python: Rewrite with CFFI

2017-09-02 17:52:25 -04:00
parent 6432694455
commit 706f9bca82
16 changed files with 1017 additions and 2850 deletions
--- a/plugins/python/generate_plugin.py
+++ b/plugins/python/generate_plugin.py
@@ -0,0 +1,89 @@
+#!/usr/bin/env python3
+
+import sys
+import cffi
+
+builder = cffi.FFI()
+
+# hexchat-plugin.h
+with open(sys.argv[1]) as f:
+    output = []
+    eat_until_endif = 0
+    # This is very specific to hexchat-plugin.h, it is not a cpp
+    for line in f:
+        if line.startswith('#define'):
+            continue
+        elif line.endswith('HEXCHAT_PLUGIN_H\n'):
+            continue
+        elif 'time.h' in line:
+            output.append('typedef int... time_t;')
+        elif line.startswith('#if'):
+            eat_until_endif += 1
+        elif line.startswith('#endif'):
+            eat_until_endif -= 1
+        elif eat_until_endif and '_hexchat_context' not in line:
+            continue
+        else:
+            output.append(line)
+    builder.cdef(''.join(output))
+
+builder.embedding_api('''
+extern "Python" int _on_py_command(char **, char **, void *);
+extern "Python" int _on_load_command(char **, char **, void *);
+extern "Python" int _on_unload_command(char **, char **, void *);
+extern "Python" int _on_reload_command(char **, char **, void *);
+extern "Python" int _on_say_command(char **, char **, void *);
+
+extern "Python" int _on_command_hook(char **, char **, void *);
+extern "Python" int _on_print_hook(char **, void *);
+extern "Python" int _on_print_attrs_hook(char **, hexchat_event_attrs *, void *);
+extern "Python" int _on_server_hook(char **, char **, void *);
+extern "Python" int _on_server_attrs_hook(char **, char **, hexchat_event_attrs *, void *);
+extern "Python" int _on_timer_hook(void *);
+
+extern "Python" int _on_plugin_init(char **, char **, char **, char *, char *);
+extern "Python" int _on_plugin_deinit(void);
+
+static hexchat_plugin *ph;
+''')
+
+builder.set_source('_hexchat_embedded', '''
+/* Python's header defines these.. */
+#undef HAVE_MEMRCHR
+#undef HAVE_STRINGS_H
+
+#include "config.h"
+#include "hexchat-plugin.h"
+
+static hexchat_plugin *ph;
+CFFI_DLLEXPORT int _on_plugin_init(char **, char **, char **, char *, char *);
+CFFI_DLLEXPORT int _on_plugin_deinit(void);
+
+int hexchat_plugin_init(hexchat_plugin *plugin_handle,
+                        char **name_out, char **description_out,
+                        char **version_out, char *arg)
+{
+    if (ph != NULL)
+    {
+        puts ("Python plugin already loaded\\n");
+        return 0; /* Prevent loading twice */
+    }
+
+    ph = plugin_handle;
+    return _on_plugin_init(name_out, description_out, version_out, arg, HEXCHATLIBDIR);
+}
+
+int hexchat_plugin_deinit(void)
+{
+    int ret = _on_plugin_deinit();
+    ph = NULL;
+    return ret;
+}
+''')
+
+# python.py
+with open(sys.argv[2]) as f:
+    builder.embedding_init_code(f.read())
+
+# python.c
+builder.emit_c_code(sys.argv[3])