Move project metadata to pyproject.toml (frescobaldi#155)

Modern Python packaging standards rely on static metadata in
pyproject.toml rather than dynamic metadata in setup.py, which is
considered deprecated.

Porting notes:

- In modern packaging, console scripts are installed via entry points.
  The bin/ directory containing the ly and ly-server scripts is removed;
  instead, entry points specify a module and function to run, and pip
  automatically creates a wrapper script when installing the project.

- The pkginfo is trimmed down to contain only the version. This is
  because pyproject.toml is not Python code, and the ways in which it
  can read metadata dynamically are limited. The conf.py file for Sphinx
  now declares the metadata as well; this might be considered duplication,
  but things like the name 'python-ly' and the author 'Wilbert Berendsen'
  are unlikely to change.

- There are now a few more URLs in the [project.urls] table.

- This does not use setuptools_scm to display the version, but that could
  be done in the future (see frescobaldi#148). However, getting the version for conf.py
  needs having the package installed, so this will impose certain constraints
  for developers.

- This change was tested by executing "python -m build" before and after,
  unpacking the sdists, and checking that the differences were intended.

MANIFEST.in

@@ -2,4 +2,6 @@ include README.rst INSTALL.rst ChangeLog
 include doc/*.rst
 include doc/conf.py
 include doc/Makefile
+include ly/xml/*.ly
+include ly/xml/*.ily
 global-exclude *~

doc/conf.py

@@ -22,7 +22,6 @@
 sys.path.insert(0, os.path.abspath('..'))
 import ly.pkginfo
 
-
 # -- General configuration ------------------------------------------------
 
 # If your documentation needs a minimal Sphinx version, state it here.
@@ -49,8 +48,8 @@
 master_doc = 'index'
 
 # General information about the project.
-project = ly.pkginfo.name
-copyright = u'2015, ' + ly.pkginfo.maintainer
+project = 'python-ly'
+copyright = '2015, Wilbert Berendsen'
 
 # The version info for the project you're documenting, acts as replacement for
 # |version| and |release|, also used in various other places throughout the
@@ -233,9 +232,9 @@
 # (source start file, name, description, authors, manual section).
 man_pages = [
     ('command', 'ly', u'Manipulate LilyPond source files',
-     [ly.pkginfo.maintainer], 1),
+     ['Wilbert Berendsen'], 1),
     ('servercmd', 'ly-server', u'Manipulate LilyPond source files via HTTP',
-     [ly.pkginfo.maintainer], 1),
+     ['Wilbert Berendsen'], 1),
 ]
 
 # If true, show URL addresses after external links.
@@ -248,8 +247,9 @@
 # (source start file, target name, title, author,
 #  dir menu entry, description, category)
 texinfo_documents = [
-  ('index', ly.pkginfo.name, u'python-ly Documentation',
-   u'Author', ly.pkginfo.name, ly.pkginfo.description,
+  ('index', 'python-ly', 'python-ly Documentation',
+   'Author', 'python-ly',
+   'Tool and library for manipulating LilyPond files',
    'Miscellaneous'),
 ]
 
@@ -269,10 +269,10 @@
 # -- Options for Epub output ----------------------------------------------
 
 # Bibliographic Dublin Core info.
-epub_title = ly.pkginfo.name
-epub_author = ly.pkginfo.maintainer
-epub_publisher = ly.pkginfo.maintainer
-epub_copyright = u'2015, ' + ly.pkginfo.maintainer
+epub_title = 'python-ly'
+epub_author = 'Wilbert Berendsen'
+epub_publisher = 'Wilbert Berendsen'
+epub_copyright = '2015, Wilbert Berendsen'
 
 # The basename for the epub file. It defaults to the project name.
 #epub_basename = u'ly'

doc/ly.rst

@@ -117,13 +117,6 @@ ly.node module
     :undoc-members:
     :show-inheritance:
 
-ly.pkginfo module
------------------
-
-.. automodule:: ly.pkginfo
-    :members:
-    :member-order: bysource
-
 ly.reformat module
 ------------------
 
@@ -155,5 +148,3 @@ ly.words module
     :members:
     :undoc-members:
     :show-inheritance:
-
-

ly/__init__.py

@@ -43,7 +43,7 @@
 Document class automatically parses and tokenizes the text, also when its
 contents are changed.
 
-A music tree can be built from a document using the ly.music module. 
+A music tree can be built from a document using the ly.music module.
 In the near future, music trees can be built from scratch and also generate
 LilyPond output from scratch. At that moment, ly.dom is deprecated.
 
@@ -52,4 +52,3 @@
 
 
 """
-

ly/pkginfo.py

@@ -1,55 +1,3 @@
-# This file is part of python-ly, https://pypi.python.org/pypi/python-ly
-#
-# Copyright (c) 2014 - 2015 by Wilbert Berendsen
-#
-# This program is free software; you can redistribute it and/or
-# modify it under the terms of the GNU General Public License
-# as published by the Free Software Foundation; either version 2
-# of the License, or (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU General Public License for more details.
-#
-# You should have received a copy of the GNU General Public License
-# along with this program; if not, write to the Free Software
-# Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
-# See http://www.gnu.org/licenses/ for more information.
+"""Meta-information about the LY package."""
 
-"""
-Meta-information about the LY package.
-
-This information is used by the install script, and also for the
-command ``ly --version``.
-
-"""
-
-from __future__ import unicode_literals
-
-#: name of the package
-name = "python-ly"
-
-#: the current version
 version = "0.9.7"
-
-#: short description
-description = "Tool and library for manipulating LilyPond files"
-
-#: long description
-long_description = \
-    "The python-ly package provides a Python library and a commandline tool " \
-    "that can be used to parse and manipulate LilyPond source files."
-
-#: maintainer name
-maintainer = "Wilbert Berendsen"
-
-#: maintainer email
-maintainer_email = "[email protected]"
-
-#: homepage
-url = "https://github.com/wbsoft/python-ly"
-
-#: license
-license = "GPL"
-

pyproject.toml

@@ -0,0 +1,36 @@
+[build-system]
+requires = ["setuptools >= 64"]
+build-backend = "setuptools.build_meta"
+
+[project]
+name = "python-ly"
+description = "Tool and library for manipulating LilyPond files"
+readme = "README.rst"
+license.text = "GPL"
+maintainers = [{name = "Wilbert Berendsen", email = "[email protected]"}]
+classifiers = [
+    'Development Status :: 4 - Beta',
+    #'Development Status :: 5 - Production/Stable',
+    'License :: OSI Approved :: GNU General Public License (GPL)',
+    'Operating System :: MacOS :: MacOS X',
+    'Operating System :: Microsoft :: Windows',
+    'Operating System :: POSIX',
+    'Programming Language :: Python :: 2.7',
+    'Programming Language :: Python :: 3',
+    'Topic :: Multimedia :: Sound/Audio',
+    'Topic :: Text Editors',
+]
+dynamic = ["version"]
+
+[project.urls]
+Homepage = "https://github.com/frescobaldi/python-ly"
+Documentation = "https://python-ly.readthedocs.io"
+Repository = "https://github.com/frescobaldi/python-ly"
+"Issue tracker" = "https://github.com/frescobaldi/python-ly/issues"
+
+[project.scripts]
+ly = "ly.cli.main:main"
+ly-server = "ly.server.main:main"
+
+[tool.setuptools.dynamic]
+version.attr = "ly.pkginfo.version"