feat(core): implement Git repository operations with gRPC services

- Add advertise_refs functionality for Git protocol communication
- Implement archive service with TAR/ZIP format support and streaming
- Create blame service for Git file annotation with line tracking
- Add branch management including create, delete, rename and compare operations
- Implement merge checking with conflict detection and fast-forward handling
- Add cherry-pick functionality for applying commits between branches
- Integrate gix library for Git repository operations and object handling
- Add comprehensive test suite covering all Git operations
- Implement proper error handling and repository validation
- Add pagination support for large result sets
- Create protobuf definitions for all Git operations and data structures
- Add build system for gRPC code generation and dependency management
This commit is contained in:
zhenyi
2026-06-04 13:05:38 +08:00
commit dcb0fb74c5
98 changed files with 20569 additions and 0 deletions
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use crate::bare::GitBare;
use crate::diff::get_diff_stats::{diff_stats_for_range, push_diff_options};
use crate::error::{GitError, GitResult};
use crate::paginate;
use crate::pb::diff_file::ChangeType;
use crate::pb::{DiffFile, GetDiffRequest, GetDiffResponse};
#[derive(Debug, Clone)]
struct NameStatusEntry {
status: char,
old_path: String,
new_path: String,
similarity: f64,
}
#[derive(Debug, Clone, Default)]
struct TreeMeta {
oid_hex: String,
mode: u32,
}
impl GitBare {
pub fn get_diff(&self, request: GetDiffRequest) -> GitResult<GetDiffResponse> {
let base = match request.base.and_then(|s| s.selector) {
Some(crate::pb::object_selector::Selector::Oid(oid)) => oid.hex,
Some(crate::pb::object_selector::Selector::Revision(name)) => name.revision,
None => "HEAD".into(),
};
let head = match request.head.and_then(|s| s.selector) {
Some(crate::pb::object_selector::Selector::Oid(oid)) => oid.hex,
Some(crate::pb::object_selector::Selector::Revision(name)) => name.revision,
None => "HEAD".into(),
};
let options = request.options.as_ref();
let entries = self.diff_name_status(&base, &head, options)?;
let max_files = options.and_then(|o| (o.max_files > 0).then_some(o.max_files as usize));
let overflow = max_files.is_some_and(|max| entries.len() > max);
let entries_to_build =
max_files.map_or(entries.as_slice(), |max| &entries[..entries.len().min(max)]);
let mut files = Vec::with_capacity(entries_to_build.len());
for entry in entries_to_build {
let old_meta = if !entry.old_path.is_empty() {
self.tree_meta(&base, &entry.old_path).ok().flatten()
} else {
None
};
let new_meta = if !entry.new_path.is_empty() {
self.tree_meta(&head, &entry.new_path).ok().flatten()
} else {
None
};
let (additions, deletions, binary) = self.path_numstat(&base, &head, entry)?;
let (patch, too_large) = self.path_patch(&base, &head, entry, options)?;
files.push(DiffFile {
old_path: entry.old_path.clone(),
new_path: entry.new_path.clone(),
old_oid: old_meta.as_ref().map(|m| self.oid_to_pb(&m.oid_hex)),
new_oid: new_meta.as_ref().map(|m| self.oid_to_pb(&m.oid_hex)),
old_mode: old_meta.as_ref().map(|m| m.mode).unwrap_or(0),
new_mode: new_meta.as_ref().map(|m| m.mode).unwrap_or(0),
change_type: change_type(entry.status) as i32,
binary,
too_large,
additions,
deletions,
hunks: Vec::new(),
patch,
similarity: entry.similarity,
});
}
let stats = diff_stats_for_range(self, &base, &head, options)?;
let (files, page_info) = paginate::paginate(&files, request.pagination.as_ref());
Ok(GetDiffResponse {
files,
stats: Some(stats),
page_info: Some(page_info),
overflow,
})
}
fn diff_name_status(
&self,
base: &str,
head: &str,
options: Option<&crate::pb::DiffOptions>,
) -> GitResult<Vec<NameStatusEntry>> {
let mut args = vec![
"--git-dir".to_string(),
self.bare_dir.to_string_lossy().into_owned(),
"diff".into(),
"--name-status".into(),
"-z".into(),
];
push_diff_options(&mut args, options);
args.push(base.to_string());
args.push(head.to_string());
if let Some(options) = options
&& !options.pathspec.is_empty()
{
args.push("--".into());
args.extend(options.pathspec.iter().cloned());
}
let result = duct::cmd("git", &args)
.stdout_capture()
.stderr_capture()
.unchecked()
.run()?;
if !result.status.success() {
return Err(GitError::CommandFailed {
status_code: result.status.code(),
stderr: String::from_utf8_lossy(&result.stderr).into_owned(),
});
}
let parts = result
.stdout
.split(|b| *b == 0)
.filter(|part| !part.is_empty())
.map(|part| String::from_utf8_lossy(part).into_owned())
.collect::<Vec<_>>();
let mut entries = Vec::new();
let mut idx = 0;
while idx < parts.len() {
let status_token = &parts[idx];
idx += 1;
let status = status_token.chars().next().unwrap_or('M');
let similarity = status_token
.get(1..)
.and_then(|s| s.parse::<f64>().ok())
.unwrap_or(0.0);
if matches!(status, 'R' | 'C') {
if idx + 1 >= parts.len() {
break;
}
let old_path = parts[idx].clone();
let new_path = parts[idx + 1].clone();
idx += 2;
entries.push(NameStatusEntry {
status,
old_path,
new_path,
similarity,
});
} else {
if idx >= parts.len() {
break;
}
let path = parts[idx].clone();
idx += 1;
let (old_path, new_path) = match status {
'A' => (String::new(), path),
'D' => (path, String::new()),
_ => (path.clone(), path),
};
entries.push(NameStatusEntry {
status,
old_path,
new_path,
similarity,
});
}
}
Ok(entries)
}
fn tree_meta(&self, revision: &str, path: &str) -> GitResult<Option<TreeMeta>> {
let result = duct::cmd(
"git",
[
"--git-dir",
self.bare_dir.to_string_lossy().as_ref(),
"ls-tree",
"-z",
"-l",
revision,
"--",
path,
],
)
.stdout_capture()
.stderr_capture()
.unchecked()
.run()?;
if !result.status.success() || result.stdout.is_empty() {
return Ok(None);
}
let record = result
.stdout
.split(|b| *b == 0)
.find(|part| !part.is_empty())
.map(|part| String::from_utf8_lossy(part).into_owned());
let Some(record) = record else {
return Ok(None);
};
let Some((meta, _path)) = record.split_once('\t') else {
return Ok(None);
};
let parts = meta.split_whitespace().collect::<Vec<_>>();
if parts.len() < 3 {
return Ok(None);
}
Ok(Some(TreeMeta {
mode: u32::from_str_radix(parts[0], 8).unwrap_or(0),
oid_hex: parts[2].to_string(),
}))
}
fn path_numstat(
&self,
base: &str,
head: &str,
entry: &NameStatusEntry,
) -> GitResult<(u32, u32, bool)> {
let path = if entry.new_path.is_empty() {
&entry.old_path
} else {
&entry.new_path
};
let result = duct::cmd(
"git",
[
"--git-dir",
self.bare_dir.to_string_lossy().as_ref(),
"diff",
"--numstat",
base,
head,
"--",
path,
],
)
.stdout_capture()
.stderr_capture()
.unchecked()
.run()?;
if !result.status.success() {
return Err(GitError::CommandFailed {
status_code: result.status.code(),
stderr: String::from_utf8_lossy(&result.stderr).into_owned(),
});
}
let line = String::from_utf8_lossy(&result.stdout)
.lines()
.next()
.unwrap_or_default()
.to_string();
let mut parts = line.split('\t');
let add = parts.next().unwrap_or_default();
let del = parts.next().unwrap_or_default();
let binary = add == "-" || del == "-";
Ok((add.parse().unwrap_or(0), del.parse().unwrap_or(0), binary))
}
fn path_patch(
&self,
base: &str,
head: &str,
entry: &NameStatusEntry,
options: Option<&crate::pb::DiffOptions>,
) -> GitResult<(Vec<u8>, bool)> {
let Some(options) = options else {
return Ok((Vec::new(), false));
};
if !options.include_patch {
return Ok((Vec::new(), false));
}
let path = if entry.new_path.is_empty() {
&entry.old_path
} else {
&entry.new_path
};
let context = options.context_lines.to_string();
let mut args = vec![
"--git-dir".to_string(),
self.bare_dir.to_string_lossy().into_owned(),
"diff".into(),
"--patch".into(),
format!("--unified={context}"),
];
if options.include_binary {
args.push("--binary".into());
}
push_diff_options(&mut args, Some(options));
args.push(base.to_string());
args.push(head.to_string());
args.push("--".into());
args.push(path.to_string());
let result = duct::cmd("git", &args)
.stdout_capture()
.stderr_capture()
.unchecked()
.run()?;
if !result.status.success() {
return Err(GitError::CommandFailed {
status_code: result.status.code(),
stderr: String::from_utf8_lossy(&result.stderr).into_owned(),
});
}
let mut patch = result.stdout;
let too_large = options.max_bytes > 0 && patch.len() > options.max_bytes as usize;
if too_large {
patch.truncate(options.max_bytes as usize);
}
Ok((patch, too_large))
}
}
fn change_type(status: char) -> ChangeType {
match status {
'A' => ChangeType::DiffFileChangeTypeAdded,
'D' => ChangeType::DiffFileChangeTypeDeleted,
'R' => ChangeType::DiffFileChangeTypeRenamed,
'C' => ChangeType::DiffFileChangeTypeCopied,
'T' => ChangeType::DiffFileChangeTypeTypeChanged,
'U' => ChangeType::DiffFileChangeTypeUnmerged,
_ => ChangeType::DiffFileChangeTypeModified,
}
}