Files
hermes-agent/hermes_cli/plugins_cmd_install.py
Siddharth Balyan a59453b1cc Setup chat: working row after a card, install step on the catalog card (#129210)
* fix(desktop): show the working row right after a setup card is answered

A hidden setup prompt appends no user row, so the card's own message stays
the tail and its gap row timed the wait from when the card was drawn (it read
like a stale '2m 10s'). An answered setup_choose card kept the row off while
its tool call was open, then waited out the 2s quiet window. And in the guided
chat, where reasoning is not drawn, streamed reasoning counted as progress: the
pre-first-token row vanished on the first reasoning token and the gap row
never qualified while the model thought.

The user handing the turn back (a new turn under the card, or an answered
question card) now shows the row at once, timed from that moment. Question
cards neither narrate the wait nor count as agent progress. Undrawn reasoning
is not progress, and a reply that has only thought so far keeps the
pre-first-token row.

* feat(desktop): name the install step on the catalog install card

The catalog install worker now reports its phase through the operation's
existing detail field (operation.refresh -> connection.update): Downloading,
Installing Python packages (only when the plugin declares any), Loading its
tools. dashboard_install_plugin takes an optional on_step callback for this.
The card draws the step as one muted line under the bar.
2026-09-30 16:25:54 +05:30

640 lines
30 KiB
Python

"""``hermes plugins install``: dependency/env consent, the atomic clone-scan-publish installer core, and
the dashboard/TUI non-interactive install.
Sibling of :mod:`hermes_cli.plugins_cmd` (the facade re-exports the names other modules use and is
imported late here, never at module level).
"""
from __future__ import annotations
import logging
import os
import sys
import tempfile
from pathlib import Path
from typing import Any, Callable, Optional
from hermes_cli.cli_output import line_input
logger = logging.getLogger(__name__)
def _pc():
"""The facade, read at call time: tests patch ``plugins_cmd.<name>`` and sibling calls must see it."""
from hermes_cli import plugins_cmd
return plugins_cmd
def _install_plugin_python_deps(
manifest: dict, target: Path, console
) -> tuple[bool, Optional[str]]:
"""Consent gate for plugin python deps (settled 2026-09-02; C13 rework).
Node sidecar: y/n prompt → ``npm ci`` into the plugin's OWN
node_modules (separate question, failure never blocks enable).
Python deps: NO resolution here — the resolve runs inside the ONE
admission transaction when the enable commits
(:func:`_admit_and_save_plugin_sets`), so the environment and the
config always change together or not at all. Returns (consented,
reason): consented=True when the user accepted (or no prompt was
needed); a decline/skip returns False and NOTHING is installed.
Never raises — the caller keeps the plugin installed-but-disabled.
"""
from pm.plugin_declarations import read_python_declaration
try:
declaration = read_python_declaration(target)
deps = declaration.install_requirements
except Exception as exc:
return False, f"invalid Python dependency declaration: {exc}"
has_python = declaration.is_member
has_package_json = (target / "package.json").is_file()
if not has_python and not has_package_json:
return True, None # no declared deps at all
# Node sidecar (package.json): the npm ci executor — separate consent
# question, same try-then-enable posture. Failure never blocks the
# python path below.
node_reason = None
if has_package_json:
console.print(f"\n[bold]{manifest.get('name', 'this plugin')}[/bold] declares Node dependencies (package.json).")
if sys.stdin.isatty() and sys.stdout.isatty():
try:
node_answer = input(
" Install them into the plugin's own node_modules now? [y/N]: "
).strip().lower()
except (EOFError, KeyboardInterrupt):
node_answer = ""
else:
node_answer = ""
if node_answer in {"y", "yes"}:
from pm.workspace import install_node_sidecar
node_reason = install_node_sidecar(target, explicit=True)
if node_reason:
console.print(f"[yellow]⚠[/yellow] Node deps: {node_reason}")
else:
console.print("[dim]Skipped Node deps — run `hermes plugins install` again to retry.[/dim]\n")
if not has_python:
return True, None
return _consent_python_deps(manifest.get("name", "this plugin"), deps, console)
def _consent_python_deps(plugin_name: str, deps: tuple[str, ...], console) -> tuple[bool, Optional[str]]:
"""The y/N gate for Python deps entering the shared environment — install,
reinstall AND an update that declares new ones all pass through here.
Returns (consented, reason); never raises."""
console.print(
f"\n[bold]{plugin_name}[/bold] declares Python dependencies:"
)
if deps:
for dep in deps:
console.print(f" - {dep}")
else:
console.print(" - (declared in its pyproject.toml)")
# A decline or non-interactive invocation leaves the new plugin disabled.
if not (sys.stdin.isatty() and sys.stdout.isatty()):
console.print(
"[dim]Non-interactive install — skipping dependency install. "
"Run `hermes plugins enable` when ready to prepare them.[/dim]\n"
)
return False, "dependency install skipped (non-interactive)"
try:
answer = input(
" Prepare these with Hermes through PM now? [y/N]: "
).strip().lower()
except (EOFError, KeyboardInterrupt):
answer = ""
if answer not in {"y", "yes"}:
console.print(
"[dim]Skipped — run `hermes plugins enable` when ready "
"to prepare them.[/dim]\n"
)
return False, "dependency install declined"
# Consent only — the python-deps resolution itself runs inside the ONE
# admission transaction at enable-commit time (C13): env + config move
# together or not at all.
return True, None
def _python_dependency_summary(target: Path, warnings: list[str]) -> list[str]:
"""Read dashboard dependency details; publication and admission own installation."""
from pm.plugin_declarations import read_python_declaration
try:
return list(read_python_declaration(target).install_requirements)
except Exception as exc:
warnings.append(f"Could not read Python dependencies: {exc}")
return []
def _prompt_plugin_env_vars(manifest: dict, console) -> None:
"""Prompt for unset ``requires_env`` variables and save the answers to the user's ``.env``."""
missing = _pc()._missing_env_specs(manifest)
if not missing:
return
from hermes_cli.config import save_env_value
from hermes_constants import display_hermes_home
plugin_name = manifest.get("name", "this plugin")
console.print(f"\n[bold]{plugin_name}[/bold] requires the following environment variables:\n")
for spec in missing:
name = spec["name"]
desc = spec.get("description", "")
url = spec.get("url", "")
console.print(f" {name}" + (f" — {desc}" if desc else ""))
if url:
console.print(f" [dim]Get yours at: {url}[/dim]")
try:
value = (_pc().masked_secret_prompt if spec.get("secret", False) else line_input)(f" {name}: ").strip()
except (EOFError, KeyboardInterrupt):
console.print(f"\n[dim] Skipped (you can set these later in {display_hermes_home()}/.env)[/dim]")
return
if value:
save_env_value(name, value)
os.environ[name] = value
console.print(f" [green]✓[/green] Saved to {display_hermes_home()}/.env")
else:
console.print(f" [dim] Skipped (set {name} in {display_hermes_home()}/.env later)[/dim]")
console.print()
def _display_after_install(plugin_dir: Path, identifier: str) -> None:
"""Show after-install.md if it exists, otherwise a default message."""
from rich.markdown import Markdown
from rich.panel import Panel
console = _pc()._console()
after_install = plugin_dir / "after-install.md"
if after_install.exists():
body, title = Markdown(after_install.read_text(encoding="utf-8-sig")), None
else:
body = f"[green bold]Plugin installed:[/] {identifier}\n[dim]Location:[/] {plugin_dir}"
title = "✓ Installed"
console.print()
console.print(Panel(body, border_style="green", title=title, expand=False))
console.print()
def _check_manifest_version(manifest: dict, plugin_name: str) -> None:
"""Reject manifests declaring a newer ``manifest_version`` than this installer supports."""
from pm.plugin_declarations import manifest_version_error
reason = manifest_version_error(manifest, plugin_name)
if reason:
from hermes_cli.config import recommended_update_command
raise _pc().PluginOperationError(f"{reason} Run {recommended_update_command()} to update Hermes.")
def _read_manifest_for_install(plugin_dir: Path) -> dict:
"""A candidate's unreadable or malformed manifest must stop publication."""
native = _pc()._native_manifest_file(plugin_dir)
if native is not None:
try:
manifest = _pc()._load_yaml_manifest(native)
except Exception as exc:
raise _pc().PluginOperationError(f"Could not read plugin manifest {native}: {exc}") from exc
if not isinstance(manifest, dict):
raise _pc().PluginOperationError(f"Plugin manifest must be a mapping: {native}")
return manifest
if not _pc()._has_portable_manifest(plugin_dir):
return {}
try:
from hermes_cli.agent_plugins import read_agent_plugin_manifest
manifest, diagnostics = read_agent_plugin_manifest(plugin_dir)
except Exception as exc:
raise _pc().PluginOperationError(f"Portable plugin manifest validation failed: {exc}") from exc
for diagnostic in diagnostics:
logger.warning("Agent Plugin install: %s", diagnostic.message)
return manifest
def _probe_readable(path: Path) -> None:
"""Raise ``OSError`` unless *path* can actually be listed (dir) or opened for reading (file)."""
if path.is_dir():
os.listdir(path)
else:
with open(path, "rb"):
pass
def _ensure_tree_readable(root: Path, plugins_dir: Path) -> None:
"""Refuse to ship a tree Hermes cannot read back. A clone can land unreadable (Windows ACL
inheritance -> WinError 5, a mode-000 file) and discovery would then skip the plugin forever
(#111804); repair ``u+rX`` where the OS supports it, otherwise fail before anything moves."""
paths = [root]
for dirpath, dirnames, filenames in os.walk(root):
paths.extend(Path(dirpath) / name for name in (*dirnames, *filenames))
for path in paths:
try:
_probe_readable(path)
continue
except OSError:
if os.name != "nt": # chmod only toggles the read-only bit on Windows; ACLs need icacls
try:
os.chmod(path, os.stat(path).st_mode | (0o500 if path.is_dir() else 0o400))
except OSError:
pass
try:
_probe_readable(path)
except OSError as exc:
fix = (f'icacls "{plugins_dir}" /grant:r "%USERNAME%":(OI)(CI)F /T' if os.name == "nt"
else f"chmod -R u+rX {plugins_dir}")
raise _pc().PluginOperationError(
f"Installed file {path.relative_to(root)} is not readable ({exc.strerror or exc}); "
f"nothing was installed. Fix permissions on {plugins_dir} (e.g. `{fix}`) and retry."
) from exc
def _refuse_unavailable_portable_plugin(plugin_name: str, tree: Path) -> None:
if not (tree / "plugin.json").is_file():
return
from hermes_cli.agent_plugins import load_agent_plugin
from hermes_platform.resolver.availability import availability
try:
package = load_agent_plugin(tree, tree.parent / ".hermes-install-data")
except ValueError as exc:
raise _pc().PluginOperationError(f"Plugin '{plugin_name}' is unavailable: {exc}.") from exc
for server_name, server_decl in package.server_declarations.items():
result = availability(server_decl.declaration)
if result.offerable:
continue
found = f", found version {result.version}" if result.version else ""
raise _pc().PluginOperationError(
f"Plugin '{plugin_name}' server '{server_name}' is unavailable: {result.state}{found}."
)
def _known_issue_warnings(entry) -> list[str]:
"""Catalog ``known_issues`` are informational (#124058): surface them as warnings, never a gate.
The guard for the traps they describe belongs at the mode-selection seam (#122341 / #123771).
"""
return [f"Known issue: {issue}" for issue in entry.known_issues]
def _install_plugin_core(
identifier: str,
*,
force: bool,
ref: Optional[str] = None,
scan_decision_cb=None,
reviewed_pin: Optional[str] = None,
python_deps: bool = True,
catalog: Optional[dict] = None,
allow_removed: bool = False,
before_swap=None,
) -> tuple[Path, dict, str]:
"""Clone a Git plugin and atomically record its source and exact revision.
*reviewed_pin* is the curated-catalog sha for this install; the scan trusts the tree
only when the checked-out revision is exactly that sha (an annotated-tag pin is peeled to
its commit first — HEAD can only ever be the commit). *python_deps* False refuses active
replacements; it never bypasses PM dependency admission. *catalog*
(``{"name", "repo", "tier", "pin"}``) is recorded on the install-metadata record with the
checked-out sha — provenance lives OUTSIDE the plugin tree, so a repo cannot forge it;
its ``pin`` is kept only when the checkout satisfies it (a ``--ref`` install is off-pin).
*allow_removed* records that the user knowingly bypassed the kill list.
*before_swap(manifest, tree)* runs on the manifest-checked clone BEFORE the security scan, so
the single scan and portable-package check admit the merged tree (file-count/size limits
included). It may return the relative paths it merged in, which a scan block then attributes,
and may raise :class:`PluginOperationError` to abort (re-pin consent)."""
requested_revision = _pc()._normalize_exact_revision(ref) if ref is not None else None
try:
git_url, subdir = _pc()._resolve_git_url(identifier)
except ValueError as e:
raise _pc().PluginOperationError(str(e)) from e
plugins_dir = _pc()._plugins_dir()
source = _pc()._canonical_source(git_url, subdir)
old_metadata = _pc()._read_install_metadata()
# Reinstalling the same pinned source retains its pin, even if its plugin
# directory was manually removed. Moving a pin requires an explicit --ref.
if requested_revision is None:
pins = [e for e in old_metadata.values() if e.get("source") == source and e.get("pinned") is True]
if len(pins) == 1 and isinstance(pins[0].get("revision"), str):
requested_revision = _pc()._normalize_exact_revision(pins[0]["revision"])
with tempfile.TemporaryDirectory(prefix=".install-", dir=plugins_dir) as tmp:
tmp_clone = Path(tmp) / "plugin"
installed_revision = _pc()._clone_plugin_repo(tmp_clone, git_url, requested_revision, subdir)
git_exe = _pc()._resolve_git_executable()
at_reviewed_pin = bool(reviewed_pin) and installed_revision == (
_pc()._git_resolve_commit(tmp_clone, git_exe, reviewed_pin) if git_exe and reviewed_pin else reviewed_pin)
tmp_target = _pc()._resolve_subdir_within(tmp_clone, subdir) if subdir else tmp_clone
_ensure_tree_readable(tmp_target, plugins_dir)
manifest = _read_manifest_for_install(tmp_target)
plugin_name = manifest.get("name") or (
subdir.rstrip("/").rsplit("/", 1)[-1] if subdir else _pc()._repo_name_from_url(git_url))
try:
target = _pc()._sanitize_plugin_name(plugin_name, plugins_dir)
except ValueError as e:
raise _pc().PluginOperationError(str(e)) from e
_check_manifest_version(manifest, plugin_name)
# A callback may merge user-owned state into the candidate tree; run it first so one scan
# admits the final bytes.
merged = before_swap(manifest, tmp_target) if before_swap is not None else None
# Scan BEFORE anything is moved into place; raises PluginScanBlocked when blocked.
_pc()._scan_merged_tree(tmp_target, identifier, merged, force=force, scan_decision_cb=scan_decision_cb,
reviewed_pin=at_reviewed_pin)
if not python_deps:
from pm.workspace import enabled_plugin_dirs
if target.resolve() in enabled_plugin_dirs(installing=target):
raise _pc().PluginOperationError(
"--no-deps cannot replace an active plugin. Retry without --no-deps; "
"PM must prepare its dependencies before publication.")
_refuse_unavailable_portable_plugin(plugin_name, tmp_target)
if target.exists() and not force:
raise _pc().PluginOperationError(
f"Plugin '{plugin_name}' already exists. Use force reinstall "
f"or run `hermes plugins update {plugin_name}`.")
prior = old_metadata.get(plugin_name)
if target.exists() and requested_revision is None and isinstance(prior, dict) and prior.get("pinned") is True:
raise _pc().PluginOperationError(
f"Plugin '{plugin_name}' is pinned. Reinstall it with an explicit "
"--ref <40-character commit SHA> to change its source or revision.")
record: dict[str, object] = {
"pinned": requested_revision is not None,
"revision": installed_revision,
"source": source,
}
# Saved update_url tag (settled: claims vs provenance): the
# manifest's update_url is COPIED into the row at install. Check
# time compares manifest vs tag; a mismatch is needs-fixing and
# only `hermes plugins trust-update-url` moves the tag.
if manifest.get("update_url"):
from hermes_cli.plugins_updates import https_update_url
try:
record["update_url"] = https_update_url(manifest["update_url"])
except ValueError as exc:
raise _pc().PluginOperationError(f"Plugin '{plugin_name}' {exc}") from exc
if catalog:
# ``sha`` = the commit checked out; ``pin`` = the reviewed catalog sha it satisfies (the
# annotated-tag object for a tag pin), empty when installed off-pin via ``--ref``.
record["catalog"] = {
**catalog,
"sha": installed_revision,
"pin": reviewed_pin if at_reviewed_pin else "",
}
from hermes_cli.plugins_cmd_catalog import write_catalog_sidecar_record
write_catalog_sidecar_record(tmp_target, catalog, installed_revision)
if allow_removed:
record["allow_removed"] = True
new_metadata = {**old_metadata, plugin_name: record}
from hermes_cli.plugins_transaction import publish_plugin
try:
publish_plugin(tmp_target, target, old_metadata, new_metadata, require_consent=True)
except Exception as exc:
raise _pc().PluginOperationError(f"Plugin '{plugin_name}' was not published: {exc}") from exc
if not _pc()._looks_like_plugin_dir(target):
logger.warning("%s has no plugin.yaml / __init__.py; may not be a valid plugin", plugin_name)
_pc()._copy_example_files(target, _pc()._console())
installed_manifest = _pc()._read_manifest(target)
return target, installed_manifest, installed_manifest.get("name") or target.name
def recorded_install(install: Callable[[], tuple], *, catalog_name: Optional[str], identifier: str) -> tuple:
"""Run one plugin install attempt (a core ``(target, manifest, installed_name)`` call) and record
it as a shared-metrics extension install: failed when it raises, success unless it replaced an
already-installed plugin (a reinstall is not an install)."""
from hermes_cli.observability.shared_metrics_events import record_extension_install
source = "catalog" if catalog_name else ("local" if identifier.startswith("file://") else "url")
before = set(_pc()._read_install_metadata())
try:
result = install()
except Exception:
record_extension_install(kind="plugin", source=source, name=catalog_name, outcome="failed")
raise
if result[2] not in before:
record_extension_install(kind="plugin", source=source, name=catalog_name, outcome="success")
return result
def cmd_install(
identifier: str,
force: bool = False,
enable: Optional[bool] = None,
ref: Optional[str] = None,
allow_removed: bool = False,
no_deps: bool = False,
) -> None:
"""Install a plugin from the curated catalog (bare name), a Git URL, or owner/repo shorthand.
A catalog hit installs the reviewed pinned SHA and records catalog membership in the shared install
metadata. An explicit different ``--ref`` is a custom pin. URLs/shorthand are custom sources. Every
install is checked against the catalog kill list unless *allow_removed*.
*enable* None prompts "Enable now? [y/N]"; True/False skip the prompt.
"""
from hermes_cli import plugins_cmd_catalog as catalog
console = _pc()._console()
entry = None
if catalog.looks_like_catalog_name(identifier):
entry = catalog.resolve_catalog_name(identifier, console)
identifier = entry.install_identifier
console.print(f"[bold]{entry.name}[/bold] [cyan]\\[{entry.tier}][/cyan] [dim]pinned @ {entry.sha[:8]}[/dim]")
console.print(catalog.entry_capability_summary(entry))
else:
console.print("[yellow]Warning:[/yellow] custom (unreviewed) source — not from the Hermes catalog.")
if allow_removed:
console.print(
"[bold red]WARNING:[/bold red] [red]--allow-removed set — skipping the catalog kill-list check. "
"This plugin may have been removed for security reasons.[/red]")
try:
git_url, _subdir = _pc()._resolve_git_url(identifier)
if not allow_removed:
catalog.raise_if_removed(identifier, git_url, *((entry.name,) if entry else ()))
except (ValueError, _pc().PluginOperationError) as e:
_pc()._fail(console, f"[red]Error:[/red] {e}")
if git_url.startswith(("http://", "file://")):
console.print(
"[yellow]Warning:[/yellow] Using insecure/local URL scheme. "
"Consider using https:// or git@ for production installs.")
console.print(f"[dim]Cloning {git_url}{f' (subdir: {_subdir})' if _subdir else ''}...[/dim]")
def _interactive_scan_decision(scan_result) -> bool:
"""Prompt the user to accept a caution-verdict plugin."""
from tools.plugin_guard import format_scan_report
console.print()
console.print("[yellow]⚠ Security scan flagged this plugin:[/yellow]")
console.print(format_scan_report(scan_result))
return _pc()._is_tty() and _pc()._ask_yes(" Install anyway? Only continue if you trust the source. [y/N]: ")
def _install() -> tuple:
if entry is not None:
return catalog.install_catalog_entry(
entry, force=force, ref=ref, allow_removed=allow_removed, scan_decision_cb=_interactive_scan_decision,
python_deps=not no_deps)
return _pc()._install_plugin_core(
identifier, force=force, ref=ref, scan_decision_cb=_interactive_scan_decision,
python_deps=not no_deps, allow_removed=allow_removed)
try:
target, installed_manifest, installed_name = recorded_install(
_install, catalog_name=entry.name if entry is not None else None, identifier=identifier)
except _pc().PluginOperationError as e:
_pc()._fail(console, f"[red]{'Blocked' if isinstance(e, _pc().PluginScanBlocked) else 'Error'}:[/red] {e}")
if not _pc()._looks_like_plugin_dir(target):
console.print(
f"[yellow]Warning:[/yellow] {installed_name} doesn't contain plugin.yaml, "
f"plugin.json, or __init__.py. It may not be a valid Hermes plugin.")
_prompt_plugin_env_vars(installed_manifest, console)
from pm.workspace import enabled_plugin_dirs
# Active replacements settled consent against the staged tree before PM
# prepared or published it. Do not present a second, ineffective veto.
already_active = target.resolve() in enabled_plugin_dirs()
should_enable = False if no_deps else enable
if no_deps:
console.print("[dim]--no-deps: skipping dependency consent; the plugin stays disabled.[/dim]")
if should_enable is None and not already_active:
should_enable = _pc()._is_tty() and _pc()._ask_yes(f" Enable '{installed_name}' now? [y/N]: ")
deps_ok, deps_reason = (True, None)
if should_enable and not already_active:
deps_ok, deps_reason = _install_plugin_python_deps(installed_manifest, target, console)
_pc()._display_after_install(target, identifier)
# ONE admission transaction for the enable (C13): resolve the candidate
# union (enabled members + this target) and commit the config in the
# same step — env and config change together or not at all. No
# duplicate sync here: nothing was resolved before this point.
if should_enable and not deps_ok:
# Consent declined/skipped: nothing was installed or changed, so
# enabling is refused without touching config or environment.
console.print(
f"[red]✗[/red] Cannot enable [bold]{installed_name}[/bold]: "
f"{deps_reason}"
)
console.print(
"[dim]The plugin stays installed but disabled; re-enable "
"after resolving the conflict.[/dim]"
)
should_enable = False
if already_active:
console.print("[dim]Replacement installed; plugin selection was not changed.[/dim]")
elif should_enable:
from hermes_cli.plugins_admission import AdmissionRefused
try:
_pc()._set_plugin_enabled(installed_name, enable=True, console=console)
except AdmissionRefused:
console.print(
"[dim]The plugin stays installed but disabled; re-enable "
"after resolving the conflict.[/dim]"
)
else:
console.print(
f"[green]✓[/green] Plugin [bold]{installed_name}[/bold] enabled.",
)
else:
console.print(
f"[dim]Plugin installed but not enabled. "
f"Run `hermes plugins enable {installed_name}` to activate.[/dim]")
# Non-interactive installs and declines leave declared capabilities ungranted (fail closed).
declared_caps = _pc()._declared_capabilities_from_manifest(installed_manifest, installed_name)
if declared_caps:
_pc()._run_capability_consent(console, installed_name, declared_caps, context="install")
if enable:
# Loads it into the running gateway now (handlers live) or says what needs a restart (#87770).
from hermes_cli.plugins_activation import activate_plugin_now, activation_hint
console.print(f"[dim]{activation_hint(activate_plugin_now(installed_name, in_process=False))}[/dim]")
console.print()
def dashboard_install_plugin(
identifier: str, *, force: bool, enable: bool, catalog_name: Optional[str] = None,
ref: Optional[str] = None, on_step: Optional[Callable[[str], None]] = None,
) -> dict[str, Any]:
"""Non-interactive install for the dashboard/TUI. *catalog_name* installs a curated entry at its
pinned SHA (identifier may be empty); *ref* pins a custom source to one full commit SHA (same
contract as ``--ref``); every path enforces the kill list (no GUI bypass). *on_step* hears a short
user-facing line as each slow phase starts (the catalog card draws it under its bar)."""
from hermes_cli import plugins_cmd_catalog as catalog
step = on_step or (lambda _text: None)
warnings: list[str] = []
entry = None
if catalog_name:
entry = catalog.get_live_catalog_entry(catalog_name)
if entry is None:
return {"ok": False, "error": f"'{catalog_name}' is not in the Hermes plugin catalog."}
warnings.extend(_known_issue_warnings(entry))
identifier = entry.install_identifier
else:
warnings.append("Custom (unreviewed) source — not from the Hermes catalog.")
try:
git_url = _pc()._resolve_git_url(identifier)[0]
if git_url.startswith(("http://", "file://")):
warnings.append("Insecure URL scheme; prefer https:// or git@ for production installs.")
catalog.raise_if_removed(identifier, git_url, *((entry.name,) if entry else ()))
except ValueError:
pass
except _pc().PluginOperationError as exc:
return {"ok": False, "error": str(exc)}
def _install() -> tuple:
if entry is not None:
return catalog.install_catalog_entry(entry, force=force, allow_removed=False)
return _pc()._install_plugin_core(identifier, force=force, ref=(ref or "").strip() or None)
step("Downloading…")
try:
target, installed_manifest, installed_name = recorded_install(
_install, catalog_name=entry.name if entry is not None else None, identifier=identifier)
except _pc().PluginScanBlocked as exc:
fields = ("pattern_id", "severity", "category", "file", "line", "description")
return {
"ok": False, "error": str(exc), "scan_blocked": True,
"scan_verdict": getattr(exc.scan_result, "verdict", "dangerous"),
"scan_findings": [
{k: getattr(f, k) for k in fields}
for f in (exc.scan_result.findings if exc.scan_result is not None else ())
],
}
except _pc().PluginOperationError as exc:
return {"ok": False, "error": str(exc)}
deps = _pc()._python_dependency_summary(target, warnings)
if enable:
from hermes_cli.plugins_admission import AdmissionRefused
if deps:
# Enabling admits the plugin, and admission resolves its Python dependencies.
step("Installing Python packages…")
try:
_pc()._set_plugin_enabled(installed_name, enable=True)
except AdmissionRefused as exc:
return {
"ok": False, "error": f"enable refused: {exc}",
"plugin_name": installed_name, "enabled": False,
}
ap = target / "after-install.md"
# Deps first, then load: the plugin activates in this process (TUI/Desktop server subscribers see it)
# and in the running gateway; ``activation`` says what is live now vs next session (#87770).
from hermes_cli.plugins_activation import activate_plugin_now
if enable:
step("Loading its tools…")
activated = activate_plugin_now(installed_name) if enable else {
"gateway_reloaded": False, "activation": None, "restart_required": False}
return {
"ok": True, "plugin_name": installed_name, "warnings": warnings,
"python_dependencies": deps,
"missing_env": [s["name"] for s in _pc()._missing_env_specs(installed_manifest)],
"after_install_path": str(ap) if ap.exists() else None, "enabled": enable, **activated,
"known_issues": list(entry.known_issues) if entry else [],
}