hldr/
lib.rs

1pub mod analyzer;
2pub mod error;
3pub mod lexer;
4pub mod loader;
5pub mod parser;
6mod position;
7
8use serde::Deserialize;
9use std::fs;
10use std::path::PathBuf;
11
12use error::HldrError;
13pub use position::Position;
14
15#[derive(Clone, Default, Debug, Deserialize)]
16pub struct Options {
17    #[serde(default)]
18    pub commit: bool,
19
20    #[serde(default = "default_data_file")]
21    pub data_file: PathBuf,
22
23    #[serde(default)]
24    pub database_conn: String,
25}
26
27impl Options {
28    pub fn new(filepath: &PathBuf) -> Result<Option<Self>, String> {
29        if !filepath.exists() {
30            return Ok(None);
31        }
32
33        if !filepath.is_file() {
34            return Err(format!("{} is not a file", filepath.display()));
35        }
36
37        let contents = fs::read_to_string(filepath).map_err(|e| e.to_string())?;
38
39        Ok(Some(toml::from_str(&contents).map_err(|e| e.to_string())?))
40    }
41}
42
43fn default_data_file() -> PathBuf {
44    PathBuf::from("place.hldr")
45}
46
47pub fn place(options: &Options) -> Result<(), HldrError> {
48    let input = fs::read_to_string(&options.data_file)?;
49    let tokens = lexer::tokenize(input.chars())?;
50    let parse_tree = parser::parse(tokens.into_iter())?;
51    let parse_tree = analyzer::analyze(parse_tree)?;
52    let mut client = loader::new_client(&options.database_conn)?;
53    let mut transaction = client.transaction()?;
54
55    loader::load(&mut transaction, parse_tree)?;
56
57    if options.commit {
58        println!("Committing changes");
59        transaction.commit()?;
60    } else {
61        println!("Rolling back changes, pass `--commit` to apply")
62    }
63
64    Ok(())
65}
66
67#[cfg(test)]
68mod root_tests {
69    /*
70        use std::env;
71
72        use super::{place, Options, PathBuf};
73
74        #[test]
75        fn it_works() {
76            let options = Options {
77                data_file: PathBuf::from("test/fixtures/place.hldr".to_owned()),
78                database_conn: env::var("HLDR_TEST_DATABASE_URL").unwrap().clone(),
79            };
80
81            place(&options, false).unwrap();
82        }
83    */
84}
hldr/lib.rs

hldr/
lib.rs
