Annotation of src/usr.bin/tmux/cmd-if-shell.c, Revision 1.47
1.47 ! nicm 1: /* $OpenBSD: cmd-if-shell.c,v 1.46 2016/10/13 22:48:51 nicm Exp $ */
1.1 nicm 2:
3: /*
4: * Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org>
1.5 nicm 5: * Copyright (c) 2009 Nicholas Marriott <nicm@openbsd.org>
1.1 nicm 6: *
7: * Permission to use, copy, modify, and distribute this software for any
8: * purpose with or without fee is hereby granted, provided that the above
9: * copyright notice and this permission notice appear in all copies.
10: *
11: * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12: * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13: * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14: * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15: * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
16: * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
17: * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18: */
19:
20: #include <sys/types.h>
1.5 nicm 21: #include <sys/wait.h>
1.1 nicm 22:
1.15 nicm 23: #include <stdlib.h>
1.1 nicm 24: #include <string.h>
25:
26: #include "tmux.h"
27:
28: /*
1.14 nicm 29: * Executes a tmux command if a shell command returns true or false.
1.1 nicm 30: */
31:
1.45 nicm 32: static enum cmd_retval cmd_if_shell_exec(struct cmd *, struct cmd_q *);
1.1 nicm 33:
1.47 ! nicm 34: static enum cmd_retval cmd_if_shell_error(struct cmd_q *, void *);
! 35: static void cmd_if_shell_callback(struct job *);
! 36: static void cmd_if_shell_free(void *);
1.1 nicm 37:
38: const struct cmd_entry cmd_if_shell_entry = {
1.39 nicm 39: .name = "if-shell",
40: .alias = "if",
41:
42: .args = { "bFt:", 2, 3 },
43: .usage = "[-bF] " CMD_TARGET_PANE_USAGE " shell-command command "
44: "[command]",
45:
1.40 nicm 46: .tflag = CMD_PANE_CANFAIL,
47:
48: .flags = 0,
1.39 nicm 49: .exec = cmd_if_shell_exec
1.1 nicm 50: };
51:
1.5 nicm 52: struct cmd_if_shell_data {
1.44 nicm 53: char *file;
54: u_int line;
55:
1.30 nicm 56: char *cmd_if;
57: char *cmd_else;
58:
1.47 ! nicm 59: struct client *client;
1.30 nicm 60: struct cmd_q *cmdq;
61: struct mouse_event mouse;
1.5 nicm 62: };
1.1 nicm 63:
1.45 nicm 64: static enum cmd_retval
1.20 nicm 65: cmd_if_shell_exec(struct cmd *self, struct cmd_q *cmdq)
1.1 nicm 66: {
1.10 nicm 67: struct args *args = self->args;
1.5 nicm 68: struct cmd_if_shell_data *cdata;
1.27 nicm 69: char *shellcmd, *cmd, *cause;
70: struct cmd_list *cmdlist;
1.47 ! nicm 71: struct cmd_q *new_cmdq;
1.38 nicm 72: struct session *s = cmdq->state.tflag.s;
73: struct winlink *wl = cmdq->state.tflag.wl;
74: struct window_pane *wp = cmdq->state.tflag.wp;
1.19 nicm 75: struct format_tree *ft;
1.34 nicm 76: const char *cwd;
1.19 nicm 77:
1.38 nicm 78: if (cmdq->client != NULL && cmdq->client->session == NULL)
79: cwd = cmdq->client->cwd;
80: else if (s != NULL)
81: cwd = s->cwd;
82: else
83: cwd = NULL;
1.41 nicm 84:
1.37 nicm 85: ft = format_create(cmdq, 0);
1.43 nicm 86: format_defaults(ft, cmdq->state.c, s, wl, wp);
1.19 nicm 87: shellcmd = format_expand(ft, args->argv[0]);
88: format_free(ft);
1.27 nicm 89:
90: if (args_has(args, 'F')) {
91: cmd = NULL;
92: if (*shellcmd != '0' && *shellcmd != '\0')
93: cmd = args->argv[1];
94: else if (args->argc == 3)
95: cmd = args->argv[2];
1.35 nicm 96: free(shellcmd);
1.27 nicm 97: if (cmd == NULL)
98: return (CMD_RETURN_NORMAL);
99: if (cmd_string_parse(cmd, &cmdlist, NULL, 0, &cause) != 0) {
100: if (cause != NULL) {
101: cmdq_error(cmdq, "%s", cause);
102: free(cause);
103: }
104: return (CMD_RETURN_ERROR);
105: }
1.47 ! nicm 106: new_cmdq = cmdq_get_command(cmdlist, NULL, &cmdq->mouse, 0);
! 107: cmdq_insert_after(cmdq, new_cmdq);
1.27 nicm 108: cmd_list_free(cmdlist);
109: return (CMD_RETURN_NORMAL);
110: }
1.5 nicm 111:
1.44 nicm 112: cdata = xcalloc(1, sizeof *cdata);
113: if (self->file != NULL) {
114: cdata->file = xstrdup(self->file);
115: cdata->line = self->line;
116: }
1.30 nicm 117:
1.13 nicm 118: cdata->cmd_if = xstrdup(args->argv[1]);
1.14 nicm 119: if (args->argc == 3)
120: cdata->cmd_else = xstrdup(args->argv[2]);
1.13 nicm 121: else
122: cdata->cmd_else = NULL;
1.30 nicm 123:
1.47 ! nicm 124: cdata->client = cmdq->client;
! 125: cdata->client->references++;
1.5 nicm 126:
1.47 ! nicm 127: if (!args_has(args, 'b'))
! 128: cdata->cmdq = cmdq;
! 129: else
! 130: cdata->cmdq = NULL;
! 131: memcpy(&cdata->mouse, &cmdq->mouse, sizeof cdata->mouse);
1.5 nicm 132:
1.32 nicm 133: job_run(shellcmd, s, cwd, cmd_if_shell_callback, cmd_if_shell_free,
134: cdata);
1.19 nicm 135: free(shellcmd);
1.1 nicm 136:
1.47 ! nicm 137: if (args_has(args, 'b'))
1.20 nicm 138: return (CMD_RETURN_NORMAL);
139: return (CMD_RETURN_WAIT);
1.1 nicm 140: }
141:
1.47 ! nicm 142: static enum cmd_retval
! 143: cmd_if_shell_error(struct cmd_q *cmdq, void *data)
! 144: {
! 145: char *error = data;
! 146:
! 147: cmdq_error(cmdq, "%s", error);
! 148: free(error);
! 149:
! 150: return (CMD_RETURN_NORMAL);
! 151: }
! 152:
1.45 nicm 153: static void
1.5 nicm 154: cmd_if_shell_callback(struct job *job)
1.1 nicm 155: {
1.5 nicm 156: struct cmd_if_shell_data *cdata = job->data;
1.47 ! nicm 157: struct client *c = cdata->client;
1.1 nicm 158: struct cmd_list *cmdlist;
1.47 ! nicm 159: struct cmd_q *new_cmdq;
! 160: char *cause, *cmd, *file = cdata->file;
! 161: u_int line = cdata->line;
1.20 nicm 162:
163: if (!WIFEXITED(job->status) || WEXITSTATUS(job->status) != 0)
1.13 nicm 164: cmd = cdata->cmd_else;
1.20 nicm 165: else
1.13 nicm 166: cmd = cdata->cmd_if;
1.20 nicm 167: if (cmd == NULL)
1.47 ! nicm 168: goto out;
1.20 nicm 169:
1.47 ! nicm 170: if (cmd_string_parse(cmd, &cmdlist, file, line, &cause) != 0) {
! 171: if (cause != NULL)
! 172: new_cmdq = cmdq_get_callback(cmd_if_shell_error, cause);
! 173: else
! 174: new_cmdq = NULL;
! 175: } else {
! 176: new_cmdq = cmdq_get_command(cmdlist, NULL, &cdata->mouse, 0);
! 177: cmd_list_free(cmdlist);
1.1 nicm 178: }
179:
1.47 ! nicm 180: if (new_cmdq != NULL) {
! 181: if (cdata->cmdq == NULL)
! 182: cmdq_append(c, new_cmdq);
! 183: else
! 184: cmdq_insert_after(cdata->cmdq, new_cmdq);
! 185: }
1.25 nicm 186:
1.47 ! nicm 187: out:
! 188: if (cdata->cmdq != NULL)
! 189: cdata->cmdq->flags &= ~CMD_Q_WAITING;
1.20 nicm 190: }
191:
1.45 nicm 192: static void
1.5 nicm 193: cmd_if_shell_free(void *data)
1.1 nicm 194: {
1.5 nicm 195: struct cmd_if_shell_data *cdata = data;
1.1 nicm 196:
1.47 ! nicm 197: server_client_unref(cdata->client);
1.1 nicm 198:
1.15 nicm 199: free(cdata->cmd_else);
200: free(cdata->cmd_if);
1.44 nicm 201:
202: free(cdata->file);
1.15 nicm 203: free(cdata);
1.1 nicm 204: }
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