Struct git_odb::pack::data::File [−][src]
pub struct File { /* fields omitted */ }A pack data file
Implementations
impl File[src]
impl File[src]Decompression of objects
pub fn decompress_entry(
&self,
entry: &Entry,
out: &mut [u8]
) -> Result<usize, Error>[src]
&self,
entry: &Entry,
out: &mut [u8]
) -> Result<usize, Error>
Decompress the given entry into out and return the amount of bytes read from the pack data.
Note that this method does not resolve deltified objects, but merely decompresses their content
out is expected to be large enough to hold entry.size bytes.
Panics
If out isn’t large enough to hold the decompressed entry
pub fn entry(&self, offset: u64) -> Entry[src]
Obtain the Entry at the given offset into the pack.
The offset is typically obtained from the pack index file.
pub fn decode_entry(
&self,
entry: Entry,
out: &mut Vec<u8>,
resolve: impl Fn(&oid, &mut Vec<u8>) -> Option<ResolvedBase>,
delta_cache: &mut impl DecodeEntry
) -> Result<Outcome, Error>[src]
&self,
entry: Entry,
out: &mut Vec<u8>,
resolve: impl Fn(&oid, &mut Vec<u8>) -> Option<ResolvedBase>,
delta_cache: &mut impl DecodeEntry
) -> Result<Outcome, Error>
Decode an entry, resolving delta’s as needed, while growing the out vector if there is not enough
space to hold the result object.
The entry determines which object to decode, and is commonly obtained with the help of a pack index file or through pack iteration.
resolve is a function to lookup objects with the given ObjectId, in case the full object id is used to refer to
a base object, instead of an in-pack offset.
delta_cache is a mechanism to avoid looking up base objects multiple times when decompressing multiple objects in a row.
Use a Noop-Cache to disable caching alltogether at the cost of repeating work.
impl File[src]
impl File[src]Checksums and verify checksums
pub fn checksum(&self) -> ObjectId[src]
The checksum in the trailer of this pack data file
pub fn verify_checksum(
&self,
progress: impl Progress
) -> Result<ObjectId, Error>[src]
&self,
progress: impl Progress
) -> Result<ObjectId, Error>
Verifies that the checksum of the packfile over all bytes preceding it indeed matches the actual checksum,
returning the actual checksum equivalent to the return value of checksum() if there
is no mismatch.
Note that if no progress is desired, one can pass [git_features::progress::Discard].
Have a look at index::File::verify_integrity(…) for an
even more thorough integrity check.
impl File[src]
impl File[src]pub fn streaming_iter(&self) -> Result<BytesToEntriesIter<impl BufRead>, Error>[src]
Returns an iterator over Entries, without making use of the memory mapping.
impl File[src]
impl File[src]Information about the pack data file itself
pub fn version(&self) -> Version[src]
The pack data version of this file
pub fn num_objects(&self) -> u32[src]
The number of objects stored in this pack data file
pub fn data_len(&self) -> usize[src]
The length of all mapped data, including the pack header and the pack trailer
pub fn pack_end(&self) -> usize[src]
The position of the byte one past the last pack entry, or in other terms, the first byte of the trailing hash.
pub fn path(&self) -> &Path[src]
The path to the pack data file on disk
pub fn entry_slice(&self, slice: EntryRange) -> Option<&[u8]>[src]
Returns the pack data at the given slice if its range is contained in the mapped pack data
pub fn entry_crc32(&self, pack_offset: u64, size: usize) -> u32[src]
Returns the CRC32 of the pack data indicated by pack_offset and the size of the mapped data.
Note: finding the right size is only possible by decompressing the pack entry beforehand, or by using the (to be sorted) offsets stored in an index file.
Panics
If pack_offset or size are pointing to a range outside of the mapped pack data.
Trait Implementations
Auto Trait Implementations
impl RefUnwindSafe for File
impl RefUnwindSafe for Fileimpl UnwindSafe for File
impl UnwindSafe for FileBlanket Implementations
impl<T> FmtForward for T
impl<T> FmtForward for Tpub fn fmt_binary(self) -> FmtBinary<Self> where
Self: Binary,
Self: Binary,
pub fn fmt_display(self) -> FmtDisplay<Self> where
Self: Display,
Self: Display,
pub fn fmt_lower_exp(self) -> FmtLowerExp<Self> where
Self: LowerExp,
Self: LowerExp,
pub fn fmt_lower_hex(self) -> FmtLowerHex<Self> where
Self: LowerHex,
Self: LowerHex,
pub fn fmt_octal(self) -> FmtOctal<Self> where
Self: Octal,
Self: Octal,
pub fn fmt_pointer(self) -> FmtPointer<Self> where
Self: Pointer,
Self: Pointer,
pub fn fmt_upper_exp(self) -> FmtUpperExp<Self> where
Self: UpperExp,
Self: UpperExp,
pub fn fmt_upper_hex(self) -> FmtUpperHex<Self> where
Self: UpperHex,
Self: UpperHex,
impl<T> Pipe for T where
T: ?Sized,
impl<T> Pipe for T where
T: ?Sized, pub fn pipe<R>(self, func: impl FnOnce(Self) -> R) -> R
pub fn pipe_ref<'a, R>(&'a self, func: impl FnOnce(&'a Self) -> R) -> R where
R: 'a,
R: 'a,
pub fn pipe_ref_mut<'a, R>(
&'a mut self,
func: impl FnOnce(&'a mut Self) -> R
) -> R where
R: 'a,
&'a mut self,
func: impl FnOnce(&'a mut Self) -> R
) -> R where
R: 'a,
pub fn pipe_borrow<'a, B, R>(&'a self, func: impl FnOnce(&'a B) -> R) -> R where
Self: Borrow<B>,
R: 'a,
B: 'a + ?Sized,
Self: Borrow<B>,
R: 'a,
B: 'a + ?Sized,
pub fn pipe_borrow_mut<'a, B, R>(
&'a mut self,
func: impl FnOnce(&'a mut B) -> R
) -> R where
Self: BorrowMut<B>,
R: 'a,
B: 'a + ?Sized,
&'a mut self,
func: impl FnOnce(&'a mut B) -> R
) -> R where
Self: BorrowMut<B>,
R: 'a,
B: 'a + ?Sized,
pub fn pipe_as_ref<'a, U, R>(&'a self, func: impl FnOnce(&'a U) -> R) -> R where
Self: AsRef<U>,
R: 'a,
U: 'a + ?Sized,
Self: AsRef<U>,
R: 'a,
U: 'a + ?Sized,
pub fn pipe_as_mut<'a, U, R>(
&'a mut self,
func: impl FnOnce(&'a mut U) -> R
) -> R where
Self: AsMut<U>,
R: 'a,
U: 'a + ?Sized,
&'a mut self,
func: impl FnOnce(&'a mut U) -> R
) -> R where
Self: AsMut<U>,
R: 'a,
U: 'a + ?Sized,
pub fn pipe_deref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: Deref<Target = T>,
R: 'a,
T: 'a + ?Sized,
Self: Deref<Target = T>,
R: 'a,
T: 'a + ?Sized,
pub fn pipe_deref_mut<'a, T, R>(
&'a mut self,
func: impl FnOnce(&'a mut T) -> R
) -> R where
Self: DerefMut<Target = T> + Deref,
R: 'a,
T: 'a + ?Sized,
&'a mut self,
func: impl FnOnce(&'a mut T) -> R
) -> R where
Self: DerefMut<Target = T> + Deref,
R: 'a,
T: 'a + ?Sized,
impl<T> PipeAsRef for T
impl<T> PipeAsRef for Tpub fn pipe_as_ref<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: AsRef<T>,
R: 'a,
T: 'a,
Self: AsRef<T>,
R: 'a,
T: 'a,
pub fn pipe_as_mut<'a, T, R>(
&'a mut self,
func: impl FnOnce(&'a mut T) -> R
) -> R where
Self: AsMut<T>,
R: 'a,
T: 'a,
&'a mut self,
func: impl FnOnce(&'a mut T) -> R
) -> R where
Self: AsMut<T>,
R: 'a,
T: 'a,
impl<T> PipeBorrow for T
impl<T> PipeBorrow for Tpub fn pipe_borrow<'a, T, R>(&'a self, func: impl FnOnce(&'a T) -> R) -> R where
Self: Borrow<T>,
R: 'a,
T: 'a,
Self: Borrow<T>,
R: 'a,
T: 'a,
pub fn pipe_borrow_mut<'a, T, R>(
&'a mut self,
func: impl FnOnce(&'a mut T) -> R
) -> R where
Self: BorrowMut<T>,
R: 'a,
T: 'a,
&'a mut self,
func: impl FnOnce(&'a mut T) -> R
) -> R where
Self: BorrowMut<T>,
R: 'a,
T: 'a,
impl<T> PipeDeref for T
impl<T> PipeDeref for Tpub fn pipe_deref<'a, R>(
&'a self,
func: impl FnOnce(&'a Self::Target) -> R
) -> R where
Self: Deref,
R: 'a,
&'a self,
func: impl FnOnce(&'a Self::Target) -> R
) -> R where
Self: Deref,
R: 'a,
pub fn pipe_deref_mut<'a, R>(
&'a mut self,
func: impl FnOnce(&'a mut Self::Target) -> R
) -> R where
Self: DerefMut,
R: 'a,
&'a mut self,
func: impl FnOnce(&'a mut Self::Target) -> R
) -> R where
Self: DerefMut,
R: 'a,
impl<T> Tap for T
impl<T> Tap for Tpub fn tap(self, func: impl FnOnce(&Self)) -> Self
pub fn tap_mut(self, func: impl FnOnce(&mut Self)) -> Self
pub fn tap_borrow<B>(self, func: impl FnOnce(&B)) -> Self where
Self: Borrow<B>,
B: ?Sized,
Self: Borrow<B>,
B: ?Sized,
pub fn tap_borrow_mut<B>(self, func: impl FnOnce(&mut B)) -> Self where
Self: BorrowMut<B>,
B: ?Sized,
Self: BorrowMut<B>,
B: ?Sized,
pub fn tap_ref<R>(self, func: impl FnOnce(&R)) -> Self where
Self: AsRef<R>,
R: ?Sized,
Self: AsRef<R>,
R: ?Sized,
pub fn tap_ref_mut<R>(self, func: impl FnOnce(&mut R)) -> Self where
Self: AsMut<R>,
R: ?Sized,
Self: AsMut<R>,
R: ?Sized,
pub fn tap_deref<T>(self, func: impl FnOnce(&T)) -> Self where
Self: Deref<Target = T>,
T: ?Sized,
Self: Deref<Target = T>,
T: ?Sized,
pub fn tap_deref_mut<T>(self, func: impl FnOnce(&mut T)) -> Self where
Self: DerefMut<Target = T> + Deref,
T: ?Sized,
Self: DerefMut<Target = T> + Deref,
T: ?Sized,
pub fn tap_dbg(self, func: impl FnOnce(&Self)) -> Self
pub fn tap_mut_dbg(self, func: impl FnOnce(&mut Self)) -> Self
pub fn tap_borrow_dbg<B>(self, func: impl FnOnce(&B)) -> Self where
Self: Borrow<B>,
B: ?Sized,
Self: Borrow<B>,
B: ?Sized,
pub fn tap_borrow_mut_dbg<B>(self, func: impl FnOnce(&mut B)) -> Self where
Self: BorrowMut<B>,
B: ?Sized,
Self: BorrowMut<B>,
B: ?Sized,
pub fn tap_ref_dbg<R>(self, func: impl FnOnce(&R)) -> Self where
Self: AsRef<R>,
R: ?Sized,
Self: AsRef<R>,
R: ?Sized,
pub fn tap_ref_mut_dbg<R>(self, func: impl FnOnce(&mut R)) -> Self where
Self: AsMut<R>,
R: ?Sized,
Self: AsMut<R>,
R: ?Sized,
pub fn tap_deref_dbg<T>(self, func: impl FnOnce(&T)) -> Self where
Self: Deref<Target = T>,
T: ?Sized,
Self: Deref<Target = T>,
T: ?Sized,
pub fn tap_deref_mut_dbg<T>(self, func: impl FnOnce(&mut T)) -> Self where
Self: DerefMut<Target = T> + Deref,
T: ?Sized,
Self: DerefMut<Target = T> + Deref,
T: ?Sized,
impl<T, U> TapAsRef<U> for T where
U: ?Sized,
impl<T, U> TapAsRef<U> for T where
U: ?Sized, pub fn tap_ref<F, R>(self, func: F) -> Self where
Self: AsRef<T>,
F: FnOnce(&T) -> R,
Self: AsRef<T>,
F: FnOnce(&T) -> R,
pub fn tap_ref_dbg<F, R>(self, func: F) -> Self where
Self: AsRef<T>,
F: FnOnce(&T) -> R,
Self: AsRef<T>,
F: FnOnce(&T) -> R,
pub fn tap_ref_mut<F, R>(self, func: F) -> Self where
Self: AsMut<T>,
F: FnOnce(&mut T) -> R,
Self: AsMut<T>,
F: FnOnce(&mut T) -> R,
pub fn tap_ref_mut_dbg<F, R>(self, func: F) -> Self where
Self: AsMut<T>,
F: FnOnce(&mut T) -> R,
Self: AsMut<T>,
F: FnOnce(&mut T) -> R,
impl<T, U> TapBorrow<U> for T where
U: ?Sized,
impl<T, U> TapBorrow<U> for T where
U: ?Sized, pub fn tap_borrow<F, R>(self, func: F) -> Self where
Self: Borrow<T>,
F: FnOnce(&T) -> R,
Self: Borrow<T>,
F: FnOnce(&T) -> R,
pub fn tap_borrow_dbg<F, R>(self, func: F) -> Self where
Self: Borrow<T>,
F: FnOnce(&T) -> R,
Self: Borrow<T>,
F: FnOnce(&T) -> R,
pub fn tap_borrow_mut<F, R>(self, func: F) -> Self where
Self: BorrowMut<T>,
F: FnOnce(&mut T) -> R,
Self: BorrowMut<T>,
F: FnOnce(&mut T) -> R,
pub fn tap_borrow_mut_dbg<F, R>(self, func: F) -> Self where
Self: BorrowMut<T>,
F: FnOnce(&mut T) -> R,
Self: BorrowMut<T>,
F: FnOnce(&mut T) -> R,
impl<T> TapDeref for T
impl<T> TapDeref for Tpub fn tap_deref<F, R>(self, func: F) -> Self where
Self: Deref,
F: FnOnce(&Self::Target) -> R,
Self: Deref,
F: FnOnce(&Self::Target) -> R,
pub fn tap_deref_dbg<F, R>(self, func: F) -> Self where
Self: Deref,
F: FnOnce(&Self::Target) -> R,
Self: Deref,
F: FnOnce(&Self::Target) -> R,
pub fn tap_deref_mut<F, R>(self, func: F) -> Self where
Self: DerefMut,
F: FnOnce(&mut Self::Target) -> R,
Self: DerefMut,
F: FnOnce(&mut Self::Target) -> R,
pub fn tap_deref_mut_dbg<F, R>(self, func: F) -> Self where
Self: DerefMut,
F: FnOnce(&mut Self::Target) -> R,
Self: DerefMut,
F: FnOnce(&mut Self::Target) -> R,
impl<V, T> VZip<V> for T where
V: MultiLane<T>,
impl<V, T> VZip<V> for T where
V: MultiLane<T>,