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👍 show constraint error warning #404

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merged 3 commits into from
Aug 7, 2024
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Milly
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@Milly Milly commented Aug 7, 2024

Fixes #401, closes #403

Summary by CodeRabbit

  • New Features

    • Enhanced error handling and logging in the Denops server, providing users with actionable feedback for specific errors.
    • New test cases added to ensure the server behaves correctly when encountering constraint errors.
  • Bug Fixes

    • Added checks to prevent the server from restarting after a stop command under error conditions, improving reliability.
  • Chores

    • Introduced new import statements in test files to leverage asynchronous utilities, enhancing test capabilities.

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coderabbitai bot commented Aug 7, 2024

Walkthrough

The recent changes significantly enhance error handling and logging within the Denops server process. Key improvements include a mechanism for managing error logs, detecting specific connection issues, and providing actionable user guidance for resolving module cache problems. Additionally, the test suite has been fortified to ensure the server behaves correctly during error scenarios, thereby improving overall reliability.

Changes

Files Change Summary
autoload/denops/_internal/server/proc.vim Enhanced error handling and logging; implemented management of error logs and user feedback on connection issues.
tests/denops/runtime/functions/server_test.ts Added tests verifying server behavior on constraint errors, including status checks and warning messages.
tests/denops/testdata/no_check/cli_error_on_issue_401.ts Introduced async import to enhance CLI error testing capabilities.
tests/denops/testdata/no_check/cli_constraint_error_on_issue_401.ts Added import for async utilities to improve constraint error handling in tests.

Sequence Diagram(s)

sequenceDiagram
    participant User
    participant Denops Server
    participant Error Logger

    User->>Denops Server: Start Server
    Denops Server->>Error Logger: Log server start
    Denops Server-->>User: Server started
    Denops Server->>Error Logger: On Error
    Error Logger-->>Denops Server: Append error to logs
    Error Logger-->>User: Display warning message
    User->>Denops Server: Attempt to restart
    Denops Server-->>User: Server stopped
Loading

Assessment against linked issues

Objective Addressed Explanation
Detect connection issues (#401)
Provide user guidance on resolving errors (#403)
Ensure stable server behavior on constraint errors (#403)

Poem

In the server's den, where errors tread,
A rabbit hops forth, no worries, no dread.
With logs in hand and warnings so bright,
We'll fix those issues—oh, what a delight!
So let's cheer for changes, both bold and new,
For a smoother journey, just me and you! 🐇✨


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Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between f5bcc4f and 9e1ea2a.

Files selected for processing (4)
  • autoload/denops/_internal/server/proc.vim (3 hunks)
  • deno.jsonc (1 hunks)
  • tests/denops/runtime/functions/server_test.ts (3 hunks)
  • tests/denops/testdata/no_check/cli_error_on_issue_401.ts (1 hunks)
Files skipped from review due to trivial changes (1)
  • deno.jsonc
Additional comments not posted (11)
tests/denops/testdata/no_check/cli_error_on_issue_401.ts (1)

1-1: Verify the module version.

The import statement uses a specific version 1.0.9999 which might be a placeholder or incorrect version. Ensure that this version is intended.

autoload/denops/_internal/server/proc.vim (5)

2-2: LGTM!

The addition of s:LAST_ERROR_LINES to manage the maximum number of error lines retained is appropriate.


7-7: LGTM!

The initialization of s:last_error_logs as an empty array is necessary for managing error logs.

Also applies to: 66-66


96-98: LGTM!

The changes in s:on_stderr to append error data to s:last_error_logs and manage its size are appropriate.


105-119: LGTM!

The changes in s:on_exit to check for specific error messages and provide user guidance are well-implemented and enhance user feedback.


Line range hint 2-119: Overall changes approved.

The enhancements to error handling, logging, and user guidance improve the robustness and user experience of the server process.

tests/denops/runtime/functions/server_test.ts (5)

6-6: LGTM!

The addition of assertNotMatch to the import statements is appropriate for the new test cases.


8-8: LGTM!

The addition of assertStringIncludes to the import statements is appropriate for the new test cases.


495-544: LGTM!

The new test case for handling constraint errors ensures that the server behaves correctly under error conditions and provides appropriate warnings.


1332-1335: LGTM!

The addition of the resolve function to resolve test data script URLs is necessary for the new test case.


Line range hint 6-544: Overall changes approved.

The enhancements to the test suite improve the robustness of the tests and ensure that the server's behavior is as expected under error conditions.

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codecov bot commented Aug 7, 2024

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 95.52%. Comparing base (f5bcc4f) to head (541b27e).

Additional details and impacted files
@@           Coverage Diff           @@
##             main     #404   +/-   ##
=======================================
  Coverage   95.52%   95.52%           
=======================================
  Files          23       23           
  Lines        1384     1384           
  Branches      174      174           
=======================================
  Hits         1322     1322           
  Misses         59       59           
  Partials        3        3           

☔ View full report in Codecov by Sentry.
📢 Have feedback on the report? Share it here.

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Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 9e1ea2a and 3ac0ad3.

Files selected for processing (4)
  • autoload/denops/_internal/server/proc.vim (3 hunks)
  • deno.jsonc (1 hunks)
  • tests/denops/runtime/functions/server_test.ts (3 hunks)
  • tests/denops/testdata/no_check/cli_error_on_issue_401.ts (1 hunks)
Files skipped from review due to trivial changes (2)
  • deno.jsonc
  • tests/denops/testdata/no_check/cli_error_on_issue_401.ts
Files skipped from review as they are similar to previous changes (1)
  • autoload/denops/_internal/server/proc.vim
Additional comments not posted (2)
tests/denops/runtime/functions/server_test.ts (2)

1332-1335: LGTM!

The resolve function correctly resolves the test data script URL.


495-544: LGTM!

The test case "if the server is stopped with a constraint error" is well-structured and covers the necessary assertions to ensure the server behaves correctly when stopped due to a constraint error.

@Milly
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Milly commented Aug 7, 2024

Force pushed remove let g:denops#debug = 1, which was used to debug the test implementation but is no longer needed.

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Actionable comments posted: 0

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 3ac0ad3 and 7212a96.

Files selected for processing (4)
  • autoload/denops/_internal/server/proc.vim (3 hunks)
  • deno.jsonc (1 hunks)
  • tests/denops/runtime/functions/server_test.ts (3 hunks)
  • tests/denops/testdata/no_check/cli_error_on_issue_401.ts (1 hunks)
Files skipped from review due to trivial changes (2)
  • deno.jsonc
  • tests/denops/testdata/no_check/cli_error_on_issue_401.ts
Files skipped from review as they are similar to previous changes (2)
  • autoload/denops/_internal/server/proc.vim
  • tests/denops/runtime/functions/server_test.ts

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Actionable comments posted: 0

Outside diff range, codebase verification and nitpick comments (1)
tests/denops/testdata/no_check/cli_constraint_error_on_issue_401.ts (1)

1-1: The import statement is unnecessary.

The import statement for jsr:@std/async@1.0.0-constraint-error is not used anywhere in the test file tests/denops/testdata/no_check/cli_constraint_error_on_issue_401.ts. You can safely remove it.

Analysis chain

Verify the necessity of the import.

The import statement is for a specific version of a module with a constraint error. Ensure this is necessary for the test scenario.

Scripts executed

The following scripts were executed for the analysis:

Script:

#!/bin/bash
# Description: Verify the necessity of the import.

# Test: Search for the usage of the imported module. Expect: Usage in test cases.
rg --type ts -A 5 $'import * as _ from "jsr:@std/async@1.0.0-constraint-error"'

Length of output: 80


Script:

#!/bin/bash
# Description: Verify the necessity of the import by searching for its usage in the specific test file.

# Test: Search for the usage of the imported module within the test file.
rg 'jsr:@std/async@1.0.0-constraint-error' tests/denops/testdata/no_check/cli_constraint_error_on_issue_401.ts

Length of output: 170


Script:

#!/bin/bash
# Description: Verify the necessity of the import by searching for comments or documentation within the test file.

# Test: Search for comments or documentation within the test file.
rg '//' tests/denops/testdata/no_check/cli_constraint_error_on_issue_401.ts

Length of output: 75


Script:

#!/bin/bash
# Description: Verify the necessity of the import by searching for references to the module name or its exports within the test file.

# Test: Search for references to the module name or its exports within the test file.
rg '_' tests/denops/testdata/no_check/cli_constraint_error_on_issue_401.ts

Length of output: 134

Review details

Configuration used: CodeRabbit UI
Review profile: CHILL

Commits

Files that changed from the base of the PR and between 7212a96 and 541b27e.

Files selected for processing (3)
  • autoload/denops/_internal/server/proc.vim (1 hunks)
  • tests/denops/runtime/functions/server_test.ts (3 hunks)
  • tests/denops/testdata/no_check/cli_constraint_error_on_issue_401.ts (1 hunks)
Additional comments not posted (3)
autoload/denops/_internal/server/proc.vim (1)

99-113: Efficient error handling and user guidance.

The new code efficiently captures and handles specific error messages, providing clear guidance to the user.

tests/denops/runtime/functions/server_test.ts (2)

495-543: Comprehensive test for constraint error handling.

The new test case thoroughly checks the server's behavior when stopped due to a constraint error, ensuring correct error handling and user guidance.


1331-1334: Useful utility function for resolving URLs.

The new resolve function is a useful utility for resolving test data script URLs.

@Milly Milly requested a review from lambdalisue August 7, 2024 10:18
@Milly
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Milly commented Aug 7, 2024

@lambdalisue
I thought it would be better to set g:denops#disabled = 1 on error.
What do you think?

@lambdalisue
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I thought it would be better to set g:denops#disabled = 1 on error.

Nice. But with other PR.

@lambdalisue lambdalisue merged commit df8b125 into main Aug 7, 2024
9 checks passed
@lambdalisue lambdalisue deleted the constraint-error-warning branch August 7, 2024 10:50
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Could not connect servers on launch time with denops 7.x
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