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Copy pathformat.c
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7126 lines (6368 loc) · 158 KB
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/* $OpenBSD: format.c,v 1.412 2026/08/05 07:31:08 nicm Exp $ */
/*
* Copyright (c) 2011 Nicholas Marriott <nicholas.marriott@gmail.com>
*
* 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 <sys/wait.h>
#include <ctype.h>
#include <errno.h>
#include <fnmatch.h>
#include <libgen.h>
#include <math.h>
#include <pwd.h>
#include <regex.h>
#include <stdarg.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include "tmux.h"
/*
* Build a list of key-value pairs and use them to expand #{key} entries in a
* string.
*/
struct format_expand_state;
static char *format_job_get(struct format_expand_state *, const char *);
static char *format_quote_shell_single(const char *);
static char *format_expand1(struct format_expand_state *, const char *);
static int format_replace(struct format_expand_state *, const char *,
size_t, char **, size_t *, size_t *);
static void format_defaults_session(struct format_tree *,
struct session *);
static void format_defaults_client(struct format_tree *, struct client *);
static void format_defaults_winlink(struct format_tree *,
struct winlink *);
/* Entry in format job tree. */
struct format_job {
struct client *client;
u_int tag;
const char *cmd;
const char *expanded;
time_t last;
char *out;
int updated;
struct job *job;
int status;
RB_ENTRY(format_job) entry;
};
/* Format job tree. */
static int format_job_cmp(struct format_job *, struct format_job *);
static RB_HEAD(format_job_tree, format_job) format_jobs = RB_INITIALIZER();
RB_GENERATE_STATIC(format_job_tree, format_job, entry, format_job_cmp);
/* Format job tree comparison function. */
static int
format_job_cmp(struct format_job *fj1, struct format_job *fj2)
{
if (fj1->tag < fj2->tag)
return (-1);
if (fj1->tag > fj2->tag)
return (1);
return (strcmp(fj1->cmd, fj2->cmd));
}
/* Maximum pad and trim width. */
#define FORMAT_MAX_WIDTH 10000
/* Maximum repeat size. */
#define FORMAT_MAX_REPEAT 10000
/* Maximum precision. */
#define FORMAT_MAX_PRECISION 100
/* Format modifiers. */
#define FORMAT_TIMESTRING 0x1
#define FORMAT_BASENAME 0x2
#define FORMAT_DIRNAME 0x4
#define FORMAT_QUOTE_SHELL 0x8
#define FORMAT_LITERAL 0x10
#define FORMAT_EXPAND 0x20
#define FORMAT_EXPANDTIME 0x40
#define FORMAT_SESSIONS 0x80
#define FORMAT_WINDOWS 0x100
#define FORMAT_PANES 0x200
#define FORMAT_PRETTY 0x400
#define FORMAT_LENGTH 0x800
#define FORMAT_WIDTH 0x1000
#define FORMAT_QUOTE_STYLE 0x2000
#define FORMAT_WINDOW_NAME 0x4000
#define FORMAT_SESSION_NAME 0x8000
#define FORMAT_CHARACTER 0x10000
#define FORMAT_COLOUR 0x20000
#define FORMAT_CLIENTS 0x40000
#define FORMAT_NOT 0x80000
#define FORMAT_NOT_NOT 0x100000
#define FORMAT_REPEAT 0x200000
#define FORMAT_QUOTE_ARGUMENTS 0x400000
#define FORMAT_RELATIVE 0x800000
#define FORMAT_CLIENT_TERMCAP 0x1000000
#define FORMAT_CLIENT_TERMFEAT 0x2000000
#define FORMAT_CLIENT_ENVIRON 0x4000000
#define FORMAT_COLOUR_ESC_FG 0x8000000
#define FORMAT_COLOUR_ESC_BG 0x10000000
#define FORMAT_QUOTE_SHELL_SQ 0x20000000
#define FORMAT_OPTIONS 0x40000000
#define FORMAT_ENVIRON 0x80000000ULL
#define FORMAT_DIFFERENCE 0x100000000ULL
#define FORMAT_CYCLE 0x200000000ULL
/* Limit on recursion. */
#define FORMAT_LOOP_LIMIT 100
/* Limit on time taken (milliseconds). */
#define FORMAT_TIME_LIMIT 100
/* How often to check the time in long loops. */
#define FORMAT_TIME_LOOP_CHECK 10000
/* Fixed animation period (ms): redraw interval and shortest frame step. */
#define FORMAT_CYCLE_PERIOD 100
/* Format expand flags. */
#define FORMAT_EXPAND_TIME 0x1
#define FORMAT_EXPAND_NOJOBS 0x2
#define FORMAT_EXPAND_NOCYCLE 0x4
/* Entry in format tree. */
struct format_entry {
char *key;
char *value;
time_t time;
format_cb cb;
RB_ENTRY(format_entry) entry;
};
/* Format type. */
enum format_type {
FORMAT_TYPE_UNKNOWN,
FORMAT_TYPE_SESSION,
FORMAT_TYPE_WINDOW,
FORMAT_TYPE_PANE
};
static struct sort_criteria sort_crit;
struct format_tree {
enum format_type type;
struct client *c;
struct session *s;
struct winlink *wl;
struct window *w;
struct window_pane *wp;
struct paste_buffer *pb;
struct cmdq_item *item;
struct client *client;
int flags;
u_int tag;
struct mouse_event m;
RB_HEAD(format_entry_tree, format_entry) tree;
};
static int format_entry_cmp(struct format_entry *, struct format_entry *);
RB_GENERATE_STATIC(format_entry_tree, format_entry, entry, format_entry_cmp);
/* Format expand state. */
struct format_expand_state {
struct format_tree *ft;
u_int loop;
uint64_t start_time;
int flags;
time_t time;
struct tm tm;
};
/* Format modifier. */
struct format_modifier {
char modifier[3];
u_int size;
char **argv;
int argc;
};
/* Format entry tree comparison function. */
static int
format_entry_cmp(struct format_entry *fe1, struct format_entry *fe2)
{
return (strcmp(fe1->key, fe2->key));
}
/* Single-character uppercase aliases. */
static const char *format_upper[] = {
NULL, /* A */
NULL, /* B */
NULL, /* C */
"pane_id", /* D */
NULL, /* E */
"window_flags", /* F */
NULL, /* G */
"host", /* H */
"window_index", /* I */
NULL, /* J */
NULL, /* K */
NULL, /* L */
NULL, /* M */
NULL, /* N */
NULL, /* O */
"pane_index", /* P */
NULL, /* Q */
NULL, /* R */
"session_name", /* S */
"pane_title", /* T */
NULL, /* U */
NULL, /* V */
"window_name", /* W */
NULL, /* X */
NULL, /* Y */
NULL /* Z */
};
/* Single-character lowercase aliases. */
static const char *format_lower[] = {
NULL, /* a */
NULL, /* b */
NULL, /* c */
NULL, /* d */
NULL, /* e */
NULL, /* f */
NULL, /* g */
"host_short", /* h */
NULL, /* i */
NULL, /* j */
NULL, /* k */
NULL, /* l */
NULL, /* m */
NULL, /* n */
NULL, /* o */
NULL, /* p */
NULL, /* q */
NULL, /* r */
NULL, /* s */
NULL, /* t */
NULL, /* u */
NULL, /* v */
NULL, /* w */
NULL, /* x */
NULL, /* y */
NULL /* z */
};
/* Is logging enabled? */
static inline int
format_logging(struct format_tree *ft)
{
return (log_get_level() != 0 || (ft->flags & FORMAT_VERBOSE));
}
/* Log a message if verbose. */
static void printflike(3, 4)
format_log1(struct format_expand_state *es, const char *from, const char *fmt,
...)
{
struct format_tree *ft = es->ft;
va_list ap;
char *s;
static const char spaces[] = " ";
if (!format_logging(ft))
return;
va_start(ap, fmt);
xvasprintf(&s, fmt, ap);
va_end(ap);
log_debug("%s: %s", from, s);
if (ft->item != NULL && (ft->flags & FORMAT_VERBOSE))
cmdq_print(ft->item, "#%.*s%s", es->loop, spaces, s);
free(s);
}
#define format_log(es, fmt, ...) format_log1(es, __func__, fmt, ##__VA_ARGS__)
/* Copy expand state. */
static void
format_copy_state(struct format_expand_state *to,
struct format_expand_state *from, int flags)
{
to->ft = from->ft;
to->loop = from->loop;
to->time = from->time;
memcpy(&to->tm, &from->tm, sizeof to->tm);
to->flags = from->flags|flags;
to->start_time = from->start_time;
}
/* Format job update callback. */
static void
format_job_update(struct job *job)
{
struct format_job *fj = job_get_data(job);
struct evbuffer *evb = job_get_event(job)->input;
char *line = NULL, *next;
time_t t;
while ((next = evbuffer_readline(evb)) != NULL) {
free(line);
line = next;
}
if (line == NULL)
return;
fj->updated = 1;
free(fj->out);
fj->out = line;
log_debug("%s: %p %s: %s", __func__, fj, fj->cmd, fj->out);
t = time(NULL);
if (fj->status && fj->last != t) {
if (fj->client != NULL)
server_status_client(fj->client);
fj->last = t;
}
}
/* Format job complete callback. */
static void
format_job_complete(struct job *job)
{
struct format_job *fj = job_get_data(job);
struct evbuffer *evb = job_get_event(job)->input;
char *line, *buf;
size_t len;
fj->job = NULL;
buf = NULL;
if ((line = evbuffer_readline(evb)) == NULL) {
len = EVBUFFER_LENGTH(evb);
buf = xmalloc(len + 1);
if (len != 0)
memcpy(buf, EVBUFFER_DATA(evb), len);
buf[len] = '\0';
} else
buf = line;
log_debug("%s: %p %s: %s", __func__, fj, fj->cmd, buf);
if (*buf != '\0' || !fj->updated) {
free(fj->out);
fj->out = buf;
} else
free(buf);
if (fj->status) {
if (fj->client != NULL)
server_status_client(fj->client);
fj->status = 0;
}
}
/* Find a job. */
static char *
format_job_get(struct format_expand_state *es, const char *cmd)
{
struct format_tree *ft = es->ft;
struct format_job_tree *jobs;
struct format_job fj0, *fj;
time_t t;
char *expanded;
int force;
struct format_expand_state next;
if (ft->client == NULL)
jobs = &format_jobs;
else if (ft->client->jobs != NULL)
jobs = ft->client->jobs;
else {
jobs = ft->client->jobs = xmalloc(sizeof *ft->client->jobs);
RB_INIT(jobs);
}
fj0.tag = ft->tag;
fj0.cmd = cmd;
if ((fj = RB_FIND(format_job_tree, jobs, &fj0)) == NULL) {
fj = xcalloc(1, sizeof *fj);
fj->client = ft->client;
fj->tag = ft->tag;
fj->cmd = xstrdup(cmd);
RB_INSERT(format_job_tree, jobs, fj);
}
format_copy_state(&next, es, FORMAT_EXPAND_NOJOBS|
FORMAT_EXPAND_NOCYCLE);
next.flags &= ~FORMAT_EXPAND_TIME;
expanded = format_expand1(&next, cmd);
if (fj->expanded == NULL || strcmp(expanded, fj->expanded) != 0) {
free((void *)fj->expanded);
fj->expanded = xstrdup(expanded);
force = 1;
} else
force = (ft->flags & FORMAT_FORCE);
t = time(NULL);
if (force && fj->job != NULL)
job_free(fj->job);
if (force || (fj->job == NULL && fj->last != t)) {
fj->job = job_run(expanded, 0, NULL, NULL, NULL,
server_client_get_cwd(ft->client, NULL), format_job_update,
format_job_complete, NULL, fj, JOB_NOWAIT, -1, -1);
if (fj->job == NULL) {
free(fj->out);
xasprintf(&fj->out, "<'%s' didn't start>", fj->cmd);
}
fj->last = t;
fj->updated = 0;
} else if (fj->job != NULL && (t - fj->last) > 1 && fj->out == NULL)
xasprintf(&fj->out, "<'%s' not ready>", fj->cmd);
free(expanded);
if (ft->flags & FORMAT_STATUS)
fj->status = 1;
if (fj->out == NULL)
return (xstrdup(""));
return (format_expand1(&next, fj->out));
}
/* Remove old jobs. */
static void
format_job_tidy(struct format_job_tree *jobs, int force)
{
struct format_job *fj, *fj1;
time_t now;
now = time(NULL);
RB_FOREACH_SAFE(fj, format_job_tree, jobs, fj1) {
if (!force && (fj->last > now || now - fj->last < 3600))
continue;
RB_REMOVE(format_job_tree, jobs, fj);
log_debug("%s: %s", __func__, fj->cmd);
if (fj->job != NULL)
job_free(fj->job);
free((void *)fj->expanded);
free((void *)fj->cmd);
free(fj->out);
free(fj);
}
}
/* Work around needless -Wformat-nonliteral gcc warning. */
#ifdef __GNUC__
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wformat-nonliteral"
#endif
static size_t
format_strftime(char *s, size_t max, const char *fmt, const struct tm *tm)
{
return (strftime(s, max, fmt, tm));
}
#ifdef __GNUC__
#pragma GCC diagnostic pop
#endif
/* Tidy old jobs for all clients. */
void
format_tidy_jobs(void)
{
struct client *c;
format_job_tidy(&format_jobs, 0);
TAILQ_FOREACH(c, &clients, entry) {
if (c->jobs != NULL)
format_job_tidy(c->jobs, 0);
}
}
/* Remove old jobs for client. */
void
format_lost_client(struct client *c)
{
if (c->jobs != NULL)
format_job_tidy(c->jobs, 1);
free(c->jobs);
}
/* Wrapper for asprintf. */
static char * printflike(1, 2)
format_printf(const char *fmt, ...)
{
va_list ap;
char *s;
va_start(ap, fmt);
xvasprintf(&s, fmt, ap);
va_end(ap);
return (s);
}
/* Callback for host. */
static void *
format_cb_host(__unused struct format_tree *ft)
{
char host[HOST_NAME_MAX + 1];
if (gethostname(host, sizeof host) != 0)
return (xstrdup(""));
return (xstrdup(host));
}
/* Callback for host_short. */
static void *
format_cb_host_short(__unused struct format_tree *ft)
{
char host[HOST_NAME_MAX + 1], *cp;
if (gethostname(host, sizeof host) != 0)
return (xstrdup(""));
if ((cp = strchr(host, '.')) != NULL)
*cp = '\0';
return (xstrdup(host));
}
/* Callback for pid. */
static void *
format_cb_pid(__unused struct format_tree *ft)
{
char *value;
xasprintf(&value, "%ld", (long)getpid());
return (value);
}
/* Callback for session_attached_list. */
static void *
format_cb_session_attached_list(struct format_tree *ft)
{
struct session *s = ft->s;
struct client *loop;
struct evbuffer *buffer;
int size;
char *value = NULL;
if (s == NULL)
return (NULL);
buffer = evbuffer_new();
if (buffer == NULL)
fatalx("out of memory");
TAILQ_FOREACH(loop, &clients, entry) {
if (loop->session == s) {
if (EVBUFFER_LENGTH(buffer) > 0)
evbuffer_add(buffer, ",", 1);
evbuffer_add_printf(buffer, "%s", loop->name);
}
}
if ((size = EVBUFFER_LENGTH(buffer)) != 0)
value = xmemdup(EVBUFFER_DATA(buffer), size);
evbuffer_free(buffer);
return (value);
}
/* Callback for session_alert. */
static void *
format_cb_session_alert(struct format_tree *ft)
{
struct session *s = ft->s;
struct winlink *wl;
char alerts[1024];
int alerted = 0;
if (s == NULL)
return (NULL);
*alerts = '\0';
RB_FOREACH(wl, winlinks, &s->windows) {
if ((wl->flags & WINLINK_ALERTFLAGS) == 0)
continue;
if (~alerted & wl->flags & WINLINK_ACTIVITY) {
strlcat(alerts, "#", sizeof alerts);
alerted |= WINLINK_ACTIVITY;
}
if (~alerted & wl->flags & WINLINK_BELL) {
strlcat(alerts, "!", sizeof alerts);
alerted |= WINLINK_BELL;
}
if (~alerted & wl->flags & WINLINK_SILENCE) {
strlcat(alerts, "~", sizeof alerts);
alerted |= WINLINK_SILENCE;
}
}
return (xstrdup(alerts));
}
/* Callback for session_alerts. */
static void *
format_cb_session_alerts(struct format_tree *ft)
{
struct session *s = ft->s;
struct winlink *wl;
char alerts[1024], tmp[16];
if (s == NULL)
return (NULL);
*alerts = '\0';
RB_FOREACH(wl, winlinks, &s->windows) {
if ((wl->flags & WINLINK_ALERTFLAGS) == 0)
continue;
xsnprintf(tmp, sizeof tmp, "%u", wl->idx);
if (*alerts != '\0')
strlcat(alerts, ",", sizeof alerts);
strlcat(alerts, tmp, sizeof alerts);
if (wl->flags & WINLINK_ACTIVITY)
strlcat(alerts, "#", sizeof alerts);
if (wl->flags & WINLINK_BELL)
strlcat(alerts, "!", sizeof alerts);
if (wl->flags & WINLINK_SILENCE)
strlcat(alerts, "~", sizeof alerts);
}
return (xstrdup(alerts));
}
/* Callback for session_stack. */
static void *
format_cb_session_stack(struct format_tree *ft)
{
struct session *s = ft->s;
struct winlink *wl;
char result[1024], tmp[16];
if (s == NULL)
return (NULL);
xsnprintf(result, sizeof result, "%u", s->curw->idx);
TAILQ_FOREACH(wl, &s->lastw, sentry) {
xsnprintf(tmp, sizeof tmp, "%u", wl->idx);
if (*result != '\0')
strlcat(result, ",", sizeof result);
strlcat(result, tmp, sizeof result);
}
return (xstrdup(result));
}
/* Callback for window_stack_index. */
static void *
format_cb_window_stack_index(struct format_tree *ft)
{
struct session *s;
struct winlink *wl;
u_int idx;
char *value = NULL;
if (ft->wl == NULL)
return (NULL);
s = ft->wl->session;
idx = 0;
TAILQ_FOREACH(wl, &s->lastw, sentry) {
idx++;
if (wl == ft->wl)
break;
}
if (wl == NULL)
return (xstrdup("0"));
xasprintf(&value, "%u", idx);
return (value);
}
/* Callback for window_linked_sessions_list. */
static void *
format_cb_window_linked_sessions_list(struct format_tree *ft)
{
struct window *w;
struct winlink *wl;
struct evbuffer *buffer;
int size;
char *value = NULL;
if (ft->wl == NULL)
return (NULL);
w = ft->wl->window;
buffer = evbuffer_new();
if (buffer == NULL)
fatalx("out of memory");
TAILQ_FOREACH(wl, &w->winlinks, wentry) {
if (EVBUFFER_LENGTH(buffer) > 0)
evbuffer_add(buffer, ",", 1);
evbuffer_add_printf(buffer, "%s", wl->session->name);
}
if ((size = EVBUFFER_LENGTH(buffer)) != 0)
value = xmemdup(EVBUFFER_DATA(buffer), size);
evbuffer_free(buffer);
return (value);
}
/* Callback for window_active_sessions. */
static void *
format_cb_window_active_sessions(struct format_tree *ft)
{
struct window *w;
struct winlink *wl;
u_int n = 0;
char *value;
if (ft->wl == NULL)
return (NULL);
w = ft->wl->window;
TAILQ_FOREACH(wl, &w->winlinks, wentry) {
if (wl->session->curw == wl)
n++;
}
xasprintf(&value, "%u", n);
return (value);
}
/* Callback for window_active_sessions_list. */
static void *
format_cb_window_active_sessions_list(struct format_tree *ft)
{
struct window *w;
struct winlink *wl;
struct evbuffer *buffer;
int size;
char *value = NULL;
if (ft->wl == NULL)
return (NULL);
w = ft->wl->window;
buffer = evbuffer_new();
if (buffer == NULL)
fatalx("out of memory");
TAILQ_FOREACH(wl, &w->winlinks, wentry) {
if (wl->session->curw == wl) {
if (EVBUFFER_LENGTH(buffer) > 0)
evbuffer_add(buffer, ",", 1);
evbuffer_add_printf(buffer, "%s", wl->session->name);
}
}
if ((size = EVBUFFER_LENGTH(buffer)) != 0)
value = xmemdup(EVBUFFER_DATA(buffer), size);
evbuffer_free(buffer);
return (value);
}
/* Callback for window_active_clients. */
static void *
format_cb_window_active_clients(struct format_tree *ft)
{
struct window *w;
struct client *loop;
struct session *client_session;
u_int n = 0;
char *value;
if (ft->wl == NULL)
return (NULL);
w = ft->wl->window;
TAILQ_FOREACH(loop, &clients, entry) {
client_session = loop->session;
if (client_session == NULL)
continue;
if (w == client_session->curw->window)
n++;
}
xasprintf(&value, "%u", n);
return (value);
}
/* Callback for window_active_clients_list. */
static void *
format_cb_window_active_clients_list(struct format_tree *ft)
{
struct window *w;
struct client *loop;
struct session *client_session;
struct evbuffer *buffer;
int size;
char *value = NULL;
if (ft->wl == NULL)
return (NULL);
w = ft->wl->window;
buffer = evbuffer_new();
if (buffer == NULL)
fatalx("out of memory");
TAILQ_FOREACH(loop, &clients, entry) {
client_session = loop->session;
if (client_session == NULL)
continue;
if (w == client_session->curw->window) {
if (EVBUFFER_LENGTH(buffer) > 0)
evbuffer_add(buffer, ",", 1);
evbuffer_add_printf(buffer, "%s", loop->name);
}
}
if ((size = EVBUFFER_LENGTH(buffer)) != 0)
value = xmemdup(EVBUFFER_DATA(buffer), size);
evbuffer_free(buffer);
return (value);
}
/* Callback for window_layout. */
static void *
format_cb_window_layout(struct format_tree *ft)
{
struct window *w = ft->w;
if (w == NULL)
return (NULL);
if (w->saved_layout_root != NULL)
return (layout_dump(w, w->saved_layout_root));
return (layout_dump(w, w->layout_root));
}
/* Callback for window_visible_layout. */
static void *
format_cb_window_visible_layout(struct format_tree *ft)
{
struct window *w = ft->w;
if (w == NULL)
return (NULL);
return (layout_dump(w, w->layout_root));
}
/* Callback for pane_start_command. */
static void *
format_cb_start_command(struct format_tree *ft)
{
struct window_pane *wp = ft->wp;
if (wp == NULL)
return (NULL);
return (cmd_stringify_argv(wp->argc, wp->argv));
}
/* Callback for pane_start_command_list. */
static void *
format_cb_start_command_list(struct format_tree *ft)
{
struct window_pane *wp = ft->wp;
char *buf = NULL, *s;
size_t len = 0;
int i;
if (wp == NULL)
return (NULL);
if (wp->argc == 0)
return (xstrdup(""));
for (i = 0; i < wp->argc; i++) {
s = format_quote_shell_single(wp->argv[i]);
len += strlen(s) + 1;
buf = xrealloc(buf, len);
if (i == 0)
*buf = '\0';
else
strlcat(buf, " ", len);
strlcat(buf, s, len);
free(s);
}
return (buf);
}
/* Callback for pane_start_path. */
static void *
format_cb_start_path(struct format_tree *ft)
{
struct window_pane *wp = ft->wp;
if (wp == NULL)
return (NULL);
if (wp->cwd == NULL)
return (xstrdup(""));
return (xstrdup(wp->cwd));
}
/* Callback for pane_current_command. */
static void *
format_cb_current_command(struct format_tree *ft)
{
struct window_pane *wp = ft->wp;
char *cmd, *value;
if (wp == NULL || wp->shell == NULL)
return (NULL);
cmd = osdep_get_name(wp->fd, wp->tty);
if (cmd == NULL || *cmd == '\0') {
free(cmd);
cmd = cmd_stringify_argv(wp->argc, wp->argv);
if (cmd == NULL || *cmd == '\0') {
free(cmd);
cmd = xstrdup(wp->shell);
}
}
value = parse_window_name(cmd);
free(cmd);
return (value);
}
/* Callback for pane_current_path. */
static void *
format_cb_current_path(struct format_tree *ft)
{
struct window_pane *wp = ft->wp;
char *cwd;
if (wp == NULL)
return (NULL);
cwd = osdep_get_cwd(wp->fd);
if (cwd == NULL)
return (NULL);
return (xstrdup(cwd));
}
/* Callback for history_bytes. */
static void *
format_cb_history_bytes(struct format_tree *ft)
{
struct window_pane *wp = ft->wp;
struct grid *gd;
struct grid_line *gl;
size_t size = 0;
u_int i;
char *value;
if (wp == NULL)
return (NULL);
gd = wp->base.grid;
for (i = 0; i < gd->hsize + gd->sy; i++) {
gl = grid_get_line(gd, i);
size += gl->cellsize * sizeof *gl->celldata;
size += gl->extdsize * sizeof *gl->extddata;
}
size += (gd->hsize + gd->sy) * sizeof *gl;
xasprintf(&value, "%zu", size);
return (value);