Files
tty7/crates
l0ng-ai bf5149bea0 fix(editor): stop losing edits, share buffers, add file strip, quick open and go to line (#984)
* fix(host): save local files atomically via a temp file and rename

LocalHost::write_file truncated the target in place, so a crash, a full
disk or a killed process mid-save destroyed the user's file. It now
writes a hidden sibling temp file, syncs it, keeps the old file's mode
and renames it over the target, removing the temp file on any error.

It still writes in place where a rename would change something visible:
a non-regular target (symlink, directory, FIFO), a read-only file, and on
Unix a hard-linked file or one owned by another user, or when the temp
file cannot be created (e.g. a read-only directory).

* feat(editor): add editor_text for encodings, line endings, indentation and EditorConfig

A pure module the code editor will use when loading and saving files:
decode detects BOMs, binary files, UTF-8, GB18030 and a lossless
Windows-1252 fallback and normalises CRLF; encode restores the exact
bytes and names the first unrepresentable character; detect_indent
infers tabs or a 2/4/8 space width with language defaults; and
editorconfig_for resolves .editorconfig sections with save-time rules.

* feat(editor): share buffers across tabs, guard unsaved work, add a file strip

- One buffer per file per window; tabs list which buffers they show. The
  same file open in two tabs is no longer two diverging copies.
- Closing a tab, its last pane, the window, or quitting asks about unsaved
  files (Save / Cancel / Discard) instead of dropping them. Bulk closes skip
  tabs with unsaved files; a tab that vanishes any other way hands its
  unsaved buffers to the tab in front.
- File tree rename/delete now retarget or flag the open buffer, so a save
  no longer recreates the old path.
- Saves check the file's mtime first and ask before overwriting a change
  made elsewhere; this is the only detection SFTP buffers get.
- Dirty is a comparison with the saved text, so undoing back clears it.
- Reloads replace only the changed span as an ordinary edit, keeping undo.
- Load/save go through editor_text: encoding, BOM and CRLF round-trip,
  indentation is detected, .editorconfig is honoured.
- Header shows a strip of open files; New File, Save As (native panel
  locally, a path bar remotely), Go to Line (Ctrl+G), and the status bar
  shows indentation, encoding and a clickable line ending.
- Open files are remembered per tab across restarts.

* feat(search): quick open a file by name from a Files tab

Search Everywhere gains a Files tab that finds any file in the active
tab's project by fuzzy name and opens it in the built-in editor, with
`name:line[:col]` jumping to that spot. The list comes from one walk of
the project through the host (Host::search with an empty query), so it
works the same on local, SSH and WSL workspaces and skips what the tree
hides: dotfiles, .git and gitignored paths. The walk is capped at 50k
entries / 20k directories, kept between openings and revalidated in the
background each time the search opens.

Files join the All tab once a query finds them. Go to File... is bound to
Cmd+O on macOS (Cmd+P is already Search Everywhere) and ships unbound
elsewhere, where every obvious chord is taken or owed to the shell.

* chore(editor): allowlist the editor session file, tidy lints

* fix(editor): keep restored file order, drop stale close waits, carry files through tab merges

- Background arrivals (restore, merge, rescue) append to the strip in order
  instead of inserting beside the active file, which reversed them.
- A cancelled Save As, a dismissed path bar, or a dropped buffer cancels any
  close that was waiting on that save.
- Merging a tab into another carries its open files along.
- A shell exiting closes its tab without a prompt it could not honour;
  unsaved buffers move to the tab in front.
- Tabs rebuilt under the same id (server restart) restore their files.

* fix(host): only fall back to an in-place write when the rename is refused

On Windows every failure of the atomic save fell back to fs::write,
including a failure while staging the temp file. A full disk would then
truncate the original in place, the very loss the temp file prevents.
Staging errors now return as-is; only a refused rename (a file held open
elsewhere) takes the in-place path.
2026-09-28 00:32:18 +08:00
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