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ADFA-6385 | Reuse plugin terminal sessions and track running commands - #2113
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Addresses PR #2113 review F07 and F08. No behaviour change. - CommandIntentRouter.route called claim() then start() back to back on the main thread, so the Claimed and Cancelled states were unreachable. start(id, factory) now takes a queued command directly; State is Queued -> Running -> Ended. - Drop PluginSessionPool.owners/sessionsOf and TerminalCommandRequests.sessionsOf, which only tests used; the tests now check start/read/find instead.
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Addresses PR #2113 review F01-F06. - F01: a session idle by its last finish mark is reused only if its shell holds the terminal's foreground (tpgid from /proc/<shell>/stat), or the runner that just finished still does (agent-run now puts cogo-pid in its marks). One where the user started vim, top or a REPL counts as busy instead of having the run line typed into it. - F02: agent-run is written only when missing or stale, as a temp file renamed over the old one, so a bash still reading it in another session is not cut short. - F03: a command interrupted by a cancelled caller or plugin unload has 5 s to exit after Ctrl-C, then its session is killed; the session stays on screen and the exit is reported, so it no longer holds a slot for good. - F04: stopSession finds the command by (plugin, session name) through TerminalCommandRequests, so it reaches commands of cancelled callers and of the plugin before a reload. - F05: a busy session pruned because it left the Terminal reports its command as exited, so a waiting caller no longer hangs. - F06: a session keeps the name it was opened with; a user rename no longer hides it from readSession/stopSession or reissues the name. Each new regression test was checked to fail with its fix reverted.
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Approving at 293dc4033, on top of Hal's approval at c56ac21a3. This is the top of the stack (#2110 <- #2113).
The merge of #2110's 1e12a585b kept the re-enable fix through this PR's rewrite: reopen() at IdeTerminalServiceImpl.kt:217, called from enablePlugin (PluginManager.kt:1136), pinned by reopenAfterCancelAllRunsAgain.
Hal's earlier findings (F01-F08 and the three IMPORTANT from the second round) are fixed at this head. The PR's unit tests pass locally: plugin-manager IdeTerminalServiceImplTest 32, termux-app terminal tests 97, termux-emulator ShellIntegrationTest 8. Nothing exercised on a device. A few non-blocking findings from my review pass follow separately, if they survive verification.
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Reviewed at 293dc4033 against ADFA-6385. My approval at this head stands; these findings are for this PR or a follow-up. Hal approved earlier, at c56ac21a3.
Stack: this is the top of #2110 <- #2113, so this head is the tip and claims were checked here. It includes #2110's 1e12a585b, and reopen() survived the merge.
Severity index
IMPORTANT
TerminalCommandRequests.kt:203- a new session whose runner never starts leaves its command Running forever
MINOR
TerminalActivity.kt:113- a second request before the service connects replaces the firstTerminalActivity.kt:147-/procread on the main thread underallowThreadDiskReadsAgentRunner.kt:97- the runner path depends on the profile's TMPDIRTerminalCommandRequests.kt:169- a killed session reports -9 where the API documents -1- PR description - names
readSession/stopSession(below)
NITPICK - 1, below
Findings without a diff anchor
MINOR: The PR description still describes readSession and stopSession, which c56ac21a3 replaced with readCommand(commandId) and stopCommand(commandId, waitMillis). QA working from it will look for methods that no longer exist. Update it to the current API.
NITPICK: The PR body opens with "## Description"; CLAUDE.md (Pull requests) asks for the Jira link as its first line.
Earlier rounds, checked at head
- F01, run line typed into a user's program: fixed, a session counts as idle only when its shell or last runner holds the foreground (
PluginSessionPool.kt:62,TerminalCommandRequests.kt:82). - F02, runner rewritten in place: fixed, written only when stale, through a temp file and a rename (
AgentRunner.kt:43-53). - F03, no guaranteed kill: fixed, Ctrl-C, then
killafter 5 s (PluginTerminalLauncher.kt:114-118,TerminalCommandRequests.kt:114-116). - F04, stop limited to this instance's commands: fixed,
stopCommandgoes through the launcher (IdeTerminalServiceImpl.kt:190). - F05, pruned sessions never reported: fixed,
prunereturns them and each is reported (TerminalCommandRequests.kt:78,:165-171). - F06, a rename hides the session: fixed, the name is kept from when it opened (
PluginSessionPool.kt:27-30). - F07, unreachable states: fixed, Queued -> Running -> Ended (
TerminalCommand.kt:74-84). - F08, test-only API: fixed,
ownersand bothsessionsOfare gone. - Session reuse confusing read and stop: fixed, by command id, with each plugin's last 8 exits kept (
TerminalCommandRequests.kt:146-153,:242-244). - Lost end mark: fixed for a typed run and for a runner that reported in (
TerminalCommandRequests.kt:179-223); a first run whose runner never starts is the IMPORTANT finding. - First command without the profile: fixed,
bash -l -c(AgentRunner.kt:77). - Re-enable cancelling every later run (#2110):
reopen()kept through the merge (IdeTerminalServiceImpl.kt:217,PluginManager.kt:1136).
Evidence
| Area | Result |
|---|---|
| Ticket | The acceptance criteria map to code and tests; readSession in them became readCommand/stopCommand by command id at Hal's request. |
| §1 Exceptions | Failures reach plugins as NotStarted, Running or Completed(-1); cancellation is rethrown after the interrupt. |
| §2 Leaks | Commands are interrupted, then killed, on cancel and unload; exited results are capped at 8 per plugin. |
| §3 Threading | /proc and file I/O go through io except the idle check (inline). |
| §4 Security | SYSTEM_COMMANDS on run, read and stop; reads and stops are limited to the plugin's own commands; the command reaches bash through a file, not the command line. |
| §5 Tests | Run locally, all passing: plugin-manager IdeTerminalServiceImplTest 32 at this head; termux-app terminal tests 97 and termux-emulator ShellIntegrationTest 8 at 19f4e2b03 (the merge since touched no termux files). Not run: app PluginTerminalLauncherTest. CI green. Nothing exercised on a device, and the large-screen intent ordering is from the flags, not observed. |
| §13 Plugins | runInTerminal gained waitMillis, Running, readCommand and stopCommand, all in the 26.41 changelog. AI-Core's shell tool (plugin-examples feat/ADFA-6339-agent-run-shell-command) is the caller. |
Checked and not reported: a null foreground group counts as at-prompt, but an open session's shell is same-uid and its /proc entry is readable, and dead shells are pruned first; a dead runner is noticed only on a later read, which then reports Completed(-1); cancelling during prepare leaves the command's files in Termux's $TMPDIR until its service stops; each byte of a running command is rendered in a second emulator, which is the design that keeps its output apart.
Verdict rule: REVIEW.md, CLAUDE.md and CONTRIBUTING.md have no written approve/request-changes rule. The approval was a deliberate decision with the IMPORTANT finding open.
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October 12, 2026 15:08
The emulator now reports "ESC ] 133 ; <kind> ..." marks to its session instead of dropping them, and lets a caller tap the bytes it processes. The Terminal uses both to find where a plugin command's output starts and ends, and to record only that command's output.
Addresses PR #2113 review F07 and F08. No behaviour change. - CommandIntentRouter.route called claim() then start() back to back on the main thread, so the Claimed and Cancelled states were unreachable. start(id, factory) now takes a queued command directly; State is Queued -> Running -> Ended. - Drop PluginSessionPool.owners/sessionsOf and TerminalCommandRequests.sessionsOf, which only tests used; the tests now check start/read/find instead.
Addresses PR #2113 review F01-F06. - F01: a session idle by its last finish mark is reused only if its shell holds the terminal's foreground (tpgid from /proc/<shell>/stat), or the runner that just finished still does (agent-run now puts cogo-pid in its marks). One where the user started vim, top or a REPL counts as busy instead of having the run line typed into it. - F02: agent-run is written only when missing or stale, as a temp file renamed over the old one, so a bash still reading it in another session is not cut short. - F03: a command interrupted by a cancelled caller or plugin unload has 5 s to exit after Ctrl-C, then its session is killed; the session stays on screen and the exit is reported, so it no longer holds a slot for good. - F04: stopSession finds the command by (plugin, session name) through TerminalCommandRequests, so it reaches commands of cancelled callers and of the plugin before a reload. - F05: a busy session pruned because it left the Terminal reports its command as exited, so a waiting caller no longer hangs. - F06: a session keeps the name it was opened with; a user rename no longer hides it from readSession/stopSession or reissues the name. Each new regression test was checked to fail with its fix reverted.
F09 - address commands by id, not session name. Sessions are reused, so
the session named in a Running result could later hold another command
of the same plugin: stopSession("P 1") could Ctrl-C another caller's
Gradle run, and readSession handed it that command's output. Running now
carries a commandId, and readSession/stopSession become
readCommand(commandId)/stopCommand(commandId, waitMillis). The last 8
exited results per plugin are kept, so a command's own result is still
readable after its session moves on. The API is unreleased (26.41).
F10 - end a command whose end mark never arrives (runner SIGKILLed, mark
swallowed by an unterminated escape sequence, or the typed run line taken
by a `read`/PS2 prompt), which otherwise kept its session busy for good.
Each look at a busy command checks, off the main thread, whether the
shell holds the terminal again and the runner is gone:
- runner reported its pid (the C mark carries cogo-pid): gone once that
pid is no longer a child of the shell; ended with exit code -1 only if
still gone 5 s later, so an end mark still in flight wins.
- typed run line no runner took after 5 s: the command file is taken
back and the command ended. The runner claims its file with a rename,
so exactly one side gets it and a withdrawn command never starts late.
A new session's command is never taken back; its profile may be loading.
ForegroundProcessGroup becomes ProcStat, which also reads the parent pid.
F11 - start a new session's first command from a login shell
(`bash -l -c`), so it sees the profile like every later command typed
into the session's interactive `bash -l`. Commands still inherit what the
user exports in the session's shell; the API doc now says so.
- A new session's first command whose runner never reports in (e.g. the login profile execs zsh) is taken back and ends with -1 after FIRST_RUN_GRACE_MS (30 s), so it no longer holds the session forever. Longer than the 5 s typed-line grace so a slow profile is not mistaken for a dead one. - The idle sessions' foreground groups are read from /proc on io, and the slot is picked when the result posts back; no more allowThreadDiskReads on the main thread. start/route now report the session via a callback. - TerminalActivity keeps every command request that arrives before the service connects, instead of only the last. - The runner is invoked by its absolute path, not "$TMPDIR", so a profile that sets its own TMPDIR does not lose it. - A command whose session dies reports -1, as documented, not the shell's exit status (-9 after a kill).
Contributor
|
No actionable comments were generated in the recent review. 🎉 ℹ️ Recent review info
📝 Summary
Merge Risk: 🔵 Low · up to Plugin terminal commands now reuse sessions and support running, read, and stop results. One open concern remains: if preparing a command's files fails, for example because temporary storage is full, the plugin receives an unexpected error instead of a "not started" result. This is a narrow case and mergeable with owner awareness. Pre-merge checks |
  |
| Check name | Status | Explanation | Resolution |
|---|---|---|---|
| Docstring Coverage |  |
Docstring coverage is 20.15% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 412 functions across 51 files. (2 skipped… | Write docstrings for the functions missing them to satisfy the coverage threshold. |
✅ Passed checks (4 passed)
-
Check name Status Explanation Title check The title clearly identifies the main changes: plugin terminal session reuse and running-command tracking. Description check The description directly explains session reuse, command tracking, running results, command lookup, interruption, shell integration, and related backend changes. Linked Issues check Check skipped because no linked issues were found for this pull request. Out of Scope Changes check Check skipped because no linked issues were found for this pull request.
Full details: Docstring Coverage
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Explanation
Docstring coverage is 20.15% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 412 functions across 51 files. (2 skipped: 2 unsupported.)
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A rabbit queued a shell command with care,
Then watched its output appear in the air.
A session reused its warm terminal seat,
While marks told when the run was complete.
“Stop” or “read,” said the rabbit with cheer,
And hopped off with logs tucked near.
Comment @coderabbitai help to get the list of available commands.
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Actionable comments posted: 1
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Inline comments:
Review comments at
@app/src/main/java/com/itsaky/androidide/app/PluginTerminalLauncher.kt:
- Line 47: Update the runner.prepare call in launch() to catch
command-preparation failures and return a LaunchedTerminalCommand whose result
is completed with NotStarted; rethrow CancellationException so coroutine
cancellation remains intact.
After applying the fix, consider running `coderabbit review --agent` for local
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📒 Files selected for processing (67)
app/src/main/java/com/itsaky/androidide/actions/BaseBuildAction.ktapp/src/main/java/com/itsaky/androidide/actions/build/PluginBuildActionItem.ktapp/src/main/java/com/itsaky/androidide/activities/editor/ProjectHandlerActivity.ktapp/src/main/java/com/itsaky/androidide/app/CredentialProtectedApplicationLoader.ktapp/src/main/java/com/itsaky/androidide/app/PluginTerminalLauncher.ktapp/src/main/java/com/itsaky/androidide/quickbuild/GradleQuickBuildProvisioner.ktapp/src/main/java/com/itsaky/androidide/services/builder/BuildInProgressException.javaapp/src/main/java/com/itsaky/androidide/services/builder/GradleBuildService.ktapp/src/main/java/com/itsaky/androidide/viewmodel/BuildViewModel.ktapp/src/test/java/com/itsaky/androidide/actions/build/SlotBusyBuildActionsTest.ktapp/src/test/java/com/itsaky/androidide/app/PluginTerminalLauncherTest.ktapp/src/test/java/com/itsaky/androidide/quickbuild/GradleQuickBuildProvisionerFailureArmsTest.ktapp/src/test/java/com/itsaky/androidide/services/builder/GradleBuildServiceServerExitTest.ktapp/src/test/java/com/itsaky/androidide/services/builder/GradleBuildServiceSlotTest.ktapp/src/test/java/com/itsaky/androidide/viewmodel/BuildViewModelTest.ktdocs/PLUGIN_API_CHANGELOG.mddocs/plugin-api.mdplugin-api/api/plugin-api.apiplugin-api/src/main/kotlin/com/itsaky/androidide/plugins/extensions/BuildActionExtension.ktplugin-api/src/main/kotlin/com/itsaky/androidide/plugins/services/IdeServices.ktplugin-api/src/main/kotlin/com/itsaky/androidide/plugins/services/IdeTerminalService.ktplugin-manager/src/main/kotlin/com/itsaky/androidide/plugins/manager/core/PluginManager.ktplugin-manager/src/main/kotlin/com/itsaky/androidide/plugins/manager/services/GradleTaskExecution.ktplugin-manager/src/main/kotlin/com/itsaky/androidide/plugins/manager/services/GradleTaskRun.ktplugin-manager/src/main/kotlin/com/itsaky/androidide/plugins/manager/services/IdeBuildServiceImpl.ktplugin-manager/src/main/kotlin/com/itsaky/androidide/plugins/manager/services/IdeCommandServiceImpl.ktplugin-manager/src/main/kotlin/com/itsaky/androidide/plugins/manager/services/IdeTerminalServiceImpl.ktplugin-manager/src/main/kotlin/com/itsaky/androidide/plugins/manager/services/PluginBuildService.ktplugin-manager/src/main/kotlin/com/itsaky/androidide/plugins/manager/services/PluginWorkingDirectory.ktplugin-manager/src/test/kotlin/com/itsaky/androidide/plugins/manager/services/IdeBuildServiceImplExecuteTasksTest.ktplugin-manager/src/test/kotlin/com/itsaky/androidide/plugins/manager/services/IdeBuildServiceImplGetTasksTest.ktplugin-manager/src/test/kotlin/com/itsaky/androidide/plugins/manager/services/IdeCommandServiceImplGradleTaskTest.ktplugin-manager/src/test/kotlin/com/itsaky/androidide/plugins/manager/services/IdeTerminalServiceImplTest.ktplugin-manager/src/test/kotlin/com/itsaky/androidide/plugins/manager/services/PluginBuildServiceTest.ktplugin-manager/src/test/kotlin/com/itsaky/androidide/plugins/manager/services/PluginWorkingDirectoryTest.ktsubprojects/projects/src/main/java/com/itsaky/androidide/projects/builder/BuildService.ktsubprojects/tooling-api-impl/src/main/java/com/itsaky/androidide/tooling/impl/ToolingApiServerImpl.ktsubprojects/tooling-api-impl/src/main/java/com/itsaky/androidide/tooling/impl/util/GradleBuildExts.ktsubprojects/tooling-api-impl/src/test/java/com/itsaky/androidide/tooling/impl/util/GradleBuildExtsTest.ktsubprojects/tooling-api/src/main/java/com/itsaky/androidide/tooling/api/messages/result/TaskExecutionResult.kttermux/termux-app/src/main/java/com/itsaky/androidide/activities/TerminalActivity.kttermux/termux-app/src/main/java/com/itsaky/androidide/terminal/AgentRunner.kttermux/termux-app/src/main/java/com/itsaky/androidide/terminal/CommandIntentRouter.kttermux/termux-app/src/main/java/com/itsaky/androidide/terminal/CommandMarkListener.kttermux/termux-app/src/main/java/com/itsaky/androidide/terminal/CommandRecorder.kttermux/termux-app/src/main/java/com/itsaky/androidide/terminal/PluginSessionPool.kttermux/termux-app/src/main/java/com/itsaky/androidide/terminal/ProcStat.kttermux/termux-app/src/main/java/com/itsaky/androidide/terminal/TerminalCommand.kttermux/termux-app/src/main/java/com/itsaky/androidide/terminal/TerminalCommandRequests.kttermux/termux-app/src/main/java/com/itsaky/androidide/terminal/TerminalTranscript.kttermux/termux-app/src/main/java/com/termux/app/terminal/TermuxTerminalSessionActivityClient.javatermux/termux-app/src/main/java/com/termux/app/terminal/TermuxTerminalSessionServiceClient.javatermux/termux-app/src/main/resources/com/itsaky/androidide/terminal/agent-run.shtermux/termux-app/src/test/java/com/itsaky/androidide/terminal/AgentRunnerTest.kttermux/termux-app/src/test/java/com/itsaky/androidide/terminal/CommandIntentRouterTest.kttermux/termux-app/src/test/java/com/itsaky/androidide/terminal/CommandMarkListenerTest.kttermux/termux-app/src/test/java/com/itsaky/androidide/terminal/CommandRecorderTest.kttermux/termux-app/src/test/java/com/itsaky/androidide/terminal/PluginSessionPoolTest.kttermux/termux-app/src/test/java/com/itsaky/androidide/terminal/ProcStatTest.kttermux/termux-app/src/test/java/com/itsaky/androidide/terminal/TerminalCommandRequestsTest.kttermux/termux-app/src/test/java/com/itsaky/androidide/terminal/TerminalTranscriptTest.kttermux/termux-emulator/src/main/java/com/termux/terminal/ShellIntegrationMark.javatermux/termux-emulator/src/main/java/com/termux/terminal/TerminalEmulator.javatermux/termux-emulator/src/main/java/com/termux/terminal/TerminalOutput.javatermux/termux-emulator/src/main/java/com/termux/terminal/TerminalSession.javatermux/termux-emulator/src/test/java/com/termux/terminal/ShellIntegrationTest.javatermux/termux-emulator/src/test/java/com/termux/terminal/TerminalTestCase.java
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Description
Implemented session reuse and command isolation for the Plugin Terminal API. Commands now run in up to 3 reused sessions per plugin via an
agent-run.shscript to prevent environment changes (likecdorexport) from carrying over to the next command. IntroducedTerminalCommandResult.Runningfor long-running commands, allowing plugins to resume work if a command does not finish within the wait time. AddedCommandRecorderandCommandMarkListenerto parse OSC 133 shell-integration marks, which ensures plugins only receive the exact, clean output of their specific commands instead of mixed session outputs. Additionally, addedreadSessionto check on running commands andstopSessionto gracefully interrupt commands using Ctrl-C.Details
Logic-related backend changes for terminal session pooling, intent routing, and byte stream tapping.
Screen_Recording_20261007_161740_Code.on.the.Go.mp4
Ticket
ADFA-6385
Observation
#2110 Must be merged first.