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Allow passing command line params via environment (fixes #4603) (#4729) 

* Allow passing command line params via environment (fixes #4603)

* add prefix

---------

Co-authored-by: SleeplessOne1917 <28871516+SleeplessOne1917@users.noreply.github.com>
pull/4740/head
Nutomic 2024-05-22 14:39:01 +02:00 committed by GitHub
parent 973f39601c
commit 943c31cc72
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2 changed files with 8 additions and 6 deletions
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2
Cargo.toml
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@ -165,7 +165,7 @@ urlencoding = "2.1.3"
enum-map = "2.7"
moka = { version = "0.12.7", features = ["future"] }
i-love-jesus = { version = "0.1.0" }
clap = { version = "4.5.4", features = ["derive"] }
clap = { version = "4.5.4", features = ["derive", "env"] }
pretty_assertions = "1.4.0"
[dependencies]

12
src/lib.rs
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@ -70,23 +70,25 @@ use url::Url;
about = "A link aggregator for the fediverse",
long_about = "A link aggregator for the fediverse.\n\nThis is the Lemmy backend API server. This will connect to a PostgreSQL database, run any pending migrations and start accepting API requests."
)]
// TODO: Instead of defining individual env vars, only specify prefix once supported by clap.
// https://github.com/clap-rs/clap/issues/3221
pub struct CmdArgs {
/// Don't run scheduled tasks.
///
/// If you are running multiple Lemmy server processes, you probably want to disable scheduled tasks on
/// all but one of the processes, to avoid running the tasks more often than intended.
#[arg(long, default_value_t = false)]
#[arg(long, default_value_t = false, env = "LEMMY_DISABLE_SCHEDULED_TASKS")]
disable_scheduled_tasks: bool,
/// Disables the HTTP server.
///
/// This can be used to run a Lemmy server process that only performs scheduled tasks or activity sending.
#[arg(long, default_value_t = false)]
#[arg(long, default_value_t = false, env = "LEMMY_DISABLE_HTTP_SERVER")]
disable_http_server: bool,
/// Disable sending outgoing ActivityPub messages.
///
/// Only pass this for horizontally scaled setups.
/// See https://join-lemmy.org/docs/administration/horizontal_scaling.html for details.
#[arg(long, default_value_t = false)]
#[arg(long, default_value_t = false, env = "LEMMY_DISABLE_ACTIVITY_SENDING")]
disable_activity_sending: bool,
/// The index of this outgoing federation process.
///
@ -96,12 +98,12 @@ pub struct CmdArgs {
/// Make you have exactly one server with each `i` running, otherwise federation will randomly send duplicates or nothing.
///
/// See https://join-lemmy.org/docs/administration/horizontal_scaling.html for more detail.
#[arg(long, default_value_t = 1)]
#[arg(long, default_value_t = 1, env = "LEMMY_FEDERATE_PROCESS_INDEX")]
federate_process_index: i32,
/// How many outgoing federation processes you are starting in total.
///
/// If set, make sure to set --federate-process-index differently for each.
#[arg(long, default_value_t = 1)]
#[arg(long, default_value_t = 1, env = "LEMMY_FEDERATE_PROCESS_COUNT")]
federate_process_count: i32,
}