feat: Export raw results into csv format

[deicon]

Description:
Adds a shortcut flag -csv to output CSV reports directly to stdout when using the -raw option for offline reporting.

Motivation:
The existing -raw reporting functionality allows generating reports from raw result files. However, outputting CSV reports required specifying the -report and -output flags, creating a file on disk. This change simplifies the process of generating and viewing CSV reports directly in the terminal, especially useful for quick analysis and scripting.

What was changed:

• Modified cmd/httprunner/main.go to add the -csv flag.
• When the -csv flag is present, it forces -report=csv and -detail=summary, and outputs to stdout
• Added a check to ensure -csv is used together with -raw, exiting with an error otherwise

Tests:

• Added a new test case TestOfflineCSVShortcutPrintsToStdout in cmd/httprunner/main_test.go to verify the new functionality. This test creates a temporary results file, executes the runner with the -raw and -csv flags, and asserts that the CSV output is printed to stdout and contains the expected data.

[Copilot]

Pull Request Overview

This PR adds a -csv shortcut flag to simplify generating CSV reports from raw result files by outputting directly to stdout instead of requiring file output configuration.

Key changes:

• Added -csv flag that automatically sets -report=csv and -detail=summary when used with -raw
• Modified output logic to print CSV to stdout when -csv is active
• Added validation to ensure -csv is only used with -raw

Reviewed Changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
cmd/httprunner/main.go	Implements the -csv flag, validation logic, and stdout output behavior
cmd/httprunner/main_test.go	Adds test coverage for the new -csv flag functionality

Comments suppressed due to low confidence (1)

cmd/httprunner/main.go:1

• The test calls main() which will execute os.Exit() on error paths, potentially terminating the test process. Consider refactoring main logic into a testable function that returns errors instead of calling os.Exit(), allowing better test isolation and error handling.

package main

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