forked from forgejo/forgejo
Dump: add output format tar and output to stdout (#10376)
* Dump: Use mholt/archive/v3 to support tar including many compressions Signed-off-by: Philipp Homann <homann.philipp@googlemail.com> * Dump: Allow dump output to stdout Signed-off-by: Philipp Homann <homann.philipp@googlemail.com> * Dump: Fixed bug present since #6677 where SessionConfig.Provider is never "file" Signed-off-by: Philipp Homann <homann.philipp@googlemail.com> * Dump: never pack RepoRootPath, LFS.ContentPath and LogRootPath when they are below AppDataPath Signed-off-by: Philipp Homann <homann.philipp@googlemail.com> * Dump: also dump LFS (fixes #10058) Signed-off-by: Philipp Homann <homann.philipp@googlemail.com> * Dump: never dump CustomPath if CustomPath is a subdir of or equal to AppDataPath (fixes #10365) Signed-off-by: Philipp Homann <homann.philipp@googlemail.com> * Use log.Info instead of fmt.Fprintf Signed-off-by: Philipp Homann <homann.philipp@googlemail.com> * import ordering * make fmt Co-authored-by: zeripath <art27@cantab.net> Co-authored-by: techknowlogick <techknowlogick@gitea.io> Co-authored-by: Matti R <matti@mdranta.net>
This commit is contained in:
PhilippHomann
GitHub
parent
209b17c4e2
commit
684b7a999f
303 changed files with 301317 additions and 1183 deletions
158
vendor/github.com/klauspost/compress/zstd/fse_predefined.go
generated
vendored
Normal file
158
vendor/github.com/klauspost/compress/zstd/fse_predefined.go
generated
vendored
Normal file
|
|
@ -0,0 +1,158 @@
|
|||
// Copyright 2019+ Klaus Post. All rights reserved.
|
||||
// License information can be found in the LICENSE file.
|
||||
// Based on work by Yann Collet, released under BSD License.
|
||||
|
||||
package zstd
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"math"
|
||||
"sync"
|
||||
)
|
||||
|
||||
var (
|
||||
// fsePredef are the predefined fse tables as defined here:
|
||||
// https://github.com/facebook/zstd/blob/dev/doc/zstd_compression_format.md#default-distributions
|
||||
// These values are already transformed.
|
||||
fsePredef [3]fseDecoder
|
||||
|
||||
// fsePredefEnc are the predefined encoder based on fse tables as defined here:
|
||||
// https://github.com/facebook/zstd/blob/dev/doc/zstd_compression_format.md#default-distributions
|
||||
// These values are already transformed.
|
||||
fsePredefEnc [3]fseEncoder
|
||||
|
||||
// symbolTableX contain the transformations needed for each type as defined in
|
||||
// https://github.com/facebook/zstd/blob/dev/doc/zstd_compression_format.md#the-codes-for-literals-lengths-match-lengths-and-offsets
|
||||
symbolTableX [3][]baseOffset
|
||||
|
||||
// maxTableSymbol is the biggest supported symbol for each table type
|
||||
// https://github.com/facebook/zstd/blob/dev/doc/zstd_compression_format.md#the-codes-for-literals-lengths-match-lengths-and-offsets
|
||||
maxTableSymbol = [3]uint8{tableLiteralLengths: maxLiteralLengthSymbol, tableOffsets: maxOffsetLengthSymbol, tableMatchLengths: maxMatchLengthSymbol}
|
||||
|
||||
// bitTables is the bits table for each table.
|
||||
bitTables = [3][]byte{tableLiteralLengths: llBitsTable[:], tableOffsets: nil, tableMatchLengths: mlBitsTable[:]}
|
||||
)
|
||||
|
||||
type tableIndex uint8
|
||||
|
||||
const (
|
||||
// indexes for fsePredef and symbolTableX
|
||||
tableLiteralLengths tableIndex = 0
|
||||
tableOffsets tableIndex = 1
|
||||
tableMatchLengths tableIndex = 2
|
||||
|
||||
maxLiteralLengthSymbol = 35
|
||||
maxOffsetLengthSymbol = 30
|
||||
maxMatchLengthSymbol = 52
|
||||
)
|
||||
|
||||
// baseOffset is used for calculating transformations.
|
||||
type baseOffset struct {
|
||||
baseLine uint32
|
||||
addBits uint8
|
||||
}
|
||||
|
||||
// fillBase will precalculate base offsets with the given bit distributions.
|
||||
func fillBase(dst []baseOffset, base uint32, bits ...uint8) {
|
||||
if len(bits) != len(dst) {
|
||||
panic(fmt.Sprintf("len(dst) (%d) != len(bits) (%d)", len(dst), len(bits)))
|
||||
}
|
||||
for i, bit := range bits {
|
||||
if base > math.MaxInt32 {
|
||||
panic(fmt.Sprintf("invalid decoding table, base overflows int32"))
|
||||
}
|
||||
|
||||
dst[i] = baseOffset{
|
||||
baseLine: base,
|
||||
addBits: bit,
|
||||
}
|
||||
base += 1 << bit
|
||||
}
|
||||
}
|
||||
|
||||
var predef sync.Once
|
||||
|
||||
func initPredefined() {
|
||||
predef.Do(func() {
|
||||
// Literals length codes
|
||||
tmp := make([]baseOffset, 36)
|
||||
for i := range tmp[:16] {
|
||||
tmp[i] = baseOffset{
|
||||
baseLine: uint32(i),
|
||||
addBits: 0,
|
||||
}
|
||||
}
|
||||
fillBase(tmp[16:], 16, 1, 1, 1, 1, 2, 2, 3, 3, 4, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
|
||||
symbolTableX[tableLiteralLengths] = tmp
|
||||
|
||||
// Match length codes
|
||||
tmp = make([]baseOffset, 53)
|
||||
for i := range tmp[:32] {
|
||||
tmp[i] = baseOffset{
|
||||
// The transformation adds the 3 length.
|
||||
baseLine: uint32(i) + 3,
|
||||
addBits: 0,
|
||||
}
|
||||
}
|
||||
fillBase(tmp[32:], 35, 1, 1, 1, 1, 2, 2, 3, 3, 4, 4, 5, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
|
||||
symbolTableX[tableMatchLengths] = tmp
|
||||
|
||||
// Offset codes
|
||||
tmp = make([]baseOffset, maxOffsetBits+1)
|
||||
tmp[1] = baseOffset{
|
||||
baseLine: 1,
|
||||
addBits: 1,
|
||||
}
|
||||
fillBase(tmp[2:], 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30)
|
||||
symbolTableX[tableOffsets] = tmp
|
||||
|
||||
// Fill predefined tables and transform them.
|
||||
// https://github.com/facebook/zstd/blob/dev/doc/zstd_compression_format.md#default-distributions
|
||||
for i := range fsePredef[:] {
|
||||
f := &fsePredef[i]
|
||||
switch tableIndex(i) {
|
||||
case tableLiteralLengths:
|
||||
// https://github.com/facebook/zstd/blob/ededcfca57366461021c922720878c81a5854a0a/lib/decompress/zstd_decompress_block.c#L243
|
||||
f.actualTableLog = 6
|
||||
copy(f.norm[:], []int16{4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1,
|
||||
2, 2, 2, 2, 2, 2, 2, 2, 2, 3, 2, 1, 1, 1, 1, 1,
|
||||
-1, -1, -1, -1})
|
||||
f.symbolLen = 36
|
||||
case tableOffsets:
|
||||
// https://github.com/facebook/zstd/blob/ededcfca57366461021c922720878c81a5854a0a/lib/decompress/zstd_decompress_block.c#L281
|
||||
f.actualTableLog = 5
|
||||
copy(f.norm[:], []int16{
|
||||
1, 1, 1, 1, 1, 1, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1,
|
||||
1, 1, 1, 1, 1, 1, 1, 1, -1, -1, -1, -1, -1})
|
||||
f.symbolLen = 29
|
||||
case tableMatchLengths:
|
||||
//https://github.com/facebook/zstd/blob/ededcfca57366461021c922720878c81a5854a0a/lib/decompress/zstd_decompress_block.c#L304
|
||||
f.actualTableLog = 6
|
||||
copy(f.norm[:], []int16{
|
||||
1, 4, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1,
|
||||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
|
||||
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, -1, -1,
|
||||
-1, -1, -1, -1, -1})
|
||||
f.symbolLen = 53
|
||||
}
|
||||
if err := f.buildDtable(); err != nil {
|
||||
panic(fmt.Errorf("building table %v: %v", tableIndex(i), err))
|
||||
}
|
||||
if err := f.transform(symbolTableX[i]); err != nil {
|
||||
panic(fmt.Errorf("building table %v: %v", tableIndex(i), err))
|
||||
}
|
||||
f.preDefined = true
|
||||
|
||||
// Create encoder as well
|
||||
enc := &fsePredefEnc[i]
|
||||
copy(enc.norm[:], f.norm[:])
|
||||
enc.symbolLen = f.symbolLen
|
||||
enc.actualTableLog = f.actualTableLog
|
||||
if err := enc.buildCTable(); err != nil {
|
||||
panic(fmt.Errorf("building encoding table %v: %v", tableIndex(i), err))
|
||||
}
|
||||
enc.setBits(bitTables[i])
|
||||
enc.preDefined = true
|
||||
}
|
||||
})
|
||||
}
|
||||
Loading…
Add table
Add a link
Reference in a new issue