config: change default config to use toml-based configuration

toml-config/src/config/parsers/connector.rs

@@ -0,0 +1,83 @@
+use {
+    crate::{
+        config::{
+            context::Context,
+            extractor::{bol, opt, val, Extractor, ExtractorError},
+            parser::{DataType, ParseResult, Parser, UnexpectedDataType},
+            parsers::connector_match::{ConnectorMatchParser, ConnectorMatchParserError},
+            ConfigConnector,
+        },
+        toml::{
+            toml_span::{DespanExt, Span, Spanned},
+            toml_value::Value,
+        },
+    },
+    indexmap::IndexMap,
+    thiserror::Error,
+};
+
+#[derive(Debug, Error)]
+pub enum ConnectorParserError {
+    #[error(transparent)]
+    Expected(#[from] UnexpectedDataType),
+    #[error(transparent)]
+    Extract(#[from] ExtractorError),
+    #[error(transparent)]
+    Match(#[from] ConnectorMatchParserError),
+}
+
+pub struct ConnectorParser<'a>(pub &'a Context<'a>);
+
+impl<'a> Parser for ConnectorParser<'a> {
+    type Value = ConfigConnector;
+    type Error = ConnectorParserError;
+    const EXPECTED: &'static [DataType] = &[DataType::Table];
+
+    fn parse_table(
+        &mut self,
+        span: Span,
+        table: &IndexMap<Spanned<String>, Spanned<Value>>,
+    ) -> ParseResult<Self> {
+        let mut ext = Extractor::new(self.0, span, table);
+        let (match_val, enabled) = ext.extract((val("match"), opt(bol("enabled"))))?;
+        Ok(ConfigConnector {
+            match_: match_val.parse_map(&mut ConnectorMatchParser(self.0))?,
+            enabled: enabled.despan().unwrap_or(true),
+        })
+    }
+}
+
+pub struct ConnectorsParser<'a>(pub &'a Context<'a>);
+
+impl<'a> Parser for ConnectorsParser<'a> {
+    type Value = Vec<ConfigConnector>;
+    type Error = ConnectorParserError;
+    const EXPECTED: &'static [DataType] = &[DataType::Table, DataType::Array];
+
+    fn parse_array(&mut self, _span: Span, array: &[Spanned<Value>]) -> ParseResult<Self> {
+        let mut res = vec![];
+        for el in array {
+            match el.parse(&mut ConnectorParser(self.0)) {
+                Ok(o) => res.push(o),
+                Err(e) => {
+                    log::warn!("Could not parse connector: {}", self.0.error(e));
+                }
+            }
+        }
+        Ok(res)
+    }
+
+    fn parse_table(
+        &mut self,
+        span: Span,
+        table: &IndexMap<Spanned<String>, Spanned<Value>>,
+    ) -> ParseResult<Self> {
+        log::warn!(
+            "`connectors` value should be an array: {}",
+            self.0.error3(span)
+        );
+        ConnectorParser(self.0)
+            .parse_table(span, table)
+            .map(|v| vec![v])
+    }
+}