Web-based check-in interface (#1985)

src/pretix/helpers/compressor.py

@@ -0,0 +1,42 @@
+import os
+import re
+import shlex
+
+from compressor.exceptions import FilterError
+from compressor.filters import CompilerFilter
+from django.conf import settings
+
+
+class VueCompiler(CompilerFilter):
+    # Based on work (c) Laura Klünder in https://github.com/codingcatgirl/django-vue-rollup
+    # Released under Apache License 2.0
+
+    def __init__(self, content, attrs, **kwargs):
+        config_dir = os.path.join(os.path.dirname(os.path.dirname(os.path.abspath(__file__))), 'static', 'npm_dir')
+        node_path = os.path.join(settings.STATIC_ROOT, 'node_prefix', 'node_modules')
+        self.rollup_bin = os.path.join(node_path, 'rollup', 'dist', 'bin', 'rollup')
+        rollup_config = os.path.join(config_dir, 'rollup.config.js')
+        if not os.path.exists(self.rollup_bin) and not settings.DEBUG:
+            raise FilterError("Rollup not installed or pretix not built properly, please run 'make npminstall' in source root.")
+        command = (
+            ' '.join((
+                'NODE_PATH=' + shlex.quote(node_path),
+                shlex.quote(self.rollup_bin),
+                '-c',
+                shlex.quote(rollup_config))
+            ) +
+            ' --input {infile} -n {export_name} --file {outfile}'
+        )
+        super().__init__(content, command=command, **kwargs)
+
+    def input(self, **kwargs):
+        if self.filename is None:
+            raise FilterError('VueCompiler can only compile files, not inline code.')
+        if not os.path.exists(self.rollup_bin):
+            raise FilterError("Rollup not installed, please run 'make npminstall' in source root.")
+        self.options += (('export_name', re.sub(
+            r'^([a-z])|[^a-z0-9A-Z]+([a-zA-Z0-9])?',
+            lambda s: s.group(0)[-1].upper(),
+            os.path.basename(self.filename).split('.')[0]
+        )),)
+        return super().input(**kwargs)