diff options
| -rw-r--r-- | Makefile | 2 | ||||
| -rw-r--r-- | cmd-if-shell.c | 176 | ||||
| -rw-r--r-- | cmd.c | 1 | ||||
| -rw-r--r-- | tmux.1 | 10 | ||||
| -rw-r--r-- | tmux.h | 1 |
5 files changed, 189 insertions, 1 deletions
@@ -22,7 +22,7 @@ SRCS= arg.c attributes.c buffer-poll.c buffer.c cfg.c client-fn.c \ cmd-send-prefix.c cmd-server-info.c cmd-set-buffer.c cmd-set-option.c \ cmd-set-password.c cmd-set-window-option.c cmd-show-buffer.c \ cmd-show-options.c cmd-show-window-options.c cmd-source-file.c \ - cmd-split-window.c cmd-start-server.c cmd-string.c \ + cmd-split-window.c cmd-start-server.c cmd-string.c cmd-if-shell.c \ cmd-suspend-client.c cmd-swap-pane.c cmd-swap-window.c \ cmd-switch-client.c cmd-unbind-key.c cmd-unlink-window.c \ cmd-up-pane.c cmd.c colour.c grid-view.c grid.c input-keys.c \ diff --git a/cmd-if-shell.c b/cmd-if-shell.c new file mode 100644 index 00000000..4f348a7e --- /dev/null +++ b/cmd-if-shell.c @@ -0,0 +1,176 @@ +/* $OpenBSD$ */ + +/* + * 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 <errno.h> +#include <stdlib.h> +#include <string.h> + +#include "tmux.h" + +/* + * Executes a tmux command if a shell command returns true. + */ + +int cmd_if_shell_parse(struct cmd *, int, char **, char **); +int cmd_if_shell_exec(struct cmd *, struct cmd_ctx *); +void cmd_if_shell_send(struct cmd *, struct buffer *); +void cmd_if_shell_recv(struct cmd *, struct buffer *); +void cmd_if_shell_free(struct cmd *); +void cmd_if_shell_init(struct cmd *, int); +size_t cmd_if_shell_print(struct cmd *, char *, size_t); + +struct cmd_if_shell_data { + char *cmd; + char *sh_cmd; +}; + +const struct cmd_entry cmd_if_shell_entry = { + "if-shell", "if", + "shell-command command", + 0, + cmd_if_shell_init, + cmd_if_shell_parse, + cmd_if_shell_exec, + cmd_if_shell_send, + cmd_if_shell_recv, + cmd_if_shell_free, + cmd_if_shell_print +}; + +void +cmd_if_shell_init(struct cmd *self, unused int arg) +{ + struct cmd_if_shell_data *data; + + self->data = data = xmalloc(sizeof *data); + data->cmd = NULL; + data->sh_cmd = NULL; +} + +int +cmd_if_shell_parse(struct cmd *self, int argc, char **argv, char **cause) +{ + struct cmd_if_shell_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 != 2) + goto usage; + + data->sh_cmd = xstrdup(argv[0]); + data->cmd = xstrdup(argv[1]); + return (0); + +usage: + xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage); + + self->entry->free(self); + return (-1); +} + +int +cmd_if_shell_exec(struct cmd *self, struct cmd_ctx *ctx) +{ + struct cmd_if_shell_data *data = self->data; + struct cmd_list *cmdlist; + char *cause; + int ret; + + if ((ret = system(data->sh_cmd)) < 0) { + ctx->error(ctx, "system error: %s", strerror(errno)); + return (-1); + } else if (ret != 0) + return (0); + + if (cmd_string_parse(data->cmd, &cmdlist, &cause) != 0) { + if (cause != NULL) { + ctx->error(ctx, "%s", cause); + xfree(cause); + } + return (-1); + } + + if (cmd_list_exec(cmdlist, ctx) < 0) { + cmd_list_free(cmdlist); + return (-1); + } + + cmd_list_free(cmdlist); + return (0); +} + +void +cmd_if_shell_send(struct cmd *self, struct buffer *b) +{ + struct cmd_if_shell_data *data = self->data; + + buffer_write(b, data, sizeof *data); + cmd_send_string(b, data->cmd); + cmd_send_string(b, data->sh_cmd); +} + +void +cmd_if_shell_recv(struct cmd *self, struct buffer *b) +{ + struct cmd_if_shell_data *data; + + self->data = data = xmalloc(sizeof *data); + buffer_read(b, data, sizeof *data); + data->cmd = cmd_recv_string(b); + data->sh_cmd = cmd_recv_string(b); +} + +void +cmd_if_shell_free(struct cmd *self) +{ + struct cmd_if_shell_data *data = self->data; + + if (data->cmd != NULL) + xfree(data->cmd); + if (data->sh_cmd != NULL) + xfree(data->sh_cmd); + xfree(data); +} + +size_t +cmd_if_shell_print(struct cmd *self, char *buf, size_t len) +{ + struct cmd_if_shell_data *data = self->data; + size_t off = 0; + + off += xsnprintf(buf, len, "%s", self->entry->name); + if (data == NULL) + return (off); + if (off < len && data->sh_cmd != NULL) + off += cmd_prarg(buf + off, len - off, " ", data->sh_cmd); + if (off < len && data->cmd != NULL) + off += cmd_prarg(buf + off, len - off, " ", data->cmd); + return (off); +} @@ -42,6 +42,7 @@ const struct cmd_entry *cmd_table[] = { &cmd_down_pane_entry, &cmd_find_window_entry, &cmd_has_session_entry, + &cmd_if_shell_entry, &cmd_kill_pane_entry, &cmd_kill_server_entry, &cmd_kill_session_entry, @@ -711,6 +711,16 @@ This command only works from inside .D1 (alias: Ic has ) Report an error and exit with 1 if the specified session does not exist. If it does exist, exit with 0. +.It Xo Ic if-shell +.Ar shell-command +.Ar command +.Xc +.D1 (alias: Ic if ) +Execute +.Ar command +if +.Ar shell-command +returns success. .It Xo Ic kill-pane .Op Fl p Ar pane-index .Op Fl t Ar target-window @@ -1101,6 +1101,7 @@ extern const struct cmd_entry cmd_detach_client_entry; extern const struct cmd_entry cmd_down_pane_entry; extern const struct cmd_entry cmd_find_window_entry; extern const struct cmd_entry cmd_has_session_entry; +extern const struct cmd_entry cmd_if_shell_entry; extern const struct cmd_entry cmd_kill_pane_entry; extern const struct cmd_entry cmd_kill_server_entry; extern const struct cmd_entry cmd_kill_session_entry; |