💝 Allow error handlers to access the Cobra' command object #4
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Actionable comments posted: 0
🧹 Outside diff range and nitpick comments (2)
app.go (2)
25-25: LGTM: ErrorHandler signature update enhances functionalityThe addition of the
cmd *cobra.Commandparameter to theErrorHandlertype signature is a good improvement. It allows error handlers to access the Cobra command object, providing more context for error handling. This change aligns well with the PR objective and enhances the flexibility of error handling in the application.Consider renaming the
cmdparameter tocommandfor improved readability:-type ErrorHandler func(err error, cmd *cobra.Command) bool +type ErrorHandler func(err error, command *cobra.Command) bool
46-46: LGTM with a suggestion for improvementThe update to pass
a.rootas the second argument toErrorHandleris consistent with the new type signature. This change allows the error handler to access the command context, which is a good improvement.For multi-command applications, consider passing the specific command that caused the error instead of always passing the root command. This would provide more precise context to the error handler. You might need to modify the
Executemethod of thecobra.Commandto track the current command. Here's a conceptual example of how this could be implemented:func (a *App) Execute(options ...Option) error { // ... existing code ... var currentCmd *cobra.Command a.root.PersistentPreRun = func(cmd *cobra.Command, args []string) { currentCmd = cmd } err := a.root.Execute() if err != nil { return &commandError{err, currentCmd} } return nil } type commandError struct { err error cmd *cobra.Command } func (ce *commandError) Error() string { return ce.err.Error() } // In ExecuteOrDie if a.ErrorHandler == nil || !a.ErrorHandler(err, ce.cmd) { a.defaultErrorHandler(err) }This approach would provide the specific command that caused the error to the error handler, rather than always passing the root command.
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📒 Files selected for processing (2)
- app.go (2 hunks)
- app_test.go (1 hunks)
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🔇 Additional comments (2)
app_test.go (1)
27-29: LGTM! Consider adding a test case utilizing the new command parameter.The change successfully implements the PR objective by allowing error handlers to access the Cobra command object. The use of
_for the unused parameter follows Go conventions.To improve test coverage, consider adding a new test case that utilizes the
*cobra.Commandparameter in the error handler. This would ensure that the new functionality is properly tested.Example:
commandline.WithErrorHandler(func(merr error, cmd *cobra.Command) bool { err = merr assert.Assert(t, cmd != nil, "Command should not be nil") assert.Equal(t, "example", cmd.Use) return false }),Let's verify if there are other usages of
WithErrorHandlerthat might need updating:✅ Verification successful
Verified! No additional usages of
WithErrorHandlerrequire changes.The update to
WithErrorHandlerinapp_test.gois isolated to this test file and does not affect other parts of the codebase. The test change aligns with the PR objective and maintains existing functionality.🏁 Scripts executed
The following scripts were executed for the analysis:
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#!/bin/bash # Search for other usages of WithErrorHandler rg --type go 'WithErrorHandler\(' -C 3Length of output: 547
app.go (1)
23-24: LGTM: Comment update is clear and consistentThe updated comment accurately reflects the changes made to the
ErrorHandlertype signature. It provides clear information about the new parameter (the Cobra command) and specifies that it's the command that threw the error. This addition enhances the documentation and helps users understand the context provided to the error handler.
Allow error handlers to access the Cobra' command object
Summary by CodeRabbit
New Features
Bug Fixes
Tests