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Clean up capture-pane and add -P option to dump pending output, based on code
from George Nachman.
This commit is contained in:
Nicholas Marriott
parent
412ac6bc3a
commit
b5516771d3
@ -29,10 +29,16 @@
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enum cmd_retval cmd_capture_pane_exec(struct cmd *, struct cmd_q *);
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char *cmd_capture_pane_append(char *, size_t *, char *, size_t);
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char *cmd_capture_pane_pending(struct args *, struct window_pane *,
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size_t *);
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char *cmd_capture_pane_history(struct args *, struct cmd_q *,
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struct window_pane *, size_t *);
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const struct cmd_entry cmd_capture_pane_entry = {
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"capture-pane", "capturep",
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"ab:CeE:JpqS:t:", 0, 0,
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"[-aCeJpq] [-b buffer-index] [-E end-line] [-S start-line]"
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"ab:CeE:JpPqS:t:", 0, 0,
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"[-aCeJpPq] [-b buffer-index] [-E end-line] [-S start-line]"
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CMD_TARGET_PANE_USAGE,
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0,
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NULL,
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@ -40,92 +46,140 @@ const struct cmd_entry cmd_capture_pane_entry = {
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cmd_capture_pane_exec
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};
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char *
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cmd_capture_pane_append(char *buf, size_t *len, char *line, size_t linelen)
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{
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buf = xrealloc(buf, 1, *len + linelen + 1);
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memcpy(buf + *len, line, linelen);
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*len += linelen;
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return (buf);
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}
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char *
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cmd_capture_pane_pending(struct args *args, struct window_pane *wp,
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size_t *len)
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{
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char *buf, *line, tmp[5];
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size_t linelen;
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u_int i;
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if (wp->ictx.since_ground == NULL)
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return (xstrdup(""));
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line = EVBUFFER_DATA(wp->ictx.since_ground);
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linelen = EVBUFFER_LENGTH(wp->ictx.since_ground);
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buf = NULL;
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if (args_has(args, 'C')) {
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for (i = 0; i < linelen; i++) {
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if (line[i] >= ' ') {
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tmp[0] = line[i];
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tmp[1] = '\0';
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} else
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xsnprintf(tmp, sizeof tmp, "\\%03o", line[i]);
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buf = cmd_capture_pane_append(buf, len, tmp,
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strlen(tmp));
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}
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} else
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buf = cmd_capture_pane_append(buf, len, line, linelen);
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return (buf);
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}
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char *
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cmd_capture_pane_history(struct args *args, struct cmd_q *cmdq,
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struct window_pane *wp, size_t *len)
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{
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struct grid *gd;
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const struct grid_line *gl;
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struct grid_cell *gc = NULL;
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int n, with_codes, escape_c0, join_lines;
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u_int i, sx, top, bottom, tmp;
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char *cause, *buf, *line;
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size_t linelen;
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sx = screen_size_x(&wp->base);
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if (args_has(args, 'a')) {
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gd = wp->saved_grid;
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if (gd == NULL) {
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if (!args_has(args, 'q')) {
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cmdq_error(cmdq, "no alternate screen");
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return (NULL);
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}
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return (xstrdup(""));
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}
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} else
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gd = wp->base.grid;
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n = args_strtonum(args, 'S', INT_MIN, SHRT_MAX, &cause);
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if (cause != NULL) {
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top = gd->hsize;
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free(cause);
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} else if (n < 0 && (u_int) -n > gd->hsize)
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top = 0;
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else
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top = gd->hsize + n;
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if (top > gd->hsize + gd->sy - 1)
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top = gd->hsize + gd->sy - 1;
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n = args_strtonum(args, 'E', INT_MIN, SHRT_MAX, &cause);
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if (cause != NULL) {
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bottom = gd->hsize + gd->sy - 1;
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free(cause);
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} else if (n < 0 && (u_int) -n > gd->hsize)
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bottom = 0;
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else
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bottom = gd->hsize + n;
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if (bottom > gd->hsize + gd->sy - 1)
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bottom = gd->hsize + gd->sy - 1;
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if (bottom < top) {
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tmp = bottom;
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bottom = top;
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top = tmp;
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}
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with_codes = args_has(args, 'e');
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escape_c0 = args_has(args, 'C');
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join_lines = args_has(args, 'J');
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buf = NULL;
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for (i = top; i <= bottom; i++) {
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line = grid_string_cells(gd, 0, i, sx, &gc, with_codes,
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escape_c0, !join_lines);
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linelen = strlen(line);
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buf = cmd_capture_pane_append(buf, len, line, linelen);
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gl = grid_peek_line(gd, i);
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if (!join_lines || !(gl->flags & GRID_LINE_WRAPPED))
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buf[(*len)++] = '\n';
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free(line);
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}
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return (buf);
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}
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enum cmd_retval
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cmd_capture_pane_exec(struct cmd *self, struct cmd_q *cmdq)
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{
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struct args *args = self->args;
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struct client *c;
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struct window_pane *wp;
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char *buf, *line, *cause;
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struct screen *s;
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struct grid *gd;
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int buffer, n, with_codes, escape_c0, join_lines;
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u_int i, limit, top, bottom, tmp, sx;
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size_t len, linelen;
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struct grid_cell *gc;
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const struct grid_line *gl;
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char *buf, *cause;
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int buffer;
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u_int limit;
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size_t len;
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if (cmd_find_pane(cmdq, args_get(args, 't'), NULL, &wp) == NULL)
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return (CMD_RETURN_ERROR);
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if (args_has(args, 'a')) {
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s = NULL;
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gd = wp->saved_grid;
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sx = screen_size_x(&wp->base);
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if (gd == NULL && !args_has(args, 'q')) {
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cmdq_error(cmdq, "no alternate screen");
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return (CMD_RETURN_ERROR);
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}
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} else {
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s = &wp->base;
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sx = screen_size_x(s);
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gd = s->grid;
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}
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buf = NULL;
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len = 0;
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if (gd != NULL) {
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n = args_strtonum(args, 'S', INT_MIN, SHRT_MAX, &cause);
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if (cause != NULL) {
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top = gd->hsize;
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free(cause);
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} else if (n < 0 && (u_int) -n > gd->hsize)
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top = 0;
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else
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top = gd->hsize + n;
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if (top > gd->hsize + gd->sy - 1)
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top = gd->hsize + gd->sy - 1;
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n = args_strtonum(args, 'E', INT_MIN, SHRT_MAX, &cause);
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if (cause != NULL) {
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bottom = gd->hsize + gd->sy - 1;
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free(cause);
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} else if (n < 0 && (u_int) -n > gd->hsize)
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bottom = 0;
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else
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bottom = gd->hsize + n;
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if (bottom > gd->hsize + gd->sy - 1)
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bottom = gd->hsize + gd->sy - 1;
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if (bottom < top) {
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tmp = bottom;
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bottom = top;
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top = tmp;
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}
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with_codes = args_has(args, 'e');
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escape_c0 = args_has(args, 'C');
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join_lines = args_has(args, 'J');
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gc = NULL;
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for (i = top; i <= bottom; i++) {
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line = grid_string_cells(gd, 0, i, sx, &gc, with_codes,
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escape_c0, !join_lines);
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linelen = strlen(line);
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buf = xrealloc(buf, 1, len + linelen + 1);
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memcpy(buf + len, line, linelen);
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len += linelen;
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gl = grid_peek_line(gd, i);
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if (!join_lines || !(gl->flags & GRID_LINE_WRAPPED))
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buf[len++] = '\n';
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free(line);
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}
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} else
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buf = xstrdup("");
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if (args_has(args, 'P'))
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buf = cmd_capture_pane_pending(args, wp, &len);
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else
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buf = cmd_capture_pane_history(args, cmdq, wp, &len);
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if (buf == NULL)
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return (CMD_RETURN_ERROR);
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if (args_has(args, 'p')) {
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c = cmdq->client;
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5
tmux.1
5
tmux.1
@ -1066,7 +1066,7 @@ By default, it uses the format
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but a different format may be specified with
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.Fl F .
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.It Xo Ic capture-pane
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.Op Fl aepq
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.Op Fl aepPq
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.Op Fl b Ar buffer-index
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.Op Fl E Ar end-line
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.Op Fl S Ar start-line
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@ -1093,6 +1093,9 @@ attributes.
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also escapes non-printable characters as octal \\xxx.
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.Fl J
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joins wrapped lines and preserves trailing spaces at each line's end.
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.Fl P
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captures only any output that the pane has received that is the beginning of an
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as-yet incomplete escape sequence.
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.Pp
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.Fl S
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and
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