nu_command/stor/
open.rs

1use crate::database::{MEMORY_DB, SQLiteDatabase};
2use nu_engine::command_prelude::*;
3use nu_protocol::Signals;
4
5#[derive(Clone)]
6pub struct StorOpen;
7
8impl Command for StorOpen {
9    fn name(&self) -> &str {
10        "stor open"
11    }
12
13    fn signature(&self) -> Signature {
14        Signature::build("stor open")
15            .input_output_types(vec![(Type::Nothing, Type::Custom("SQLiteDatabase".into()))])
16            .allow_variants_without_examples(true)
17            .category(Category::Database)
18    }
19
20    fn description(&self) -> &str {
21        "Opens the in-memory sqlite database."
22    }
23
24    fn search_terms(&self) -> Vec<&str> {
25        vec!["sqlite", "storing", "access"]
26    }
27
28    fn examples(&self) -> Vec<Example<'_>> {
29        vec![Example {
30            description: "Open the in-memory sqlite database",
31            example: "stor open",
32            result: None,
33        }]
34    }
35
36    fn run(
37        &self,
38        _engine_state: &EngineState,
39        _stack: &mut Stack,
40        call: &Call,
41        _input: PipelineData,
42    ) -> Result<PipelineData, ShellError> {
43        // eprintln!("Initializing nudb");
44        // eprintln!("Here's some things to try:");
45        // eprintln!("* stor open | schema | table -e");
46        // eprintln!("* stor open | query db 'insert into nudb (bool1,int1,float1,str1,datetime1) values (2,200,2.0,'str2','1969-04-17T06:00:00-05:00')'");
47        // eprintln!("* stor open | query db 'select * from nudb'");
48        // eprintln!("Now imagine all those examples happening as commands, without sql, in our normal nushell pipelines\n");
49
50        // TODO: Think about adding the following functionality
51        // * stor open --table-name my_table_name
52        //   It returns the output of `select * from my_table_name`
53
54        // Just create an empty database with MEMORY_DB and nothing else
55        let db = Box::new(SQLiteDatabase::new(
56            std::path::Path::new(MEMORY_DB),
57            Signals::empty(),
58        ));
59
60        // dbg!(db.clone());
61        Ok(db.into_value(call.head).into_pipeline_data())
62    }
63}
64
65#[cfg(test)]
66mod test {
67    use super::*;
68    use nu_test_support::Result;
69    use nu_test_support::prelude::*;
70
71    #[test]
72    fn test_examples() -> Result {
73        test().examples(StorOpen)
74    }
75
76    #[test]
77    #[exp(nu_experimental::ENFORCE_RUNTIME_ANNOTATIONS)]
78    fn correct_return_ty() -> Result {
79        let () = test().run("let db = stor open")?;
80        Ok(())
81    }
82}
nu_command/stor/open.rs

nu_command/stor/
open.rs
