Rearrange source tree to be directly usable by dependants

This allows the LV2 source distribution to be used as an include path for
compilers and an LV2_PATH for applications, at the expense of self-contained
bundles.  That's a nice idea, but it made LV2 itself weird and annoying to
depend on.  This rearranges things so that directories in the source tree
correspond more closely to installation directories.

To make this possible, the "aux" directory in the documentation output has been
changed to "style", to avoid the reserved name "aux" on Windows.

1 files changed, 221 insertions, 54 deletions

diff --git a/meson.build b/meson.build
index 5fbf3ba..44dbdb4 100644
--- a/meson.build
+++ b/meson.build
@@ -61,33 +61,232 @@ endif
 
 # Generage pkg-config file for external dependants
 pkg.generate(
-  name: 'LV2',
+  description: 'Plugin standard for audio systems',
   filebase: 'lv2',
+  name: 'LV2',
   subdirs: ['lv2'],
+  variables: [
+    'lv2dir=' + lv2dir,
+    'plugindir=' + lv2dir,
+  ],
   version: meson.project_version(),
-  description: 'Plugin standard for audio systems')
+)
 
 # Declare dependency for internal meson dependants
 lv2_dep = declare_dependency(
-  include_directories: include_directories('.'),
-  version: meson.project_version())
+  include_directories: include_directories('include'),
+  variables: [
+    'lv2dir=' + lv2_source_root / 'lv2',
+    'plugindir=' + lv2_build_root / 'plugins',
+  ],
+  version: meson.project_version(),
+)
 
 ##################
 # Specifications #
 ##################
 
-doc_python_modules = [
-  'lxml',
-  'markdown',
-  'pygments',
-  'rdflib',
+# Extensions in http://lv2plug.in/ns/ext/
+ext_names = [
+  'atom',
+  'buf-size',
+  'data-access',
+  'dynmanifest',
+  'event',
+  'instance-access',
+  'log',
+  'midi',
+  'morph',
+  'options',
+  'parameters',
+  'patch',
+  'port-groups',
+  'port-props',
+  'presets',
+  'resize-port',
+  'state',
+  'time',
+  'uri-map',
+  'urid',
+  'worker',
+]
+
+# Extensions in http://lv2plug.in/ns/extensions/
+extensions_names = [
+  'ui',
+  'units',
 ]
 
+# All extensions (not core) in http://lv2plug.in/ns/
+all_extension_names = ext_names + extensions_names
+
+# All specifications in http://lv2plug.in/ns/
+all_spec_names = ['core'] + ext_names + extensions_names
+
+###############
+# API Headers #
+###############
+
+prefix = get_option('prefix')
+includedir = get_option('includedir')
+
+install_subdir('include/lv2', install_dir: includedir)
+
+if get_option('old_headers')
+  uri_include_dir = prefix / includedir / 'lv2' / 'lv2plug.in' / 'ns'
+  include_prefix = 'include' / 'lv2'
+
+  # Install the core headers specially, because they are inconsistent
+
+  core_headers = files(
+    include_prefix / 'core' / 'attributes.h',
+    include_prefix / 'core' / 'lv2.h',
+    include_prefix / 'core' / 'lv2_util.h',
+  )
+
+  # Core headers are inconsistently in "lv2plug.in/ns/lv2core"
+  install_data(core_headers, install_dir: uri_include_dir / 'lv2core')
+
+  # Some extensions are in "lv2plug.in/ns/ext"
+  foreach dir : ext_names
+    install_subdir(
+      include_prefix / dir,
+      install_dir: uri_include_dir / 'ext',
+    )
+  endforeach
+
+  # Some extensions are in "lv2plug.in/ns/extensions"
+  foreach dir : extensions_names
+    install_subdir(
+      include_prefix / dir,
+      install_dir: uri_include_dir / 'extensions',
+    )
+  endforeach
+endif
+
+#######################
+# Scripts and Schemas #
+#######################
+
+subdir('scripts')
+subdir('schemas.lv2')
+
+##################
+# Specifications #
+##################
+
+lv2_check_specification = files('scripts' / 'lv2_check_specification.py')
+
+check_python = pymod.find_installation(
+  'python3',
+  modules: ['rdflib'],
+  required: get_option('tests'),
+)
+
+foreach bundle_name : all_spec_names
+  bundle = 'lv2' / bundle_name + '.lv2'
+
+  # Check specification
+  if check_python.found()
+    test(
+      bundle_name,
+      lv2_check_specification,
+      args: files(bundle / 'manifest.ttl'),
+      suite: ['spec'],
+    )
+  endif
+
+  # Install specification bundle
+  install_subdir(bundle, install_dir: lv2dir)
+endforeach
+
+spec_files = files(
+  'lv2/atom.lv2/atom.meta.ttl',
+  'lv2/atom.lv2/atom.ttl',
+  'lv2/atom.lv2/manifest.ttl',
+  'lv2/buf-size.lv2/buf-size.meta.ttl',
+  'lv2/buf-size.lv2/buf-size.ttl',
+  'lv2/buf-size.lv2/manifest.ttl',
+  'lv2/core.lv2/lv2core.meta.ttl',
+  'lv2/core.lv2/lv2core.ttl',
+  'lv2/core.lv2/manifest.ttl',
+  'lv2/core.lv2/meta.ttl',
+  'lv2/core.lv2/people.ttl',
+  'lv2/data-access.lv2/data-access.meta.ttl',
+  'lv2/data-access.lv2/data-access.ttl',
+  'lv2/data-access.lv2/manifest.ttl',
+  'lv2/dynmanifest.lv2/dynmanifest.meta.ttl',
+  'lv2/dynmanifest.lv2/dynmanifest.ttl',
+  'lv2/dynmanifest.lv2/manifest.ttl',
+  'lv2/event.lv2/event.meta.ttl',
+  'lv2/event.lv2/event.ttl',
+  'lv2/event.lv2/manifest.ttl',
+  'lv2/instance-access.lv2/instance-access.meta.ttl',
+  'lv2/instance-access.lv2/instance-access.ttl',
+  'lv2/instance-access.lv2/manifest.ttl',
+  'lv2/log.lv2/log.meta.ttl',
+  'lv2/log.lv2/log.ttl',
+  'lv2/log.lv2/manifest.ttl',
+  'lv2/midi.lv2/manifest.ttl',
+  'lv2/midi.lv2/midi.meta.ttl',
+  'lv2/midi.lv2/midi.ttl',
+  'lv2/morph.lv2/manifest.ttl',
+  'lv2/morph.lv2/morph.meta.ttl',
+  'lv2/morph.lv2/morph.ttl',
+  'lv2/options.lv2/manifest.ttl',
+  'lv2/options.lv2/options.meta.ttl',
+  'lv2/options.lv2/options.ttl',
+  'lv2/parameters.lv2/manifest.ttl',
+  'lv2/parameters.lv2/parameters.meta.ttl',
+  'lv2/parameters.lv2/parameters.ttl',
+  'lv2/patch.lv2/manifest.ttl',
+  'lv2/patch.lv2/patch.meta.ttl',
+  'lv2/patch.lv2/patch.ttl',
+  'lv2/port-groups.lv2/manifest.ttl',
+  'lv2/port-groups.lv2/port-groups.meta.ttl',
+  'lv2/port-groups.lv2/port-groups.ttl',
+  'lv2/port-props.lv2/manifest.ttl',
+  'lv2/port-props.lv2/port-props.meta.ttl',
+  'lv2/port-props.lv2/port-props.ttl',
+  'lv2/presets.lv2/manifest.ttl',
+  'lv2/presets.lv2/presets.meta.ttl',
+  'lv2/presets.lv2/presets.ttl',
+  'lv2/resize-port.lv2/manifest.ttl',
+  'lv2/resize-port.lv2/resize-port.meta.ttl',
+  'lv2/resize-port.lv2/resize-port.ttl',
+  'lv2/state.lv2/manifest.ttl',
+  'lv2/state.lv2/state.meta.ttl',
+  'lv2/state.lv2/state.ttl',
+  'lv2/time.lv2/manifest.ttl',
+  'lv2/time.lv2/time.meta.ttl',
+  'lv2/time.lv2/time.ttl',
+  'lv2/ui.lv2/manifest.ttl',
+  'lv2/ui.lv2/ui.meta.ttl',
+  'lv2/ui.lv2/ui.ttl',
+  'lv2/units.lv2/manifest.ttl',
+  'lv2/units.lv2/units.meta.ttl',
+  'lv2/units.lv2/units.ttl',
+  'lv2/uri-map.lv2/manifest.ttl',
+  'lv2/uri-map.lv2/uri-map.meta.ttl',
+  'lv2/uri-map.lv2/uri-map.ttl',
+  'lv2/urid.lv2/manifest.ttl',
+  'lv2/urid.lv2/urid.meta.ttl',
+  'lv2/urid.lv2/urid.ttl',
+  'lv2/worker.lv2/manifest.ttl',
+  'lv2/worker.lv2/worker.meta.ttl',
+  'lv2/worker.lv2/worker.ttl',
+)
+
+#################
+# Documentation #
+#################
+
 # Determine if all the dependencies for building documentation are present
+doxygen = find_program('doxygen', required: get_option('docs'))
 build_docs = false
 doc_deps = []
 if not get_option('docs').disabled()
-  doxygen = find_program('doxygen', required: get_option('docs'))
+  doc_python_modules = ['lxml', 'markdown', 'pygments', 'rdflib']
 
   python = pymod.find_installation(
     'python3',
@@ -98,46 +297,23 @@ if not get_option('docs').disabled()
   build_docs = doxygen.found() and python.found()
 endif
 
-# Basic scripts and schema data
-subdir('scripts')
-subdir('schemas.lv2')
+# Run Doxygen first to generate tags
+subdir('doc/c')
+
+# Set up lv2specgen and lv2specgen_command_prefix (which references tags)
+subdir('lv2specgen')
 
-# Run Doxygen to generate tags file and HTML code documentation
+# Generate specification documentation
 if build_docs
-  subdir('doc/c')
+  subdir('doc/style')
+  subdir('doc/ns')
 endif
 
-# Set up lv2specgen for generating individual specification documentation
-subdir('lv2specgen')
+###########
+# Plugins #
+###########
 
-# Specifications (and their individual documentation)
-subdir('lv2')
-spec_files = (atom_data +
-              buf_size_data +
-              core_data +
-              data_access_data +
-              dynmanifest_data +
-              event_data +
-              instance_access_data +
-              log_data +
-              midi_data +
-              morph_data +
-              options_data +
-              parameters_data +
-              patch_data +
-              port_groups_data +
-              port_props_data +
-              presets_data +
-              resize_port_data +
-              state_data +
-              time_data +
-              ui_data +
-              units_data +
-              uri_map_data +
-              urid_data +
-              worker_data)
-
-# Plugins and "Programming LV2 Plugins" book
+# Example plugins and "Programming LV2 Plugins" book
 if not get_option('plugins').disabled()
   subdir('plugins')
 endif
@@ -152,15 +328,6 @@ subdir('util')
 # Data and build tests
 subdir('test')
 
-#################
-# Documentation #
-#################
-
-# Top-level documentation
-if build_docs
-  subdir('doc')
-endif
-
 ########
 # News #
 ########