Fix automatic Neovim yanks in remote sessions

migrations/1788996284.sh

@@ -0,0 +1,9 @@
+echo "Enable automatic Neovim clipboard yanks in remote sessions"
+
+nvim_provider="$HOME/.config/nvim/lua/config/remote_clipboard.lua"
+
+if [[ -f $nvim_provider ]] &&
+  grep -qF 'name = "OmarchyRemoteClipboard"' "$nvim_provider" &&
+  ! grep -qF 'vim.opt.clipboard = "unnamedplus"' "$nvim_provider"; then
+  sed -i '/^  vim.g.clipboard = {/i\  -- LazyVim disables clipboard syncing over SSH; our provider supports it.\n  vim.opt.clipboard = "unnamedplus"\n' "$nvim_provider"
+fi

test/shell.d/neovim-remote-yanks-test.sh

@@ -0,0 +1,52 @@
+#!/bin/bash
+
+set -euo pipefail
+
+source "$(cd -- "$(dirname -- "${BASH_SOURCE[0]}")" && pwd)/base-test.sh"
+
+test_home=$(mktemp -d)
+trap 'rm -rf "$test_home"' EXIT
+provider="$test_home/.config/nvim/lua/config/remote_clipboard.lua"
+migration="$ROOT/migrations/1788996284.sh"
+
+env HOME="$test_home" bash -euo pipefail "$migration"
+[[ ! -e $provider ]] || fail "missing Neovim config is left alone"
+pass "missing Neovim config is left alone"
+
+mkdir -p "$(dirname "$provider")"
+printf '%s\n' '-- Custom provider' >"$provider"
+cp "$provider" "$test_home/before.lua"
+env HOME="$test_home" bash -euo pipefail "$migration"
+cmp "$provider" "$test_home/before.lua" || fail "custom provider is preserved"
+pass "custom provider is preserved"
+
+cat >"$provider" <<'LUA'
+local M = {}
+function M.setup()
+  if not vim.env.SSH_CONNECTION then
+    return
+  end
+  vim.g.clipboard = {
+    name = "OmarchyRemoteClipboard",
+  }
+end
+return M
+LUA
+env HOME="$test_home" bash -euo pipefail "$migration"
+require_command nvim
+cat >"$test_home/check.lua" <<'LUA'
+vim.env.SSH_CONNECTION = nil
+vim.opt.clipboard = ""
+dofile(vim.env.TEST_PROVIDER).setup()
+assert(vim.o.clipboard == "")
+vim.env.SSH_CONNECTION = "test"
+dofile(vim.env.TEST_PROVIDER).setup()
+assert(vim.o.clipboard == "unnamedplus")
+LUA
+env NVIM_LOG_FILE="$test_home/nvim.log" TEST_PROVIDER="$provider" nvim --clean -n --headless -i NONE -l "$test_home/check.lua"
+pass "clipboard syncing is enabled inside remote provider setup"
+
+cp "$provider" "$test_home/once.lua"
+env HOME="$test_home" bash -euo pipefail "$migration"
+cmp "$provider" "$test_home/once.lua" || fail "migration is idempotent"
+pass "migration is idempotent"