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// Copyright (c) 2007 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.
use crate::*;
pub static CMD_LIST_BUFFERS_ENTRY: cmd_entry = cmd_entry {
name: "list-buffers",
alias: Some("lsb"),
args: args_parse::new("F:f:O:o:r", 0, 0, None),
usage: "[-F format] [-f filter] [-O order] [-o json|jsonl|csv|tsv|table|yaml] [-r]",
flags: cmd_flag::CMD_AFTERHOOK,
exec: cmd_list_buffers_exec,
source: cmd_entry_flag::zeroed(),
target: cmd_entry_flag::zeroed(),
};
use crate::structured::{Field, FieldKind, OutputFormat, Structured};
const LIST_BUFFERS_FIELDS: &[Field] = &[
Field { key: "name", fmt: c!("#{buffer_name}"), kind: FieldKind::Str },
Field { key: "size", fmt: c!("#{buffer_size}"), kind: FieldKind::Int },
Field { key: "sample", fmt: c!("#{buffer_sample}"), kind: FieldKind::Str },
];
/// C `vendor/tmux/cmd-list-buffers.c:47`: `static enum cmd_retval cmd_list_buffers_exec(struct cmd *self, struct cmdq_item *item)`
unsafe fn cmd_list_buffers_exec(self_: *mut cmd, item: *mut cmdq_item) -> cmd_retval {
unsafe {
let args = cmd_get_args(self_);
let mut template: *const u8 = args_get(args, b'F');
if template.is_null() {
template = c!("#{buffer_name}: #{buffer_size} bytes: \"#{buffer_sample}\"");
}
let filter = args_get(args, b'f');
let mut structured = match OutputFormat::parse(args_get(args, b'o')) {
Ok(fmt) => fmt.map(|f| Structured::new(f, LIST_BUFFERS_FIELDS)),
Err(()) => {
cmdq_error!(item, "unknown -o format (want json, jsonl, csv or tsv)");
return cmd_retval::CMD_RETURN_ERROR;
}
};
// Collect buffers (paste_walk = insertion/time order), then honour -O/-r
// (vendor/tmux sort_get_buffers). ztmux already keeps buffers sorted in
// RB trees, but collecting + sorting mirrors the C's per-order criteria.
let mut list: Vec<*mut paste_buffer> = Vec::new();
let mut pb = null_mut();
loop {
pb = paste_walk(pb);
if pb.is_null() {
break;
}
list.push(pb);
}
let order = args_get(args, b'O');
if !order.is_null() {
match cstr_to_str_(order) {
Some("name") | Some("title") => {
list.sort_by(|&a, &b| (*a).name.cmp(&(*b).name));
}
// C SORT_CREATION: newest (higher order) first, tie-break by name.
Some("creation") => list.sort_by(|&a, &b| {
(*b).order.cmp(&(*a).order).then_with(|| (*a).name.cmp(&(*b).name))
}),
Some("size") => list.sort_by(|&a, &b| {
(*a).size.cmp(&(*b).size).then_with(|| (*a).name.cmp(&(*b).name))
}),
_ => {
cmdq_error!(item, "invalid sort order");
return cmd_retval::CMD_RETURN_ERROR;
}
}
// C `sort_qsort` (sort.c): `-r` reverses only when an order is
// active. With no `-O` the order is SORT_END and sort_qsort returns
// *before* honouring `reversed`, so bare `list-buffers -r` keeps the
// (newest-first) paste_walk order. Only reverse inside the `-O` arm.
if args_has(args, 'r') {
list.reverse();
}
}
for &pb in &list {
let ft = format_create(
cmdq_get_client(item),
item,
FORMAT_NONE,
format_flags::empty(),
);
format_defaults_paste_buffer(ft, pb);
let flag;
if !filter.is_null() {
let expanded = format_expand(ft, filter);
flag = format_true(expanded);
free_(expanded);
} else {
flag = true;
}
if flag {
if let Some(out) = structured.as_mut() {
out.add(ft);
} else {
let line = format_expand(ft, template);
cmdq_print!(item, "{}", _s(line));
free_(line);
}
}
format_free(ft);
}
if let Some(out) = structured.as_ref() {
cmdq_print!(item, "{}", out.render());
}
cmd_retval::CMD_RETURN_NORMAL
}
}