shfmt

shfmt

format shell scripts

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

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.

shfmt formats shell scripts — a gofmt for sh, bash and mksh.
It parses rather than pattern-matches, so it reformats reliably and
fails loudly on a syntax error instead of mangling the file.

shfmt -w script.sh              # format in place
shfmt -d script.sh              # show a diff instead
shfmt -i 2 -ci -w script.sh     # 2-space indent, indent switch cases
shfmt -l .                      # list files that need formatting

shfmt --help lists the formatting options; -ln picks the dialect
(bash, posix, mksh) when the shebang doesn’t settle it.

Install

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

About this build

A single static binary built with CGO_ENABLED=0, so it links against
nothing but libSystem.

shfmt --version reports (unknown) in this build. It reads Go’s build
info rather than a version string compiled in, and that’s only populated
when building from a git tag or via go install. Building from a release
tarball leaves it unset, and no linker flag can fill it in. The version
you have is 3.14.0, recorded here and in the package metadata.

Upstream publishes prebuilt macOS binaries too — this package exists so
shfmt installs the same way as everything else here, not because it
was hard to get.

Only shfmt is packaged. The repository also contains gosh, which its
own source calls “a proof of concept shell”; that isn’t something to
hand anyone as a tool.

Upstream

• Home: https://github.com/mvdan/sh
• Version: 3.14.0
• Licence: BSD-3-Clause (see LICENSE)

shfmt is Daniel Martí’s work. unflab only compiles and packages it.