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Diffstat (limited to '')
| -rw-r--r-- | cmd-confirm-before.c | 142 |
1 files changed, 142 insertions, 0 deletions
diff --git a/cmd-confirm-before.c b/cmd-confirm-before.c new file mode 100644 index 0000000..ce8c95e --- /dev/null +++ b/cmd-confirm-before.c @@ -0,0 +1,142 @@ +/* $OpenBSD$ */ + +/* + * Copyright (c) 2009 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 <ctype.h> +#include <stdlib.h> +#include <string.h> + +#include "tmux.h" + +/* + * Asks for confirmation before executing a command. + */ + +static enum args_parse_type cmd_confirm_before_args_parse(struct args *, + u_int, char **); +static enum cmd_retval cmd_confirm_before_exec(struct cmd *, + struct cmdq_item *); + +static int cmd_confirm_before_callback(struct client *, void *, + const char *, int); +static void cmd_confirm_before_free(void *); + +const struct cmd_entry cmd_confirm_before_entry = { + .name = "confirm-before", + .alias = "confirm", + + .args = { "bp:t:", 1, 1, cmd_confirm_before_args_parse }, + .usage = "[-b] [-p prompt] " CMD_TARGET_CLIENT_USAGE " command", + + .flags = CMD_CLIENT_TFLAG, + .exec = cmd_confirm_before_exec +}; + +struct cmd_confirm_before_data { + struct cmdq_item *item; + struct cmd_list *cmdlist; +}; + +static enum args_parse_type +cmd_confirm_before_args_parse(__unused struct args *args, __unused u_int idx, + __unused char **cause) +{ + return (ARGS_PARSE_COMMANDS_OR_STRING); +} + +static enum cmd_retval +cmd_confirm_before_exec(struct cmd *self, struct cmdq_item *item) +{ + struct args *args = cmd_get_args(self); + struct cmd_confirm_before_data *cdata; + struct client *tc = cmdq_get_target_client(item); + struct cmd_find_state *target = cmdq_get_target(item); + char *new_prompt; + const char *prompt, *cmd; + int wait = !args_has(args, 'b'); + + cdata = xcalloc(1, sizeof *cdata); + cdata->cmdlist = args_make_commands_now(self, item, 0, 1); + if (cdata->cmdlist == NULL) + return (CMD_RETURN_ERROR); + + if (wait) + cdata->item = item; + + if ((prompt = args_get(args, 'p')) != NULL) + xasprintf(&new_prompt, "%s ", prompt); + else { + cmd = cmd_get_entry(cmd_list_first(cdata->cmdlist))->name; + xasprintf(&new_prompt, "Confirm '%s'? (y/n) ", cmd); + } + + status_prompt_set(tc, target, new_prompt, NULL, + cmd_confirm_before_callback, cmd_confirm_before_free, cdata, + PROMPT_SINGLE, PROMPT_TYPE_COMMAND); + free(new_prompt); + + if (!wait) + return (CMD_RETURN_NORMAL); + return (CMD_RETURN_WAIT); +} + +static int +cmd_confirm_before_callback(struct client *c, void *data, const char *s, + __unused int done) +{ + struct cmd_confirm_before_data *cdata = data; + struct cmdq_item *item = cdata->item, *new_item; + int retcode = 1; + + if (c->flags & CLIENT_DEAD) + goto out; + + if (s == NULL || *s == '\0') + goto out; + if (tolower((u_char)s[0]) != 'y' || s[1] != '\0') + goto out; + retcode = 0; + + if (item == NULL) { + new_item = cmdq_get_command(cdata->cmdlist, NULL); + cmdq_append(c, new_item); + } else { + new_item = cmdq_get_command(cdata->cmdlist, + cmdq_get_state(item)); + cmdq_insert_after(item, new_item); + } + +out: + if (item != NULL) { + if (cmdq_get_client(item) != NULL && + cmdq_get_client(item)->session == NULL) + cmdq_get_client(item)->retval = retcode; + cmdq_continue(item); + } + return (0); +} + +static void +cmd_confirm_before_free(void *data) +{ + struct cmd_confirm_before_data *cdata = data; + + cmd_list_free(cdata->cmdlist); + free(cdata); +} |