[libsoup] Visual Studio builds: Add scripts to generate .pc files

[Chun-wei Fan <fanchunwei src gnome org>]

commit 6e1b26b78510e52b5546feb37f1fa8c1b324e7ab
Author: Chun-wei Fan <fanchunwei src gnome org>
Date:   Thu Mar 9 16:46:29 2017 +0800

    Visual Studio builds: Add scripts to generate .pc files
    
    This adds scripts to generate the .pc files that are suitable for use on
    Visual Studio builds, which will become useful when one wants to:
    
    -Generate introspection files on items that depend on libsoup.
    -Using libsoup in build systems such as Meson.
    
    Integration with the Visual Studio projects will be added shortly.

 win32/Makefile.am |    2 +
 win32/pc_base.py  |  124 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 win32/souppc.py   |   32 ++++++++++++++
 3 files changed, 158 insertions(+), 0 deletions(-)
---
diff --git a/win32/Makefile.am b/win32/Makefile.am
index f13ab33..e1d5759 100644
--- a/win32/Makefile.am
+++ b/win32/Makefile.am
@@ -25,7 +25,9 @@ GENERATED_ITEMS =
 endif
 
 EXTRA_DIST =                           \
+       pc_base.py                      \
        replace.py                      \
+       souppc.py                       \
        soup_version_h.py               \
        detectenv-msvc.mak              \
        introspection-msvc.mak          \
diff --git a/win32/pc_base.py b/win32/pc_base.py
new file mode 100644
index 0000000..f7976e8
--- /dev/null
+++ b/win32/pc_base.py
@@ -0,0 +1,124 @@
+#!/usr/bin/python
+#
+# Simple utility script to generate the basic info
+# needed in a .pc (pkg-config) file, used especially
+# for introspection purposes
+
+# This can be used in various projects where
+# there is the need to generate .pc files,
+# and is copied from GLib's $(srcroot)/win32
+
+# Author: Fan, Chun-wei
+# Date: March 10, 2016
+
+import os
+import sys
+import argparse
+
+class BasePCItems:
+    def __init__(self):
+        self.base_replace_items = {}
+        self.exec_prefix = ''
+        self.includedir = ''
+        self.libdir = ''
+        self.prefix = ''
+        self.srcdir = os.path.dirname(__file__)
+        self.top_srcdir = self.srcdir + '\\..'
+        self.version = ''
+
+    def setup(self, argv, parser=None):
+        if parser is None:
+            parser = argparse.ArgumentParser(description='Setup basic .pc file info')
+        parser.add_argument('--prefix', help='prefix of the installed library',
+                            required=True)
+        parser.add_argument('--exec-prefix',
+                            help='prefix of the installed programs, \
+                                  if different from the prefix')
+        parser.add_argument('--includedir',
+                            help='includedir of the installed library, \
+                                  if different from ${prefix}/include')
+        parser.add_argument('--libdir',
+                            help='libdir of the installed library, \
+                                  if different from ${prefix}/lib')
+        parser.add_argument('--version', help='Version of the package',
+                            required=True)
+        args = parser.parse_args()
+
+        self.version = args.version
+
+        # check whether the prefix and exec_prefix are valid
+        if not os.path.exists(args.prefix):
+            raise SystemExit('Specified prefix \'%s\' is invalid' % args.prefix)
+
+        # use absolute paths for prefix
+        self.prefix = os.path.abspath(args.prefix).replace('\\','/')
+
+        # check and setup the exec_prefix
+        if getattr(args, 'exec_prefix', None) is None:
+            exec_prefix_use_shorthand = True
+            self.exec_prefix = '${prefix}'
+        else:
+            if args.exec_prefix.startswith('${prefix}'):
+                exec_prefix_use_shorthand = True
+                input_exec_prefix = args.prefix + args.exec_prefix[len('${prefix}'):]
+            else:
+                exec_prefix_use_shorthand = False
+                input_exec_prefix = args.exec_prefix
+            if not os.path.exists(input_exec_prefix):
+                raise SystemExit('Specified exec_prefix \'%s\' is invalid' %
+                                  args.exec_prefix)
+            if exec_prefix_use_shorthand is True:
+                self.exec_prefix = args.exec_prefix.replace('\\','/')
+            else:
+                self.exec_prefix = os.path.abspath(input_exec_prefix).replace('\\','/')
+
+        # check and setup the includedir
+        if getattr(args, 'includedir', None) is None:
+            self.includedir = '${prefix}/include'
+        else:
+            if args.includedir.startswith('${prefix}'):
+                includedir_use_shorthand = True
+                input_includedir = args.prefix + args.includedir[len('${prefix}'):]
+            else:
+                if args.includedir.startswith('${exec_prefix}'):
+                    includedir_use_shorthand = True
+                    input_includedir = input_exec_prefix + args.includedir[len('${exec_prefix}'):]
+                else:
+                    includedir_use_shorthand = False
+                    input_includedir = args.includedir
+            if not os.path.exists(input_includedir):
+                raise SystemExit('Specified includedir \'%s\' is invalid' %
+                                  args.includedir)
+            if includedir_use_shorthand is True:
+                self.includedir = args.includedir.replace('\\','/')
+            else:
+                self.includedir = os.path.abspath(input_includedir).replace('\\','/')
+
+        # check and setup the libdir
+        if getattr(args, 'libdir', None) is None:
+            self.libdir = '${prefix}/lib'
+        else:
+            if args.libdir.startswith('${prefix}'):
+                libdir_use_shorthand = True
+                input_libdir = args.prefix + args.libdir[len('${prefix}'):]
+            else:
+                if args.libdir.startswith('${exec_prefix}'):
+                    libdir_use_shorthand = True
+                    input_libdir = input_exec_prefix + args.libdir[len('${exec_prefix}'):]
+                else:
+                    libdir_use_shorthand = False
+                    input_libdir = args.libdir
+            if not os.path.exists(input_libdir):
+                raise SystemExit('Specified libdir \'%s\' is invalid' %
+                                             args.libdir)
+            if libdir_use_shorthand is True:
+                self.libdir = args.libdir.replace('\\','/')
+            else:
+                self.libdir = os.path.abspath(input_libdir).replace('\\','/')
+
+        # setup dictionary for replacing items in *.pc.in
+        self.base_replace_items.update({'@VERSION@': self.version})
+        self.base_replace_items.update({'@prefix@': self.prefix})
+        self.base_replace_items.update({'@exec_prefix@': self.exec_prefix})
+        self.base_replace_items.update({'@libdir@': self.libdir})
+        self.base_replace_items.update({'@includedir@': self.includedir})
diff --git a/win32/souppc.py b/win32/souppc.py
new file mode 100644
index 0000000..e5e85e8
--- /dev/null
+++ b/win32/souppc.py
@@ -0,0 +1,32 @@
+#!/usr/bin/python
+#
+# Utility script to generate .pc files for libsoup
+# for Visual Studio builds, to be used for
+# building introspection files
+
+# Author: Fan, Chun-wei
+# Date: March 10, 2016
+
+import os
+import sys
+
+from replace import replace_multi
+from pc_base import BasePCItems
+
+def main(argv):
+    base_pc = BasePCItems()
+
+    base_pc.setup(argv)
+
+    # Generate libsoup-2.4.pc
+    replace_multi(base_pc.top_srcdir + '/libsoup-2.4.pc.in',
+                  base_pc.srcdir + '/libsoup-2.4.pc',
+                  base_pc.base_replace_items)
+
+    # Generate libsoup-gnome-2.4.pc
+    replace_multi(base_pc.top_srcdir + '/libsoup-gnome-2.4.pc.in',
+                  base_pc.srcdir + '/libsoup-gnome-2.4.pc',
+                  base_pc.base_replace_items)
+
+if __name__ == '__main__':
+    sys.exit(main(sys.argv))