c77d2eb73f
This PR increases the length of a shortened Git SHA from 6 to 7 characters. This matches what GitHub uses. I also took the opportunity to factor out a common method for computing a short SHA so that we have a single source of truth for the length that we're using. Release Notes: - Increased the short commit SHA length used by git blame from 6 to 7 characters.
116 lines
2.7 KiB
Rust
116 lines
2.7 KiB
Rust
mod hosting_provider;
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use anyhow::{anyhow, Context, Result};
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use serde::{Deserialize, Serialize};
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use std::ffi::OsStr;
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use std::fmt;
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use std::str::FromStr;
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pub use git2 as libgit;
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pub use lazy_static::lazy_static;
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pub use crate::hosting_provider::*;
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pub mod blame;
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pub mod commit;
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pub mod diff;
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pub mod repository;
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lazy_static! {
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pub static ref DOT_GIT: &'static OsStr = OsStr::new(".git");
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pub static ref GITIGNORE: &'static OsStr = OsStr::new(".gitignore");
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}
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#[derive(Clone, Copy, Eq, Hash, PartialEq)]
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pub struct Oid(libgit::Oid);
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impl Oid {
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pub fn from_bytes(bytes: &[u8]) -> Result<Self> {
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let oid = libgit::Oid::from_bytes(bytes).context("failed to parse bytes into git oid")?;
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Ok(Self(oid))
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}
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pub fn as_bytes(&self) -> &[u8] {
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self.0.as_bytes()
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}
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pub(crate) fn is_zero(&self) -> bool {
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self.0.is_zero()
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}
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/// Returns this [`Oid`] as a short SHA.
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pub fn display_short(&self) -> String {
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self.to_string().chars().take(7).collect()
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}
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}
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impl FromStr for Oid {
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type Err = anyhow::Error;
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fn from_str(s: &str) -> std::prelude::v1::Result<Self, Self::Err> {
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libgit::Oid::from_str(s)
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.map_err(|error| anyhow!("failed to parse git oid: {}", error))
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.map(|oid| Self(oid))
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}
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}
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impl fmt::Debug for Oid {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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fmt::Display::fmt(self, f)
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}
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}
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impl fmt::Display for Oid {
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fn fmt(&self, f: &mut fmt::Formatter<'_>) -> fmt::Result {
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self.0.fmt(f)
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}
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}
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impl Serialize for Oid {
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fn serialize<S>(&self, serializer: S) -> std::prelude::v1::Result<S::Ok, S::Error>
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where
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S: serde::Serializer,
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{
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serializer.serialize_str(&self.0.to_string())
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}
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}
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impl<'de> Deserialize<'de> for Oid {
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fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
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where
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D: serde::Deserializer<'de>,
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{
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let s = String::deserialize(deserializer)?;
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s.parse::<Oid>().map_err(serde::de::Error::custom)
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}
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}
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impl Default for Oid {
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fn default() -> Self {
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Self(libgit::Oid::zero())
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}
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}
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impl From<Oid> for u32 {
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fn from(oid: Oid) -> Self {
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let bytes = oid.0.as_bytes();
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debug_assert!(bytes.len() > 4);
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let mut u32_bytes: [u8; 4] = [0; 4];
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u32_bytes.copy_from_slice(&bytes[..4]);
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u32::from_ne_bytes(u32_bytes)
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}
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}
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impl From<Oid> for usize {
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fn from(oid: Oid) -> Self {
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let bytes = oid.0.as_bytes();
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debug_assert!(bytes.len() > 8);
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let mut u64_bytes: [u8; 8] = [0; 8];
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u64_bytes.copy_from_slice(&bytes[..8]);
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u64::from_ne_bytes(u64_bytes) as usize
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}
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}
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