oilshell.org

Oil Version 0.6.pre9

What's New

• The Release announcement has a high-level summary of changes.
• Details are in the raw git change log. Some of these changes may not affect the release tarball (e.g. tool changes).

Docs For End Users

• INSTALL. How to install OSH. This text file is also at the root of the tarball.
• OSH Quick Reference, with Examples (in progress). This document underlies the OSH help builtin. It also gives a rough overview of what features OSH implements.

Docs For Developers

• Github Wiki for oilshell/oil

Metrics

• Lines of source, counted in differented ways:
  • oil-osh-cloc. The core of Oil, as measured by the cloc tool.
  • src. The whole Oil repo organized by type of source file.
  • OPy. How much code is in the OPy toolchain?
• Lines of dependencies:
  • pydeps. Oil code plus the Python standard library.
  • nativedeps. Oil code plus A slice of CPython.
• Bytecode Metrics
  • overview - Compare OPy vs. CPython.
  • oil-with-opy - Oil compiled with OPy.
  • oil-with-cpython - Oil compiled with CPython (for comparison).
  • src-bin-ratio-with-opy - How big is the compiled output?
• Native Code Metrics
  • overview - An analysis of GCC's compilation of OVM (a subset of CPython). Bloaty provides the underlying data.
  • cpython-defs/overview - We try to ship as little of CPython as possible, and this is what's left.

Oil Tests

• Spec Tests. Test OSH behavior against that of existing shells.
• Wild Tests. Parsing and translating thousands of shell scripts with OSH.
• Unit Tests. Python unit test results.

More tests:

• Gold Tests. Comparisons against bash (using implicit assertions, no golden output.)
• osh2oil Tests. Test the conversion of OSH to Oil.
• parse-errors. A list of all parse errors.
• runtime-errors. A list of all runtime errors.
• arena. Testing an invariant for the parser.
• osh-usage. Misc tests of the osh binary.
• oshc-deps. Tests for a subcommand in progress.
• opyc. Tests for the opyc tool.

OPy Tests

The OPy compiler is used to compile Oil to bytecode, but isn't itself part of the release.

• build-oil-repo
• test-gold
• test-oil-unit-byterun
• regtest-compile
• regtest-verify-golden

Tree-shaking:

• Symbols in Oil
• Symbols in OPy

Manual Tests

• [ ] Test build and install on OS X

Benchmarks

• OSH Parser Performance. How fast does OSH parse compared to other shells?
• OSH Runtime. How fast does OSH run compared to other shells?
• Virtual Memory Baseline. How much memory do shells use at startup?
• OVM Build. How long does it take for end users to build Oil? How big is the resulting binary?