Trivy unable to scan specific branch in GitHub repository

[viveksahu26]

Description

Description

I attempted to scan a specific branch of a GitHub repository using Trivy, but it resulted in an error.

```sh
$ trivy repository https://github.com/aquasecurity/trivy/tree/v0.51

2024-07-22T22:11:30+05:30	INFO	Vulnerability scanning is enabled
2024-07-22T22:11:30+05:30	INFO	Secret scanning is enabled
2024-07-22T22:11:30+05:30	INFO	If your scanning is slow, please try '--scanners vuln' to disable secret scanning
2024-07-22T22:11:30+05:30	INFO	Please see also https://aquasecurity.github.io/trivy/v0.53/docs/scanner/secret#recommendation for faster secret detection
2024-07-22T22:11:31+05:30	FATAL	Fatal error	repository scan error: scan error: unable to initialize a scanner: unable to initialize a repository scanner: 2 errors occurred:
	* no such path: stat https://github.com/aquasecurity/trivy/tree/v0.51: no such file or directory
	* repository clone error: git clone error: repository not found

Expected Behavior

Trivy should scan the specified branch v0.51 for vulnerabilities.

Target

Git Repository

Scanner

Vulnerability

[nikpivkin]

Hi @viveksahu26 !

You can scan a specific repository branch using the branch flag. See the documentation for more information.

trivy repository https://github.com/aquasecurity/trivy --branch v0.51 -d

[viveksahu26]

Thanks @nikpivkin for the response. Yeah, it works now !!