diff options
author | hozan23 <hozan23@proton.me> | 2023-11-09 11:38:19 +0300 |
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committer | hozan23 <hozan23@proton.me> | 2023-11-09 11:38:19 +0300 |
commit | 849d827486c75b2ab223d7b0e638dbb5b74d4d1d (patch) | |
tree | 41cd3babc37147ec4a40cab8ce8ae31c91cce33b /core/src/utils | |
parent | de1354525895ffbad18f90a5246fd65157f7449e (diff) |
rename crates
Diffstat (limited to 'core/src/utils')
-rw-r--r-- | core/src/utils/decode.rs | 10 | ||||
-rw-r--r-- | core/src/utils/encode.rs | 15 | ||||
-rw-r--r-- | core/src/utils/mod.rs | 19 | ||||
-rw-r--r-- | core/src/utils/path.rs | 39 |
4 files changed, 83 insertions, 0 deletions
diff --git a/core/src/utils/decode.rs b/core/src/utils/decode.rs new file mode 100644 index 0000000..a8a6522 --- /dev/null +++ b/core/src/utils/decode.rs @@ -0,0 +1,10 @@ +use bincode::Decode; + +use crate::Result; + +/// Decodes a given type `T` from the given slice. returns the decoded value +/// along with the number of bytes read. +pub fn decode<T: Decode>(src: &[u8]) -> Result<(T, usize)> { + let (result, bytes_read) = bincode::decode_from_slice(src, bincode::config::standard())?; + Ok((result, bytes_read)) +} diff --git a/core/src/utils/encode.rs b/core/src/utils/encode.rs new file mode 100644 index 0000000..7d1061b --- /dev/null +++ b/core/src/utils/encode.rs @@ -0,0 +1,15 @@ +use bincode::Encode; + +use crate::Result; + +/// Encode the given type `T` into a `Vec<u8>`. +pub fn encode<T: Encode>(msg: &T) -> Result<Vec<u8>> { + let vec = bincode::encode_to_vec(msg, bincode::config::standard())?; + Ok(vec) +} + +/// Encode the given type `T` into the given slice.. +pub fn encode_into_slice<T: Encode>(msg: &T, dst: &mut [u8]) -> Result<()> { + bincode::encode_into_slice(msg, dst, bincode::config::standard())?; + Ok(()) +} diff --git a/core/src/utils/mod.rs b/core/src/utils/mod.rs new file mode 100644 index 0000000..a3c3f50 --- /dev/null +++ b/core/src/utils/mod.rs @@ -0,0 +1,19 @@ +mod decode; +mod encode; +mod path; + +pub use decode::decode; +pub use encode::{encode, encode_into_slice}; +pub use path::{home_dir, tilde_expand}; + +use rand::{rngs::OsRng, Rng}; + +/// Generates and returns a random u32 using `rand::rngs::OsRng`. +pub fn random_32() -> u32 { + OsRng.gen() +} + +/// Generates and returns a random u16 using `rand::rngs::OsRng`. +pub fn random_16() -> u16 { + OsRng.gen() +} diff --git a/core/src/utils/path.rs b/core/src/utils/path.rs new file mode 100644 index 0000000..2cd900a --- /dev/null +++ b/core/src/utils/path.rs @@ -0,0 +1,39 @@ +use std::path::PathBuf; + +use crate::{error::Error, Result}; + +/// Returns the user's home directory as a `PathBuf`. +#[allow(dead_code)] +pub fn home_dir() -> Result<PathBuf> { + dirs::home_dir().ok_or(Error::PathNotFound("Home dir not found")) +} + +/// Expands a tilde (~) in a path and returns the expanded `PathBuf`. +#[allow(dead_code)] +pub fn tilde_expand(path: &str) -> Result<PathBuf> { + match path { + "~" => home_dir(), + p if p.starts_with("~/") => Ok(home_dir()?.join(&path[2..])), + _ => Ok(PathBuf::from(path)), + } +} + +#[cfg(test)] +mod tests { + use super::*; + + #[test] + fn test_tilde_expand() { + let path = "~/src"; + let expanded_path = dirs::home_dir().unwrap().join("src"); + assert_eq!(tilde_expand(path).unwrap(), expanded_path); + + let path = "~"; + let expanded_path = dirs::home_dir().unwrap(); + assert_eq!(tilde_expand(path).unwrap(), expanded_path); + + let path = ""; + let expanded_path = PathBuf::from(""); + assert_eq!(tilde_expand(path).unwrap(), expanded_path); + } +} |