import from notify_push

src/lib.rs

@@ -0,0 +1,95 @@
+mod nc;
+
+use redis::{ConnectionAddr, ConnectionInfo};
+use sqlx::any::AnyConnectOptions;
+use std::iter::once;
+use std::path::PathBuf;
+use thiserror::Error;
+
+pub use nc::parse;
+
+#[derive(Debug)]
+pub struct Config {
+    pub database: AnyConnectOptions,
+    pub database_prefix: String,
+    pub redis: RedisConfig,
+    pub nextcloud_url: String,
+}
+
+#[derive(Debug)]
+pub enum RedisConfig {
+    Single(ConnectionInfo),
+    Cluster(Vec<ConnectionInfo>),
+}
+
+impl RedisConfig {
+    pub fn addr(&self) -> impl Iterator<Item = &ConnectionAddr> {
+        let boxed: Box<dyn Iterator<Item = &ConnectionAddr>> = match self {
+            RedisConfig::Single(conn) => Box::new(once(conn.addr.as_ref())),
+            RedisConfig::Cluster(conns) => Box::new(conns.iter().map(|conn| conn.addr.as_ref())),
+        };
+        boxed
+    }
+
+    pub fn db(&self) -> i64 {
+        match self {
+            RedisConfig::Single(conn) => conn.db,
+            RedisConfig::Cluster(conns) => conns.first().map(|conn| conn.db).unwrap_or_default(),
+        }
+    }
+
+    pub fn username(&self) -> Option<&str> {
+        match self {
+            RedisConfig::Single(conn) => conn.username.as_deref(),
+            RedisConfig::Cluster(conns) => conns
+                .first()
+                .map(|conn| conn.username.as_deref())
+                .unwrap_or_default(),
+        }
+    }
+
+    pub fn passwd(&self) -> Option<&str> {
+        match self {
+            RedisConfig::Single(conn) => conn.passwd.as_deref(),
+            RedisConfig::Cluster(conns) => conns
+                .first()
+                .map(|conn| conn.passwd.as_deref())
+                .unwrap_or_default(),
+        }
+    }
+
+    pub fn into_vec(self) -> Vec<ConnectionInfo> {
+        match self {
+            RedisConfig::Single(conn) => vec![conn],
+            RedisConfig::Cluster(vec) => vec,
+        }
+    }
+}
+
+type Result<T, E = Error> = std::result::Result<T, E>;
+
+#[derive(Debug, Error)]
+pub enum Error {
+    #[error("Error while parsing php literal: {0:#}")]
+    Php(#[from] php_literal_parser::ParseError),
+    #[error("Provided config file doesn't seem to be a nextcloud config file: {0:#}")]
+    NotAConfig(#[from] NotAConfigError),
+    #[error("Failed to read config file")]
+    ReadFailed(std::io::Error, PathBuf),
+    #[error("unsupported database type {0}")]
+    UnsupportedDb(String),
+    #[error("no database configuration")]
+    NoDb,
+    #[error("Invalid redis configuration")]
+    Redis,
+    #[error("`overwrite.cli.url` not set`")]
+    NoUrl,
+}
+
+#[derive(Debug, Error)]
+pub enum NotAConfigError {
+    #[error("$CONFIG not found in file")]
+    NoConfig(PathBuf),
+    #[error("$CONFIG is not an array")]
+    NotAnArray(PathBuf),
+}