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-rw-r--r--lib/clippy.c121
1 files changed, 121 insertions, 0 deletions
diff --git a/lib/clippy.c b/lib/clippy.c
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+++ b/lib/clippy.c
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+/*
+ * clippy (CLI preparator in python) main executable
+ * Copyright (C) 2016-2017 David Lamparter for NetDEF, Inc.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; see the file COPYING; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#include "config.h"
+#include <Python.h>
+#include <string.h>
+#include <stdlib.h>
+#include <wchar.h>
+#include "getopt.h"
+
+#include "command_graph.h"
+#include "clippy.h"
+
+#if PY_MAJOR_VERSION >= 3
+#define pychar wchar_t
+static wchar_t *wconv(const char *s)
+{
+ size_t outlen = s ? mbstowcs(NULL, s, 0) : 0;
+ wchar_t *out = malloc((outlen + 1) * sizeof(wchar_t));
+
+ if (outlen > 0)
+ mbstowcs(out, s, outlen);
+ out[outlen] = 0;
+ return out;
+}
+#else
+#define pychar char
+#define wconv(x) x
+#endif
+
+int main(int argc, char **argv)
+{
+ pychar **wargv;
+
+#if PY_VERSION_HEX >= 0x03040000 /* 3.4 */
+ Py_SetStandardStreamEncoding("UTF-8", NULL);
+#endif
+ wchar_t *name = wconv(argv[0]);
+ Py_SetProgramName(name);
+ PyImport_AppendInittab("_clippy", command_py_init);
+
+ Py_Initialize();
+
+ wargv = malloc(argc * sizeof(pychar *));
+ for (int i = 1; i < argc; i++)
+ wargv[i - 1] = wconv(argv[i]);
+ PySys_SetArgv(argc - 1, wargv);
+
+ const char *pyfile = argc > 1 ? argv[1] : NULL;
+ FILE *fp;
+ if (pyfile) {
+ fp = fopen(pyfile, "r");
+ if (!fp) {
+ fprintf(stderr, "%s: %s\n", pyfile, strerror(errno));
+
+ free(name);
+ return 1;
+ }
+ } else {
+ fp = stdin;
+ char *ver = strdup(Py_GetVersion());
+ char *cr = strchr(ver, '\n');
+ if (cr)
+ *cr = ' ';
+ fprintf(stderr, "clippy interactive shell\n(Python %s)\n", ver);
+ free(ver);
+ PyRun_SimpleString(
+ "import rlcompleter, readline\n"
+ "readline.parse_and_bind('tab: complete')");
+ }
+
+ if (PyRun_AnyFile(fp, pyfile)) {
+ if (PyErr_Occurred())
+ PyErr_Print();
+
+ free(name);
+ return 1;
+ }
+ Py_Finalize();
+
+#if PY_MAJOR_VERSION >= 3
+ for (int i = 1; i < argc; i++)
+ free(wargv[i - 1]);
+#endif
+ free(name);
+ free(wargv);
+ return 0;
+}
+
+/* and now for the ugly part... provide simplified logging functions so we
+ * don't need to link libzebra (which would be a circular build dep) */
+
+#include "log.h"
+
+void vzlogx(const struct xref_logmsg *xref, int prio,
+ const char *format, va_list args)
+{
+ vfprintf(stderr, format, args);
+ fputs("\n", stderr);
+}
+
+void memory_oom(size_t size, const char *name)
+{
+ abort();
+}