xmlstarlet

xmlstarlet

query and edit XML from the shell

curl -fsSL https://unflab.app/get | sh -s -- xmlstarlet

Installs to ~/.local/bin. Add --prefix /usr/local/bin to
put it somewhere else, or --uninstall to remove it.

Why it’s here

No dependency problem to solve — it’s here so it installs the same way as everything else.

Details

Built from that exact tarball, with its SHA-256 pinned in the
recipe. The binary links against nothing outside /usr/lib
and /System/, checked in CI before release.

xmlstarlet is a command-line XML toolkit: query with XPath, transform
with XSLT, validate, format, and edit XML in place — the same kind of job
jq does for JSON.

xmlstarlet sel -t -v '//book/title' catalogue.xml
xmlstarlet ed -u '//price' -v '9.99' catalogue.xml
xmlstarlet fo --indent-tab messy.xml
xmlstarlet val --err schema.xsd document.xml

man xmlstarlet documents the full command set.

The command name

Upstream builds the binary as xml. That’s a very generic name to put on
your PATH, so this package installs it as xmlstarlet and adds
xml as a symlink only if nothing else on your machine already
provides that name. Both work; xmlstarlet always does.

Use --no-plain at install time if you’d rather not have the xml
alias at all.

Install

./install.sh                      # into ~/.local/bin
./install.sh --prefix /usr/local/bin
./install.sh --uninstall

About this build

macOS ships libxml2, libxslt and libexslt in /usr/lib, so this links
against the system’s own copies — nothing is bundled and nothing is
statically linked.

Upstream has been dormant since 2014 and the sources no longer compile
against a current toolchain without help: libxml2 later added a const
qualifier to a callback signature, which newer clang treats as an error
rather than a warning. The recipe disables that specific diagnostic
rather than patching the source, since the qualifier doesn’t affect the
ABI.

Upstream

• Home: https://xmlstar.sourceforge.net/
• Version: 1.6.1
• Licence: MIT (see LICENSE)

xmlstarlet is Mikhail Grushinskiy’s work. unflab only compiles and
packages it.