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feat(config): add per-host/bucket extra args for SSH, S3, and FTP (#171)

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* fix(view): reapply column highlights after paste and buffer edits

Problem: Column extmarks (icon color, per-character permissions) are
applied via `util.set_highlights` only during `render_buffer`. Neovim
does not duplicate extmarks on yank/paste, so lines inserted via `yyp`
or `p` render without any column highlights.

Solution: Store `col_width` and `col_align` in `session[bufnr]` after
each render. Add `M.reapply_highlights` which re-parses all buffer
lines, reconstructs the column chunk table, and re-applies extmarks via
`util.set_highlights`. Wire it to a `TextChanged` autocmd (guarded by
`_rendering[bufnr]` to skip oil's own `nvim_buf_set_lines` calls).

* fix(view): resolve LuaLS warnings in `reapply_highlights`

* feat(config): add per-host/bucket extra args for SSH, S3, and FTP

Problem: `extra_scp_args`, `extra_s3_args`, and `extra_curl_args` are
global — there's no way to pass adapter-specific args only to a single
host or bucket (e.g. `-O` for a Synology NAS that requires legacy SCP
protocol, or `--endpoint-url` for an R2 bucket).

Solution: add `ssh_hosts`, `s3_buckets`, and `ftp_hosts` config tables
that map exact hostnames/bucket names to per-target arg lists. Per-target
args are appended after the global args at call time. The `scp()` helper
in `ssh.lua` accepts a `hosts` list so cross-host copies deduplicate
host lookups. `create_s3_command` in `s3fs.lua` extracts the bucket from
the command args with no call-site changes needed. `resolved_curl_args`
in `ftp.lua` is called by both `curl()` and `ftpcmd()`.

Based on: stevearc/oil.nvim#607
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Barrett Ruth 2026-03-18 12:40:32 -04:00 • committed by GitHub
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@ -99,7 +99,7 @@ issues against this fork.
| [#578](https://github.com/stevearc/oil.nvim/issues/578) | Hidden file dimming recipe | fixed |
| [#587](https://github.com/stevearc/oil.nvim/issues/587) | Alt+h keymap | not actionable — user config issue |
| [#599](https://github.com/stevearc/oil.nvim/issues/599) | user:group display and manipulation | consolidated into [#126](https://github.com/barrettruth/canola.nvim/issues/126) |
| [#607](https://github.com/stevearc/oil.nvim/issues/607) | Per-host SCP args | open |
| [#607](https://github.com/stevearc/oil.nvim/issues/607) | Per-host SCP args | fixed |
| [#609](https://github.com/stevearc/oil.nvim/issues/609) | Cursor placement via Snacks picker | not actionable — Windows-only |
| [#612](https://github.com/stevearc/oil.nvim/issues/612) | Delete buffers on file delete | fixed |
| [#615](https://github.com/stevearc/oil.nvim/issues/615) | Cursor at name column on o/O | fixed ([#72](https://github.com/barrettruth/canola.nvim/pull/72)) |