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|
use atuin_common::record::DecryptedData;
use eyre::{Result, bail, ensure};
use uuid::Uuid;
use rmp::{
decode::{self, Bytes},
encode,
};
use typed_builder::TypedBuilder;
pub const SCRIPT_VERSION: &str = "v0";
pub const SCRIPT_TAG: &str = "script";
pub const SCRIPT_LEN: usize = 20000; // 20kb max total len
#[derive(Debug, Clone, PartialEq, Eq, TypedBuilder)]
/// A script is a set of commands that can be run, with the specified shebang
pub struct Script {
/// The id of the script
#[builder(default = uuid::Uuid::new_v4())]
pub id: Uuid,
/// The name of the script
pub name: String,
/// The description of the script
#[builder(default = String::new())]
pub description: String,
/// The interpreter of the script
#[builder(default = String::new())]
pub shebang: String,
/// The tags of the script
#[builder(default = Vec::new())]
pub tags: Vec<String>,
/// The script content
pub script: String,
}
impl Script {
pub fn serialize(&self) -> Result<DecryptedData> {
// sort the tags first, to ensure consistent ordering
let mut tags = self.tags.clone();
tags.sort();
let mut output = vec![];
encode::write_array_len(&mut output, 6)?;
encode::write_str(&mut output, &self.id.to_string())?;
encode::write_str(&mut output, &self.name)?;
encode::write_str(&mut output, &self.description)?;
encode::write_str(&mut output, &self.shebang)?;
encode::write_array_len(&mut output, self.tags.len() as u32)?;
for tag in &tags {
encode::write_str(&mut output, tag)?;
}
encode::write_str(&mut output, &self.script)?;
Ok(DecryptedData(output))
}
pub fn deserialize(bytes: &[u8]) -> Result<Self> {
let mut bytes = decode::Bytes::new(bytes);
let nfields = decode::read_array_len(&mut bytes).unwrap();
ensure!(nfields == 6, "too many entries in v0 script record");
let bytes = bytes.remaining_slice();
let (id, bytes) = decode::read_str_from_slice(bytes).unwrap();
let (name, bytes) = decode::read_str_from_slice(bytes).unwrap();
let (description, bytes) = decode::read_str_from_slice(bytes).unwrap();
let (shebang, bytes) = decode::read_str_from_slice(bytes).unwrap();
let mut bytes = Bytes::new(bytes);
let tags_len = decode::read_array_len(&mut bytes).unwrap();
let mut bytes = bytes.remaining_slice();
let mut tags = Vec::new();
for _ in 0..tags_len {
let (tag, remaining) = decode::read_str_from_slice(bytes).unwrap();
tags.push(tag.to_owned());
bytes = remaining;
}
let (script, bytes) = decode::read_str_from_slice(bytes).unwrap();
if !bytes.is_empty() {
bail!("trailing bytes in encoded script record. malformed")
}
Ok(Script {
id: Uuid::parse_str(id).unwrap(),
name: name.to_owned(),
description: description.to_owned(),
shebang: shebang.to_owned(),
tags,
script: script.to_owned(),
})
}
}
#[cfg(test)]
mod tests {
use super::*;
#[test]
fn test_serialize() {
let script = Script {
id: uuid::Uuid::parse_str("0195c825a35f7982bdb016168881cbc6").unwrap(),
name: "test".to_string(),
description: "test".to_string(),
shebang: "test".to_string(),
tags: vec!["test".to_string()],
script: "test".to_string(),
};
let serialized = script.serialize().unwrap();
assert_eq!(
serialized.0,
vec![
150, 217, 36, 48, 49, 57, 53, 99, 56, 50, 53, 45, 97, 51, 53, 102, 45, 55, 57, 56,
50, 45, 98, 100, 98, 48, 45, 49, 54, 49, 54, 56, 56, 56, 49, 99, 98, 99, 54, 164,
116, 101, 115, 116, 164, 116, 101, 115, 116, 164, 116, 101, 115, 116, 145, 164,
116, 101, 115, 116, 164, 116, 101, 115, 116
]
);
}
#[test]
fn test_serialize_deserialize() {
let script = Script {
id: uuid::Uuid::new_v4(),
name: "test".to_string(),
description: "test".to_string(),
shebang: "test".to_string(),
tags: vec!["test".to_string()],
script: "test".to_string(),
};
let serialized = script.serialize().unwrap();
let deserialized = Script::deserialize(&serialized.0).unwrap();
assert_eq!(script, deserialized);
}
}
|
