// runProjectPoll generates a description of changes that exist
// remotely but do not exist locally.
func runProjectPoll(env *cmdline.Env, args []string) error {
ctx := tool.NewContextFromEnv(env)
projectSet := map[string]struct{}{}
if len(args) > 0 {
config, err := util.LoadConfig(ctx)
if err != nil {
return err
}
// Compute a map from tests to projects that can change the
// outcome of the test.
testProjects := map[string][]string{}
for _, project := range config.Projects() {
for _, test := range config.ProjectTests([]string{project}) {
testProjects[test] = append(testProjects[test], project)
}
}
for _, arg := range args {
projects, ok := testProjects[arg]
if !ok {
return fmt.Errorf("failed to find any projects for test %q", arg)
}
set.String.Union(projectSet, set.String.FromSlice(projects))
}
}
update, err := project.PollProjects(ctx, projectSet)
if err != nil {
return err
}
// Remove projects with empty changes.
for project := range update {
if changes := update[project]; len(changes) == 0 {
delete(update, project)
}
}
// Print update if it is not empty.
if len(update) > 0 {
bytes, err := json.MarshalIndent(update, "", " ")
if err != nil {
return fmt.Errorf("MarshalIndent() failed: %v", err)
}
fmt.Fprintf(env.Stdout, "%s\n", bytes)
}
return nil
}
// NewConfigHelper creates a new config helper. If filename is of non-zero
// length then that file will be read as a profiles manifest file, if not, the
// existing, if any, in-memory profiles information will be used. If SkipProfiles
// is specified for profilesMode, then no profiles are used.
func NewConfigHelper(ctx *tool.Context, profilesMode ProfilesMode, filename string) (*ConfigHelper, error) {
root, err := project.JiriRoot()
if err != nil {
return nil, err
}
config, err := util.LoadConfig(ctx)
if err != nil {
return nil, err
}
projects, tools, err := project.ReadManifest(ctx)
if err != nil {
return nil, err
}
if profilesMode == UseProfiles && len(filename) > 0 {
if err := Read(ctx, filepath.Join(root, filename)); err != nil {
return nil, err
}
}
ch := &ConfigHelper{
ctx: ctx,
root: root,
config: config,
projects: projects,
tools: tools,
profilesMode: bool(profilesMode),
}
ch.Vars = envvar.VarsFromOS()
if profilesMode == SkipProfiles {
return ch, nil
}
ch.legacyMode = (SchemaVersion() == Original) || (len(os.Getenv("JIRI_PROFILE")) > 0)
if ch.legacyMode {
vars, err := util.JiriLegacyEnvironment(ch.ctx)
if err != nil {
return nil, err
}
ch.Vars = vars
}
return ch, nil
}