1PKGDELTA(8) Pacman Manual PKGDELTA(8)
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6 pkgdelta - package delta generation utility
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9 pkgdelta [options] <package1> <package2>
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12 pkgdelta is used to create package delta files between two versions of
13 the same package. These files are essentially binary patches. pacman(8)
14 can download deltas instead of full package upgrades, and use them with
15 the previous versions of packages (in the package cache) to synthesize
16 the upgraded version of the packages. This likely reduces download
17 sizes for upgrades significantly.
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19 pkgdelta requires xdelta3(1) to do its job.
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22 --max-delta-size <ratio>
23 Only create delta files if the delta is smaller than ratio *
24 package_size. Possible values: 0.0 to 2.0. Recommended values: 0.2
25 to 0.9. Default value: 0.7
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27 --min-pkg-size <size>
28 Minimal size of the package file in bytes to be considered for
29 delta creation. Default value: 1048576 bytes = 1 MiB. This may be
30 any absolute size in bytes or a human-readable value such as 4MiB
31 or 3.5MB.
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33 -q, --quiet
34 Be quiet. Do not output anything but warnings and errors.
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37 $ pkgdelta libreoffice-3.3.2-1-x86_64.pkg.tar.xz libreoffice-3.3.2-2-x86_64.pkg.tar.xz
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40 pacman(8), xdelta3(1)
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42 See the pacman website at https://www.archlinux.org/pacman/ for current
43 information on pacman and its related tools.
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46 Bugs? You must be kidding; there are no bugs in this software. But if
47 we happen to be wrong, send us an email with as much detail as possible
48 to pacman-dev@archlinux.org.
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51 Current maintainers:
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53 · Allan McRae <allan@archlinux.org>
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55 · Andrew Gregory <andrew.gregory.8@gmail.com>
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57 · Dan McGee <dan@archlinux.org>
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59 · Dave Reisner <dreisner@archlinux.org>
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61 Past major contributors:
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63 · Judd Vinet <jvinet@zeroflux.org>
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65 · Aurelien Foret <aurelien@archlinux.org>
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67 · Aaron Griffin <aaron@archlinux.org>
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69 · Xavier Chantry <shiningxc@gmail.com>
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71 · Nagy Gabor <ngaba@bibl.u-szeged.hu>
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73 For additional contributors, use git shortlog -s on the pacman.git
74 repository.
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78Pacman 5.0.2 2019-07-26 PKGDELTA(8)