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https://github.com/fish-shell/fish-shell
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b4e8e5abff
GNU tr is not Unicode-aware, and was corrupting descriptions that had non-ASCII characters. Additionally, rather than using the Unicode private use characters, use the ASCII/UTF-8 record separator character as it was intended. The sed command could probably be rewritten to do all the heavy lifting here, but would be even less readable. Closes #8575.
34 lines
1.9 KiB
Fish
34 lines
1.9 KiB
Fish
function __fish_print_apt_packages
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argparse --name=__fish_print_packages i/installed -- $argv
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or return
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switch (commandline -ct)
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case '-**'
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return
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end
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type -q -f apt-cache || return 1
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if not set -q _flag_installed
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# Do not generate the cache as apparently sometimes this is slow.
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# http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=547550
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# (It is safe to use `sed -r` here as we are guaranteed to be on a GNU platform
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# if apt-cache was found.)
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# Uses the UTF-8/ASCII record separator (0x1A) character.
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#
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# Note: This can include "Description:" fields which we need to include,
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# "Description-en_GB" (or another locale code) fields which we need to include
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# as well as "Description-md5" fields which we absolutely do *not* want to include
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# The regex doesn't allow numbers, so unless someone makes a hash algorithm without a number in the name,
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# we're safe. (yes, this should absolutely have a better format).
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#
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# aptitude has options that control the output formatting, but is orders of magnitude slower
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#
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# sed could probably do all of the heavy lifting here, but would be even less readable
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apt-cache --no-generate show '.*'(commandline -ct)'.*' 2>/dev/null | sed -r '/^(Package|Description-?[a-zA-Z_]*):/!d;s/Package: (.*)/\1\t/g;s/Description-?[^:]*: (.*)/\1\x1a\n/g' | string join "" | string replace --all --regex \x1a+ \n | uniq
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return 0
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else
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set -l packages (dpkg --get-selections | string replace -fr '(\S+)\s+install' "\$1" | string match -e (commandline -ct))
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apt-cache --no-generate show $packages 2>/dev/null | sed -r '/^(Package|Description-?[a-zA-Z_]*):/!d;s/Package: (.*)/\1\t/g;s/Description-?[^:]*: (.*)/\1\x1a\n/g' | string join "" | string replace --all --regex \x1a+ \n | uniq
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return 0
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end
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end
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