gnome: Run gtkdoc-scanobjs and add a way to get assets working

Allowing the object tree to be generated.

We need to add options to allow copying the ncesseary sources and
assets so the HTML generator can work with them (everything is
relative so we need to copy them in the build directory).

Until now the documentation was not generated from the user provided
main sgml file but it was using a generated one, which lead to a broken
documentation. Starting using it revealed the other bugs fixed in that
commit.

2 files changed, 116 insertions, 32 deletions

diff --git a/mesonbuild/modules/gnome.py b/mesonbuild/modules/gnome.py
index 0b30d6d..cec0c69 100644
--- a/mesonbuild/modules/gnome.py
+++ b/mesonbuild/modules/gnome.py
@@ -16,7 +16,7 @@
 functionality such as gobject-introspection and gresources.'''
 
 from .. import build
-import os, sys
+import os
 import subprocess
 from ..mesonlib import MesonException
 from .. import dependencies
@@ -94,13 +94,14 @@ class GnomeModule:
 
         return stdout.split('\n')[:-1]
 
-    def get_link_args(self, state, lib, depends):
+    def get_link_args(self, state, lib, depends=None):
         link_command = ['-l%s' % lib.name]
         if isinstance(lib, build.SharedLibrary):
             link_command += ['-L%s' %
                     os.path.join(state.environment.get_build_dir(),
                         lib.subdir)]
-            depends.append(lib)
+            if depends:
+                depends.append(lib)
         return link_command
 
     def get_include_args(self, state, include_dirs, prefix='-I'):
@@ -391,12 +392,39 @@ class GnomeModule:
                 '--modulename=' + modulename]
         args += self.unpack_args('--htmlargs=', 'html_args', kwargs)
         args += self.unpack_args('--scanargs=', 'scan_args', kwargs)
+        args += self.unpack_args('--scanobjsargs=', 'scanobjs_args', kwargs)
+        args += self.unpack_args('--gobjects-types-file=', 'gobject_typesfile', kwargs, state)
         args += self.unpack_args('--fixxrefargs=', 'fixxref_args', kwargs)
+        args += self.unpack_args('--html-assets=', 'html_assets', kwargs, state)
+        args += self.unpack_args('--content-files=', 'content_files', kwargs, state)
+        args += self.get_build_args(kwargs, state)
         res = [build.RunTarget(targetname, command[0], command[1:] + args, [], state.subdir)]
         if kwargs.get('install', True):
             res.append(build.InstallScript(command + args))
         return res
 
+    def get_build_args(self, kwargs, state):
+        args = []
+        cflags, ldflags, gi_includes = self.get_dependencies_flags(kwargs.get('dependencies', []), state)
+        inc_dirs = kwargs.get('include_directories', [])
+        if not isinstance(inc_dirs, list):
+            inc_dirs = [inc_dirs]
+        for incd in inc_dirs:
+            if not isinstance(incd.held_object, (str, build.IncludeDirs)):
+                raise MesonException(
+                    'Gir include dirs should be include_directories().')
+        cflags.update(self.get_include_args(state, inc_dirs))
+        if cflags:
+            args += ['--cflags=%s' % ' '.join(cflags)]
+        if ldflags:
+            args += ['--ldflags=%s' % ' '.join(ldflags)]
+        compiler = state.environment.coredata.compilers.get('c')
+        if compiler:
+            args += ['--cc=%s' % ' '.join(compiler.get_exelist())]
+            args += ['--ld=%s' % ' '.join(compiler.get_linker_exelist())]
+
+        return args
+
     def gtkdoc_html_dir(self, state, args, kwarga):
         if len(args) != 1:
             raise MesonException('Must have exactly one argument.')
@@ -406,18 +434,24 @@ class GnomeModule:
         return os.path.join('share/gtkdoc/html', modulename)
 
 
-    def unpack_args(self, arg, kwarg_name, kwargs):
-        try:
-            new_args = kwargs[kwarg_name]
-            if not isinstance(new_args, list):
-                new_args = [new_args]
-            for i in new_args:
-                if not isinstance(i, str):
-                    raise MesonException('html_args values must be strings.')
-        except KeyError:
-            return[]
-        if len(new_args) > 0:
-            return [arg + '@@'.join(new_args)]
+    def unpack_args(self, arg, kwarg_name, kwargs, expend_file_state=None):
+        if kwarg_name not in kwargs:
+            return []
+
+        new_args = kwargs[kwarg_name]
+        if not isinstance(new_args, list):
+            new_args = [new_args]
+        args = []
+        for i in new_args:
+            if expend_file_state and isinstance(i, mesonlib.File):
+                i = os.path.join(expend_file_state.environment.get_build_dir(), i.subdir, i.fname)
+            elif not isinstance(i, str):
+                raise MesonException(kwarg_name + ' values must be strings.')
+            args.append(i)
+
+        if args:
+            return [arg + '@@'.join(args)]
+
         return []
 
     def gdbus_codegen(self, state, args, kwargs):
diff --git a/mesonbuild/scripts/gtkdochelper.py b/mesonbuild/scripts/gtkdochelper.py
index 0c87717..18a7597 100644
--- a/mesonbuild/scripts/gtkdochelper.py
+++ b/mesonbuild/scripts/gtkdochelper.py
@@ -30,7 +30,15 @@ parser.add_argument('--mainfile', dest='mainfile')
 parser.add_argument('--modulename', dest='modulename')
 parser.add_argument('--htmlargs', dest='htmlargs', default='')
 parser.add_argument('--scanargs', dest='scanargs', default='')
+parser.add_argument('--scanobjsargs', dest='scanobjsargs', default='')
+parser.add_argument('--gobjects-types-file', dest='gobject_typesfile', default='')
 parser.add_argument('--fixxrefargs', dest='fixxrefargs', default='')
+parser.add_argument('--ld', dest='ld', default='')
+parser.add_argument('--cc', dest='cc', default='')
+parser.add_argument('--ldflags', dest='ldflags', default='')
+parser.add_argument('--cflags', dest='cflags', default='')
+parser.add_argument('--content-files', dest='content_files', default='')
+parser.add_argument('--html-assets', dest='html_assets', default='')
 
 def gtkdoc_run_check(cmd, cwd):
     p = subprocess.Popen(cmd, cwd=cwd,
@@ -45,15 +53,49 @@ def gtkdoc_run_check(cmd, cwd):
         raise MesonException('\n'.join(err_msg))
 
 def build_gtkdoc(source_root, build_root, doc_subdir, src_subdir,
-                 main_file, module, html_args, scan_args, fixxref_args):
+                 main_file, module, html_args, scan_args, fixxref_args,
+                 gobject_typesfile, scanobjs_args, ld, cc, ldflags, cflags,
+                 html_assets, content_files):
+    print("Building documentation for %s" % module)
+
     abs_src = os.path.join(source_root, src_subdir)
+    doc_src = os.path.join(source_root, doc_subdir)
     abs_out = os.path.join(build_root, doc_subdir)
     htmldir = os.path.join(abs_out, 'html')
+
+    content_files += [main_file]
+    sections = os.path.join(doc_src, module + "-sections.txt")
+    if os.path.exists(sections):
+        content_files.append(sections)
+
+    # Copy files to build directory
+    for f in content_files:
+        f_abs = os.path.join(doc_src, f)
+        shutil.copyfile(f_abs, os.path.join(
+            abs_out, os.path.basename(f_abs)))
+
+    shutil.rmtree(htmldir, ignore_errors=True)
+    try:
+        os.mkdir(htmldir)
+    except Exception:
+        pass
+
+    for f in html_assets:
+        f_abs = os.path.join(doc_src, f)
+        shutil.copyfile(f_abs, os.path.join(htmldir, os.path.basename(f_abs)))
+
     scan_cmd = ['gtkdoc-scan',
                 '--module=' + module,
                 '--source-dir=' + abs_src] + scan_args
     gtkdoc_run_check(scan_cmd, abs_out)
 
+    if gobject_typesfile:
+        scanobjs_cmd = ['gtkdoc-scangobj'] + scanobjs_args + [gobject_typesfile,
+            '--module=' + module, '--cflags=' + cflags, '--ldflags=' + ldflags]
+
+        gtkdoc_run_check(scanobjs_cmd, abs_out)
+
+
     # Make docbook files
     if main_file.endswith('sgml'):
         modeflag = '--sgml-mode'
@@ -62,21 +104,16 @@ def build_gtkdoc(source_root, build_root, doc_subdir, src_subdir,
     mkdb_cmd = ['gtkdoc-mkdb',
                 '--module=' + module,
                 '--output-format=xml',
+                '--expand-content-files=',
                 modeflag,
                 '--source-dir=' + abs_src]
-    main_abs = os.path.join(source_root, doc_subdir, main_file)
     if len(main_file) > 0:
         # Yes, this is the flag even if the file is in xml.
         mkdb_cmd.append('--main-sgml-file=' + main_file)
     gtkdoc_run_check(mkdb_cmd, abs_out)
 
     # Make HTML documentation
-    shutil.rmtree(htmldir, ignore_errors=True)
-    try:
-        os.mkdir(htmldir)
-    except Exception:
-        pass
-    mkhtml_cmd = ['gtkdoc-mkhtml', 
+    mkhtml_cmd = ['gtkdoc-mkhtml',
                   '--path=' + abs_src,
                   module,
                   ] + html_args
@@ -109,19 +146,32 @@ def run(args):
         scanargs = options.scanargs.split('@@')
     else:
         scanargs = []
+    if len(options.scanobjsargs) > 0:
+        scanobjsargs = options.scanobjsargs.split('@@')
+    else:
+        scanobjsargs = []
     if len(options.fixxrefargs) > 0:
         fixxrefargs = options.fixxrefargs.split('@@')
     else:
         fixxrefargs = []
-    build_gtkdoc(options.sourcedir,
-                 options.builddir,
-                 options.subdir,
-                 options.headerdir,
-                 options.mainfile,
-                 options.modulename,
-                 htmlargs,
-                 scanargs,
-                 fixxrefargs)
+    build_gtkdoc(
+        options.sourcedir,
+        options.builddir,
+        options.subdir,
+        options.headerdir,
+        options.mainfile,
+        options.modulename,
+        htmlargs,
+        scanargs,
+        fixxrefargs,
+        options.gobject_typesfile,
+        scanobjsargs,
+        options.ld,
+        options.cc,
+        options.ldflags,
+        options.cflags,
+        options.html_assets.split('@@') if options.html_assets else [],
+        options.content_files.split('@@') if options.content_files else [])
 
     if 'MESON_INSTALL_PREFIX' in os.environ:
         destdir = os.environ.get('DESTDIR', '')