use anyhow::{Context, anyhow};use gix::{diff::blob::ResourceKind, filter::plumbing::driver::apply::Delay, revision::Spec}; use crate::repository::revision::resolve::{BlobFormat, TreeMode}; pub fn display_object( repo: &gix::Repository, spec: Spec<'_>, tree_mode: TreeMode, cache: Option<(BlobFormat, &mut gix::diff::blob::Platform)>, mut out: impl std::io::Write,) -> anyhow::Result<()> { let id = spec.single().context("rev-spec must resolve to a single object")?; let header = id.header()?; match header.kind() { gix::object::Kind::Tree if matches!(tree_mode, TreeMode::Pretty) => { for entry in id.object()?.into_tree().iter() { writeln!(out, "{}", entry?)?; } } gix::object::Kind::Blob if cache.is_some() && spec.path_and_mode().is_some() => { let (path, mode) = spec.path_and_mode().expect("is present"); match cache.expect("is some") { (BlobFormat::Git, _) => unreachable!("no need for a cache when querying object db"), (BlobFormat::Worktree, cache) => { let platform = cache.attr_stack.at_entry(path, Some(mode.into()), &repo.objects)?; let object = id.object()?; let mut converted = cache.filter.worktree_filter.convert_to_worktree( &object.data, path, &mut |_path, attrs| { let _ = platform.matching_attributes(attrs); }, Delay::Forbid, )?; std::io::copy(&mut converted, &mut out)?; } (BlobFormat::Diff | BlobFormat::DiffOrGit, cache) => { cache.set_resource(id.detach(), mode.kind(), path, ResourceKind::OldOrSource, &repo.objects)?; let resource = cache.resource(ResourceKind::OldOrSource).expect("just set"); let data = resource .data .as_slice() .ok_or_else(|| anyhow!("Binary data at {path} cannot be diffed"))?; out.write_all(data)?; } } } _ => out.write_all(&id.object()?.data)?, } Ok(())} pub(super) mod function { use crate::repository::revision::resolve::TreeMode; pub fn cat(repo: gix::Repository, revspec: &str, out: impl std::io::Write) -> anyhow::Result<()> { super::display_object(&repo, repo.rev_parse(revspec)?, TreeMode::Pretty, None, out)?; Ok(()) }}
use anyhow::{Context, anyhow};
use gix::{diff::blob::ResourceKind, filter::plumbing::driver::apply::Delay, revision::Spec};
use crate::repository::revision::resolve::{BlobFormat, TreeMode};
pub fn display_object(
repo: &gix::Repository,
spec: Spec<'_>,
tree_mode: TreeMode,
cache: Option<(BlobFormat, &mut gix::diff::blob::Platform)>,
mut out: impl std::io::Write,
) -> anyhow::Result<()> {
let id = spec.single().context("rev-spec must resolve to a single object")?;
let header = id.header()?;
match header.kind() {
gix::object::Kind::Tree if matches!(tree_mode, TreeMode::Pretty) => {
for entry in id.object()?.into_tree().iter() {
writeln!(out, "{}", entry?)?;
}
}
gix::object::Kind::Blob if cache.is_some() && spec.path_and_mode().is_some() => {
let (path, mode) = spec.path_and_mode().expect("is present");
match cache.expect("is some") {
(BlobFormat::Git, _) => unreachable!("no need for a cache when querying object db"),
(BlobFormat::Worktree, cache) => {
let platform = cache.attr_stack.at_entry(path, Some(mode.into()), &repo.objects)?;
let object = id.object()?;
let mut converted = cache.filter.worktree_filter.convert_to_worktree(
&object.data,
path,
&mut |_path, attrs| {
let _ = platform.matching_attributes(attrs);
},
Delay::Forbid,
)?;
std::io::copy(&mut converted, &mut out)?;
}
(BlobFormat::Diff | BlobFormat::DiffOrGit, cache) => {
cache.set_resource(id.detach(), mode.kind(), path, ResourceKind::OldOrSource, &repo.objects)?;
let resource = cache.resource(ResourceKind::OldOrSource).expect("just set");
let data = resource
.data
.as_slice()
.ok_or_else(|| anyhow!("Binary data at {path} cannot be diffed"))?;
out.write_all(data)?;
}
}
}
_ => out.write_all(&id.object()?.data)?,
}
Ok(())
}
pub(super) mod function {
use crate::repository::revision::resolve::TreeMode;
pub fn cat(repo: gix::Repository, revspec: &str, out: impl std::io::Write) -> anyhow::Result<()> {
super::display_object(&repo, repo.rev_parse(revspec)?, TreeMode::Pretty, None, out)?;
Ok(())
}
}