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feat: decorator for duplicated commands detection - #1300

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André Jordan (andjordan) wants to merge 4 commits into
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feat: decorator for duplicated commands detection#1300
André Jordan (andjordan) wants to merge 4 commits into
mainfrom
feature/detect_duplicated_commands

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@andjordan

@andjordan André Jordan (andjordan) commented Aug 7, 2026

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Pull request overview

This PR adds a TerminalWithCommands decorator that detects conflicting (duplicate) terminal command names across registered TerminalCommands observers, aborting at runtime when a conflict is found. It also adds unit tests validating forwarding behavior and duplicate-detection behavior.

Changes:

  • Introduces services::TerminalWithCommandsDuplicateDetector to validate uniqueness of command long/short names across observers.
  • Implements deferred (event-dispatched) evaluation after observer registration to catch duplicates introduced during registration bursts.
  • Adds tests covering forwarding of observers to the delegate terminal and aborting on various conflict scenarios.

@andjordan
André Jordan (andjordan) requested a review from a team as a code owner August 7, 2026 15:32
Copilot AI review requested due to automatic review settings August 7, 2026 15:32
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Dependency Review

The following issues were found:
  • ✅ 0 vulnerable package(s)
  • ✅ 0 package(s) with incompatible licenses
  • ✅ 0 package(s) with invalid SPDX license definitions
  • ⚠️ 33 package(s) with unknown licenses.
See the Details below.

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Consider enabling retry-on-snapshot-warnings. See the documentation for more information and troubleshooting advice.

License Issues

infra/syntax/CMakeLists.txt

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zeux/pugixmlef856bf975f4b1909af1b40ed3d7e28af9263d95NullUnknown License
zeux/pugixmlef856bf975f4b1909af1b40ed3d7e28af9263d95NullUnknown License

external/crypto/mbedtls/CMakeLists.txt

PackageVersionLicenseIssue Type
mbed-tls/mbedtls107ea89daaefb9867ea9121002fbbdf926780e98NullUnknown License
mbed-tls/mbedtls107ea89daaefb9867ea9121002fbbdf926780e98NullUnknown License
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external/crypto/micro-ecc/CMakeLists.txt

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kmackay/micro-ecc24c60e243580c7868f4334a1ba3123481fe1aa48NullUnknown License
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osal/freertos/CMakeLists.txt

PackageVersionLicenseIssue Type
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freertos/freertos-kerneldef7d2df2b0506d3d249334974f51e427c17a41cNullUnknown License
freertos/freertos-kerneldef7d2df2b0506d3d249334974f51e427c17a41cNullUnknown License

external/crypto/tiny-aes128/CMakeLists.txt

PackageVersionLicenseIssue Type
kokke/tiny-aes-c7e42e693288bdf22d8e677da94248115168211b9NullUnknown License
kokke/tiny-aes-c7e42e693288bdf22d8e677da94248115168211b9NullUnknown License
kokke/tiny-aes-c7e42e693288bdf22d8e677da94248115168211b9NullUnknown License

cmake/emil_test_helpers.cmake

PackageVersionLicenseIssue Type
google/googletestv1.14.0NullUnknown License
google/googletestv1.14.0NullUnknown License
google/googletestv1.14.0NullUnknown License

osal/threadx/CMakeLists.txt

PackageVersionLicenseIssue Type
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eclipse-threadx/threadx06dabb0ad0403f59889ce85eeb3d48dbd9d3759bNullUnknown License
eclipse-threadx/threadx06dabb0ad0403f59889ce85eeb3d48dbd9d3759bNullUnknown License

external/segger_rtt/CMakeLists.txt

PackageVersionLicenseIssue Type
seggermicro/rttff57c3d516ea59b0a2d4d5cafb33a48572b09c0bNullUnknown License
seggermicro/rttff57c3d516ea59b0a2d4d5cafb33a48572b09c0bNullUnknown License
seggermicro/rttff57c3d516ea59b0a2d4d5cafb33a48572b09c0bNullUnknown License

lwip/lwip/CMakeLists.txt

PackageVersionLicenseIssue Type
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lwip-tcpip/lwip77dcd25a72509eb83f72b033d219b1d40cd8eb95NullUnknown License
lwip-tcpip/lwip77dcd25a72509eb83f72b033d219b1d40cd8eb95NullUnknown License

external/protobuf/CMakeLists.txt

PackageVersionLicenseIssue Type
protocolbuffers/protobufedaa823d8b36a8656d7b2b9241b7d0bfe50af878NullUnknown License
protocolbuffers/protobufedaa823d8b36a8656d7b2b9241b7d0bfe50af878NullUnknown License
protocolbuffers/protobufedaa823d8b36a8656d7b2b9241b7d0bfe50af878NullUnknown License

external/args/CMakeLists.txt

PackageVersionLicenseIssue Type
taywee/args114200a9ad5fe06c8dea76e15d92325695cf3e34NullUnknown License
taywee/args114200a9ad5fe06c8dea76e15d92325695cf3e34NullUnknown License
taywee/args114200a9ad5fe06c8dea76e15d92325695cf3e34NullUnknown License

OpenSSF Scorecard

Scorecard details
PackageVersionScoreDetails
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unknown/kokke/tiny-aes-c 7e42e693288bdf22d8e677da94248115168211b9 UnknownUnknown
unknown/google/googletest v1.14.0 UnknownUnknown
unknown/eclipse-threadx/threadx 06dabb0ad0403f59889ce85eeb3d48dbd9d3759b UnknownUnknown
unknown/seggermicro/rtt ff57c3d516ea59b0a2d4d5cafb33a48572b09c0b UnknownUnknown
unknown/lwip-tcpip/lwip 77dcd25a72509eb83f72b033d219b1d40cd8eb95 UnknownUnknown
unknown/protocolbuffers/protobuf edaa823d8b36a8656d7b2b9241b7d0bfe50af878 UnknownUnknown
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unknown/kokke/tiny-aes-c 7e42e693288bdf22d8e677da94248115168211b9 UnknownUnknown
unknown/lwip-tcpip/lwip 77dcd25a72509eb83f72b033d219b1d40cd8eb95 UnknownUnknown
unknown/zeux/pugixml ef856bf975f4b1909af1b40ed3d7e28af9263d95 UnknownUnknown
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unknown/eclipse-threadx/threadx 06dabb0ad0403f59889ce85eeb3d48dbd9d3759b UnknownUnknown
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unknown/zeux/pugixml ef856bf975f4b1909af1b40ed3d7e28af9263d95 UnknownUnknown
unknown/freertos/freertos-kernel def7d2df2b0506d3d249334974f51e427c17a41c UnknownUnknown
unknown/google/googletest v1.14.0 UnknownUnknown
unknown/kmackay/micro-ecc 24c60e243580c7868f4334a1ba3123481fe1aa48 UnknownUnknown
unknown/kokke/tiny-aes-c 7e42e693288bdf22d8e677da94248115168211b9 UnknownUnknown
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Scanned Files

  • cmake/emil_test_helpers.cmake
  • external/args/CMakeLists.txt
  • external/crypto/mbedtls/CMakeLists.txt
  • external/crypto/micro-ecc/CMakeLists.txt
  • external/crypto/tiny-aes128/CMakeLists.txt
  • external/protobuf/CMakeLists.txt
  • external/segger_rtt/CMakeLists.txt
  • infra/syntax/CMakeLists.txt
  • lwip/lwip/CMakeLists.txt
  • osal/freertos/CMakeLists.txt
  • osal/threadx/CMakeLists.txt

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⚠️MegaLinter analysis: Success with warnings

Descriptor Linter Files Fixed Errors Warnings Elapsed time
✅ ACTION actionlint 11 0 0 0.28s
✅ ACTION zizmor 11 0 0 0 4.41s
✅ CPP clang-format 1098 8 0 0 9.24s
✅ DOCKERFILE hadolint 2 0 0 0.05s
✅ JSON jsonlint 7 0 0 0.35s
✅ JSON prettier 7 0 0 0 0.54s
⚠️ MARKDOWN markdownlint 8 0 5 0 1.21s
✅ MARKDOWN markdown-table-formatter 8 0 0 0 0.25s
⚠️ REPOSITORY betterleaks yes 1 5 1.35s
✅ REPOSITORY checkov yes no no 33.53s
✅ REPOSITORY git_diff yes no no 0.09s
✅ REPOSITORY grype yes no no 71.36s
✅ REPOSITORY ls-lint yes no no 0.01s
✅ REPOSITORY osv-scanner yes no no 0.65s
✅ REPOSITORY secretlint yes no no 16.27s
✅ REPOSITORY syft yes no no 1.9s
✅ REPOSITORY trivy yes no no 20.16s
✅ REPOSITORY trivy-sbom yes no no 0.28s
✅ REPOSITORY trufflehog yes no no 4.55s
⚠️ SPELL lychee 140 1 0 117.0s
⚠️ YAML prettier 21 1 1 0 0.62s
✅ YAML v8r 21 0 0 9.0s
✅ YAML yamllint 21 0 0 0.79s

Detailed Issues

⚠️ REPOSITORY / betterleaks - 1 error
warning: generic-api-key has detected secret for file external/crypto/tiny-aes128/TinyAes.c.
   ┌─ external/crypto/tiny-aes128/TinyAes.c:17:4
   │  
17 │     key:
   │ ╭────^
18 │ │     2b7e151628aed2a6abf7158809cf4f3c
   │ ╰────────────────────────────────────^

warning: generic-api-key has detected secret for file services/network/WebSocket.cpp.
   ┌─ services/network/WebSocket.cpp:81:50
   │
81 │         headers.push_back(services::HttpHeader("Sec-Websocket-Key", "AQIDBAUGBbgJCgsMDQ4PEC=="));
   │                                                  ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

warning: private-key has detected secret for file services/network/CertificatesMbedTls.cpp.
    ┌─ services/network/CertificatesMbedTls.cpp:125:21
    │  
125 │           stream << "HIDDEN_BY_MEGALINTER\r\n";
    │ ╰────────────────────────────────────────────────^

warning: private-key has detected secret for file services/network/test_doubles/Certificates.cpp.
   ┌─ services/network/test_doubles/Certificates.cpp:56:15
   │  
56 │               "HIDDEN_BY_MEGALINTER\r\n";
   │ ╰──────────────────────────────────────────^

warning: private-key has detected secret for file services/network/test_doubles/Certificates.cpp.
    ┌─ services/network/test_doubles/Certificates.cpp:108:15
    │  
108 │               "HIDDEN_BY_MEGALINTER\r\n";
    │ ╰──────────────────────────────────────────^

warning: 5 warnings emitted
⚠️ SPELL / lychee - 1 error
📝 Summary
---------------------
🔍 Total..........697
🔗 Unique.........661
✅ Successful.....691
⏳ Timeouts.........0
🔀 Redirected.....310
👻 Excluded.........5
❓ Unknown..........0
🚫 Errors...........1
⛔ Unsupported......1

Errors in external/protoc/CMakeLists.txt
[404] https://github.com/protocolbuffers/protobuf/releases/download/v$%7Bprotobuf_tag%7D/protoc-$%7Bprotobuf_version%7D-$%7Bos_postfix%7D.zip (at 18:13) | Rejected status code: 404 Not Found

Hint: Followed 310 redirects. You might want to consider replacing redirecting URLs with the resolved URLs. Use verbose mode (`-v`/`-vv`) to see redirection details.
Hint: You can configure accepted/rejected response codes with `-a` or `--accept`
⚠️ MARKDOWN / markdownlint - 5 errors
.github/instructions/microtest.instructions.md:7 error MD041/first-line-heading/first-line-h1 First line in a file should be a top-level heading [Context: "## Google Test Suite Coding Ru..."]
external/crypto/tiny-aes128/README.md:1 error MD041/first-line-heading/first-line-h1 First line in a file should be a top-level heading [Context: "### Tiny AES128 in C"]
external/crypto/tiny-aes128/README.md:29 error MD046/code-block-style Code block style [Expected: fenced; Actual: indented]
external/crypto/tiny-aes128/README.md:39 error MD046/code-block-style Code block style [Expected: fenced; Actual: indented]
external/crypto/tiny-aes128/README.md:49 error MD046/code-block-style Code block style [Expected: fenced; Actual: indented]
⚠️ YAML / prettier - 1 error
[error] Explicitly specified pattern "documents/modules/ROOT/examples/clangformat.yaml" is a symbolic link.
.clusterfuzzlite/project.yaml 46ms (unchanged)
.github/dependabot.yml 16ms (unchanged)
.github/workflows/ci.yml 64ms (unchanged)
.github/workflows/dependency-scanner.yml 12ms (unchanged)
.github/workflows/documentation.yml 10ms (unchanged)
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.github/workflows/security.yml 4ms (unchanged)
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.github/workflows/validate-pr.yml 14ms (unchanged)
.ls-lint.yml 2ms
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antora-playbook-branch.yml 2ms (unchanged)
antora-playbook-site.yml 3ms (unchanged)
documents/antora.yml 2ms (unchanged)
documents/supplemental-ui/ui.yml 1ms (unchanged)
mull.yml 1ms (unchanged)

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Pull request overview

This PR adds a TerminalWithCommands decorator that detects conflicting (duplicate) terminal command names across registered TerminalCommands observers, aborting at runtime when a conflict is found. It also adds unit tests validating forwarding behavior and duplicate-detection behavior.

Changes:

  • Introduces services::TerminalWithCommandsDuplicateDetector to validate uniqueness of command long/short names across observers.
  • Implements deferred (event-dispatched) evaluation after observer registration to catch duplicates introduced during registration bursts.
  • Adds tests covering forwarding of observers to the delegate terminal and aborting on various conflict scenarios.

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File Description
services/util/test/TestTerminal.cpp Adds a new test fixture and test cases for duplicate command detection, including death tests for conflicts.
services/util/Terminal.hpp Declares the new TerminalWithCommandsDuplicateDetector decorator type.
services/util/Terminal.cpp Implements duplicate detection logic and deferred evaluation scheduling on observer registration.

Comment thread services/util/test/TestTerminal.cpp
Copilot AI review requested due to automatic review settings August 7, 2026 15:41

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Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated no new comments.

Suppressed comments (1)

services/util/test/TestTerminal.cpp:518

  • The new death tests should be disabled under EMIL_MUTATION_TESTING, consistent with the rest of the test suite (death tests are slow and can crash the mutation test runner). Wrap this block in #ifndef EMIL_MUTATION_TESTING / #endif.
TEST_F(TerminalWithCommandsDuplicateDetectorTest, aborts_when_new_long_name_matches_existing_long_name)
{
    EXPECT_DEATH(RegisterConflictingObserversAndDispatch("alpha", "a", "alpha", "b"), "Duplicate terminal command 'alpha'.*existing command 'alpha'");
}

Copilot AI review requested due to automatic review settings August 7, 2026 16:07

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Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

Suppressed comments (1)

services/util/test/TestTerminal.cpp:496

  • Death tests should be guarded with #ifndef EMIL_MUTATION_TESTING to avoid running during mutation testing (per test guidelines).
#ifndef EMIL_MUTATION_TESTING
TEST_F(TerminalWithCommandsDuplicateDetectorTest, aborts_when_new_long_name_matches_existing_long_name)
{
    EXPECT_DEATH(RegisterConflictingObserversAndDispatch("alpha", "a", "alpha", "b"), "");

Comment on lines +50 to +58
if (!evaluationScheduled)
{
evaluationScheduled = true;
infra::EventDispatcher::Instance().Schedule([this]()
{
evaluationScheduled = false;
EvaluateDuplicateCommands();
});
}
Copilot AI review requested due to automatic review settings August 7, 2026 16:13

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Pull request overview

Copilot reviewed 3 out of 3 changed files in this pull request and generated no new comments.

Suppressed comments (2)

services/util/Terminal.cpp:69

  • EvaluateDuplicateCommands() skips comparisons when &existingObserver == &newObserver, which means duplicate command names within a single TerminalCommands implementation are never detected (only duplicates across observers are). This can still lead to ambiguous command resolution (ProcessCommand will pick the first match). Consider adding an intra-observer duplicate check before comparing against other observers.
                    delegate.NotifyObservers([&newObserver, &newCommand](TerminalCommands& existingObserver)
                        {
                            if (&existingObserver != &newObserver)
                                for (const auto& existingCommand : existingObserver.Commands())

services/util/Terminal.cpp:44

  • The duplicate evaluation is only triggered from RegisterObserver(). If the delegate already has TerminalCommands observers attached before this decorator is constructed, those existing registrations will never be evaluated (unless another observer is registered later). If the intent is to enforce uniqueness across all currently registered observers, consider performing an initial evaluation in the constructor.

This issue also appears on line 66 of the same file.

    TerminalWithCommandsDuplicateDetector::TerminalWithCommandsDuplicateDetector(TerminalWithCommands& delegate)
        : delegate(delegate)
    {}

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