sunlark

Scheme binding for Sealark (Starlark parser)

quickstart

[WORKSPACE.bazel]

load("@bazel_tools//tools/build_defs/repo:git.bzl", "git_repository")

git_repository(
    name = "sunlark",
    remote = "https://github.com/obazl/sunlark",
    branch = "main",
)
load("@sunlark//:WORKSPACE.bzl", "cc_fetch_repos")
cc_fetch_repos() ## fetches sealark, rules_cc, rules_foreign_cc

## The following load statement sets up some common toolchains for building targets.
## Needed for sealark; for more details, please see:
##  https://bazelbuild.github.io/rules_foreign_cc/0.5.1/flatten.html#rules_foreign_cc_dependencies
load("@rules_foreign_cc//foreign_cc:repositories.bzl", "rules_foreign_cc_dependencies")

rules_foreign_cc_dependencies(
    # register toolchains for native build tools installed on exec host?
    register_preinstalled_tools=False,
    # register toolchains that build tools from source?
    register_built_tools=False
)

Run a repl: $ bazel run @sunlark//repl

Batch process a file:

1. Create .sunlark.d/edit.scm, containing a procedure named sunlark-ast-handler that takes one AST node argument; for example:

[.sunlark.d/edit.scm]

(define (sunlark-ast-handler pkg)
  (display (string-append "running local sunlark-ast-handler proc"))
  (newline)
  (display (format #f "scheme load path: ~S" *load-path*))
  (newline)
  (display (format #f "(sunlark-node? pkg) => ~A"
                   (sunlark-node? pkg)))
  (newline)
  (display (format #f "(pkg :package?) => ~A"
                   (pkg :package?)))
  (newline) (newline)
  (display (sunlark->string pkg :starlark))
  (newline))

Add edit operations to this routine, then reformat and save changes: (pkg :format) (pkg :save).

2. Run the edit: $ bazel run @sunlark//edit -- -f path/to/BUILD.bazel

misc