Commit Graph

41 Commits

Author SHA1 Message Date
Casey Rodarmor
b66a979c08
Add set export to export all variables as environment variables (#767)
Add a setting that exports all variables by default, regardless of
whether they use the `export` keyword. This includes assignments as well
as parameters.

Just does dependency analysis of variable uses, allowing variables to be
used out of order in assignments, as long as there are no circular
dependencies.

However, use of environment variable is not known to Just, so exported
variables are only exported to child scopes, to avoid ordering dependencies,
since dependency analysis cannot be done.
2021-03-25 17:00:32 -07:00
Casey Rodarmor
7ae890ce61
Note shebang line splitting inconsistency in readme (#757) 2021-02-15 01:18:31 -08:00
Casey Rodarmor
19f7ad09a7
Add conditional expressions (#714)
Add conditional expressions of the form:

   foo := if lhs == rhs { then } else { otherwise }

`lhs`, `rhs`, `then`, and `otherwise` are all arbitrary expressions, and
can recursively include other conditionals. Conditionals short-circuit,
so the branch not taken isn't evaluated.

It is also possible to test for inequality with `==`.
2020-10-26 18:16:42 -07:00
Casey Rodarmor
3643a0dff0
Add Parser::forbid (#712) 2020-10-25 23:57:08 -07:00
Casey Rodarmor
bdf1c92251
Automatically track expected tokens while parsing (#711)
Remove all manual tracking of which tokens would have been accepted by
the parser in favor of having the parser add tokens that it checks for
to a set of expected tokens, clearing them when it accepts a token, and
using the current contents of the set in error messages.

This is a massive improvement, and will make the parser easier to
modify going forward.

And, this actually solves my sole issue with hand-written parsers.

Thanks to matklad on reddit for suggesting this!
2020-10-25 19:37:26 -07:00
Richard Berry
1ff619295c
Add variadic parameters that accept zero or more arguments (#645)
Add "star" variadic parameters that accept zero or more arguments,
distinguished with a `*` in front of the parameter name.
2020-06-13 01:49:13 -07:00
Casey Rodarmor
9731278d2a
Wrap comments at 80 characters (#593)
I think 70 is too agressive, especially since it includes indentation
when determining line length.
2020-02-14 04:49:25 -08:00
Casey Rodarmor
3ec7dea4a3
Use unstable rustfmt configuration options (#592) 2020-02-10 20:07:06 -08:00
Casey Rodarmor
0931fa8dbf
Allow passing arguments to dependencies (#555)
Allow recipes that take parameters to be used as dependencies.
2019-12-07 04:03:03 -08:00
Casey Rodarmor
2d3134a91c
Reform scope and binding (#556)
Clean up scope handling by introducing `Binding` and `Scope` objects.
2019-12-07 03:09:21 -08:00
Casey Rodarmor
d2decbfdb8
Resolve functions (#550)
Modifies parsing to return strongly-typed `Thunk`s, which contain both
the function implementation, as well as the correct number of arguments.

This moves unknown function and function argument count mismatch errors
to parse time.
2019-11-21 12:14:10 -06:00
Casey Rodarmor
4f08bb4d77
Resolve alias targets (#548)
During analysis, resolve alias targets from `Name`s to `Rc<Recipe>`,
giving us type-level assurance that alias resolution was performed, and
avoiding the need to look up alias targets in a separate table when
running.
2019-11-21 09:39:32 -06:00
Casey Rodarmor
30c77f8d03
Resolve recipe dependencies (#547)
Make analysis resolve recipe dependencies from names (`Name`) to recipes
(`Rc<Recipe>`), to give type-level certainty that resolution was performed
correctly and remove the need to look up dependencies on run.
2019-11-21 08:23:32 -06:00
Casey Rodarmor
598f1c3200
Refactor Compilation error to contain a Token (#535)
Use a `Token` to represent the error context, instead of a mess of
fields. Remove write_message_context in favor of `Token::write_context`.
2019-11-13 19:32:50 -08:00
Casey Rodarmor
e80bf34d9a
Add shell setting (#525)
Add a `set SETTING := VALUE` construct.

This construct is intended to be extended as needed with new settings,
but for now we're starting with `set shell := [COMMAND, ARG1, ...]`,
which allows setting the shell to use for recipe and backtick execution
in a justfile.

One of the primary reasons for adding this feature is to have a better
story on windows, where users are forced to scrounge up an `sh` binary
if they want to use `just`. This should allow them to use cmd.exe or
powershell in their justfiles, making just optionally dependency-free.
2019-11-10 23:17:47 -08:00
Casey Rodarmor
aefdcea7d0
Gargantuan refactor (#522)
- Instead of changing the current directory with `env::set_current_dir`
  to be implicitly inherited by subprocesses, we now use
  `Command::current_dir` to set it explicitly. This feels much better,
  since we aren't dependent on the implicit state of the process's
  current directory.

- Subcommand execution is much improved.

- Added a ton of tests for config parsing, config execution, working
  dir, and search dir.

- Error messages are improved. Many more will be colored.

- The Config is now onwed, instead of borrowing from the arguments and
  the `clap::ArgMatches` object. This is a huge ergonomic improvement,
  especially in tests, and I don't think anyone will notice.

- `--edit` now uses `$VISUAL`, `$EDITOR`, or `vim`, in that order,
  matching git, which I think is what most people will expect.

- Added a cute `tmptree!{}` macro, for creating temporary directories
  populated with directories and files for tests.

- Admitted that grammer is LL(k) and I don't know what `k` is.
2019-11-09 21:43:20 -08:00
Casey Rodarmor
b2285ce0e0
Reform Parser (#509)
Just's first parser performed both parsing, i.e the transformation of a
token stream according to the language grammar, and a number of consistency
checks and analysis passes.

This made parsing and analysis quite complex, so this diff introduces a
new, much cleaner `Parser`, and moves existing analysis into a dedicated
`Analyzer`.
2019-11-07 10:55:15 -08:00
Casey Rodarmor
1230af138c
Add context to deprecation warnings (#473)
Previously, warnings upon encountering a deprecated use `=` in
assignments, exports, and aliases would print a message without any
indication of where the offending `=` was. This diff adds a proper
`Warning` enum, and uses it to report context, as is done with
compilation and runtime errors.
2019-09-21 18:53:30 -07:00
Casey Rodarmor
1cb90f4e65
Use pub(crate) instead of pub (#471)
Eventually, there will probably be a `crate` visibility specifier that
does the same thing as `pub(crate)`. This commit replaces `pub` with
`pub(crate)`, so when `crate` is available we can easily switch to it.
2019-09-21 15:35:03 -07:00
Casey Rodarmor
415c84ea39
Refactor and rename test macros (#415) 2019-04-19 02:17:43 -07:00
Casey Rodarmor
0ad5574ecc
Deprecate = in assignments, aliases, and exports in favor of := (#413) 2019-04-18 11:48:02 -07:00
Casey Rodarmor
eb3ae2d093
Replace some calls to brev crate (#410) 2019-04-16 22:06:28 -07:00
Casey Rodarmor
596ea34460
Replace regex-based lexer with character-at-a-time lexer (#406) 2019-04-15 22:40:02 -07:00
Casey Rodarmor
fe0a6c252c
Allow arbitrary expressions as default arguments (#400) 2019-04-11 23:58:08 -07:00
Casey Rodarmor
e118051a5c
Omit aliases that begin with _ from --list` (#398) 2019-04-11 15:57:34 -07:00
Casey Rodarmor
3a287b864a
Housekeeping (#394)
- Upgrade to rust 2018
- Update dependencies
- Use BTree{Map,Set} instead of Map and Set
2019-04-11 15:23:14 -07:00
ryloric
f64f07a0cc Add recipe aliases (#390)
Recipe aliases may be defined with `alias f = foo`, allowing recipes to be called by shorter names on the command line.
2019-04-11 12:30:29 -07:00
Casey Rodarmor
3d67786aaf
Förmatterdämmerung (#346)
Format with rustfmt
2018-12-08 14:29:41 -08:00
Casey Rodarmor
bcfd47dcbf
Use PutBackN instead of PutBack in parser (#364)
The parser could be confused into calling `PutBack::put_back` twice in a row, and thus dropping tokens. This commit switches to `PutBackN`, which allows any number of put backs in a row.
2018-10-13 18:39:26 +09:00
Casey Rodarmor
ad0d37a173
Remove trailing whitespace in parser tests (#350) 2018-09-03 14:48:15 -07:00
Casey Rodarmor
70234f6193
Add dotenv integration (#306) 2018-03-05 13:21:35 -08:00
Casey Rodarmor
b7a126742f
Use .adoc for asciidoctor files instead of .asc (#300) 2018-02-03 20:27:07 -08:00
Casey Rodarmor
79c0994387
Add env_var(key) and env_var_or_default(key, default) functions (#280)
`env_var(key)` looks up the value of the environment variable with name `key`, aborting execution if it is not found.

`env_var_or_default(key, default)` looks up the value of the environment variable with name `key`, returning `default` if it is not found.
2017-12-02 23:59:07 +01:00
Casey Rodarmor
afa4aebd4a
Add functions (#277)
– Parse unary (no-argument) functions
– Add functions for detecting the current os, arch, and os family, according to rustc's cfg attributes
2017-12-02 14:37:10 +01:00
Casey Rodarmor
66391de3f8
Rename Scanner to Lexer (#276) 2017-12-01 11:22:32 +01:00
Casey Rodarmor
861173581c
Refactor Tokenizer (#260) 2017-11-18 03:36:02 -08:00
Casey Rodarmor
afe2c0f94e
Refactor more tests into macro invocations (#259) 2017-11-18 01:44:59 -08:00
Casey Rodarmor
28a57d9828
Refactor evaluators and resolvers into common form (#258) 2017-11-18 01:18:04 -08:00
Casey Rodarmor
bc79d16eac
Convert parser tests to macros (#257) 2017-11-17 23:59:55 -08:00
Casey Rodarmor
13a124d659
Refactor some other stuff (#252) 2017-11-17 17:28:06 -08:00
Casey Rodarmor
2b6b715528
Refactor Everything (#250) 2017-11-16 23:30:08 -08:00