------------------------------------------
  22
  23 # With this script you can run libnbd programs without needing to
  24 # install libnbd first.  You just have to do for example:
  25 #
  26 #   ./run nbdsh
  27 #
  28 # or:
  29 #
  30 #   ./run /path/to/my/libnbd/program
  31 #
  32 # or:
  33 #
  34 #   ./run python
  35 #   >>> import nbd    # locally-compiled nbd module
  36 #
  37 # This works for any C program and most non-C bindings.
  38 #
  39 # You can also compile other projects against this uninstalled libnbd
  40 # tree if those projects are using pkgconf/pkg-config:
  41 #
  42 #   ../libnbd/run ./configure
  43 #   make
  44
  45 #----------------------------------------------------------------------
  46
  47 # Function to intelligently prepend a path to an environment variable.
  48 # See http://stackoverflow.com/a/9631350
  49 prepend()
  50 {
  51     eval $1="$2\${$1:+:\$$1}"
  52 }
  53
  54 # Source and build directories (absolute paths so this works from any
  55 # directory).
  56 s="$(cd @abs_srcdir@ && pwd)"
  57 b="$(cd @abs_builddir@ && pwd)"
  58
  59 # Set the PATH to contain all libnbd binaries.
  60 prepend PATH "$b/copy"
  61 prepend PATH "$b/dump"
  62 prepend PATH "$b/fuse"
  63 prepend PATH "$b/info"
  64 prepend PATH "$b/sh"
  65 prepend PATH "$b/ublk"
  66 export PATH
  67
  68 # Set LD_LIBRARY_PATH and DYLD_LIBRARY_PATH to contain library.
  69 # For use of _DYLD_LIBRARY_PATH see sh/nbdsh.
  70 prepend LD_LIBRARY_PATH "$b/lib/.libs"
  71 prepend DYLD_LIBRARY_PATH "$b/lib/.libs"
  72 prepend _DYLD_LIBRARY_PATH "$b/lib/.libs"
  73 export LD_LIBRARY_PATH
  74 export DYLD_LIBRARY_PATH
  75 export _DYLD_LIBRARY_PATH
  76
  77 # For Python.
  78 export PYTHON="@PYTHON@"
  79 prepend PYTHONPATH "$b/python/.libs"
  80 prepend PYTHONPATH "$b/python"
  81 prepend PYTHONPATH "$s/python"
  82 export PYTHONPATH
  83
  84 # For OCaml.
  85 prepend CAML_LD_LIBRARY_PATH "$b/ocaml"
  86 export CAML_LD_LIBRARY_PATH
  87
  88 # For golang.
  89 export GOLANG="@GOLANG@"
  90 if [ -z "$CGO_CFLAGS" ]; then
  91     CGO_CFLAGS="-I$s/include -I$b"
  92 else
  93     CGO_CFLAGS="$CGO_CFLAGS -I$s/include -I$b"
  94 fi
  95 export CGO_CFLAGS
  96 if [ -z "$CGO_LDFLAGS" ]; then
  97     CGO_LDFLAGS="-L$b/lib/.libs"
  98 else
  99     CGO_LDFLAGS="$CGO_LDFLAGS -L$b/lib/.libs"
 100 fi
 101 export CGO_LDFLAGS
 102 # This implements complete pointer checking in cgo.
 103 export GODEBUG=cgocheck=2,invalidptr=1
 104 # On failure, crash (giving us a useful core dump) instead of hiding that.
 105 export GOTRACEBACK=crash
 106
 107 # Allow dependent packages to be compiled against local libnbd.
 108 prepend PKG_CONFIG_PATH "$b/lib/local"
 109 export PKG_CONFIG_PATH
 110 prepend OCAMLPATH "$b/ocaml"
 111 export OCAMLPATH
 112
 113 # Do we have libtool?  If we have it then we can use it to make
 114 # running valgrind simpler.  However don't depend on it.
 115 if libtool --help >/dev/null 2>&1; then
 116     libtool="libtool --mode=execute"
 117 fi
 118
 119 # Use valgrind?
 120 #
 121 # If we're running a binary then apply valgrind directly to it.
 122 #
 123 # If it's a shell script then we set $VG and the script must run any
 124 # valgrinded programs by using $VG explicitly (note this variable is
 125 # not set if not valgrinding).
 126 #
 127 # Unfortunately the obvious thing of running ‘file $1’ will not work
 128 # because of libtool, so we have to base this off the file extension.
 129 if [ "x$LIBNBD_VALGRIND" = "x1" ]; then
 130     _VG="valgrind --vgdb=no --leak-check=full --show-leak-kinds=all --error-exitcode=119 --suppressions=$b/valgrind/suppressions --trace-children=no --run-libc-freeres=no --num-callers=100"
 131     case "$1" in
 132         *.sh)
 133             VG="$libtool $_VG"; export VG ;;
 134         *)
 135             valgrind="$_VG" ;;
 136     esac
 137
 138     # Don't invoke malloc debugging when we are valgrinding because
 139     # it duplicates work done by valgrind and might even hide issues.
 140     #
 141     # Originally this was a workaround for:
 142     # https://sourceware.org/bugzilla/show_bug.cgi?id=28256
 143     unset GLIBC_TUNABLES
 144 fi
 145
 146 # Avoid GNOME keyring stupidity
 147 export GNOME_KEYRING_CONTROL=
 148 export GNOME_KEYRING_PID=
 149
 150 # Run the program.
 151 exec $libtool $valgrind "$@"