[gobject-introspection] docmain: port to using argparse.

[Jasper St. Pierre <jstpierre src gnome org>]

commit 86e17e6853187d5e6983c39980b6df9e4b82edbd
Author: Mathieu Duponchelle <mathieu duponchelle opencreed com>
Date:   Tue Mar 10 15:49:47 2015 +0100

    docmain: port to using argparse.
    
    optparse is deprecated.

 configure.ac         |    2 +-
 giscanner/docmain.py |   32 +++++++++++++++-----------------
 2 files changed, 16 insertions(+), 18 deletions(-)
---
diff --git a/configure.ac b/configure.ac
index 115e49b..ebf0206 100644
--- a/configure.ac
+++ b/configure.ac
@@ -251,7 +251,7 @@ AC_CHECK_FUNCS([memchr strchr strspn strstr strtol strtoull])
 AC_CHECK_FUNCS([backtrace backtrace_symbols])
 
 # Python
-AM_PATH_PYTHON([2.6])
+AM_PATH_PYTHON([2.7])
 case "$host" in
 *-*-mingw*)
        # Change backslashes to forward slashes in pyexecdir to avoid
diff --git a/giscanner/docmain.py b/giscanner/docmain.py
index e65b57a..fdcda18 100644
--- a/giscanner/docmain.py
+++ b/giscanner/docmain.py
@@ -19,7 +19,7 @@
 #
 
 import os
-import optparse
+import argparse
 
 from .docwriter import DocWriter
 from .sectionparser import generate_sections_file, write_sections_file
@@ -27,46 +27,44 @@ from .transformer import Transformer
 
 
 def doc_main(args):
-    parser = optparse.OptionParser('%prog [options] GIR-file')
+    parser = argparse.ArgumentParser()
 
-    parser.add_option("-o", "--output",
+    parser.add_argument("girfile")
+    parser.add_argument("-o", "--output",
                       action="store", dest="output",
                       help="Directory to write output to")
-    parser.add_option("-l", "--language",
+    parser.add_argument("-l", "--language",
                       action="store", dest="language",
                       default="c",
                       help="Output language")
-    parser.add_option("", "--add-include-path",
+    parser.add_argument("-I", "--add-include-path",
                       action="append", dest="include_paths", default=[],
                       help="include paths for other GIR files")
-    parser.add_option("", "--write-sections-file",
+    parser.add_argument("-s", "--write-sections-file",
                       action="store_true", dest="write_sections",
                       help="Generate and write out a sections file")
 
-    options, args = parser.parse_args(args)
-    if not options.output:
+    args = parser.parse_args(args[1:])
+    if not args.output:
         raise SystemExit("missing output parameter")
 
-    if len(args) < 2:
-        raise SystemExit("Need an input GIR filename")
-
     if 'UNINSTALLED_INTROSPECTION_SRCDIR' in os.environ:
         top_srcdir = os.environ['UNINSTALLED_INTROSPECTION_SRCDIR']
         top_builddir = os.environ['UNINSTALLED_INTROSPECTION_BUILDDIR']
         extra_include_dirs = [os.path.join(top_srcdir, 'gir'), top_builddir]
     else:
         extra_include_dirs = []
-    extra_include_dirs.extend(options.include_paths)
-    transformer = Transformer.parse_from_gir(args[1], extra_include_dirs)
+    extra_include_dirs.extend(args.include_paths)
+    transformer = Transformer.parse_from_gir(args.girfile, extra_include_dirs)
 
-    if options.write_sections:
+    if args.write_sections:
         sections_file = generate_sections_file(transformer)
 
-        fp = open(options.output, 'w')
+        fp = open(args.output, 'w')
         write_sections_file(fp, sections_file)
         fp.close()
     else:
-        writer = DocWriter(transformer, options.language)
-        writer.write(options.output)
+        writer = DocWriter(transformer, args.language)
+        writer.write(args.output)
 
     return 0