Morbig

A trustworthy static parser for POSIX shell

Morbig is a parser for shell scripts written in the POSIX shell script language. It parses the scripts statically, that is without executing them, and constructs a concrete syntax tree for each of them. The concrete syntax trees are built using constructors according to the shell grammar of the POSIX standard.

Download

git clone [email protected]:colis-anr/morbig.git

License and Copyright

Please see the file COPYING.

Documentation

You can have a look at the online API documentation or build it yourself:

make doc

Are you in a hurry?

Yes? Pull our docker image:

docker pull colisanr/morbig:latest

Then, define the following shell function:

morbig () {
  D=$(cd "$(dirname "$1")"; pwd)
  B=$(basename "$1")
  docker run \
    -v "$D":/mnt \
    colisanr/morbig:latest --as simple /mnt/"$B"
}

After that, you should be able to run morbig like this:

morbig my-script.sh

This will create a JSON file named my-script.sh.sjson.

You can also build a local docker image from the root of this repository:

docker build -t morbig . # to build a docker image with morbig inside.

Now if you want to use more features of morbig, take the time to follow the building instructions of the next section.

Manual instructions

Install using OPAM

Please type opam install morbig to get the latest public release of morbig.

If you want to use the development version of morbig, read the next sections.

Dependencies

morbig depends on the following software:

• dune
• menhir
• ocaml (≥ 4.04)
• odoc (for documentation only)
• yojson and ppx_deriving_yojson
• visitors

Building

make

Installing

make install            # for opam-based environments
PREFIX=... make install # for system-wide install

Testing

make check