use std::io; use bstr::BStr; use crate::{encode, encode::NL, Kind, Tag, TagRef}; /// An Error used in [`Tag::write_to()`][crate::WriteTo::write_to()].#[derive(Debug, thiserror::Error)]#[allow(missing_docs)]pub enum Error { #[error("Tags must not start with a dash: '-'")] StartsWithDash, #[error("The tag name was no valid reference name")] InvalidRefName(#[from] git_validate::tag::name::Error),} impl From<Error> for io::Error { fn from(err: Error) -> Self { io::Error::new(io::ErrorKind::Other, err) }} impl crate::WriteTo for Tag { fn write_to(&self, mut out: impl io::Write) -> io::Result<()> { encode::trusted_header_id(b"object", &self.target, &mut out)?; encode::trusted_header_field(b"type", self.target_kind.as_bytes(), &mut out)?; encode::header_field(b"tag", validated_name(self.name.as_ref())?, &mut out)?; if let Some(tagger) = &self.tagger { encode::trusted_header_signature(b"tagger", &tagger.to_ref(), &mut out)?; } out.write_all(NL)?; if !self.message.is_empty() { out.write_all(self.message.as_ref())?; } if let Some(message) = &self.pgp_signature { out.write_all(NL)?; out.write_all(message.as_ref())?; } Ok(()) } fn kind(&self) -> Kind { Kind::Tag } fn size(&self) -> usize { b"object".len() + 1 /* space */ + self.target.kind().len_in_hex() + 1 /* nl */ + b"type".len() + 1 /* space */ + self.target_kind.as_bytes().len() + 1 /* nl */ + b"tag".len() + 1 /* space */ + self.name.len() + 1 /* nl */ + self .tagger .as_ref() .map(|t| b"tagger".len() + 1 /* space */ + t.size() + 1 /* nl */) .unwrap_or(0) + 1 /* nl */ + self.message.len() + self.pgp_signature.as_ref().map(|m| 1 /* nl */ + m.len()).unwrap_or(0) }} impl<'a> crate::WriteTo for TagRef<'a> { fn write_to(&self, mut out: impl io::Write) -> io::Result<()> { encode::trusted_header_field(b"object", self.target, &mut out)?; encode::trusted_header_field(b"type", self.target_kind.as_bytes(), &mut out)?; encode::header_field(b"tag", validated_name(self.name)?, &mut out)?; if let Some(tagger) = &self.tagger { encode::trusted_header_signature(b"tagger", tagger, &mut out)?; } out.write_all(NL)?; if !self.message.is_empty() { out.write_all(self.message)?; } if let Some(message) = self.pgp_signature { out.write_all(NL)?; out.write_all(message)?; } Ok(()) } fn kind(&self) -> Kind { Kind::Tag } fn size(&self) -> usize { b"object".len() + 1 /* space */ + self.target().kind().len_in_hex() + 1 /* nl */ + b"type".len() + 1 /* space */ + self.target_kind.as_bytes().len() + 1 /* nl */ + b"tag".len() + 1 /* space */ + self.name.len() + 1 /* nl */ + self .tagger .as_ref() .map(|t| b"tagger".len() + 1 /* space */ + t.size() + 1 /* nl */) .unwrap_or(0) + 1 /* nl */ + self.message.len() + self.pgp_signature.as_ref().map(|m| 1 /* nl */ + m.len()).unwrap_or(0) }} fn validated_name(name: &BStr) -> Result<&BStr, Error> { git_validate::tag::name(name)?; if name[0] == b'-' { return Err(Error::StartsWithDash); } Ok(name)} #[cfg(test)]mod tests;
use std::io;
use bstr::BStr;
use crate::{encode, encode::NL, Kind, Tag, TagRef};
/// An Error used in [`Tag::write_to()`][crate::WriteTo::write_to()].
#[derive(Debug, thiserror::Error)]
#[allow(missing_docs)]
pub enum Error {
#[error("Tags must not start with a dash: '-'")]
StartsWithDash,
#[error("The tag name was no valid reference name")]
InvalidRefName(#[from] git_validate::tag::name::Error),
}
impl From<Error> for io::Error {
fn from(err: Error) -> Self {
io::Error::new(io::ErrorKind::Other, err)
}
}
impl crate::WriteTo for Tag {
fn write_to(&self, mut out: impl io::Write) -> io::Result<()> {
encode::trusted_header_id(b"object", &self.target, &mut out)?;
encode::trusted_header_field(b"type", self.target_kind.as_bytes(), &mut out)?;
encode::header_field(b"tag", validated_name(self.name.as_ref())?, &mut out)?;
if let Some(tagger) = &self.tagger {
encode::trusted_header_signature(b"tagger", &tagger.to_ref(), &mut out)?;
}
out.write_all(NL)?;
if !self.message.is_empty() {
out.write_all(self.message.as_ref())?;
}
if let Some(message) = &self.pgp_signature {
out.write_all(NL)?;
out.write_all(message.as_ref())?;
}
Ok(())
}
fn kind(&self) -> Kind {
Kind::Tag
}
fn size(&self) -> usize {
b"object".len() + 1 /* space */ + self.target.kind().len_in_hex() + 1 /* nl */
+ b"type".len() + 1 /* space */ + self.target_kind.as_bytes().len() + 1 /* nl */
+ b"tag".len() + 1 /* space */ + self.name.len() + 1 /* nl */
+ self
.tagger
.as_ref()
.map(|t| b"tagger".len() + 1 /* space */ + t.size() + 1 /* nl */)
.unwrap_or(0)
+ 1 /* nl */ + self.message.len()
+ self.pgp_signature.as_ref().map(|m| 1 /* nl */ + m.len()).unwrap_or(0)
}
}
impl<'a> crate::WriteTo for TagRef<'a> {
fn write_to(&self, mut out: impl io::Write) -> io::Result<()> {
encode::trusted_header_field(b"object", self.target, &mut out)?;
encode::trusted_header_field(b"type", self.target_kind.as_bytes(), &mut out)?;
encode::header_field(b"tag", validated_name(self.name)?, &mut out)?;
if let Some(tagger) = &self.tagger {
encode::trusted_header_signature(b"tagger", tagger, &mut out)?;
}
out.write_all(NL)?;
if !self.message.is_empty() {
out.write_all(self.message)?;
}
if let Some(message) = self.pgp_signature {
out.write_all(NL)?;
out.write_all(message)?;
}
Ok(())
}
fn kind(&self) -> Kind {
Kind::Tag
}
fn size(&self) -> usize {
b"object".len() + 1 /* space */ + self.target().kind().len_in_hex() + 1 /* nl */
+ b"type".len() + 1 /* space */ + self.target_kind.as_bytes().len() + 1 /* nl */
+ b"tag".len() + 1 /* space */ + self.name.len() + 1 /* nl */
+ self
.tagger
.as_ref()
.map(|t| b"tagger".len() + 1 /* space */ + t.size() + 1 /* nl */)
.unwrap_or(0)
+ 1 /* nl */ + self.message.len()
+ self.pgp_signature.as_ref().map(|m| 1 /* nl */ + m.len()).unwrap_or(0)
}
}
fn validated_name(name: &BStr) -> Result<&BStr, Error> {
git_validate::tag::name(name)?;
if name[0] == b'-' {
return Err(Error::StartsWithDash);
}
Ok(name)
}
#[cfg(test)]
mod tests;