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use std::io;
use bstr::BStr;
use quick_error::quick_error;
use crate::{encode, encode::NL, Kind, Tag, TagRef};
quick_error! {
#[derive(Debug)]
#[allow(missing_docs)]
pub enum Error {
StartsWithDash {
display("Tags must not start with a dash: '-'")
}
InvalidRefName(err: git_validate::tag::name::Error) {
display("The tag name was no valid reference name")
from()
source(err)
}
}
}
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)?;
}
if !self.message.is_empty() {
out.write_all(NL)?;
out.write_all(&self.message)?;
}
if let Some(ref message) = self.pgp_signature {
out.write_all(NL)?;
out.write_all(message)?;
}
Ok(())
}
fn kind(&self) -> Kind {
Kind::Tag
}
}
impl<'a> crate::WriteTo for TagRef<'a> {
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)?, &mut out)?;
if let Some(tagger) = &self.tagger {
encode::trusted_header_signature(b"tagger", tagger, &mut out)?;
}
if !self.message.is_empty() {
out.write_all(NL)?;
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 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;