Port to meson (#258)

* Port to meson

* plugin generation script: swtich to meson, update to python3, switch to libpeas, add some extra options, and cleanup

* clean up some build warnings

* kill xed-bugreport.sh with fire: it isn't used anymore, and probably doesn't even work

* update gzip command to avoid warnings on some systems and move appdata.xml to /usr/share/metainfo/ as that's where it's supposed to go now

* POTFILES.in: fix path that changed in the meson port, which was causing makepot to fail

plugins/textsize/Makefile.am

@@ -1,16 +0,0 @@
-# Textsize Plugin
-SUBDIRS = textsize
-plugindir = $(XED_PLUGINS_LIBS_DIR)
-
-plugin_in_files = textsize.plugin.desktop.in
-%.plugin: %.plugin.desktop.in $(INTLTOOL_MERGE) $(wildcard $(top_srcdir)/po/*po) ; $(INTLTOOL_MERGE) $(top_srcdir)/po $< $@ -d -u -c $(top_builddir)/po/.intltool-merge-cache
-
-plugin_DATA = $(plugin_in_files:.plugin.desktop.in=.plugin)
-
-EXTRA_DIST =            \
-    $(plugin_in_files)
-
-CLEANFILES = $(plugin_DATA)
-DISTCLEANFILES = $(plugin_DATA)
-
--include $(top_srcdir)/git.mk

plugins/textsize/meson.build

@@ -0,0 +1,13 @@
+install_subdir(
+    'textsize',
+    install_dir: pluginslibdir
+)
+
+textsize_desktop = custom_target(
+    'textsize_desktop',
+    input: 'textsize.plugin.desktop.in',
+    output: 'textsize.plugin',
+    command: [intltool_merge, '-d', '-u', po_dir, '@INPUT@', '@OUTPUT@'],
+    install: true,
+    install_dir: pluginslibdir,
+)

plugins/textsize/textsize/Makefile.am

@@ -1,11 +0,0 @@
-plugindir = $(XED_PLUGINS_LIBS_DIR)/textsize
-
-plugin_PYTHON =         \
-    __init__.py         \
-    signals.py          \
-    documenthelper.py
-
-CLEANFILES =
-DISTCLEANFILES =
-
--include $(top_srcdir)/git.mk