Feature 57 (config and provisioning): modules declare config and provisions, their files rendered from templates; synced with main (issues of feature 57, 874)
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@@ -12,27 +12,35 @@ import (
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// every desktop module that carries it.
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type manifest struct {
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Module string `json:"module"`
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Version string `json:"version"`
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Capabilities []string `json:"capabilities"`
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Requires []string `json:"requires"`
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Claims []claim `json:"claims"`
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Seats []any `json:"seats"`
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Tools []string `json:"tools"`
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Settings map[string]setting `json:"settings"`
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Environment *environment `json:"environment"`
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Shell []shellCode `json:"shell"`
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Resources []map[string]any `json:"resources"`
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Module string `json:"module"`
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Version string `json:"version"`
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Capabilities []string `json:"capabilities"`
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Requires []string `json:"requires"`
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Claims []claim `json:"claims"`
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Seats []any `json:"seats"`
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Tools []string `json:"tools"`
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Config map[string]config `json:"config"`
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Environment *environment `json:"environment"`
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Shell []shellCode `json:"shell"`
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Resources []map[string]any `json:"resources"`
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Build struct {
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Artifacts []map[string]any `json:"artifacts"`
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} `json:"build"`
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}
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// setting is one key's default, as the definition gives it (novox/hq ADR 0262).
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type setting struct {
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Kind string `json:"kind"`
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Default any `json:"default"`
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Why string `json:"why"`
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// config is one config value as the definition declares it (novox/hq ADR 0348 §4).
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type config struct {
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Type string `json:"type"`
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Description string `json:"description"`
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Enum []any `json:"enum"`
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Minimum *float64 `json:"minimum"`
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Maximum *float64 `json:"maximum"`
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Pattern string `json:"pattern"`
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Trusted bool `json:"trusted"`
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Predefined string `json:"predefined"`
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Default any `json:"default"`
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Required bool `json:"required"`
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Runtime bool `json:"runtime"`
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}
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type claim struct {
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@@ -91,26 +99,66 @@ func (m manifest) packages() (present, absent []string) {
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return present, absent
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}
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// sameAsSource checks that a file resource's content is byte for byte the module's source file, so
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// the readable file in the repository is what the machine gets.
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func (m manifest) sameAsSource(t *testing.T, id, source string) {
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// fromTemplate checks that a file resource takes its text from its template file in the module's
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// repository (novox/hq ADR 0349 §2): it names the template, carries no text of its own beside it, and the
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// template is there. The readable file in the repository is the one place the machine's text is written.
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func (m manifest) fromTemplate(t *testing.T, id, template string) {
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t.Helper()
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want, err := os.ReadFile(filepath.Join("..", "..", source))
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if err != nil {
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t.Fatal(err)
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}
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r := m.resource(t, id)
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if r["type"] != "file" {
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t.Fatalf("%s is a %v, not a file", id, r["type"])
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}
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if got, _ := r["content"].(string); got != string(want) {
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t.Fatalf("resource %s's content is not %s: edit the source and copy it into module.json", id, source)
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if r["template"] != template {
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t.Fatalf("resource %s does not take its text from %s: template %v", id, template, r["template"])
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}
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if _, inline := r["content"]; inline {
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t.Fatalf("resource %s keeps its text inline beside its template: a file's text is in one place", id)
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}
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if _, err := os.Stat(filepath.Join("..", "..", template)); err != nil {
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t.Fatalf("resource %s names %s: %v", id, template, err)
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}
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if r["owner"] != "${machine:account}" && !strings.HasPrefix(r["path"].(string), "/etc/") {
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t.Fatalf("%s under the home is the account's", id)
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}
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}
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// everyFileIsATemplate checks that no file resource carries its text inline, and that the build packs
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// files/ into the one archive the controller reads the templates back from (novox/hq ADR 0349 §2).
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func (m manifest) everyFileIsATemplate(t *testing.T) {
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t.Helper()
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for _, r := range m.Resources {
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if _, inline := r["content"]; inline {
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t.Errorf("resource %v keeps its text inline: keep it in files/ and name it as the template", r["id"])
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}
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}
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packs := 0
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for _, a := range m.Build.Artifacts {
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if a["kind"] == "archive" && a["from"] == "files" {
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packs++
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if a["name"] != "files" {
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t.Errorf("the templates archive is named %v, not files", a["name"])
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}
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}
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}
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if packs != 1 {
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t.Errorf("the build packs files/ into %d archives, not one", packs)
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}
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}
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// text is the text a file resource places on the machine: its template file's.
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func (m manifest) text(t *testing.T, id string) string {
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t.Helper()
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name, _ := m.resource(t, id)["template"].(string)
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if name == "" {
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t.Fatalf("resource %s names no template", id)
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}
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raw, err := os.ReadFile(filepath.Join("..", "..", name))
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if err != nil {
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t.Fatal(err)
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}
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return string(raw)
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}
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// checkTheToolsAgree checks that the manifest lists the module's own tools exactly, that the bundle
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// serves each seat verb the claims promise as <seat>.<verb>, and that the Go bundle is declared.
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func checkTheToolsAgree(t *testing.T, m manifest) {
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@@ -28,7 +28,7 @@ func TestItClaimsTheCompositorSeatAndRequiresTheXDisplay(t *testing.T) {
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func TestItOwnsItsConfigurationAsWrittenInTheModule(t *testing.T) {
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m := readManifest(t)
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m.sameAsSource(t, "configuration", "files/picom.conf")
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m.fromTemplate(t, "configuration", "files/picom.conf")
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if p := m.resource(t, "configuration")["path"]; p != "${machine:account-home}/.config/picom/picom.conf" {
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t.Fatalf("path: %v", p)
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}
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@@ -62,16 +62,19 @@ func TestTheToolsAgreeWithTheManifest(t *testing.T) {
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// The backend and damage tracking are each machine's (novox/hq research 037: the backend depends on the
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// machine's graphics driver; issue 345: a window left unpainted under glx is the first suspect). Both
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// are settings whose defaults are what every machine ran before, so the file filled with them is today's.
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func TestTheBackendAndDamageTrackingAreSettingsWithTodaysDefaults(t *testing.T) {
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// are config values whose defaults are what every machine ran before, so the file filled with them is today's
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// (novox/hq ADR 0348 §4): the backend a string of picom's backends, damage tracking a boolean, both trusted
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// as the file is.
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func TestTheBackendAndDamageTrackingAreConfigValuesWithTodaysDefaults(t *testing.T) {
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m := readManifest(t)
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b, d := m.Settings["backend"], m.Settings["use-damage"]
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if b.Kind != "preference" || b.Default != "glx" || b.Why == "" || d.Kind != "preference" || d.Default != true || d.Why == "" {
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t.Fatalf("settings: %+v", m.Settings)
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b, d := m.Config["backend"], m.Config["use-damage"]
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if b.Type != "string" || b.Default != "glx" || b.Description == "" || !b.Trusted || len(b.Enum) == 0 ||
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d.Type != "boolean" || d.Default != true || d.Description == "" || !d.Trusted {
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t.Fatalf("config: %+v", m.Config)
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}
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r := m.resource(t, "configuration")
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c := r["content"].(string)
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for _, want := range []string{`backend = "${setting:backend}";`, "use-damage = ${setting:use-damage};"} {
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c := m.text(t, "configuration")
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for _, want := range []string{`backend = "${config:backend}";`, "use-damage = ${config:use-damage};"} {
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if !strings.Contains(c, want) {
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t.Errorf("the file asks for %q", want)
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}
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@@ -88,7 +91,12 @@ func TestTheBackendAndDamageTrackingAreSettingsWithTodaysDefaults(t *testing.T)
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}
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}
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// withDefaults fills the file's settings with their defaults, as a machine without its own values gets it.
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// withDefaults fills the file's config values with their defaults, as a machine without its own values gets it.
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func withDefaults(c string) string {
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return strings.NewReplacer("${setting:backend}", "glx", "${setting:use-damage}", "true").Replace(c)
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return strings.NewReplacer("${config:backend}", "glx", "${config:use-damage}", "true").Replace(c)
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}
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// No file resource carries its text inline (novox/hq ADR 0349 §2).
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func TestEveryFileTakesItsTextFromATemplate(t *testing.T) {
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readManifest(t).everyFileIsATemplate(t)
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}
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