# RBuild - A Rust-based build system
**NOTE**: Dates are in YYYY-MM-DD format.

## v0.3.1 (2019-08-20)
- Adds `always` keyword, which will always run the specified command regardless of timestamps.

## v0.3.0 (2019-04-29)
- Removes caching entirely. The meta-build system is now responsible for generating unique paths for targets configured with different options.

## v0.2.0 (2019-04-28)
- New lexer and parser, so now keywords no longer need to be on new lines.
- Added `#NUM` syntax to annotate paths with their ids.
- `dep` renamed to `deps` and now accepts multiple unsigned integer (corresponding to path id) dependencies.
- `run` now accepts arguments directly, and `arg` has been removed.
- Quotes or backslash (`\`) can be used to escape whitespace (see example in `tests/minimal\ project/rbuild`)
- Command hashing is now performed during parsing, and no longer relies on `format!`ing `Command`s.

## v0.1.1 (2019-04-27)
- Performance optimizations, by removing excessive `format!`s.
- Removes `--verbose` option.

## v0.1.0 (2019-04-02)
- Adds the Target struct, which corresponds to a path in the rbuild file.
- Adds a basic command-line utility that accepts the rbuild file and targets as arguments.
- RBuild now ignores leading and trailing whitespace in values in the configuration file.
- Adds functionality for reading and writing to a hash cache, so that commands are rerun when the rbuild file is modified.
- Migrates command-line parsing to RgParse.
- Adds a `--threads` option that allows the user to specify the maximum number of parallel jobs.
- Adds a `--cache` option for specifying the path to the hash cache.
- Adds a `--verbose` option that prints out commands before running them.
- Changes default behavior of RBuild to run all targets if none are specified.