Hello everyone,

This year I will work on the libbash runtime project. A short
introduction for this project:

Libbash will enable programs to use Abstract Syntax Trees(AST) to parse
and interpret *shell* scripts directly instead of using regular
expressions. Most of bash 3.2 syntax will be supported. This will be a
great benefit to programs both outside and inside Gentoo, including
Portage/Paludis and repoman.

For more information, I wrote an introduction[1] explaining its
potential usage and benchmark. There's also a home page[2] for this
project. You can find out the rationale, plan and detailed progress
there(most content comes from my GSoC proposal).

As the first weekly report, I'd like to briefly talk about our current
progress. I've been contributing to this project since March so we have
done a lot of things. Here's a summary:
  * Parser grammar improvement
  * Build system improvement(C++ hidden visibility, developer flags,
gcov, etc.)
  * Shell arithmetic
  * Variable(string, array) definition and reference
  * Variable expansion
  * Shell pattern matching
  * Compound statement(if, for, while, until, case)
  * Shell test expression
  * Command execution and substitution
  * Shell function
  * Several shell built-ins(source, let, etc.)
  * Utilities(ast_printer, reimplemented version of Paludis instruo, etc.)
For more detailed information, please visit our home page[2], my blog[5]
or our git repository[3].

Here are some resources we have:
  * CI server(not public accessible yet)
  * Agilefant server(for Scrum)
  * Test coverage report
  * Callgrind and massif target
  * Github repository[4] (latest commits)
  * Canonical repository[3] (reviewed commits)
  * Home page[2]
  * #gentoo-libbash IRC channel

Now we can generate correct metadata for 2934 ebuilds(There are 27289
in total). We will get more and more during the summer.

[1]http://qiaomuf.wordpress.com/2011/05/05/introduction-to-libbash/
[2]http://dev.gentoo.org/~qiaomuf/libbash.html
[3]http://git.overlays.gentoo.org/gitweb/?p=proj/libbash.git;a=summary
[4]https://github.com/qiaomuf/libbash
[5]http://qiaomuf.wordpress.com

-- 
Best wishes,
Mu Qiao
GnuPG fingerprint: 92B1 B0C4 8D14 F8C4 EFA5  3ACC 30B3 0DE4 17B1 57E9