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18772b73b3
# Description
As per our Wednesday meeting, this adds a parse error when something
that would be parsed as an external call is present at the top level,
unless the head of the external call begins with a caret (to make it
explicit).
I tried to make the error quite descriptive about what should be done.
# User-Facing Changes
These now cause a parse error:
```nushell
$foo = bar
$foo = `bar`
```
These would have been interpreted as strings before this version, but
now they'd be interpreted as external calls. This behavior is consistent
with `let`/`mut` (which is unaffected by this change).
Here is an example of the error:
```
Error: × External command calls must be explicit in assignments
╭─[entry #3:1:8]
1 │ $foo = bar
· ─┬─
· ╰── add a caret (^) before the command name if you intended to run and capture its output
╰────
help: the parsing of assignments was changed in 0.97.0, and this would have previously been treated as a string.
Alternatively, quote the string with single or double quotes to avoid it being interpreted as a command name. This
restriction may be removed in a future release.
```
# Tests + Formatting
Tests added to cover the change. Note made about it being temporary.
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|---|---|---|
| .. | ||
| nu_plugin_custom_values | ||
| nu_plugin_example | ||
| nu_plugin_formats | ||
| nu_plugin_gstat | ||
| nu_plugin_inc | ||
| nu_plugin_nu_example | ||
| nu_plugin_polars | ||
| nu_plugin_python | ||
| nu_plugin_query | ||
| nu_plugin_stress_internals | ||
| nu-cli | ||
| nu-cmd-base | ||
| nu-cmd-extra | ||
| nu-cmd-lang | ||
| nu-cmd-plugin | ||
| nu-color-config | ||
| nu-command | ||
| nu-derive-value | ||
| nu-engine | ||
| nu-explore | ||
| nu-glob | ||
| nu-json | ||
| nu-lsp | ||
| nu-parser | ||
| nu-path | ||
| nu-plugin | ||
| nu-plugin-core | ||
| nu-plugin-engine | ||
| nu-plugin-protocol | ||
| nu-plugin-test-support | ||
| nu-pretty-hex | ||
| nu-protocol | ||
| nu-std | ||
| nu-system | ||
| nu-table | ||
| nu-term-grid | ||
| nu-test-support | ||
| nu-utils | ||
| nuon | ||
| README.md | ||
Nushell core libraries and plugins
These sub-crates form both the foundation for Nu and a set of plugins which extend Nu with additional functionality.
Foundational libraries are split into two kinds of crates:
- Core crates - those crates that work together to build the Nushell language engine
- Support crates - a set of crates that support the engine with additional features like JSON support, ANSI support, and more.
Plugins are likewise also split into two types:
- Core plugins - plugins that provide part of the default experience of Nu, including access to the system properties, processes, and web-connectivity features.
- Extra plugins - these plugins run a wide range of different capabilities like working with different file types, charting, viewing binary data, and more.