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iw5-mod/deps/HDiffPatch/README.md

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# [HDiffPatch](https://github.com/sisong/HDiffPatch)
[![release](https://img.shields.io/badge/release-v4.6.3-blue.svg)](https://github.com/sisong/HDiffPatch/releases)
[![license](https://img.shields.io/badge/license-MIT-blue.svg)](https://github.com/sisong/HDiffPatch/blob/master/LICENSE)
[![PRs Welcome](https://img.shields.io/badge/PRs-welcome-blue.svg)](https://github.com/sisong/HDiffPatch/pulls)
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[![Build Status](https://github.com/sisong/HDiffPatch/workflows/ci/badge.svg?branch=master)](https://github.com/sisong/HDiffPatch/actions?query=workflow%3Aci+branch%3Amaster)
[![Build status](https://ci.appveyor.com/api/projects/status/t9ow8dft8lt898cv/branch/master?svg=true)](https://ci.appveyor.com/project/sisong/hdiffpatch/branch/master)
a C\C++ library and command-line tools for Diff & Patch between binary files or directories(folder); cross-platform; runs fast; create small delta/differential; support large files and limit memory requires when diff & patch.
HDiffPatch defines its own patch file format, this lib is also compatible with the [bsdiff4](https://daemonology.net/bsdiff) patch format and partially compatible with the [open-vcdiff](https://github.com/google/open-vcdiff) and [xdelta3](https://github.com/jmacd/xdelta) patch file format VCDIFF(RFC 3284).
if need patch (OTA) on embedded systems,MCU,NB-IoT..., see demo [HPatchLite](https://github.com/sisong/HPatchLite) (+ [tinyuz](https://github.com/sisong/tinyuz)), can run on 1KB RAM devices!
update your own Android Apk? Jar or Zip file diff & patch? try [ApkDiffPatch](https://github.com/sisong/ApkDiffPatch), to create smaller delta/differential! NOTE: *ApkDiffPath can't be used by Android app store, because it requires re-signing apks before diff.*
[sfpatcher](https://github.com/sisong/sfpatcher) not require re-signing apks (like [archive-patcher](https://github.com/google/archive-patcher)), is designed for Android app store, patch speed up by a factor of xx than archive-patcher & run with O(1) memory.
if you not have the old versions(too many or not obtain or have been modified), thus cannot create the delta in advance. you can see demo [hsynz](https://github.com/sisong/hsynz) (like [zsync](http://zsync.moria.org.uk)), the new version is only need released once and the owners of the old version get the information about the new version and do the diff&patch themselves. hsynz support zstd compressor & run faster than zsync.
NOTE: *This library does not deal with file metadata, such as file last wirte time, permissions, link file, etc... To this library, a file is just as a stream of bytes; You can extend this library or use other tools.*
---
## Releases/Binaries
[Download from latest release](https://github.com/sisong/HDiffPatch/releases) : Command line app for Windows, Linux, MacOS; and .so patch lib for Android.
( release files build by projects in path `HDiffPatch/builds` )
use cmdline to create a delta:
`$hdiffz -m-6 -SD -c-zstd-21-24 -d oldPath newPath outDiffFile`
if file'size is very large, try changing `-m-6` to `-s-64`
apply the delta:
`$hpatchz oldPath diffFile outNewPath`
## Build it yourself
`$ cd <dir>/HDiffPatch`
### Linux or MacOS X ###
Try:
`$ make LZMA=0 ZSTD=0 MD5=0`
bzip2 : if the build fails with `fatal error: bzlib.h: No such file or directory`, use your system's package manager to install the libbz2 package and try again. install bzip2: `$ apt-get install libbz2` or `$ sudo apt-get install libbz2-dev` or `$ yum -y install bzip2` or `$ brew install bzip2` ...
Alternatively, get the optional library headers (+bzip2 library) and build completely: `$ git clone https://github.com/sisong/bzip2.git ../bzip2 && pushd ../bzip2 && make && sudo make install && popd`
if need lzma zstd md5 support, Try:
```
$ git clone https://github.com/sisong/libmd5.git ../libmd5
$ git clone https://github.com/sisong/lzma.git ../lzma
$ git clone https://github.com/sisong/zstd.git ../zstd
$ make
```
Tip: You can use `$ make -j` to compile in parallel.
### Windows ###
Before you build `builds/vc/HDiffPatch.sln` by [`Visual Studio`](https://visualstudio.microsoft.com), first get the libraries into sibling folders, like so:
```
$ git clone https://github.com/sisong/libmd5.git ../libmd5
$ git clone https://github.com/sisong/lzma.git ../lzma
$ git clone https://github.com/sisong/zstd.git ../zstd
$ git clone https://github.com/sisong/zlib.git ../zlib
$ git clone https://github.com/sisong/bzip2.git ../bzip2
```
### libhpatchz.so for Android ###
* install [Android NDK](https://developer.android.google.cn/ndk/downloads)
* `$ cd <dir>/HDiffPatch/builds/android_ndk_jni_mk`
* `$ build_libs.sh` (or `$ build_libs.bat` on windows, then got \*.so files)
* import file `com/github/sisong/HPatch.java` (from `HDiffPatch/builds/android_ndk_jni_mk/java/`) & .so files, java code can call the patch function in libhpatchz.so
---
### command line usage Chinese version: [命令行使用说明中文版](README_cmdline_cn.md)
## **diff** command line usage:
diff usage: **hdiffz** [options] **oldPath newPath outDiffFile**
compress usage: **hdiffz** [-c-...] **"" newPath outDiffFile**
test usage: **hdiffz** -t **oldPath newPath testDiffFile**
resave usage: **hdiffz** [-c-...] **diffFile outDiffFile**
get manifest: **hdiffz** [-g#...] [-C-checksumType] **inputPath -M#outManifestTxtFile**
manifest diff: **hdiffz** [options] **-M-old#oldManifestFile -M-new#newManifestFile oldPath newPath outDiffFile**
```
oldPath newPath inputPath can be file or directory(folder),
oldPath can empty, and input parameter ""
memory options:
-m[-matchScore]
DEFAULT; all file load into Memory; best diffFileSize;
requires (newFileSize+ oldFileSize*5(or *9 when oldFileSize>=2GB))+O(1)
bytes of memory;
matchScore>=0, DEFAULT -m-6, recommended bin: 0--4 text: 4--9 etc...
-s[-matchBlockSize]
all file load as Stream; fast;
requires O(oldFileSize*16/matchBlockSize+matchBlockSize*5*parallelThreadNumber)bytes of memory;
matchBlockSize>=4, DEFAULT -s-64, recommended 16,32,48,1k,64k,1m etc...
special options:
-block-fastMatchBlockSize
must run with -m;
set block match befor slow byte-by-byte match, DEFAULT -block-4k;
if set -block-0, means don't use block match;
fastMatchBlockSize>=4, recommended 256,1k,64k,1m etc...
if newData similar to oldData then diff speed++ & diff memory--,
but small possibility outDiffFile's size+
-cache
must run with -m;
set is use a big cache for slow match, DEFAULT false;
if newData not similar to oldData then diff speed++,
big cache max used O(oldFileSize) memory, and build slow(diff speed--)
-SD[-stepSize]
create single compressed diffData, only need one decompress buffer
when patch, and support step by step patching when step by step downloading!
stepSize>=(1024*4), DEFAULT -SD-256k, recommended 64k,2m etc...
-BSD
create diffFile compatible with bsdiff4, unsupport input directory(folder).
-VCD[-compressLevel[-dictSize]]
create diffFile compatible with VCDIFF, unsupport input directory(folder).
DEFAULT no compress, out format same as $open-vcdiff delta ... or $xdelta3 -S -e -n ...
if set compressLevel, out format same as $xdelta3 -S lzma -e -n ...
compress by 7zXZ(xz), compressLevel in {0..9}, DEFAULT level 7;
dictSize can like 4096 or 4k or 4m or 16m etc..., DEFAULT 8m
support compress by multi-thread parallel.
NOTE: out diffFile used large source window size!
-p-parallelThreadNumber
if parallelThreadNumber>1 then open multi-thread Parallel mode;
DEFAULT -p-4; requires more memory!
-p-search-searchThreadNumber
must run with -s[-matchBlockSize];
DEFAULT searchThreadNumber same as parallelThreadNumber;
but multi-thread search need frequent random disk reads when matchBlockSize
is small, so some times multi-thread maybe much slower than single-thread!
if (searchThreadNumber<=1) then to close multi-thread search mode.
-c-compressType[-compressLevel]
set outDiffFile Compress type, DEFAULT uncompress;
for resave diffFile,recompress diffFile to outDiffFile by new set;
support compress type & level & dict:
-c-zlib[-{1..9}[-dictBits]] DEFAULT level 9
dictBits can 9--15, DEFAULT 15.
support run by multi-thread parallel, fast!
-c-bzip2[-{1..9}] (or -bz2) DEFAULT level 9
-c-pbzip2[-{1..9}] (or -pbz2) DEFAULT level 8
support run by multi-thread parallel, fast!
WARNING: code not compatible with it compressed by -c-bzip2!
and code size may be larger than if it compressed by -c-bzip2.
-c-lzma[-{0..9}[-dictSize]] DEFAULT level 7
dictSize can like 4096 or 4k or 4m or 128m etc..., DEFAULT 8m
support run by 2-thread parallel.
-c-lzma2[-{0..9}[-dictSize]] DEFAULT level 7
dictSize can like 4096 or 4k or 4m or 128m etc..., DEFAULT 8m
support run by multi-thread parallel, fast!
WARNING: code not compatible with it compressed by -c-lzma!
-c-zstd[-{0..22}[-dictBits]] DEFAULT level 20
dictBits can 10--31, DEFAULT 23.
support run by multi-thread parallel, fast!
-C-checksumType
set outDiffFile Checksum type for directory diff, DEFAULT -C-fadler64;
support checksum type:
-C-no no checksum
-C-crc32
-C-fadler64 DEFAULT
-C-md5
-n-maxOpenFileNumber
limit Number of open files at same time when stream directory diff;
maxOpenFileNumber>=8, DEFAULT -n-48, the best limit value by different
operating system.
-g#ignorePath[#ignorePath#...]
set iGnore path list when Directory Diff; ignore path list such as:
#.DS_Store#desktop.ini#*thumbs*.db#.git*#.svn/#cache_*/00*11/*.tmp
# means separator between names; (if char # in name, need write #: )
* means can match any chars in name; (if char * in name, need write *: );
/ at the end of name means must match directory;
-g-old#ignorePath[#ignorePath#...]
set iGnore path list in oldPath when Directory Diff;
if oldFile can be changed, need add it in old ignore list;
-g-new#ignorePath[#ignorePath#...]
set iGnore path list in newPath when Directory Diff;
in general, new ignore list should is empty;
-M#outManifestTxtFile
create a Manifest file for inputPath; it is a text file, saved infos of
all files and directoriy list in inputPath; this file while be used in
manifest diff, support re-checksum data by manifest diff;
can be used to protect historical versions be modified!
-M-old#oldManifestFile
oldManifestFile is created from oldPath; if no oldPath not need -M-old;
-M-new#newManifestFile
newManifestFile is created from newPath;
-D force run Directory diff between two files; DEFAULT (no -D) run
directory diff need oldPath or newPath is directory.
-d Diff only, do't run patch check, DEFAULT run patch check.
-t Test only, run patch check, patch(oldPath,testDiffFile)==newPath ?
-f Force overwrite, ignore write path already exists;
DEFAULT (no -f) not overwrite and then return error;
if used -f and write path is exist directory, will always return error.
--patch
swap to hpatchz mode.
-v output Version info.
-h (or -?)
output usage info.
```
## **patch** command line usage:
patch usage: **hpatchz** [options] **oldPath diffFile outNewPath**
uncompress usage: **hpatchz** [options] **"" diffFile outNewPath**
create SFX: **hpatchz** [-X-exe#selfExecuteFile] **diffFile -X#outSelfExtractArchive**
run SFX: **selfExtractArchive** [options] **oldPath -X outNewPath**
extract SFX: **selfExtractArchive** (same as: selfExtractArchive -f "" -X "./")
```
memory options:
-s[-cacheSize]
DEFAULT -s-4m; oldPath loaded as Stream;
cacheSize can like 262144 or 256k or 512m or 2g etc....
requires (cacheSize + 4*decompress buffer size)+O(1) bytes of memory.
if diffFile is single compressed diffData(created by hdiffz -SD-stepSize), then requires
(cacheSize+ stepSize + 1*decompress buffer size)+O(1) bytes of memory;
if diffFile is created by hdiffz -BSD,bsdiff4, hdiffz -VCD,xdelta3,open-vcdiff, then requires
(cacheSize + 3*decompress buffer size)+O(1) bytes of memory;
if diffFile is VCDIFF: if created by hdiffz -VCD, then recommended patch by -s;
if created by xdelta3,open-vcdiff, then recommended patch by -m.
-m oldPath all loaded into Memory;
requires (oldFileSize + 4*decompress buffer size)+O(1) bytes of memory.
if diffFile is single compressed diffData(created by hdiffz -SD-stepSize), then requires
(oldFileSize+ stepSize + 1*decompress buffer size)+O(1) bytes of memory.
if diffFile is created by hdiffz -BSD,bsdiff4, then requires
(oldFileSize + 3*decompress buffer size)+O(1) bytes of memory.
if diffFile is VCDIFF(created by hdiffz -VCD,xdelta3,open-vcdiff), then requires
(sourceWindowSize+targetWindowSize + 3*decompress buffer size)+O(1) bytes of memory.
special options:
-C-checksumSets
set Checksum data for directory patch, DEFAULT -C-new-copy;
checksumSets support (can choose multiple):
-C-diff checksum diffFile;
-C-old checksum old reference files;
-C-new checksum new files edited from old reference files;
-C-copy checksum new files copy from old same files;
-C-no no checksum;
-C-all same as: -C-diff-old-new-copy;
-C-no or -C-new
if diffFile is VCDIFF, then to close or open checksum, DEFAULT -C-new.
-n-maxOpenFileNumber
limit Number of open files at same time when stream directory patch;
maxOpenFileNumber>=8, DEFAULT -n-24, the best limit value by different
operating system.
-f Force overwrite, ignore write path already exists;
DEFAULT (no -f) not overwrite and then return error;
support oldPath outNewPath same path!(patch to tempPath and overwrite old)
if used -f and outNewPath is exist file:
if patch output file, will overwrite;
if patch output directory, will always return error;
if used -f and outNewPath is exist directory:
if patch output file, will always return error;
if patch output directory, will overwrite, but not delete
needless existing files in directory.
-v output Version info.
-h (or -?)
output usage info.
```
---
## library API usage:
all **diff**&**patch** function in file: `libHDiffPatch/HDiff/diff.h` & `libHDiffPatch/HPatch/patch.h`
**dir_diff()** & **dir patch** in: `dirDiffPatch/dir_diff/dir_diff.h` & `dirDiffPatch/dir_patch/dir_patch.h`
### manual:
* **create diff**(in newData,in oldData,out diffData);
release the diffData for update oldData.
* **patch**(out newData,in oldData,in diffData);
ok , get the newData.
### v1 API, uncompressed diffData:
* **create_diff()**
* **patch()**
* **patch_stream()**
* **patch_stream_with_cache()**
### v2 API, compressed diffData:
* **create_compressed_diff()**
* **create_compressed_diff_stream()**
* **resave_compressed_diff()**
* **patch_decompress()**
* **patch_decompress_with_cache()**
* **patch_decompress_mem()**
### v3 API, **diff**&**patch** between directories(folder):
* **dir_diff()**
* **TDirPatcher_\*()** functions with **struct TDirPatcher**
### v4 API, single compressed diffData:
* **create_single_compressed_diff()**
* **create_single_compressed_diff_stream()**
* **resave_single_compressed_diff()**
* **patch_single_stream()**
* **patch_single_stream_mem()**
* **patch_single_compressed_diff()**
* **patch_single_stream_diff()**
#### hpatch lite API, optimized hpatch on MCU,NB-IoT... (demo [HPatchLite](https://github.com/sisong/HPatchLite)):
* **create_lite_diff()**
* **hpatch_lite_open()**
* **hpatch_lite_patch()**
#### bsdiff wrapper API:
* **create_bsdiff()**
* **create_bsdiff_stream()**
* **bspatch_with_cache()**
#### vcdiff wrapper API:
* **create_vcdiff()**
* **create_vcdiff_stream()**
* **vcpatch_with_cache()**
#### hsynz API, diff&patch by sync (demo [hsynz](https://github.com/sisong/hsynz)):
* **create_sync_data()**
* **create_dir_sync_data()**
* **sync_patch()**
* **sync_patch_...()**
* **sync_local_diff()**
* **sync_local_diff_...()**
* **sync_local_patch()**
* **sync_local_patch_...()**
---
## HDiffPatch vs BsDiff & xdelta:
case list([download from OneDrive](https://1drv.ms/u/s!Aj8ygMPeifoQgUIZxYac5_uflNoN)):
| |newFile <-- oldFile|newSize|oldSize|
|----:|:----|----:|----:|
|1|7-Zip_22.01.win.tar <-- 7-Zip_21.07.win.tar|5908992|5748224|
|2|Chrome_107.0.5304.122-x64-Stable.win.tar <-- 106.0.5249.119|278658560|273026560|
|3|cpu-z_2.03-en.win.tar <-- cpu-z_2.02-en.win.tar|8718336|8643072|
|4|curl_7.86.0.src.tar <-- curl_7.85.0.src.tar|26275840|26030080|
|5|douyin_1.5.1.mac.tar <-- douyin_1.4.2.mac.tar|407940608|407642624|
|6|Emacs_28.2-universal.mac.tar <-- Emacs_27.2-3-universal.mac.tar|196380160|257496064|
|7|FFmpeg-n_5.1.2.src.tar <-- FFmpeg-n_4.4.3.src.tar|80527360|76154880|
|8|gcc_12.2.0.src.tar <-- gcc_11.3.0.src.tar|865884160|824309760|
|9|git_2.33.0-intel-universal-mavericks.mac.tar <-- 2.31.0|73302528|70990848|
|10|go_1.19.3.linux-amd64.tar <-- go_1.19.2.linux-amd64.tar|468835840|468796416|
|11|jdk_x64_mac_openj9_16.0.1_9_openj9-0.26.0.tar <-- 9_15.0.2_7-0.24.0|363765760|327188480|
|12|jre_1.8.0_351-linux-x64.tar <-- jre_1.8.0_311-linux-x64.tar|267796480|257996800|
|13|linux_5.19.9.src.tar <-- linux_5.15.80.src.tar|1269637120|1138933760|
|14|Minecraft_175.win.tar <-- Minecraft_172.win.tar|166643200|180084736|
|15|OpenOffice_4.1.13.mac.tar <-- OpenOffice_4.1.10.mac.tar|408364032|408336896|
|16|postgresql_15.1.src.tar <-- postgresql_14.6.src.tar|151787520|147660800|
|17|QQ_9.6.9.win.tar <-- QQ_9.6.8.win.tar|465045504|464837120|
|18|tensorflow_2.10.1.src.tar <-- tensorflow_2.8.4.src.tar|275548160|259246080|
|19|VSCode-win32-x64_1.73.1.tar <-- VSCode-win32-x64_1.69.2.tar|364025856|340256768|
|20|WeChat_3.8.0.41.win.tar <-- WeChat_3.8.0.33.win.tar|505876992|505018368|
**test PC**: Windows11, CPU Ryzen 5800H, SSD Disk, Memroy 8G*2 DDR4 3200MHz
**Program version**: HDiffPatch4.6.0, hsynz 0.9.1, BsDiff4.3, xdelta3.1 zstd1.5.2
**test Program**:
**xdelta** diff with `-S lzma -e -9 -n -f -s {old} {new} {pat}`
**xdelta** patch with `-d -f -s {old} {pat} {new}`
add **hpatchz** test: `hpatchz -m -f {old} {xdelta3-pat} {new}`
**xdelta -B** diff with `-S lzma -B {oldSize} -e -9 -n -f -s {old} {new} {pat}`
**xdelta -B** patch with `-B {oldSize} -d -f -s {old} {pat} {new}`
add **hpatchz** test: `hpatchz -m -f {old} {xdelta3-B-pat} {new}`
**bsdiff** diff with `{old} {new} {pat}`
**bspatch** patch with `{old} {new} {pat}`
add **hpatchz** test: `hpatchz -m -f {old} {bsdiff-pat} {new}`
**hdiffz -BSD** diff with `-m-6 -BSD -d -f -p-1 {old} {new} {pat}`
**hdiffz -zlib** diff with `-m-6 -SD -d -f -p-1 -c-zlib-9 {old} {new} {pat}`
**hdiffz -lzma2** diff with `-m-6 -SD -d -f -p-1 -c-lzma2-9-16m {old} {new} {pat}`
**hdiffz -zstd** diff with `-m-6 -SD -d -f -p-1 -c-zstd-21-24 {old} {new} {pat}`
**hdiffz -s -zlib** diff with `-s-64 -SD -d -f -p-1 -c-zlib-9 {old} {new} {pat}`
**hdiffz -s -lzma2** diff with `-s-64 -SD -d -f -p-1 -c-lzma2-9-16m {old} {new} {pat}`
**hdiffz -s -zstd** diff with `-s-64 -SD -d -f -p-1 -c-zstd-21-24 {old} {new} {pat}`
all **hdiffz** add test with -p-8
**hpatchz** patch with `-s-3m -f {old} {pat} {new}`
add **zstd --patch-from** diff with `--ultra -21 --long=24 -f --patch-from={old} {new} -o {pat}`
zstd patch with `-d -f --memory=2047MB --patch-from={old} {pat} -o {new}`
add **hsynz** test, make sync info by `hsync_make -s-2k {new} {out_newi} {out_newz}`,
client sync diff&patch by `hsync_demo {old} {newi} {newz} {out_new} -p-1`
**hsynz p1 -zlib** run hsync_make with `-p-1 -c-zlib-9`
**hsynz p8 -zlib** run hsync_make with `-p-8 -c-zlib-9` (run `hsync_demo` with `-p-8`)
**hsynz p1 -zstd** run hsync_make with `-p-1 -c-zstd-21-24`
**hsynz p8 -zstd** run hsync_make with `-p-8 -c-zstd-21-24` (run `hsync_demo` with `-p-8`)
**test result average**:
|Program|compress|diff mem|speed|patch mem|max mem|speed|
|:----|----:|----:|----:|----:|----:|----:|
|bzip2-9 |33.67%||16.8MB/s|||44MB/s|
|zlib-9 |36.53%||15.9MB/s|||421MB/s|
|lzma2-9-16m |25.85%||3.9MB/s|||162MB/s|
|zstd-21-24 |27.21%||2.7MB/s|||619MB/s|
||
|zstd --patch-from|7.96%|2798M|2.4MB/s|631M|2303M|647MB/s|
|xdelta3|13.60%|409M|4.7MB/s|86M|102M|95MB/s|
|xdelta3 +hpatchz -m|13.60%|409M|4.7MB/s|72M|82M|280MB/s|
|xdelta3 -B|9.63%|2282M|7.3MB/s|460M|2070M|159MB/s|
|xdelta3 -B +hpatchz -m|9.63%|2282M|7.3MB/s|317M|1100M|345MB/s|
|bsdiff |8.17%|2773M|1.9MB/s|637M|2312M|121MB/s|
|bsdiff +hpatchz -m|8.17%|2773M|1.9MB/s|321M|1101M|141MB/s|
|hdiffz p1 -BSD|7.72%|1215M|10.9MB/s|14M|14M|124MB/s|
|hdiffz p8 -BSD|7.72%|1191M|22.0MB/s|14M|14M|123MB/s|
|hdiffz p1 -zlib|7.79%|1214M|11.6MB/s|4M|4M|415MB/s|
|hdiffz p8 -zlib|7.79%|1191M|30.5MB/s|4M|4M|409MB/s|
|hdiffz p1 -lzma2|6.44%|1212M|9.2MB/s|17M|20M|312MB/s|
|hdiffz p8 -lzma2|6.44%|1192M|23.2MB/s|17M|20M|309MB/s|
|hdiffz p1 -zstd|6.74%|1217M|9.0MB/s|16M|21M|422MB/s|
|hdiffz p8 -zstd|6.74%|1531M|16.7MB/s|16M|21M|418MB/s|
|hdiffz -s p1 -BSD|11.96%|91M|33.3MB/s|14M|14M|105MB/s|
|hdiffz -s p8 -BSD|11.96%|95M|40.6MB/s|14M|14M|105MB/s|
|hdiffz -s p1 -zlib|12.52%|90M|35.2MB/s|4M|4M|439MB/s|
|hdiffz -s p8 -zlib|12.53%|95M|104.4MB/s|4M|4M|434MB/s|
|hdiffz -s p1 -lzma2|9.11%|170M|13.7MB/s|17M|20M|289MB/s|
|hdiffz -s p8 -lzma2|9.13%|370M|34.7MB/s|17M|20M|286MB/s|
|hdiffz -s p1 -zstd|9.60%|195M|10.9MB/s|18M|21M|454MB/s|
|hdiffz -s p8 -zstd|9.60%|976M|17.1MB/s|18M|21M|462MB/s|
|hsynz p1 -zlib|20.05%|6M|14.3MB/s|6M|21M|172MB/s|
|hsynz p8 -zlib|20.05%|30M|89.8MB/s|13M|29M|254MB/s|
|hsynz p1 -zstd|14.90%|532M|1.3MB/s|24M|35M|192MB/s|
|hsynz p8 -zstd|14.90%|3349M|5.1MB/s|24M|35M|301MB/s|
## input Apk Files for test:
case list:
| |app|newFile <-- oldFile|newSize|oldSize|
|----:|:---:|:----|----:|----:|
|1|<img src="https://github.com/sisong/sfpatcher/raw/master/img/cn.wps.moffice_eng.png" width="36">|cn.wps.moffice_eng_13.30.0.apk <-- 13.29.0|95904918|94914262|
|2|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.achievo.vipshop.png" width="36">|com.achievo.vipshop_7.80.2.apk <-- 7.79.9|127395632|120237937|
|3|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.adobe.reader.png" width="36">|com.adobe.reader_22.9.0.24118.apk <-- 22.8.1.23587|27351437|27087718|
|4|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.alibaba.android.rimet.png" width="36">|com.alibaba.android.rimet_6.5.50.apk <-- 6.5.45|195314449|193489159|
|5|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.amazon.mShop.android.shopping.png" width="36">|com.amazon.mShop.android.shopping_24.18.2.apk <-- 24.18.0|76328858|76287423|
|6|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.baidu.BaiduMap.png" width="36">|com.baidu.BaiduMap_16.5.0.apk <-- 16.4.5|131382821|132308374|
|7|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.dragon.read.png" width="36">|com.dragon.read_5.5.3.33.apk <-- 5.5.1.32|45112658|43518658|
|8|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.ebay.mobile.png" width="36">|com.ebay.mobile_6.80.0.1.apk <-- 6.79.0.1|61202587|61123285|
|9|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.eg.android.AlipayGphone.png" width="36">|com.eg.android.AlipayGphone_10.3.0.apk <-- 10.2.96|122073135|119046208|
|10|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.google.android.apps.translate.png" width="36">|com.google.android.apps.translate_6.46.0.apk <-- 6.45.0|48892967|48843378|
|11|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.google.android.googlequicksearchbox.png" width="36">|com.google.android.googlequicksearchbox_13.38.11.apk <-- 13.37.10|190539272|189493966|
|12|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.jingdong.app.mall.png" width="36">|com.jingdong.app.mall_11.3.2.apk <-- 11.3.0|101098430|100750191|
|13|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.netease.cloudmusic.png" width="36">|com.netease.cloudmusic_8.8.45.apk <-- 8.8.40|181914846|181909451|
|14|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.reddit.frontpage.png" width="36">|com.reddit.frontpage_2022.36.0.apk <-- 2022.34.0|50205119|47854461|
|15|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.sankuai.meituan.takeoutnew.png" width="36">|com.sankuai.meituan.takeoutnew_7.94.3.apk <-- 7.92.2|74965893|74833926|
|16|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.sankuai.meituan.png" width="36">|com.sankuai.meituan_12.4.207.apk <-- 12.4.205|93613732|93605911|
|17|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.sina.weibo.png" width="36">|com.sina.weibo_12.10.0.apk <-- 12.9.5|156881776|156617913|
|18|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.smile.gifmaker.png" width="36">|com.smile.gifmaker_10.8.40.27845.apk <-- 10.8.30.27728|102403847|101520138|
|19|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.ss.android.article.news.png" width="36">|com.ss.android.article.news_9.0.7.apk <-- 9.0.6|54444003|53947221|
|20|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.ss.android.ugc.aweme.png" width="36">|com.ss.android.ugc.aweme_22.6.0.apk <-- 22.5.0|171683897|171353597|
|21|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.taobao.taobao.png" width="36">|com.taobao.taobao_10.18.10.apk <-- 10.17.0|117218670|117111874|
|22|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.tencent.mm.png" width="36">|com.tencent.mm_8.0.28.apk <-- 8.0.27|266691829|276603782|
|23|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.tencent.mobileqq.png" width="36">|com.tencent.mobileqq_8.9.15.apk <-- 8.9.13|311322716|310529631|
|24|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.tencent.mtt.png" width="36">|com.tencent.mtt_13.2.0.0103.apk <-- 13.2.0.0045|97342747|97296757|
|25|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.tripadvisor.tripadvisor.png" width="36">|com.tripadvisor.tripadvisor_49.5.apk <-- 49.3|28744498|28695346|
|26|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.twitter.android.png" width="36">|com.twitter.android_9.61.0.apk <-- 9.58.2|36141840|35575484|
|27|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.ubercab.png" width="36">|com.ubercab_4.442.10002.apk <-- 4.439.10002|69923232|64284150|
|28|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.ximalaya.ting.android.png" width="36">|com.ximalaya.ting.android_9.0.66.3.apk <-- 9.0.62.3|115804845|113564876|
|29|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.xunmeng.pinduoduo.png" width="36">|com.xunmeng.pinduoduo_6.30.0.apk <-- 6.29.1|30896833|30951567|
|30|<img src="https://github.com/sisong/sfpatcher/raw/master/img/com.youdao.dict.png" width="36">|com.youdao.dict_9.2.29.apk <-- 9.2.28|110624682|110628778|
|31|<img src="https://github.com/sisong/sfpatcher/raw/master/img/org.mozilla.firefox.png" width="36">|org.mozilla.firefox_105.2.0.apk <-- 105.1.0|83078464|83086656|
|32|<img src="https://github.com/sisong/sfpatcher/raw/master/img/tv.danmaku.bili.png" width="36">|tv.danmaku.bili_7.1.0.apk <-- 7.0.0|104774723|104727005|
**changed test Program**:
**hdiffz ...** `-m-6 -SD` changed to `-m-1 -SD-2m -cache`, `-s-64 -SD` changed to `-s-16 -SD-2m`
**hdiffz ...** lzma2 dict size `16m` changed to `8m`, zstd dict bit `24` changed to `23`
**hsynz ...** make `-s-2k` changed to `-s-1k`
add **hsynz p1**, **hsynz p8** make without compressor
add **archive-patcher** v1.0, diff with `--generate --old {old} --new {new} --patch {pat}`,
patch with `--apply --old {old} --patch {pat} --new {new}`
NOTE: archive-patcher's delta file compressed by lzma2-9-8m, diff&patch time not include compress&decompress delta file's memory&time.
**sfpatcher -1 -zstd** v1.1.0 diff with `-o-1 -c-zstd-21-23 -m-1 -step-3m -lp-512k -p-8 -cache -d {old} {new} {pat}`
**sfpatcher -2 -lzma2** diff with `-o-2 -c-lzma2-9-4m -m-1 -step-2m -lp-8m -p-8 -cache -d {old} {new} {pat}`
sfpatcher patch with `-lp -p-8 {old} {pat} {new}`
( [archive-patcher](https://github.com/google/archive-patcher), [sfpatcher](https://github.com/sisong/sfpatcher) optimized diff&patch between apk files )
**test result average**:
|Program|compress|diff mem|speed|patch mem|max mem|speed|
|:----|----:|----:|----:|----:|----:|----:|
|zstd --patch-from|53.18%|2199M|2.9MB/s|209M|596M|624MB/s|
|xdelta3|54.51%|422M|2.5MB/s|98M|99M|103MB/s|
|xdelta3 +hpatchz -m|54.51%|422M|2.5MB/s|70M|81M|331MB/s|
|bsdiff|53.84%|931M|1.0MB/s|218M|605M|40MB/s|
|bsdiff +hpatchz -s|53.84%|931M|1.0MB/s|14M|14M|40MB/s|
|hdiffz p1 -BSD|53.69%|509M|4.9MB/s|14M|14M|40MB/s|
|hdiffz p8 -BSD|53.70%|514M|9.2MB/s|14M|14M|40MB/s|
|hdiffz p1 -zlib|53.21%|509M|6.2MB/s|5M|6M|382MB/s|
|hdiffz p8 -zlib|53.22%|514M|18.2MB/s|5M|6M|380MB/s|
|hdiffz p1 -lzma2|52.93%|525M|3.3MB/s|21M|22M|195MB/s|
|hdiffz p8 -lzma2|52.94%|557M|11.2MB/s|21M|22M|196MB/s|
|hdiffz p1 -zstd|53.04%|537M|4.2MB/s|21M|22M|428MB/s|
|hdiffz p8 -zstd|53.05%|1251M|7.8MB/s|21M|22M|433MB/s|
|hdiffz -s p1 -zlib|53.73%|118M|20.0MB/s|4M|6M|380MB/s|
|hdiffz -s p8 -zlib|53.73%|122M|62.5MB/s|4M|6M|378MB/s|
|hdiffz -s p1 -lzma2|53.30%|197M|5.2MB/s|20M|22M|195MB/s|
|hdiffz -s p8 -lzma2|53.30%|309M|20.9MB/s|20M|22M|195MB/s|
|hdiffz -s p1 -zstd|53.44%|221M|8.1MB/s|20M|22M|452MB/s|
|hdiffz -s p8 -zstd|53.44%|1048M|11.1MB/s|20M|22M|448MB/s|
|hsynz p1|62.43%|4M|1243.4MB/s|4M|10M|172MB/s|
|hsynz p8|62.43%|25M|1902.6MB/s|12M|18M|293MB/s|
|hsynz p1 -zlib|58.67%|5M|18.5MB/s|4M|11M|170MB/s|
|hsynz p8 -zlib|58.67%|29M|107.6MB/s|12M|19M|285MB/s|
|hsynz p1 -zstd|57.92%|534M|2.2MB/s|24M|28M|173MB/s|
|hsynz p8 -zstd|57.92%|3434M|7.6MB/s|24M|28M|294MB/s|
|archive-patcher +lzma2|31.68%|3278M|0.7MB/s|759M|788M|15MB/s|
|sfpatcher -1 p1 -zstd|31.08%|818M|1.8MB/s|15M|19M|154MB/s|
|sfpatcher -1 p8 -zstd|31.07%|1026M|3.1MB/s|18M|25M|307MB/s|
|sfpatcher -2 p1 -lzma2|24.11%|976M|1.6MB/s|15M|20M|28MB/s|
|sfpatcher -2 p8 -lzma2|24.15%|967M|3.3MB/s|20M|26M|79MB/s|
---
## Contact
housisong@hotmail.com
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