+41 -231

Cargo.lock

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+1 -2

sachy-config/Cargo.toml

··· 8 rust-version.workspace = true 9 10 [dependencies] 11 - facet = "0.34" 12 - facet-kdl = "0.34" 13 miette = { version = "7", features = ["fancy"] }

··· 8 rust-version.workspace = true 9 10 [dependencies] 11 + toml_edit = "0.24.0" 0 12 miette = { version = "7", features = ["fancy"] }

+84 -86

sachy-config/src/lib.rs

··· 1 use std::io::Write; 2 3 - use facet::Facet; 4 - use facet_kdl as kdl; 5 - use miette::{IntoDiagnostic, Result}; 6 7 - #[derive(Facet, Default)] 8 - #[facet(default)] 9 - pub struct ConfigDoc { 10 - #[facet(kdl::child, default)] 11 - pub constants: Constants, 12 - #[facet(kdl::child, default)] 13 - pub statics: Statics, 14 - } 15 16 - #[derive(Facet, Default)] 17 - #[facet(default)] 18 - pub struct Statics { 19 - #[facet(kdl::children, default)] 20 - statics: Vec<Static>, 21 - } 22 23 - #[derive(Facet, Default)] 24 - #[facet(default)] 25 - pub struct Constants { 26 - #[facet(kdl::children, default)] 27 - pub constants: Vec<Constant>, 28 - } 29 - 30 - #[derive(Facet)] 31 - pub struct Static { 32 - #[facet(kdl::node_name)] 33 - pub name: String, 34 - #[facet(kdl::argument)] 35 - pub value: String, 36 - } 37 - 38 - #[derive(Facet)] 39 - pub struct Constant { 40 - #[facet(kdl::node_name)] 41 - pub name: String, 42 - #[facet(kdl::argument)] 43 - pub kind: String, 44 - #[facet(kdl::argument)] 45 - pub value: String, 46 } 47 48 pub fn parse_config(config: &str) -> Result<String> { 49 - let config_doc: ConfigDoc = kdl::from_str_owned(config)?; 50 let mut output = String::new(); 51 52 - for static_value in config_doc.statics.statics.iter() { 53 - let static_output = format!( 54 - "pub static {}: &str = \"{}\";\n", 55 - &static_value.name, &static_value.value 56 - ); 57 - output.push_str(&static_output); 58 - } 59 - 60 - for constant_value in config_doc.constants.constants.iter() { 61 - let constant_output = format!( 62 - "pub const {}: {} = {};\n", 63 - &constant_value.name, &constant_value.kind, &constant_value.value, 64 - ); 65 - output.push_str(&constant_output); 66 - } 67 - 68 - Ok(output) 69 - } 70 71 - pub fn output_config<W: Write>(config: &str, mut writer: W) -> Result<()> { 72 - let output = parse_config(config)?; 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 73 74 - writer.write_all(output.as_bytes()).into_diagnostic()?; 0 0 0 0 0 0 0 0 75 76 - Ok(()) 77 } 78 79 #[cfg(test)] ··· 84 85 #[test] 86 fn it_parses_config() -> Result<()> { 87 - let input = r#"constants { 88 - FIRST "u8" "2" 89 - VALUE "u64" "42" 90 - } 91 - statics { 92 - EXAMPLE "thing" 93 - }"#; 94 let expected = r#"pub static EXAMPLE: &str = "thing"; 95 pub const FIRST: u8 = 2; 96 - pub const VALUE: u64 = 42; 97 "#; 98 99 let output = parse_config(input)?; ··· 105 106 #[test] 107 fn it_handles_only_statics() -> Result<()> { 108 - let input = r#"statics { 109 - EXAMPLE "thing" 110 - }"#; 111 112 let expected = "pub static EXAMPLE: &str = \"thing\";\n"; 113 ··· 120 121 #[test] 122 fn it_handles_only_constants() -> Result<()> { 123 - let input = r#"constants { 124 - FIRST "u8" "42" 125 - }"#; 126 127 let expected = "pub const FIRST: u8 = 42;\n"; 128 ··· 135 136 #[test] 137 fn it_handles_empty_config() -> Result<()> { 138 - let input = r#"statics {} 139 - constants {}"#; 0 0 0 0 0 0 0 0 140 141 let expected = ""; 142 ··· 149 150 #[test] 151 fn it_outputs_to_file() -> Result<()> { 152 - let input = r#"constants { 153 - FIRST "u8" "2" 154 - VALUE "u64" "42" 155 - } 156 - statics { 157 - EXAMPLE "thing" 158 - }"#; 159 let expected = r#"pub static EXAMPLE: &str = "thing"; 160 pub const FIRST: u8 = 2; 161 pub const VALUE: u64 = 42;

··· 1 use std::io::Write; 2 3 + use miette::{IntoDiagnostic, Result, miette}; 0 0 4 5 + pub fn output_config<W: Write>(config: &str, mut writer: W) -> Result<()> { 6 + let output = parse_config(config)?; 0 0 0 0 0 0 7 8 + writer.write_all(output.as_bytes()).into_diagnostic()?; 0 0 0 0 0 9 10 + Ok(()) 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 11 } 12 13 pub fn parse_config(config: &str) -> Result<String> { 14 + let config_doc = config.parse::<toml_edit::DocumentMut>().into_diagnostic()?; 15 let mut output = String::new(); 16 17 + config_doc 18 + .get("statics") 19 + .and_then(|item| item.as_table()) 20 + .into_iter() 21 + .flat_map(|statics| statics.iter()) 22 + .try_for_each(|(name, item)| -> miette::Result<()> { 23 + let value = item.as_str().ok_or_else(|| { 24 + miette!( 25 + "{} is not a string value. Actual type: {}", 26 + name, 27 + item.type_name(), 28 + ) 29 + })?; 30 + let static_output = format!("pub static {}: &str = \"{}\";\n", name, value); 31 + output.push_str(&static_output); 32 + Ok(()) 33 + })?; 0 34 35 + config_doc 36 + .get("constants") 37 + .and_then(|item| item.as_table()) 38 + .into_iter() 39 + .flat_map(|constants| constants.iter()) 40 + .try_for_each(|(name, constant_value)| -> miette::Result<()> { 41 + let kind = &constant_value["type"]; 42 + let kind = kind.as_str().ok_or_else(|| { 43 + miette!( 44 + "{} is not a string value. Actual type: {}", 45 + name, 46 + kind.type_name(), 47 + ) 48 + })?; 49 + let value = &constant_value["value"]; 50 + let value = value.as_value().ok_or_else(|| { 51 + miette!( 52 + "{} is not a value. Actual type: {}", 53 + name, 54 + value.type_name(), 55 + ) 56 + })?; 57 58 + let constant_output = format!( 59 + "pub const {}: {} = {};\n", 60 + name, 61 + kind, 62 + value.clone().decorated("", "") 63 + ); 64 + output.push_str(&constant_output); 65 + Ok(()) 66 + })?; 67 68 + Ok(output) 69 } 70 71 #[cfg(test)] ··· 76 77 #[test] 78 fn it_parses_config() -> Result<()> { 79 + let input = r#"[constants] 80 + FIRST = { type = "u8", value = 2 } 81 + VALUE = { type = "f32", value = 42.0 } 82 + [statics] 83 + EXAMPLE = "thing" 84 + "#; 0 85 let expected = r#"pub static EXAMPLE: &str = "thing"; 86 pub const FIRST: u8 = 2; 87 + pub const VALUE: f32 = 42.0; 88 "#; 89 90 let output = parse_config(input)?; ··· 96 97 #[test] 98 fn it_handles_only_statics() -> Result<()> { 99 + let input = r#"[statics] 100 + EXAMPLE = "thing" 101 + "#; 102 103 let expected = "pub static EXAMPLE: &str = \"thing\";\n"; 104 ··· 111 112 #[test] 113 fn it_handles_only_constants() -> Result<()> { 114 + let input = r#"[constants] 115 + FIRST = { type = "u8", value = 42 } 116 + "#; 117 118 let expected = "pub const FIRST: u8 = 42;\n"; 119 ··· 126 127 #[test] 128 fn it_handles_empty_config() -> Result<()> { 129 + let input = r#"[statics] 130 + [constants]"#; 131 + 132 + let expected = ""; 133 + 134 + let output = parse_config(input)?; 135 + 136 + assert_eq!(&output, expected); 137 + 138 + let input = ""; 139 140 let expected = ""; 141 ··· 148 149 #[test] 150 fn it_outputs_to_file() -> Result<()> { 151 + let input = r#"[constants] 152 + FIRST = { type = "u8", value = 2 } 153 + VALUE = { type = "u64", value = 42 } 154 + [statics] 155 + EXAMPLE = "thing" 156 + "#; 0 157 let expected = r#"pub static EXAMPLE: &str = "thing"; 158 pub const FIRST: u8 = 2; 159 pub const VALUE: u64 = 42;