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use std::io;
use bstr::ByteSlice;
use crate::{encode, encode::NL, Commit, CommitRef, Kind};
impl crate::WriteTo for Commit {
/// Serializes this instance to `out` in the git serialization format.
fn write_to(&self, mut out: &mut dyn io::Write) -> io::Result<()> {
encode::trusted_header_id(b"tree", &self.tree, &mut out)?;
for parent in &self.parents {
encode::trusted_header_id(b"parent", parent, &mut out)?;
}
encode::trusted_header_signature(b"author", &self.author.to_ref(), &mut out)?;
encode::trusted_header_signature(b"committer", &self.committer.to_ref(), &mut out)?;
if let Some(encoding) = self.encoding.as_ref() {
encode::header_field(b"encoding", encoding, &mut out)?;
}
for (name, value) in &self.extra_headers {
encode::header_field_multi_line(name, value, &mut out)?;
}
out.write_all(NL)?;
out.write_all(&self.message)
}
fn kind(&self) -> Kind {
Kind::Commit
}
fn size(&self) -> u64 {
let hash_in_hex = self.tree.kind().len_in_hex();
(b"tree".len() + 1 /*space*/ + hash_in_hex + 1 /* nl */
+ self.parents.iter().count() * (b"parent".len() + 1 + hash_in_hex + 1)
+ b"author".len() + 1 /* space */ + self.author.size() + 1 /* nl */
+ b"committer".len() + 1 /* space */ + self.committer.size() + 1 /* nl */
+ self
.encoding
.as_ref()
.map_or(0, |e| b"encoding".len() + 1 /* space */ + e.len() + 1 /* nl */)
+ self
.extra_headers
.iter()
.map(|(name, value)| {
// each header *value* is preceded by a space and followed by a newline
name.len() + value.split_str("\n").map(|s| s.len() + 2).sum::<usize>()
})
.sum::<usize>()
+ 1 /* nl */
+ self.message.len()) as u64
}
}
impl<'a> crate::WriteTo for CommitRef<'a> {
/// Serializes this instance to `out` in the git serialization format.
fn write_to(&self, mut out: &mut dyn io::Write) -> io::Result<()> {
encode::trusted_header_id(b"tree", &self.tree(), &mut out)?;
for parent in self.parents() {
encode::trusted_header_id(b"parent", &parent, &mut out)?;
}
encode::trusted_header_signature(b"author", &self.author, &mut out)?;
encode::trusted_header_signature(b"committer", &self.committer, &mut out)?;
if let Some(encoding) = self.encoding.as_ref() {
encode::header_field(b"encoding", encoding, &mut out)?;
}
for (name, value) in &self.extra_headers {
encode::header_field_multi_line(name, value, &mut out)?;
}
out.write_all(NL)?;
out.write_all(self.message)
}
fn kind(&self) -> Kind {
Kind::Commit
}
fn size(&self) -> u64 {
let hash_in_hex = self.tree().kind().len_in_hex();
(b"tree".len() + 1 /* space */ + hash_in_hex + 1 /* nl */
+ self.parents.iter().count() * (b"parent".len() + 1 /* space */ + hash_in_hex + 1 /* nl */)
+ b"author".len() + 1 /* space */ + self.author.size() + 1 /* nl */
+ b"committer".len() + 1 /* space */ + self.committer.size() + 1 /* nl */
+ self
.encoding
.as_ref()
.map_or(0, |e| b"encoding".len() + 1 /* space */ + e.len() + 1 /* nl */)
+ self
.extra_headers
.iter()
.map(|(name, value)| {
// each header *value* is preceded by a space and followed by a newline
name.len() + value.split_str("\n").map(|s| s.len() + 2).sum::<usize>()
})
.sum::<usize>()
+ 1 /* nl */
+ self.message.len()) as u64
}
}
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