source-file command from Tiago Cunha.

cmd-source-file.c

@@ -0,0 +1,146 @@
+/* $Id: cmd-source-file.c,v 1.1 2008-12-15 21:21:56 nicm Exp $ */
+
+/*
+ * Copyright (c) 2008 Tiago Cunha <me@tiagocunha.org>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <sys/types.h>
+
+#include "tmux.h"
+
+/*
+ * Sources a configuration file.
+ */
+
+int	cmd_source_file_parse(struct cmd *, int, char **, char **);
+void	cmd_source_file_exec(struct cmd *, struct cmd_ctx *);
+void	cmd_source_file_send(struct cmd *, struct buffer *);
+void	cmd_source_file_recv(struct cmd *, struct buffer *);
+void	cmd_source_file_free(struct cmd *);
+void	cmd_source_file_init(struct cmd *, int);
+void	cmd_source_file_print(struct cmd *, char *, size_t);
+
+struct cmd_source_file_data {
+	char *path;
+};
+
+const struct cmd_entry cmd_source_file_entry = {
+	"source-file", "source",
+	"path",
+	CMD_ONEARG,
+	cmd_source_file_init,
+	cmd_source_file_parse,
+	cmd_source_file_exec,
+	cmd_source_file_send,
+	cmd_source_file_recv,
+	cmd_source_file_free,
+	cmd_source_file_print
+};
+
+void
+cmd_source_file_init(struct cmd *self, unused int arg)
+{
+	struct cmd_source_file_data	*data;
+
+	self->data = data = xmalloc(sizeof *data);
+	data->path = NULL;
+}
+
+int
+cmd_source_file_parse(struct cmd *self, int argc, char **argv, char **cause)
+{
+	struct cmd_source_file_data	*data;
+	int				opt;
+
+	self->entry->init(self, 0);
+	data = self->data;
+
+	while ((opt = getopt(argc, argv, "")) != -1) {
+		switch (opt) {
+		default:
+			goto usage;
+		}
+	}
+	argc -= optind;
+	argv += optind;
+	if (argc != 1)
+		goto usage;
+
+	data->path = xstrdup(argv[0]);
+	return (0);
+
+usage:
+	xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
+
+	self->entry->free(self);
+	return (-1);
+}
+
+void
+cmd_source_file_exec(struct cmd *self, struct cmd_ctx *ctx)
+{
+	char				*cause;
+	struct cmd_source_file_data	*data = self->data;
+
+	if (load_cfg(data->path, &cause) != 0) {
+		ctx->error(ctx, "%s", cause);
+		return;
+	}
+
+	if (ctx->cmdclient != NULL)
+		server_write_client(ctx->cmdclient, MSG_EXIT, NULL, 0);
+}
+
+void
+cmd_source_file_send(struct cmd *self, struct buffer *b)
+{
+	struct cmd_source_file_data	*data = self->data;
+
+	buffer_write(b, data, sizeof *data);
+	cmd_send_string(b, data->path);
+}
+
+void
+cmd_source_file_recv(struct cmd *self, struct buffer *b)
+{
+	struct cmd_source_file_data	*data;
+
+	self->data = data = xmalloc(sizeof *data);
+	buffer_read(b, data, sizeof *data);
+	data->path = cmd_recv_string(b);
+}
+
+void
+cmd_source_file_free(struct cmd *self)
+{
+	struct cmd_source_file_data	*data = self->data;
+
+	if (data->path != NULL)
+		xfree(data->path);
+	xfree(data);
+}
+
+void
+cmd_source_file_print(struct cmd *self, char *buf, size_t len)
+{
+	struct cmd_source_file_data	*data = self->data;
+	size_t				off = 0;
+
+	off += xsnprintf(buf, len, "%s", self->entry->name);
+	if (data == NULL)
+		return;
+	if (off < len && data->path != NULL)
+		off += xsnprintf(buf + off, len - off, " %s", data->path);
+}