jpmschweitzerandClaude
edd8a20e0d
PtySession wraps the ptyc helper: socketpair + Process.start + recvmsg with SCM_RIGHTS for master-fd transfer, a background isolate that loops on blocking read() and posts byte chunks, plus write/resize/ kill/close. close() SIGTERMs the child so the PTY's EOF wakes the reader naturally; SIGKILL + fd close + isolate kill cover the edge where the shell ignores SIGTERM — avoids the known Linux quirk where closing an fd doesn't unblock an in-flight read() on it. Env defaults stamp TERM=xterm-256color, COLORTERM=truecolor, CLICOLOR_FORCE=1 so shells + tmux + Claude emit 24-bit sequences that xterm.dart can render. User env (HOME / USER / SHELL) still inherits via mergePtyEnv(). ffi: 2.1.3 added as a runtime dep — the FFI bindings for socketpair, recvmsg, read/write, and ioctl(TIOCSWINSZ) need an allocator we're not writing by hand. Justified in pubspec + listed in licenses.yaml per D-042. make test-core (ci/test_core.sh) runs the Flutter-free core tests under a 120s hard timeout with setsid + process-group kill, wired ahead of the fast app tests in push-check so a hung PTY test can't wedge a pre-push. Current core suite: 24 tests in ~1s. Co-Authored-By: Claude <noreply@anthropic.com>
36 lines
1.3 KiB
Dart
36 lines
1.3 KiB
Dart
/// Default environment for PTY-spawned children.
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///
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/// `xterm.dart` on the UI side + most shells + tmux + Claude CLI all
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/// understand the 24-bit-colour triplet `TERM=xterm-256color` +
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/// `COLORTERM=truecolor`. Without `COLORTERM` most apps fall back to
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/// the 256-colour palette and the terminal looks washed out even though
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/// the renderer can do true colour.
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library;
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/// Base env clide's daemon builds for every PTY child. Callers merge
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/// with the user's environment before passing to `ptyc` — a child that
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/// needs user env like `HOME` / `USER` / `SHELL` still gets them; the
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/// keys here override the ones the child cares about.
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const Map<String, String> clidePtyEnvDefaults = {
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'TERM': 'xterm-256color',
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'COLORTERM': 'truecolor',
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// Encourages 24-bit emission from tooling that checks this:
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'CLICOLOR_FORCE': '1',
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// tmux inherits these when clide spawns tmux; safe to propagate.
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'LANG': 'en_US.UTF-8',
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'LC_ALL': 'en_US.UTF-8',
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};
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/// Merge [base] onto the process environment; clide defaults override
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/// user env where they overlap. Explicit [overrides] win over both.
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Map<String, String> mergePtyEnv({
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required Map<String, String> processEnv,
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Map<String, String>? overrides,
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}) {
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return {
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...processEnv,
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...clidePtyEnvDefaults,
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if (overrides != null) ...overrides,
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};
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}
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