The Unified Agent detects Go dependencies via two different resolvers:
A specific resolver for detecting Go Modules dependencies.
A generic resolver for detecting dependencies defined by the other Go package managers: Dep, Godep, Vndr, Gogradle, Govendor, Gopm, Glide.
The two Go resolvers expose different parameter sets to control them. The configuration parameters for controlling the Go Modules resolver can be found here. The configuration parameters for controlling the generic Go resolver can be found here.
Go Modules dependencies are detected using the designated resolver, which is based on the Modules manifest file go.mod and requires the Go binary.
The Go Modules resolver is enabled by default, using the following setting:
Godep dependencies are detected using the generic Go resolver, which is based on the Gopkg.lock file.
Using the go.collectDependenciesAtRuntime parameter
Setting the go.collectDependenciesAtRuntime parameter to control the generic Go resolver will have a different effect, depending on the Go package manager in use.
Godep, Vndr, and Dep
When the following conditions are met:
The go.collectDependenciesAtRuntime is set to true
The dependency file is available
The vendor folder is missing
The Unified Agent will perform the following:
For Vndr and Dep, the existing dependency file will be renamed in the following format: <dependency_file>-<YYYY.MM.DD>T<HHmmss>+<UTC offset>.<extension> and the pre-step command will be executed.
For Godep, the existing Godeps folder name will be renamed in the following format: Godeps-<YYYY.MM.DD>T<HHmmss>+<UTC offset> and the pre-step command will be executed.
For all three noted package managers, the vendor folder containing all the relevant dependencies/files will be created. It will also generate a new dependency file.
When setting the go.collectDependenciesAtRuntime to true, if the govendor fetch command was executed prior to the scan on the relevant project, the dependencies will be downloaded and the scan results will include a full hierarchy tree. Otherwise, the scan will result in a flat dependencies list.
The go.collectDependenciesAtRuntime parameter is irrelevant for the Glide package manager.
The Unified Agent provides support for a hierarchy tree for the following packages: Glide, Gopm, Godep, Dep, Govendor and Vndr. For Gogradle, the Unified Agent will show both direct and transitive dependencies in a flat structure.
In order to support the retrieval of a project's full hierarchy tree, one of the following requirements must be met:
The dependency file and vendor folder are available in the project.
The go.collectDependenciesAtRuntime parameter is set to true and the relevant dependency manager is installed.