PICARD-2652: Update setup.py for Weblate

- update_constants pulls from Weblate
- pull_translations got removed (no longer needed)
- Transifex configutation removed

setup.py

@@ -86,8 +86,6 @@ ext_modules = [
     Extension('picard.util._astrcmp', sources=['picard/util/_astrcmp.c']),
 ]
 
-tx_executable = which('tx')
-
 
 def newer(source, target):
     """Return true if 'source' exists and is more recently modified than
@@ -493,40 +491,6 @@ class picard_regen_appdata_pot_file(Command):
             ])
 
 
-class picard_pull_translations(Command):
-    description = "Retrieve po files from transifex"
-    minimum_perc_default = 5
-    user_options = [
-        ('minimum-perc=', 'm',
-         "Specify the minimum acceptable percentage of a translation (default: %d)" % minimum_perc_default)
-    ]
-
-    def initialize_options(self):
-        self.minimum_perc = self.minimum_perc_default
-
-    def finalize_options(self):
-        self.minimum_perc = int(self.minimum_perc)
-
-    def run(self):
-        if tx_executable is None:
-            sys.exit('Transifex client executable (tx) not found.')
-        self.spawn([
-            tx_executable,
-            'pull',
-            '--force',
-            '--all',
-            '--minimum-perc=%d' % self.minimum_perc
-        ])
-        self.spawn([
-            tx_executable,
-            'pull',
-            '--force',
-            '--languages',
-            'en_AU,en_GB,en_CA'
-            'musicbrainz.picard',
-        ])
-
-
 _regen_pot_description = "Regenerate po/picard.pot, parsing source tree for new or updated strings"
 try:
     from babel import __version__ as babel_version
@@ -581,32 +545,29 @@ def _get_option_name(obj):
 class picard_update_constants(Command):
     description = "Regenerate attributes.py and countries.py"
     user_options = [
-        ('skip-pull', None, "skip the tx pull steps"),
+        ('skip-pull', None, "skip the translation pull step"),
+        ('weblate-key=', None, "Weblate API key"),
     ]
     boolean_options = ['skip-pull']
 
     def initialize_options(self):
         self.skip_pull = None
+        self.weblate_key = None
 
     def finalize_options(self):
         self.locales = self.distribution.locales
 
     def run(self):
-        if tx_executable is None:
-            sys.exit('Transifex client executable (tx) not found.')
-
         from babel.messages import pofile
 
         if not self.skip_pull:
-            txpull_cmd = [
-                tx_executable,
-                'pull',
-                '--force',
-                '--source',
-                'musicbrainz.attributes',
-                'musicbrainz.countries',
+            cmd = [
+                os.path.join(os.path.dirname(__file__), 'scripts', 'tools', 'pull-shared-translations.py'),
             ]
-            self.spawn(txpull_cmd)
+            if self.weblate_key:
+                cmd.append('--key')
+                cmd.append(self.weblate_key)
+            self.spawn(cmd)
 
         countries = dict()
         countries_potfile = os.path.join('po', 'countries', 'countries.pot')
@@ -794,7 +755,6 @@ args = {
         'install': picard_install,
         'install_locales': picard_install_locales,
         'update_constants': picard_update_constants,
-        'pull_translations': picard_pull_translations,
         'regen_pot_file': picard_regen_pot_file,
         'patch_version': picard_patch_version,
     },