Session restore compatibility #149

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opened 2026-03-16 21:42:22 +00:00 by barrettruth · 0 comments

barrettruth commented

2026-03-16 21:42:22 +00:00

Problem

Oil buffers use buftype='acwrite', which mksession treats as "blank" when sessionoptions excludes "blank". This causes multiple downstream issues on session restore: skipped windows, extra buffers, stale preview state leading to E444: Cannot close last window.

Consolidates

stevearc/oil.nvim#232 — Cannot close last window (auto-session interaction)
stevearc/oil.nvim#664 — Session reload extra buffer
stevearc/oil.nvim#678 — buftype='acwrite' causes mksession to skip oil windows

Notes

Blocked on missing Neovim SessionWritePre event (needed to temporarily adjust buftype before session write). May become tractable if Neovim adds this event, or if a workaround via BufWriteCmd or mksession autocmd proves viable.

## Problem Oil buffers use `buftype='acwrite'`, which `mksession` treats as "blank" when `sessionoptions` excludes `"blank"`. This causes multiple downstream issues on session restore: skipped windows, extra buffers, stale preview state leading to `E444: Cannot close last window`. ## Consolidates - stevearc/oil.nvim#232 — Cannot close last window (auto-session interaction) - stevearc/oil.nvim#664 — Session reload extra buffer - stevearc/oil.nvim#678 — `buftype='acwrite'` causes `mksession` to skip oil windows ## Notes Blocked on missing Neovim `SessionWritePre` event (needed to temporarily adjust `buftype` before session write). May become tractable if Neovim adds this event, or if a workaround via `BufWriteCmd` or `mksession` autocmd proves viable.