[terminfo-db] Add a builder for the terminfo database (#9165)

This uses the directory-based database rather than the single Berkeley
database (terminfo.db). The license is from ncurses, which is close
enough; see https://invisible-island.net/ncurses/terminfo.src.html.

Co-authored-by: Mosè Giordano <[email protected]>

T/TermInfoDB/build_tarballs.jl

@@ -0,0 +1,84 @@
+using BinaryBuilder
+
+# This is based on https://www.freshports.org/misc/terminfo-db/
+name = "TermInfoDB"
+version = v"2023.12.9"
+
+v = string(version.major, lpad(version.minor, 2, '0'), lpad(version.patch, 2, '0'))
+sources = [
+    FileSource("https://invisible-island.net/archives/ncurses/current/terminfo-$v.src.gz",
+               "2debcf2fd689988d44558bcd8a26a104b96542ffc9540f19e2586b3aeecd1c79"),
+    DirectorySource("./bundled"),
+]
+
+script = raw"""
+cd ${WORKSPACE}/srcdir/
+
+# Adopting the wisdom of https://mywiki.wooledge.org/ParsingLs (🙏 Mosè)
+shopt -s nullglob
+
+gunzip terminfo-*
+mkdir -p "${prefix}/share/terminfo"
+tic -sx -o "${prefix}/share/terminfo" ./terminfo-*
+
+pushd "${prefix}/share/terminfo/"
+
+# The terminfo filesystem-based database contains both upper- and lowercase directory
+# names, which presents a problem for case-insensitive filesystems. Let's rename all
+# files and directories to lowercase. Unfortunately, we can't just `mv` the filename
+# to its lowercase counterpart because many of these files, including but not limited
+# to those whose names differ only by case, are actually hard links to one another
+# (they have the same inode) so `mv` sees it as a no-op and just does nothing.
+# Hence... this.
+for dir in *; do
+    lcdir="${dir,,}"
+    mkdir -p "${lcdir}"
+    for file in ${dir}/*; do
+        file=$(basename "${file}")
+        lcfile="${file,,}"
+        if [ "${dir}/${file}" = "${lcdir}/${lcfile}" ]; then
+            # Already all lowercase, nothing to do
+            continue
+        fi
+        mv -f "${dir}/${file}" "${lcdir}/${lcfile}.TEMP"
+        rm -f "${lcdir}/${lcfile}"
+        mv -f "${lcdir}/${lcfile}.TEMP" "${lcdir}/${lcfile}"
+        if [ -e "${dir}/${file}" ] || [ -e "${lcdir}/${lcfile}.TEMP" ]; then
+            echo "ERROR: '${dir}/${file}' not successfully renamed to lowercase!!!"
+            exit 1
+        fi
+    done
+    if [ -z "$(ls -A "${dir}")" ]; then
+        rm -rf "${dir}"
+    fi
+done
+
+# I'm not about to list the entire contents out as `FileProduct`s, so we'll do our
+# own mini-audit by checking that the expected directories exist. We know each is
+# non-empty based on the above.
+dirs=(*)
+expected=(1 2 3 4 5 6 7 8 9 a b c d e f g h i j k l m n o p q r s t u v w x z)
+if [ ! -z "$(echo ${dirs[@]} ${expected[@]} | tr ' ' '\n' | sort | uniq -u)" ]; then
+    echo "ERROR: Build did not produce the expected set of directories!!!"
+    exit 1
+fi
+
+popd
+
+install_license "${WORKSPACE}/srcdir/COPYING"
+"""
+
+platforms = [AnyPlatform()]
+
+# I'd rather not list out >2k individual `FileProduct`s so let's just call the entry
+# for xterm our "product" and hope the rest are there
+products = [
+    FileProduct("share/terminfo/x/xterm", :terminfo_xterm),
+]
+
+dependencies = [
+    HostBuildDependency("Ncurses_jll"),  # for `tic`
+]
+
+build_tarballs(ARGS, name, version, sources, script, platforms, products, dependencies;
+               julia_compat="1.6")

T/TermInfoDB/bundled/COPYING

@@ -0,0 +1,29 @@
+Copyright 2018-2022,2023 Thomas E. Dickey
+Copyright 1998-2017,2018 Free Software Foundation, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a
+copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, distribute with modifications, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included
+in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
+OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
+DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
+OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
+THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+
+Except as contained in this notice, the name(s) of the above copyright
+holders shall not be used in advertising or otherwise to promote the
+sale, use or other dealings in this Software without prior written
+authorization.
+
+-- vile:txtmode fc=72
+-- $Id: COPYING,v 1.12 2023/01/07 17:55:53 tom Exp $