feat: Docker Compose files in repos

compose.yaml, docker-compose.yml and their variants tracked by git are
listed under Repos, their services' environment variables as secrets,
named service.VAR.

- environment as a map or a list, and <<: *anchors shared between
  services; the secret patterns pick the keys, the rest hidden, with
  compose.secretPatterns for compose files' own.
- ${VAR}, $VAR, ${VAR:?…} and variables without a value are marked as
  references; docker-compose.example.yml and the like are hidden.
- Jasypt values decrypt with the service's JASYPT_ENCRYPTOR_PASSWORD.
- A blue Docker icon, themeable with composeColor.

internal/ui/app/favourites.go

@@ -102,13 +102,16 @@ func (m Model) containerRender(withSource bool) func(styles.Styles, provider.Con
 		n := st.Node(storeKey(c))
 		line := c.Name
 		if c.Source.Kind == provider.KindRepo {
-			// A secret file: a lock for an encrypted one, a leaf
-			// for Spring config, a file in the warning colour for plain
-			// text, and its type after it ("sops · age", "env · plain text").
+			// A secret file: a lock for an encrypted one, a leaf for
+			// Spring config, a whale for compose, a file in the warning
+			// colour for plain text, and its type after it ("sops ·
+			// age", "env · plain text").
 			icon, style := iconSet.Encrypted, sty.KindRepo
 			switch {
 			case strings.HasPrefix(c.Detail, "spring"):
 				icon, style = iconSet.Spring, sty.Spring
+			case strings.HasPrefix(c.Detail, "compose"):
+				icon, style = iconSet.Compose, sty.Compose
 			case !strings.HasPrefix(c.Detail, "sops"):
 				icon, style = iconSet.PlainFile, sty.Warning
 			}

internal/ui/icons/icons.go

@@ -12,6 +12,7 @@ type Set struct {
 	Encrypted  string // an encrypted file (SOPS)
 	PlainFile  string // a plain text secrets file (.env)
 	Spring     string // a Spring Boot config file
+	Compose    string // a Docker Compose file
 	Note       string // has a note (lazysecrets list)
 }
 
@@ -27,6 +28,7 @@ var NerdFont = Set{
 	Encrypted:  "\U000F033E", // md-lock
 	PlainFile:  "\U000F0214", // md-file
 	Spring:     "\U000F032A", // md-leaf
+	Compose:    "\U000F0868", // md-docker
 	Note:       "\U000F09ED",
 }
 

internal/ui/keys/keys.go

@@ -103,7 +103,7 @@ func (m *Map) Actions() []Action {
 		a(Lists, "prevTab", &m.PrevTab, "prev tab", "lists", "Previous tab of the focused pane: Sources and Favourites in Sources; Secrets, Keys, Certs in Secrets."),
 		a(Lists, "nextTab", &m.NextTab, "next tab", "lists", "Next tab of the focused pane."),
 		a(Lists, "sourcesView", &m.SourcesView, "grouped/flat sources", "lists", "Switch the Sources pane between grouped by provider and a flat list."),
-		a(Lists, "toggleHidden", &m.ToggleHidden, "show/hide hidden", "lists", "Show or hide what's hidden: Spring config keys that don't look like secrets, and files and repos with only those. Shown, they're dimmed; Go to finds them too."),
+		a(Lists, "toggleHidden", &m.ToggleHidden, "show/hide hidden", "lists", "Show or hide what's hidden: Spring and compose keys that don't look like secrets, example files (.env.example), and files and repos with only those. Shown, they're dimmed; Go to finds them too."),
 		a(Lists, "star", &m.Favourite, "star", "lists", "Star or unstar the selected subscription, vault or secret, for the account showing it. Starred items get a ★ and sort first."),
 		a(Lists, "goTo", &m.Search, "search", "lists", "Go to anything: search every vault and secret loaded and jump to one. Again in Go to: only the source or group you're in, and back to all. On the left, the scope: All, an account (or Databricks, or Repos), or one source (○ ◐ ● for how much of it is loaded)."),
 		a(Lists, "favourites", &m.Favourites, "favourites", "lists", "Go to, on Favourites: everything you've starred, to search and jump to."),

internal/ui/styles/styles.go

@@ -35,6 +35,7 @@ type Styles struct {
 	KindDatabricks lipgloss.Style
 	KindRepo       lipgloss.Style
 	Spring         lipgloss.Style // Spring Boot config files
+	Compose        lipgloss.Style // Docker Compose files
 
 	// themed marks the selection colours as set by the theme, so
 	// OnBackground leaves them.
@@ -72,6 +73,7 @@ func Default() Styles {
 		KindDatabricks: lipgloss.NewStyle().Foreground(lipgloss.Red),
 		KindRepo:       lipgloss.NewStyle().Foreground(lipgloss.Magenta),
 		Spring:         lipgloss.NewStyle().Foreground(lipgloss.Green),
+		Compose:        lipgloss.NewStyle().Foreground(lipgloss.Blue),
 	}
 }
 

internal/ui/styles/theme.go

@@ -43,6 +43,7 @@ var Roles = map[string]string{
 	"databricksColor":                 "Databricks workspaces and scopes",
 	"repoColor":                       "repos and their secret files (SOPS)",
 	"springColor":                     "Spring Boot config files",
+	"composeColor":                    "Docker Compose files",
 }
 
 // FromTheme returns the default styles with the theme's roles applied, and
@@ -102,6 +103,8 @@ func FromTheme(theme map[string][]string) (Styles, color.Color, error) {
 			st.KindRepo = v.fg(lipgloss.NewStyle())
 		case "springColor":
 			st.Spring = v.fg(lipgloss.NewStyle())
+		case "composeColor":
+			st.Compose = v.fg(lipgloss.NewStyle())
 		}
 	}
 	return st, fg, nil