Initial pre-release

tmux-party: share a tmux session with people on the same UNIX host.
Single-file POSIX shell (party) with a filesystem + tmux server-access
trust model. See README.md.

tests/10-skeleton.bats

@@ -0,0 +1,33 @@
+#!/usr/bin/env bats
+
+load 'helpers'
+
+setup() { setup_party_sandbox; }
+teardown() { teardown_party_sandbox; }
+
+@test "party with no args prints usage and exits non-zero" {
+  run "$PARTY_BIN"
+  [ "$status" -ne 0 ]
+  [[ "$output" == *"Usage:"* ]]
+  [[ "$output" == *"host"* ]]
+  [[ "$output" == *"join"* ]]
+}
+
+@test "party --help prints usage and exits zero" {
+  run "$PARTY_BIN" --help
+  [ "$status" -eq 0 ]
+  [[ "$output" == *"Usage:"* ]]
+}
+
+@test "party rejects unknown subcommands" {
+  run "$PARTY_BIN" rumpelstiltskin
+  [ "$status" -ne 0 ]
+  [[ "$output" == *"unknown subcommand"* ]]
+}
+
+@test "library mode: source returns without dispatching" {
+  load_party_lib
+  # If the script ran dispatch, we'd never get here. Reaching this
+  # assertion is the test.
+  [ -n "${PARTY_VERSION:-}" ]
+}