Adapted apt packages completion for ALT

share/functions/__fish_print_apt_packages.fish

@@ -9,56 +9,30 @@ function __fish_print_apt_packages
 
     set -l search_term (commandline -ct | string replace -ar '[\'"\\\\]' '' | string lower)
 
-    if ! test -f /var/lib/dpkg/status
+    if ! test -f /var/cache/apt/pkgcache.bin
         return 1
     end
 
-    if not set -q _flag_installed
-        # Do not generate the cache as apparently sometimes this is slow.
-        # http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=547550
-        # (It is safe to use `sed -r` here as we are guaranteed to be on a GNU platform
-        # if apt-cache was found.)
-        # Uses the UTF-8/ASCII record separator (0x1A) character.
-        #
-        # 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).
-        #
-        # aptitude has options that control the output formatting, but is orders of magnitude slower
-        #
-        # sed could probably do all of the heavy lifting here, but would be even less readable
-        #
-        # The `head -n 500` causes us to stop once we have 500 lines. We do it after the `sed` because
-        # Debian package descriptions can be extremely long and are hard-wrapped: texlive-latex-extra
-        # has about 2700 lines on Debian 11.
-        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/g' | head -n 2500 | string join "" | string replace --all --regex \x1a+ \n | uniq
-        return 0
-    else
-        # Do not not use `apt-cache` as it is sometimes inexplicably slow (by multiple orders of magnitude).
-        awk '
-BEGIN {
-  FS=": "
-}
-
-/^Package/ {
-  pkg=$2
-}
-
-/^Status/ {
-  installed=0
-  if ($2 ~ /(^|\s)installed/) {
-    installed=1
-  }
-}
-
-/^Description(-[a-zA-Z]+)?:/ {
-  desc=$2
-  if (installed == 1 && index(pkg, "'$search_term'") > 0) {
-    print pkg "\t" desc
-    installed=0 # Prevent multiple description translations from being printed
-  }
-}' </var/lib/dpkg/status
-    end
+    # Do not generate the cache as apparently sometimes this is slow.
+    # http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=547550
+    # (It is safe to use `sed -r` here as we are guaranteed to be on a GNU platform
+    # if apt-cache was found.)
+    # Uses the UTF-8/ASCII record separator (0x1A) character.
+    #
+    # 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).
+    #
+    # aptitude has options that control the output formatting, but is orders of magnitude slower
+    #
+    # sed could probably do all of the heavy lifting here, but would be even less readable
+    #
+    # The `head -n 500` causes us to stop once we have 500 lines. We do it after the `sed` because
+    # Debian package descriptions can be extremely long and are hard-wrapped: texlive-latex-extra
+    # has about 2700 lines on Debian 11.
+    apt-cache search --no-generate --names-only '.*'(commandline -ct)'.*' 2>/dev/null | sed 's/$/\x1a/g' | sed 's/ - /\t\n/g'|  head -n 2500 | string join "" | string replace --all --regex \x1a+ \n | uniq
+    return 0
+    
 end