package parser import ( "github.com/drone/drone/common" "github.com/drone/drone/parser/inject" "github.com/drone/drone/parser/matrix" "gopkg.in/yaml.v2" ) // Opts specifies parser options that will permit // or deny certain Yaml settings. type Opts struct { Volumes bool Network bool Privileged bool } var DefaultOpts = &Opts{ Volumes: false, Network: false, Privileged: false, } // Parse parses a build matrix and returns // a list of build configurations for each axis // using the default parsing options. func Parse(raw string) ([]*common.Config, error) { return ParseOpts(raw, DefaultOpts) } // ParseOpts parses a build matrix and returns // a list of build configurations for each axis // using the provided parsing options. func ParseOpts(raw string, opts *Opts) ([]*common.Config, error) { axis, err := matrix.Parse(raw) if err != nil { return nil, err } confs := []*common.Config{} // when no matrix values exist we should return // a single config value with an empty label. if len(axis) == 0 { conf, err := ParseSingle(raw, opts) if err != nil { return nil, err } confs = append(confs, conf) } for _, ax := range axis { // inject the matrix values into the raw script injected := inject.Inject(raw, ax) conf, err := ParseSingle(injected, opts) if err != nil { return nil, err } conf.Axis = common.Axis(ax) confs = append(confs, conf) } return confs, nil } // helper funtion to parse a yaml configuration file. func ParseSingle(raw string, opts *Opts) (*common.Config, error) { conf := &common.Config{} err := yaml.Unmarshal([]byte(raw), conf) if err != nil { return nil, err } // lint the yaml file err = Lint(conf) if err != nil { return nil, err } // apply rules / transofms transformSetup(conf) transformClone(conf) transformBuild(conf) transformImages(conf) transformDockerPlugin(conf) if !opts.Network { rmNetwork(conf) } if !opts.Volumes { rmVolumes(conf) } if !opts.Privileged { rmPrivileged(conf) } return conf, err }