106 lines
2.4 KiB
Go
106 lines
2.4 KiB
Go
package parser
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import (
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common "github.com/drone/drone/pkg/types"
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"github.com/drone/drone/pkg/yaml/inject"
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"github.com/drone/drone/pkg/yaml/matrix"
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"github.com/drone/drone/pkg/yaml/transform"
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"github.com/drone/drone/Godeps/_workspace/src/gopkg.in/yaml.v2"
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)
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// Opts specifies parser options that will permit
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// or deny certain Yaml settings.
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type Opts struct {
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Volumes bool
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Network bool
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Privileged bool
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Whitelist []string
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}
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var DefaultOpts = &Opts{
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Volumes: false,
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Network: false,
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Privileged: false,
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Whitelist: []string{"plugins/*"},
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}
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// Parse parses a build matrix and returns
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// a list of build configurations for each axis
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// using the default parsing options.
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func Parse(raw string, r *common.Repo) ([]*common.Config, error) {
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return ParseOpts(raw, DefaultOpts, r)
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}
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// ParseOpts parses a build matrix and returns
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// a list of build configurations for each axis
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// using the provided parsing options.
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func ParseOpts(raw string, opts *Opts, r *common.Repo) ([]*common.Config, error) {
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axis, err := matrix.Parse(raw)
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if err != nil {
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return nil, err
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}
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confs := []*common.Config{}
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// when no matrix values exist we should return
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// a single config value with an empty label.
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if len(axis) == 0 {
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conf, err := ParseSingle(raw, opts, r)
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if err != nil {
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return nil, err
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}
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confs = append(confs, conf)
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}
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for _, ax := range axis {
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// inject the matrix values into the raw script
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injected := inject.Inject(raw, ax)
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conf, err := ParseSingle(injected, opts, r)
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if err != nil {
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return nil, err
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}
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conf.Axis = common.Axis(ax)
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confs = append(confs, conf)
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}
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return confs, nil
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}
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// helper funtion to parse a yaml configuration file.
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func ParseSingle(raw string, opts *Opts, r *common.Repo) (*common.Config, error) {
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conf := &common.Config{}
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err := yaml.Unmarshal([]byte(raw), conf)
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if err != nil {
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return nil, err
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}
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// lint the yaml file
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err = Lint(conf)
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if err != nil {
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return nil, err
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}
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// apply rules / transforms
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transform.Defaults(conf)
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if !opts.Network {
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transform.RemoveNetwork(conf)
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}
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if !opts.Volumes {
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transform.RemoveVolumes(conf)
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}
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if !opts.Privileged {
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transform.RemovePrivileged(conf)
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}
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transform.Repo(conf, r)
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err = LintPlugins(conf, opts)
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if err != nil {
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return nil, err
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}
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return conf, err
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}
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func ParseCondition(raw string) (*common.Condition, error) {
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c := struct {
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Condition *common.Condition `yaml:"when"`
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}{}
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err := yaml.Unmarshal([]byte(raw), c)
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return c.Condition, err
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}
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