Helping "apt search" become more readable.

aptsearch.zsh

#!/usr/bin/env zsh
# Highlight "apt search" and simplify for current CLI.

# Author: Maulik Mistry
# Please share support: https://www.paypal.com/paypalme/m1st0

# License: BSD License 2.0
# Copyright (c) 2025, Maulik Mistry
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#     * Redistributions of source code must retain the above copyright
#       notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above copyright
#       notice, this list of conditions and the following disclaimer in the
#       documentation and/or other materials provided with the distribution.
#     * Neither the name of the <organization> nor the
#       names of its contributors may be used to endorse or promote products
#       derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

if [ -z "$1" ]; then
  echo "Usage: $0 <SEARCH_TERM>"
  exit 1
fi

SEARCH_TERM="$1"
# Obtain the working directory so awk can work anywhere.
SCRIPT_DIR="$(dirname "$(realpath "$0")")"

apt search "$SEARCH_TERM" 2>/dev/null | awk -v term="$SEARCH_TERM" -f "$SCRIPT_DIR/highlight_apt.awk"

if [ $? -ne 0 ]; then
  echo "Error: apt search failed." >&2  # Print error to stderr
  exit 1
fi

highlight_apt.awk

# Highlight "apt search" and simplify for current CLI.

# Author: Maulik Mistry
# Please share support: https://www.paypal.com/paypalme/m1st0

# License: BSD License 2.0
# Copyright (c) 2025, Maulik Mistry
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are met:
#     * Redistributions of source code must retain the above copyright
#       notice, this list of conditions and the following disclaimer.
#     * Redistributions in binary form must reproduce the above copyright
#       notice, this list of conditions and the following disclaimer in the
#       documentation and/or other materials provided with the distribution.
#     * Neither the name of the <organization> nor the
#       names of its contributors may be used to endorse or promote products
#       derived from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
# DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
# DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
# (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
# LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

BEGIN {
    IGNORECASE = 1
    term_esc = gensub(/[][^$.*+?{}()|]/, "\\\\&", "g", tolower(term))
    pkg_pat = "[-_/]" term_esc "([-_/]|$)|^" term_esc "[-_/]"
    desc_pat = term_esc  # Remove strict word boundaries to allow inside-word matches
}

/^[^ ]/ {
    pkg = $0
    next
}

{
    # Check package name components
    split(pkg, parts, /[\/]/)
    pkg_match = 0
    for (i in parts) {
        if (tolower(parts[i]) ~ term_esc) { 
            pkg_match = 1
            break
        }
    }

    # Check description for matches
    desc_match = tolower($0) ~ desc_pat

    if (pkg_match || desc_match) {
        # Case-insensitive highlighting using gensub()
        pkg = gensub(term_esc, "\033[1;31m&\033[0m", "g", pkg)
        $0 = gensub(term_esc, "\033[1;31m&\033[0m", "g")

        print pkg
        print $0 "\n"
    }
}