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__fish_print_packages: Better parse apt-cache's weird format

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Fixes #7521.
This commit is contained in:
Fabian Homborg 2020-12-04 16:43:15 +01:00
parent b9b84e63bf
commit 672fdde1f0
1 changed files with 8 additions and 2 deletions
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10
share/functions/__fish_print_packages.fish
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@ -23,11 +23,17 @@ function __fish_print_packages
# (It is safe to use `sed -r` here as we are guaranteed to be on a GNU platform
# if apt-cache was found. Using unicode reserved range in `fish/tr` and the
# little-endian bytecode equivalent in `sed`. Supports localization.)
apt-cache --no-generate show '.*'(commandline -ct)'.*' 2>/dev/null | sed -r '/^(Package|Description-?[a-z]{0,2}):/!d;s/Package: (.*)/\1\t/g;s/Description-?[^:]*: (.*)/\1\xee\x80\x80\x0a/g' | tr -d \n | tr -s \uE000 \n | uniq
#
# Note: This can include "Description:" fields which we need to include,
# "Description-en_GB" (or another locale code) fields which we need to include
# as well as "Description-md5" fields which we absolutely do *not* want to include
# The regex doesn't allow numbers, so unless someone makes a hash algorithm without a number in the name,
# we're safe. (yes, this should absolutely have a better format).
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\xee\x80\x80\x0a/g' | tr -d \n | tr -s \uE000 \n | uniq
return
else
set -l packages (dpkg --get-selections | string replace -fr '(\S+)\s+install' "\$1" | string match -e (commandline -ct))
apt-cache --no-generate show $packages 2>/dev/null | sed -r '/^(Package|Description-?[a-z]{0,2}):/!d;s/Package: (.*)/\1\t/g;s/Description-?[^:]*: (.*)/\1\xee\x80\x80\x0a/g' | tr -d \n | tr -s \uE000 \n | uniq
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\xee\x80\x80\x0a/g' | tr -d \n | tr -s \uE000 \n | uniq
return
end