Struct ArgConfig

pub struct ArgConfig {
    pub uuid: Uuid,
    pub uuid_gen: bool,
    pub db_url: String,
    pub table: String,
    pub cfg: HashMap<String, String>,
    pub token: Token,
    pub pk: Option<KeyFile>,
    pub secret: Option<String>,
}

App startup args:

• db connection url: usually the first arg

  • or prefix with: ’–db ’ (optional, default postgres:// )

• config table name in format: schema.table, usually the second arg.

  • or prefix with: ’–config ’ (optional, default public.{the_appname})

• token (db pwd) script name usually the third arg (required feature ‘token’)

  • or prefix with ’–token ’

• token live in minutes, usually the forth arg (required feature ‘token’)

  • or prefix with ’–ttl ’

• UUID this app instance to use as a node id or config recognition. Identified as UUID formatted string.

  • or prefix with ’–uuid ’

• (Private) Key text file name to use with RSA OR AES encryption (required feature ‘rsa’)

  • or prefix with ’–key ’

• cipher secret for AES taken from env [SECRET] OR cml –secret compile with keep_env_secret feature to not remove from env

Alternative configuration:

• file name, usually the first arg
  • or prefix with ’–file ’

File format:

• db: OR db=
• config: OR config=
• token: OR token=
• uuid: OR uuid=
• ttl: OR ttl=
• pk: OR pk=

params passed in cmd line override params loaded from file & env.

env: PGPASSWORD, in case of postgres db url, use to connect to the DB PASSPHRASE, in case of RSA private key required a passphrase

Fields

uuid: Uuid

instance ID

uuid_gen: bool

indicate the instance uuid was set or autogenerated on (every) start

db_url: String

database connection string

table: String

Format: schema.table

cfg: HashMap<String, String>

key=value loaded from file if present

token: Token

token (i.e. db pwd) script name usually the third arg (required feature ‘token’)

pk: Option<KeyFile>

RSA private key file name to use with RSA OR AES encryption (required feature ‘rsa’)

secret: Option<String>

cipher secret for AES taken from env [SECRET] OR cml –secret use keep_env_secret feature to not remove from env

Implementations

impl ArgConfig

pub fn from_args() -> Result<ArgConfig, String>

pub fn db_url(&self) -> String

append with password if $PWD present in ‘db’

Trait Implementations

impl Clone for ArgConfig

fn clone(&self) -> ArgConfig

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ArgConfig

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.