gix-archive-0.18.0/.cargo_vcs_info.json0000644000000001510000000000100133250ustar { "git": { "sha1": "c1ba5719132227410abefeb54e3032b015233e94" }, "path_in_vcs": "gix-archive" }gix-archive-0.18.0/Cargo.toml0000644000000076570000000000100113450ustar # THIS FILE IS AUTOMATICALLY GENERATED BY CARGO # # When uploading crates to the registry Cargo will automatically # "normalize" Cargo.toml files for maximal compatibility # with all versions of Cargo and also rewrite `path` dependencies # to registry (e.g., crates.io) dependencies. # # If you are reading this file be aware that the original Cargo.toml # will likely look very different (and much more reasonable). # See Cargo.toml.orig for the original contents. [package] edition = "2021" rust-version = "1.65" name = "gix-archive" version = "0.18.0" authors = ["Sebastian Thiel "] build = false include = [ "src/**/*", "LICENSE-*", ] autolib = false autobins = false autoexamples = false autotests = false autobenches = false description = "archive generation from of a worktree stream" readme = false license = "MIT OR Apache-2.0" repository = "https://github.com/GitoxideLabs/gitoxide" [package.metadata.docs.rs] all-features = true features = ["document-features"] [lib] name = "gix_archive" path = "src/lib.rs" doctest = false [dependencies.bstr] version = "1.5.0" default-features = false [dependencies.document-features] version = "0.2.0" optional = true [dependencies.flate2] version = "1.0.33" optional = true [dependencies.gix-date] version = "^0.9.3" [dependencies.gix-object] version = "^0.46.1" [dependencies.gix-path] version = "^0.10.13" optional = true [dependencies.gix-worktree-stream] version = "^0.18.0" [dependencies.jiff] version = "0.1.2" features = ["std"] default-features = false [dependencies.tar] version = "0.4.38" optional = true [dependencies.thiserror] version = "2.0.0" [dependencies.zip] version = "2.1.0" features = ["deflate"] optional = true default-features = false [dev-dependencies] [features] default = [ "tar", "tar_gz", "zip", ] tar = [ "dep:tar", "dep:gix-path", ] tar_gz = [ "tar", "dep:flate2", ] zip = ["dep:zip"] [lints.clippy] bool_to_int_with_if = "allow" borrow_as_ptr = "allow" cast_lossless = "allow" cast_possible_truncation = "allow" cast_possible_wrap = "allow" cast_precision_loss = "allow" cast_sign_loss = "allow" checked_conversions = "allow" copy_iterator = "allow" default_trait_access = "allow" doc_markdown = "allow" empty_docs = "allow" enum_glob_use = "allow" explicit_deref_methods = "allow" explicit_into_iter_loop = "allow" explicit_iter_loop = "allow" filter_map_next = "allow" fn_params_excessive_bools = "allow" from_iter_instead_of_collect = "allow" if_not_else = "allow" ignored_unit_patterns = "allow" implicit_clone = "allow" inconsistent_struct_constructor = "allow" inefficient_to_string = "allow" inline_always = "allow" items_after_statements = "allow" iter_not_returning_iterator = "allow" iter_without_into_iter = "allow" manual_assert = "allow" manual_is_variant_and = "allow" manual_let_else = "allow" manual_string_new = "allow" many_single_char_names = "allow" match_bool = "allow" match_same_arms = "allow" match_wild_err_arm = "allow" match_wildcard_for_single_variants = "allow" missing_errors_doc = "allow" missing_panics_doc = "allow" module_name_repetitions = "allow" must_use_candidate = "allow" mut_mut = "allow" naive_bytecount = "allow" needless_for_each = "allow" needless_pass_by_value = "allow" needless_raw_string_hashes = "allow" no_effect_underscore_binding = "allow" option_option = "allow" range_plus_one = "allow" redundant_else = "allow" return_self_not_must_use = "allow" should_panic_without_expect = "allow" similar_names = "allow" single_match_else = "allow" stable_sort_primitive = "allow" struct_excessive_bools = "allow" struct_field_names = "allow" too_long_first_doc_paragraph = "allow" too_many_lines = "allow" transmute_ptr_to_ptr = "allow" trivially_copy_pass_by_ref = "allow" unnecessary_join = "allow" unnecessary_wraps = "allow" unreadable_literal = "allow" unused_self = "allow" used_underscore_binding = "allow" wildcard_imports = "allow" [lints.clippy.pedantic] level = "warn" priority = -1 [lints.rust] gix-archive-0.18.0/Cargo.toml.orig000064400000000000000000000034231046102023000150110ustar 00000000000000lints.workspace = true [package] name = "gix-archive" version = "0.18.0" repository = "https://github.com/GitoxideLabs/gitoxide" license = "MIT OR Apache-2.0" description = "archive generation from of a worktree stream" authors = ["Sebastian Thiel "] edition = "2021" rust-version = "1.65" include = ["src/**/*", "LICENSE-*"] [lib] doctest = false [features] default = ["tar", "tar_gz", "zip"] ## Enable the `tar` archive format. It has support for all information, except for object ids. tar = ["dep:tar", "dep:gix-path"] ## Enable the `tar.gz` archive format. tar_gz = ["tar", "dep:flate2"] ## Enable the `zip` archive format. zip = ["dep:zip"] [dependencies] gix-worktree-stream = { version = "^0.18.0", path = "../gix-worktree-stream" } gix-object = { version = "^0.46.1", path = "../gix-object" } gix-path = { version = "^0.10.13", path = "../gix-path", optional = true } gix-date = { version = "^0.9.3", path = "../gix-date" } flate2 = { version = "1.0.33", optional = true } zip = { version = "2.1.0", optional = true, default-features = false, features = ["deflate"] } jiff = { version = "0.1.2", default-features = false, features = ["std"] } thiserror = "2.0.0" bstr = { version = "1.5.0", default-features = false } tar = { version = "0.4.38", optional = true } document-features = { version = "0.2.0", optional = true } [dev-dependencies] gix-testtools = { path = "../tests/tools" } gix-odb = { path = "../gix-odb" } gix-worktree = { path = "../gix-worktree", default-features = false, features = ["attributes"] } gix-hash = { path = "../gix-hash" } gix-attributes = { path = "../gix-attributes" } gix-object = { path = "../gix-object" } gix-filter = { path = "../gix-filter" } [package.metadata.docs.rs] all-features = true features = ["document-features"] gix-archive-0.18.0/LICENSE-APACHE000064400000000000000000000247461046102023000140610ustar 00000000000000 Apache License Version 2.0, January 2004 http://www.apache.org/licenses/ TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 1. 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See the License for the specific language governing permissions and limitations under the License. gix-archive-0.18.0/LICENSE-MIT000064400000000000000000000017771046102023000135700ustar 00000000000000Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. gix-archive-0.18.0/src/lib.rs000064400000000000000000000103421046102023000140230ustar 00000000000000//! The implementation of creating an archive from a worktree stream, similar to `git archive`. //! //! ## Deviation //! //! This implementation is early and just does the basics. Git does more to support more context when filtering and to keep //! more information about entries in the various archive formats. //! `tar` is implemented in a very basic fashion only. //! //! ## Feature Flags //! All features are related to which container formats are available. #![cfg_attr( all(doc, feature = "document-features"), doc = ::document_features::document_features!() )] #![cfg_attr(all(doc, feature = "document-features"), feature(doc_cfg, doc_auto_cfg))] #![deny(rust_2018_idioms, missing_docs)] #![forbid(unsafe_code)] use bstr::BString; /// The error returned by [`write_stream()`]. #[derive(Debug, thiserror::Error)] #[allow(missing_docs)] pub enum Error { #[error(transparent)] Io(#[from] std::io::Error), #[error(transparent)] NextStreamEntry(#[from] gix_worktree_stream::entry::Error), #[error("The internal format cannot be used as an archive, it's merely a debugging tool")] InternalFormatMustNotPersist, #[error("Support for the format '{wanted:?}' was not compiled in")] SupportNotCompiledIn { wanted: Format }, #[error("Cannot create a zip archive if output stream does not support seek")] ZipWithoutSeek, #[error("Cannot use modification as it is not within the supported bounds")] InvalidModificationTime(#[source] Box), } /// The supported container formats for use in [`write_stream()`]. #[derive(Default, PartialEq, Eq, Copy, Clone, Debug)] pub enum Format { /// An internal format that is suitable only for intra-process communication. /// /// All transformations in the options are ignored. Calling [`write_stream`] is disallowed /// as it's more efficient to call [gix_worktree_stream::Stream::into_read()] right away. /// It is provided here as a basis available without extra dependencies, and as a debugging tool. #[default] InternalTransientNonPersistable, /// A standard `tar` archive. /// /// Use it as well if a custom container format is desired. The idea is to decode it on a separate thread /// to rewrite the data to the desired format. Tar, /// A convenience format that will `gzip` deflate the `tar` stream. TarGz { /// If `None`, use the default compression level. Otherwise use the given one which /// ranges from 0-9 for the deflate algorithm. compression_level: Option, }, /// A standard `zip` archive. Note that this format silently converts illformed UTF-8 to UTF-8, which will /// equal a change of path. /// /// Requires the `zip` feature toggle to have an effect. /// /// ### Shortcoming /// /// Even though symlinks are stored as such, for some reason at least on MacOS those aren't restored. That works, /// however, when letting `git` create the archive. Zip { /// If `None`, use the default compression level. Otherwise use the given one which /// ranges from 0-9 for the deflate algorithm. compression_level: Option, }, } /// Options for configuring [`write_stream()`]. #[derive(Clone, Debug)] pub struct Options { /// The archive's format. pub format: Format, /// Given a `path`, originating in the git tree, to place into the archive, put `/path` in front of it. /// /// Note that that `/` should be used as separator, and that a prefix directory has to end with `/`. pub tree_prefix: Option, /// The modification time for all entries in the archive as seen since UNIX epoch. /// /// Defaults to the current time. The caller may set this to the commit time if available. pub modification_time: gix_date::SecondsSinceUnixEpoch, } impl Default for Options { fn default() -> Self { Options { format: Default::default(), tree_prefix: None, modification_time: std::time::SystemTime::now() .duration_since(std::time::UNIX_EPOCH) .map(|t| t.as_secs() as i64) .unwrap_or_default(), } } } mod write; pub use write::{write_stream, write_stream_seek}; gix-archive-0.18.0/src/write.rs000064400000000000000000000243301046102023000144110ustar 00000000000000use gix_worktree_stream::{Entry, Stream}; use crate::{Error, Format, Options}; /// Write all stream entries in `stream` as provided by `next_entry(stream)` to `out` configured according to `opts` which /// also includes the streaming format. /// /// ### Performance /// /// * The caller should be sure `out` is fast enough. If in doubt, wrap in [`std::io::BufWriter`]. /// * Further, big files aren't suitable for archival into `tar` archives as they require the size of the stream to be known /// prior to writing the header of each entry. #[cfg_attr(not(feature = "tar"), allow(unused_mut, unused_variables))] pub fn write_stream( stream: &mut Stream, mut next_entry: NextFn, out: impl std::io::Write, opts: Options, ) -> Result<(), Error> where NextFn: FnMut(&mut Stream) -> Result>, gix_worktree_stream::entry::Error>, { if opts.format == Format::InternalTransientNonPersistable { return Err(Error::InternalFormatMustNotPersist); } #[cfg(any(feature = "tar", feature = "tar_gz"))] { enum State { #[cfg(feature = "tar")] Tar((tar::Builder, Vec)), #[cfg(feature = "tar_gz")] TarGz((tar::Builder>, Vec)), } impl State { pub fn new(format: Format, mtime: gix_date::SecondsSinceUnixEpoch, out: W) -> Result { Ok(match format { Format::InternalTransientNonPersistable => unreachable!("handled earlier"), Format::Zip { .. } => return Err(Error::ZipWithoutSeek), #[cfg(feature = "tar")] Format::Tar => { #[cfg(feature = "tar")] { State::Tar(( { let mut ar = tar::Builder::new(out); ar.mode(tar::HeaderMode::Deterministic); ar }, Vec::with_capacity(64 * 1024), )) } #[cfg(not(feature = "tar"))] { Err(Error::SupportNotCompiledIn { wanted: Format::Tar }) } } Format::TarGz { compression_level } => { #[cfg(feature = "tar_gz")] { State::TarGz(( { let gz = flate2::GzBuilder::new().mtime(mtime as u32).write( out, match compression_level { None => flate2::Compression::default(), Some(level) => flate2::Compression::new(u32::from(level)), }, ); let mut ar = tar::Builder::new(gz); ar.mode(tar::HeaderMode::Deterministic); ar }, Vec::with_capacity(64 * 1024), )) } #[cfg(not(feature = "tar_gz"))] { Err(Error::SupportNotCompiledIn { wanted: Format::TarGz }) } } }) } } let mut state = State::new(opts.format, opts.modification_time, out)?; while let Some(entry) = next_entry(stream)? { match &mut state { #[cfg(feature = "tar")] State::Tar((ar, buf)) => { append_tar_entry(ar, buf, entry, opts.modification_time, &opts)?; } #[cfg(feature = "tar_gz")] State::TarGz((ar, buf)) => { append_tar_entry(ar, buf, entry, opts.modification_time, &opts)?; } } } match state { #[cfg(feature = "tar")] State::Tar((mut ar, _)) => { ar.finish()?; } #[cfg(feature = "tar_gz")] State::TarGz((ar, _)) => { ar.into_inner()?.finish()?; } } } Ok(()) } /// Like [`write_stream()`], but requires [`std::io::Seek`] for `out`. /// /// Note that `zip` is able to stream big files, which our `tar` implementation is not able to do, which makes it the /// only suitable container to support huge files from `git-lfs` without consuming excessive amounts of memory. #[cfg_attr(not(feature = "zip"), allow(unused_mut, unused_variables))] pub fn write_stream_seek( stream: &mut Stream, mut next_entry: NextFn, out: impl std::io::Write + std::io::Seek, opts: Options, ) -> Result<(), Error> where NextFn: FnMut(&mut Stream) -> Result>, gix_worktree_stream::entry::Error>, { let compression_level = match opts.format { Format::Zip { compression_level } => compression_level.map(i64::from), _other => return write_stream(stream, next_entry, out, opts), }; #[cfg(feature = "zip")] { let mut ar = zip::write::ZipWriter::new(out); let mut buf = Vec::new(); let zdt = jiff::Timestamp::from_second(opts.modification_time) .map_err(|err| Error::InvalidModificationTime(Box::new(err)))? .to_zoned(jiff::tz::TimeZone::UTC); let mtime = zip::DateTime::from_date_and_time( zdt.year() .try_into() .map_err(|err| Error::InvalidModificationTime(Box::new(err)))?, // These are all OK because month, day, hour, minute and second // are always positive. zdt.month().try_into().expect("non-negative"), zdt.day().try_into().expect("non-negative"), zdt.hour().try_into().expect("non-negative"), zdt.minute().try_into().expect("non-negative"), zdt.second().try_into().expect("non-negative"), ) .map_err(|err| Error::InvalidModificationTime(Box::new(err)))?; while let Some(entry) = next_entry(stream)? { append_zip_entry( &mut ar, entry, &mut buf, mtime, compression_level, opts.tree_prefix.as_ref(), )?; } ar.finish() .map_err(|err| std::io::Error::new(std::io::ErrorKind::Other, err))?; } Ok(()) } #[cfg(feature = "zip")] fn append_zip_entry( ar: &mut zip::write::ZipWriter, mut entry: gix_worktree_stream::Entry<'_>, buf: &mut Vec, mtime: zip::DateTime, compression_level: Option, tree_prefix: Option<&bstr::BString>, ) -> Result<(), Error> { let file_opts = zip::write::FileOptions::<'_, ()>::default() .compression_method(zip::CompressionMethod::Deflated) .compression_level(compression_level) .large_file(entry.bytes_remaining().map_or(true, |len| len > u32::MAX as usize)) .last_modified_time(mtime) .unix_permissions(if entry.mode.is_executable() { 0o755 } else { 0o644 }); let path = add_prefix(entry.relative_path(), tree_prefix).into_owned(); match entry.mode.kind() { gix_object::tree::EntryKind::Blob | gix_object::tree::EntryKind::BlobExecutable => { ar.start_file(path.to_string(), file_opts) .map_err(|err| std::io::Error::new(std::io::ErrorKind::Other, err))?; std::io::copy(&mut entry, ar)?; } gix_object::tree::EntryKind::Tree | gix_object::tree::EntryKind::Commit => { ar.add_directory(path.to_string(), file_opts) .map_err(|err| std::io::Error::new(std::io::ErrorKind::Other, err))?; } gix_object::tree::EntryKind::Link => { use bstr::ByteSlice; std::io::copy(&mut entry, buf)?; ar.add_symlink(path.to_string(), buf.as_bstr().to_string(), file_opts) .map_err(|err| std::io::Error::new(std::io::ErrorKind::Other, err))?; } } Ok(()) } #[cfg(any(feature = "tar", feature = "tar_gz"))] fn append_tar_entry( ar: &mut tar::Builder, buf: &mut Vec, mut entry: gix_worktree_stream::Entry<'_>, mtime_seconds_since_epoch: i64, opts: &Options, ) -> Result<(), Error> { let mut header = tar::Header::new_gnu(); header.set_mtime(mtime_seconds_since_epoch as u64); header.set_entry_type(tar_entry_type(entry.mode)); header.set_mode(if entry.mode.is_executable() { 0o755 } else { 0o644 }); buf.clear(); std::io::copy(&mut entry, buf)?; let path = gix_path::from_bstr(add_prefix(entry.relative_path(), opts.tree_prefix.as_ref())); header.set_size(buf.len() as u64); if entry.mode.is_link() { use bstr::ByteSlice; let target = gix_path::from_bstr(buf.as_bstr()); header.set_entry_type(tar::EntryType::Symlink); header.set_size(0); ar.append_link(&mut header, path, target)?; } else { ar.append_data(&mut header, path, buf.as_slice())?; } Ok(()) } #[cfg(any(feature = "tar", feature = "tar_gz"))] fn tar_entry_type(mode: gix_object::tree::EntryMode) -> tar::EntryType { use gix_object::tree::EntryKind; use tar::EntryType; match mode.kind() { EntryKind::Tree | EntryKind::Commit => EntryType::Directory, EntryKind::Blob => EntryType::Regular, EntryKind::BlobExecutable => EntryType::Regular, EntryKind::Link => EntryType::Link, } } #[cfg(any(feature = "tar", feature = "tar_gz"))] fn add_prefix<'a>(relative_path: &'a bstr::BStr, prefix: Option<&bstr::BString>) -> std::borrow::Cow<'a, bstr::BStr> { use std::borrow::Cow; match prefix { None => Cow::Borrowed(relative_path), Some(prefix) => { use bstr::ByteVec; let mut buf = prefix.clone(); buf.push_str(relative_path); Cow::Owned(buf) } } }