Enum WalkOutcome 

pub enum WalkOutcome {
    RunScript {
        command: String,
        docker: Option<String>,
        cwd: PathBuf,
    },
    ExecCommand {
        config: Box<CommandConfig>,
        preset: Option<String>,
        tail: Vec<String>,
        cmd_dir: PathBuf,
    },
    RefreshSchema {
        config: Box<CommandConfig>,
        cmd_dir: PathBuf,
        cmd_name: String,
    },
    PrintCommandHelp {
        config: Box<CommandConfig>,
        name: String,
    },
    PrintPresetHelp {
        config: Box<CommandConfig>,
        parent_label: String,
        preset_name: String,
    },
    PrintRunHelp {
        name: String,
        description: Option<String>,
        run: String,
        docker: Option<String>,
    },
    UnknownCommand {
        name: String,
    },
    PresetAtTopLevel {
        name: String,
    },
    Error(String),
}

What the outer walker resolved a user invocation to. The caller owns every impure action (spawning, printing, exit code); the walker just returns the terminal state.

Variants

RunScript

Top-level or nested Run — caller runs the inline script.

Fields

command: String

docker: Option<String>

cwd: PathBuf

ExecCommand

Path-or-Preset terminal → caller invokes the child’s entry. For a Preset, preset is the preset name inside the enclosing commands: block; for a Path-Exec it is None.

Fields

config: Box<CommandConfig>

preset: Option<String>

tail: Vec<String>

cmd_dir: PathBuf

RefreshSchema

Path terminal with --refresh-schema in the tail.

Fields

config: Box<CommandConfig>

cmd_dir: PathBuf

cmd_name: String

PrintCommandHelp

Path terminal with --help / -h in the tail.

Fields

config: Box<CommandConfig>

name: String

PrintPresetHelp

Preset terminal with --help / -h in the tail.

Fields

config: Box<CommandConfig>

parent_label: String

preset_name: String

PrintRunHelp

Run terminal with --help / -h in the tail.

Fields

name: String

description: Option<String>

run: String

docker: Option<String>

UnknownCommand

The top-level or descended-into name doesn’t exist in the current commands: map. Caller prints the project-help banner.

Fields

name: String

PresetAtTopLevel

A Preset-kind command at the top level has nothing to reuse an entry: from. Caller prints a pointer to the fix.

Fields

name: String

Error(String)

Structural error: spec declares both run: and path:, or a child fdl.yml failed to load / parse. String is the diagnostic.