Crate vantage_cmd 

vantage-cmd — a Vantage persistence backend that gets its data by running a local command (the aws CLI, kubectl, gh, …).

The design pins down a strict security boundary and hands everything else to a Rhai script:

• The command is locked on the Cmd datasource — a script can never change which binary runs.
• Environment variables are locked — the child process gets a cleared environment plus only the vars declared on the datasource / table (and PATH/HOME so the binary is locatable, toggleable via Cmd::with_pass_path).
• The arguments and the output parsing are scripted in Rhai. When a table is read, the script runs with the table’s conditions, columns, limit, offset and id_column in scope; it builds an argv, calls the registered run(args) callback (which executes the locked command), then parses the captured output into rows.

const LOG_GROUPS: &str = r#"
    let args = ["logs", "describe-log-groups", "--output", "json"];
    for c in conditions {
        if c.field == "logGroupNamePrefix" {
            args += ["--log-group-name-prefix", c.value];
        }
    }
    let out = run(args);
    if out.exit_code != 0 { throw out.stderr; }
    parse_json(out.stdout).logGroups
"#;

let cmd = Cmd::new("aws")
    .with_env("AWS_REGION", "us-east-1")
    .with_script("log.groups", LOG_GROUPS);

let groups = Table::<Cmd, EmptyEntity>::new("log.groups", cmd)
    .with_id_column("logGroupName")
    .with_column_of::<i64>("creationTime");

Modules

models

CmdModelFactory — maps dotted model names (iam.users, log.groups, log.group, …) to YAML-backed Vistas, mirroring vantage_aws::models::Factory.

vista

Vista integration for vantage-cmd: the YAML-facing spec types, the factory (typed-table and YAML construction), and the TableShell.

Structs

Cmd

A command-execution datasource.

CmdOutput

Captured result of a single command invocation.

CmdSpec

Per-table configuration registered on a Cmd: the Rhai script that builds the argv and parses the output, plus optional command / env overrides that win over the datasource-level defaults.

Enums

AnyCmdType

One value in a command-backed record, at the rendering boundary.

CmdCondition

A filter on a command-backed table.

Traits

CmdOperation

Build conditions from a typed column without going through the expression machinery (command backends filter via CLI flags, not SQL).

Functions

eq

field == value. Shorthand for CmdCondition::eq.