sb: Add support to search for a suitable version of python.

The command python has been removed from upstream python and python2
and python3 is now used. This patch wraps the commands in a shell
script that locates a suitable python to run.

Updates #3537

1 files changed, 21 insertions, 220 deletions

diff --git a/source-builder/pkg-config b/source-builder/pkg-config
index fa251e5..65ee307 100755
--- a/source-builder/pkg-config
+++ b/source-builder/pkg-config
@@ -1,226 +1,27 @@
-#! /usr/bin/env python
+#! /bin/sh
 #
 # RTEMS Tools Project (http://www.rtems.org/)
-# Copyright 2014-2016 Chris Johns (chrisj@rtems.org)
+# Copyright 2018 Chris Johns (chrisj@rtems.org)
 # All rights reserved.
 #
 # This file is part of the RTEMS Tools package in 'rtems-tools'.
 #
-# Redistribution and use in source and binary forms, with or without
-# modification, are permitted provided that the following conditions are met:
-#
-# 1. Redistributions of source code must retain the above copyright notice,
-# this list of conditions and the following disclaimer.
-#
-# 2. Redistributions in binary form must reproduce the above copyright notice,
-# this list of conditions and the following disclaimer in the documentation
-# and/or other materials provided with the distribution.
-#
-# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
-# AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-# IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-# ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
-# LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
-# CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
-# SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
-# INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
-# CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
-# ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
-# POSSIBILITY OF SUCH DAMAGE.
-#
-
-from __future__ import print_function
-
-import os
-import sys
-
-base = os.path.dirname(sys.argv[0])
-sys.path.insert(0, base + '/sb')
-
-try:
-    import argparse
-except:
-    sys.path.insert(0, base + '/sb/imports')
-    try:
-        import argparse
-    except:
-        print("Incorrect Source Builder installation", file = sys.stderr)
-        sys.exit(1)
-
-try:
-    import pkgconfig
-except ImportError:
-    print("Incorrect Source Builder installation", file = sys.stderr)
-    sys.exit(1)
-
-#
-# Make trace true to get a file of what happens and what is being asked.
-#
-trace = True
-trace_stdout = False
-logfile = 'pkg-config.log'
-out = None
-srcfd = None
-
-#
-# Write all the package source parsed to a single file.
-#
-trace_src = True
-if trace_src:
-    srcfd = open('pkg-src.txt', 'w')
-
-def src(text):
-    if srcfd:
-        srcfd.writelines(text)
-
-def log(s, lf = True):
-    global trace, logfile, out
-    if trace:
-        if out is None:
-            if logfile:
-                out = open(logfile, 'a')
-            else:
-                out = sys.stdout
-        if lf:
-            if out != sys.stdout and trace_stdout:
-                print(s)
-            print(s, file = out)
-        else:
-            if out != sys.stdout and trace_stdout:
-                print(s, end = '')
-                sys.stdout.flush()
-            print(s, end = '', file = out)
-
-def run(argv):
-
-    class version_action(argparse.Action):
-        def __call__(self, parser, namespace, values, option_string = None):
-            parts = values[0].strip().split('.')
-            for p in parts:
-                if not p.isdigit():
-                    raise error('invalid version value: %s' % (values))
-            setattr(namespace, self.dest, '.'.join(parts))
-
-    ec = 0
-
-    opts = argparse.ArgumentParser(prog = 'pkg-config', description = 'Package Configuration.')
-    opts.add_argument('libraries', metavar='lib', type = str,  help = 'a library', nargs = '*')
-    opts.add_argument('--modversion', dest = 'modversion', action = 'store', default = None,
-                      help = 'Requests that the version information of the libraries.')
-    opts.add_argument('--print-errors', dest = 'print_errors', action = 'store_true',
-                      default = False,
-                      help = 'Print any errors.')
-    opts.add_argument('--short-errors', dest = 'short_errors', action = 'store_true',
-                      default = False,
-                      help = 'Make error messages short.')
-    opts.add_argument('--silence-errors', dest = 'silence_errors', action = 'store_true',
-                      default = False,
-                      help = 'Do not print any errors.')
-    opts.add_argument('--errors-to-stdout', dest = 'errors_to_stdout', action = 'store_true',
-                      default = False,
-                      help = 'Print errors to stdout rather than stderr.')
-    opts.add_argument('--cflags', dest = 'cflags', action = 'store_true',
-                      default = False,
-                      help = 'This prints pre-processor and compile flags required to' \
-                             ' compile the package(s)')
-    opts.add_argument('--libs', dest = 'libs', action = 'store_true',
-                      default = False,
-                      help = 'This option is identical to "--cflags", only it prints the' \
-                             ' link flags.')
-    opts.add_argument('--libs-only-L', dest = 'libs_only_L', action = 'store_true',
-                      default = False,
-                      help = 'This prints the -L/-R part of "--libs".')
-    opts.add_argument('--libs-only-l', dest = 'libs_only_l', action = 'store_true',
-                      default = False,
-                      help = 'This prints the -l part of "--libs".')
-    opts.add_argument('--variable', dest = 'variable', action = 'store',
-                      nargs = 1, default = None,
-                      help = 'This returns the value of a variable.')
-    opts.add_argument('--define-variable', dest = 'define_variable', action = 'store',
-                      nargs = 1, default = None,
-                      help = 'This sets a global value for a variable')
-    opts.add_argument('--uninstalled', dest = 'uninstalled', action = 'store_true',
-                      default = False,
-                      help = 'Ignored')
-    opts.add_argument('--atleast-pkgconfig-version', dest = 'atleast_pkgconfig_version',
-                      action = 'store', nargs = 1, default = None,
-                      help = 'Check the version of package config. Always ok.')
-    opts.add_argument('--exists', dest = 'exists', action = 'store_true',
-                      default = False,
-                      help = 'Test if a library is present')
-    opts.add_argument('--atleast-version', dest = 'atleast_version',
-                      action = version_action, nargs = 1, default = None,
-                      help = 'The package is at least this version.')
-    opts.add_argument('--exact-version', dest = 'exact_version', action = version_action,
-                       nargs = 1, default = None,
-                        help = 'The package is the exact version.')
-    opts.add_argument('--max-version', dest = 'max_version', action = version_action,
-                      nargs = 1, default = None,
-                      help = 'The package is no later than this version.')
-    opts.add_argument('--msvc-syntax', dest = 'msvc_syntax', action = 'store_true',
-                      default = False,
-                      help = 'Ignored')
-    opts.add_argument('--dont-define-prefix', dest = 'dont_define_prefix', action = 'store_true',
-                      default = False,
-                      help = 'Ignored')
-    opts.add_argument('--prefix-variable', dest = 'prefix', action = 'store',
-                      nargs = 1, default = pkgconfig.default_prefix(),
-                      help = 'Define the prefix.')
-    opts.add_argument('--static', dest = 'static', action = 'store_true',
-                      default = False,
-                      help = 'Output libraries suitable for static linking')
-    opts.add_argument('--dump', dest = 'dump', action = 'store_true',
-                      default = False,
-                      help = 'Dump the package if one is found.')
-
-    args = opts.parse_args(argv[1:])
-
-    if (args.exists and (args.exact_version or args.max_version)) or \
-            (args.exact_version and (args.exists or args.max_version)) or \
-            (args.max_version and (args.exists or args.exact_version)):
-        raise error('only one of --exists, --exact-version, or --max-version')
-
-    if args.dont_define_prefix:
-        args.prefix = pkgconfig.default_prefix(False)
-
-    exists = False
-
-    ec = 1
-
-    if args.atleast_pkgconfig_version:
-        ec = 0
-    else:
-        ec, pkg, flags = pkgconfig.check_package(args.libraries, args, log, src)
-        if ec == 0:
-            if args.cflags:
-                if len(flags['cflags']):
-                    print(flags['cflags'])
-                    log('cflags: %s' % (flags['cflags']))
-                else:
-                    log('cflags: empty')
-            if args.libs:
-                if len(flags['libs']):
-                    print(flags['libs'])
-                    log('libs: %s' % (flags['libs']))
-                else:
-                    log('libs: empty')
-
-    #pkgconfig.package.dump_loaded()
-
-    return ec
-
-try:
-    log('-' * 40)
-    log('pkg-config', lf = False)
-    for a in sys.argv[1:]:
-        log(' "%s"' % (a), lf = False)
-    log('')
-    ec = run(sys.argv)
-    log('ec = %d' % (ec))
-except ImportError:
-    print("incorrect package config installation", file = sys.stderr)
-    sys.exit(1)
-except pkgconfig.error as e:
-    print('error: %s' % (e), file = sys.stderr)
-    sys.exit(1)
-sys.exit(ec)
+# Permission to use, copy, modify, and/or distribute this software for any
+# purpose with or without fee is hereby granted, provided that the above
+# copyright notice and this permission notice appear in all copies.
+#
+# THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+# WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+# MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+# ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+# WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+# ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+# OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+#
+set -e
+base=$(dirname $0)
+PYTHON_CMD=${base}/sb/cmd-pkg-config.py
+if test -f ${base}/sb/python-wrapper.sh; then
+  . ${base}/sb/python-wrapper.sh
+fi
+echo "error: python wrapper not found"