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use std::path::PathBuf;
use std::fmt::Debug;
use std::ops::Deref;
use std::collections::BTreeMap;
use anyhow::Result;
use anyhow::Context;
use getset::Getters;
use getset::CopyGetters;
use serde::Deserialize;
use handlebars::Handlebars;
use crate::phase::PhaseName;
use crate::util::EnvironmentVariableName;
use crate::util::docker::ImageName;
#[derive(Debug, Getters, Deserialize)]
pub struct NotValidatedConfiguration {
#[getset(get = "pub")]
repository: PathBuf,
#[serde(rename = "releases")]
releases_directory: String,
#[serde(rename = "staging")]
staging_directory: String,
#[getset(get = "pub")]
#[serde(rename = "database_host")]
database_host: String,
#[getset(get = "pub")]
#[serde(rename = "database_port")]
database_port: String,
#[getset(get = "pub")]
#[serde(rename = "database_user")]
database_user: String,
#[getset(get = "pub")]
#[serde(rename = "database_password")]
database_password: String,
#[getset(get = "pub")]
#[serde(rename = "database_name")]
database_name: String,
#[getset(get = "pub")]
docker: DockerConfig,
#[getset(get = "pub")]
containers: ContainerConfig,
#[getset(get = "pub")]
available_phases: Vec<PhaseName>,
}
impl<'reg> NotValidatedConfiguration {
pub fn validate(self) -> Result<Configuration<'reg>> {
// TODO: Implement proper validation
let hb = {
let mut hb = Handlebars::new();
hb.register_template_string("releases", &self.releases_directory)?;
hb.register_template_string("staging", &self.staging_directory)?;
hb
};
Ok(Configuration {
inner: self,
hb,
})
}
}
#[derive(Debug)]
pub struct Configuration<'reg> {
inner: NotValidatedConfiguration,
hb: Handlebars<'reg>,
}
impl<'reg> Deref for Configuration<'reg> {
type Target = NotValidatedConfiguration;
fn deref(&self) -> &Self::Target {
&self.inner
}
}
impl<'reg> Configuration<'reg> {
/// Get the path to the releases directory, interpolate every variable used in the config
pub fn releases_directory(&self, hm: &BTreeMap<String, String>) -> Result<PathBuf> {
self.hb.render("releases", hm)
.map(PathBuf::from)
.context("Interpolating variables into 'release' setting from configuration")
}
/// Get the path to the staging directory, interpolate every variable used in the config
pub fn staging_directory(&self, hm: &BTreeMap<String, String>) -> Result<PathBuf> {
self.hb.render("staging", hm)
.map(PathBuf::from)
.context("Interpolating variables into 'staging' setting from configuration")
}
}
#[derive(Debug, Getters, CopyGetters, Deserialize)]
pub struct DockerConfig {
/// The required docker version
///
/// If not set, it will not be checked, which might result in weird things?
///
/// # Note
///
/// Because the docker API returns strings, not a version object, each compatible version must
/// be listed.
#[getset(get = "pub")]
docker_versions: Option<Vec<String>>,
/// The required docker api version
///
/// If not set, it will not be checked, which might result in weird things?
///
/// # Note
///
/// Because the docker API returns strings, not a version object, each compatible version must
/// be listed.
#[getset(get = "pub")]
docker_api_versions: Option<Vec<String>>,
/// Whether the program should verify that the required images are present.
/// You want this to be true normally.
#[getset(get_copy = "pub")]
verify_images_present: bool,
#[getset(get = "pub")]
images: Vec<ImageName>,
#[getset(get = "pub")]
endpoints: Vec<Endpoint>,
}
#[derive(Debug, Getters, Deserialize)]
pub struct ContainerConfig {
#[getset(get = "pub")]
allowed_env: Vec<EnvironmentVariableName>,
}
#[derive(Clone, Debug, Getters, CopyGetters, Deserialize)]
pub struct Endpoint {
#[getset(get = "pub")]
name: String,
#[getset(get = "pub")]
uri: String,
#[getset(get = "pub")]
endpoint_type: EndpointType,
/// Relative speed to other endpoints
///
/// So if you have two servers, one with 12 cores and one with 24, you want to set "1" for the
/// first and "2" for the second (or "12" for the first and "24" for the second - the ratio is
/// the thing here)!
#[getset(get_copy = "pub")]
speed: usize,
/// Maximum number of jobs which are allowed on this endpoint
#[getset(get_copy = "pub")]
maxjobs: usize,
}
#[derive(Clone, Debug, Deserialize, Eq, PartialEq)]
pub enum EndpointType {
Socket,
Http,
}
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