enable cargo build --features=extra to build plugins (#448)

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Darren Schroeder 2021-12-07 14:06:34 -06:00 committed by GitHub
parent 8d027a0617
commit 512dcf0988
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10 changed files with 244 additions and 150 deletions

3
Cargo.lock generated
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@ -748,6 +748,9 @@ dependencies = [
"nu-protocol",
"nu-table",
"nu-term-grid",
"nu_plugin_example",
"nu_plugin_gstat",
"nu_plugin_inc",
"pretty_assertions",
"reedline",
"tempfile",

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@ -38,12 +38,69 @@ ctrlc = "3.2.1"
crossterm_winapi = "0.9.0"
# mimalloc = { version = "*", default-features = false }
[features]
plugin = ["nu-plugin", "nu-parser/plugin", "nu-command/plugin", "nu-protocol/plugin", "nu-engine/plugin"]
dataframe = ["nu-command/dataframe"]
default = ["plugin"]
nu_plugin_inc = { version = "0.1.0", path = "./crates/nu_plugin_inc", optional = true }
nu_plugin_example = { version = "0.1.0", path = "./crates/nu_plugin_example", optional = true }
nu_plugin_gstat = { version = "0.1.0", path = "./crates/nu_plugin_gstat", optional = true }
[dev-dependencies]
tempfile = "3.2.0"
assert_cmd = "1.0.7"
pretty_assertions = "0.7.2"
[build-dependencies]
[features]
plugin = ["nu-plugin", "nu-parser/plugin", "nu-command/plugin", "nu-protocol/plugin", "nu-engine/plugin"]
default = [
"plugin",
"inc",
"example",
]
stable = ["default"]
extra = [
"default",
"dataframe",
"gstat",
]
wasi = ["inc"]
# Stable (Default)
inc = ["nu_plugin_inc"]
example = ["nu_plugin_example"]
# Extra
gstat = ["nu_plugin_gstat"]
# Dataframe feature for nushell
dataframe = ["nu-command/dataframe"]
[profile.release]
opt-level = "s" # Optimize for size
# Build plugins
[[bin]]
name = "nu_plugin_inc"
path = "src/plugins/nu_plugin_core_inc.rs"
required-features = ["inc"]
[[bin]]
name = "nu_plugin_example"
path = "src/plugins/nu_plugin_core_example.rs"
required-features = ["example"]
# Extra plugins
[[bin]]
name = "nu_plugin_gstat"
path = "src/plugins/nu_plugin_extra_gstat.rs"
required-features = ["gstat"]
# Main nu binary
[[bin]]
name = "engine-q"
path = "src/main.rs"

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@ -0,0 +1,94 @@
use nu_plugin::{EvaluatedCall, LabeledError};
use nu_protocol::Value;
pub struct Example;
impl Example {
fn print_values(
&self,
index: u32,
call: &EvaluatedCall,
input: &Value,
) -> Result<(), LabeledError> {
// Note. When debugging your plugin, you may want to print something to the console
// Use the eprintln macro to print your messages. Trying to print to stdout will
// cause a decoding error for your message
eprintln!("Calling test {} signature", index);
eprintln!("value received {:?}", input);
// To extract the arguments from the Call object you can use the functions req, has_flag,
// opt, rest, and get_flag
//
// Note that plugin calls only accept simple arguments, this means that you can
// pass to the plug in Int and String. This should be improved when the plugin has
// the ability to call back to NuShell to extract more information
// Keep this in mind when designing your plugin signatures
let a: i64 = call.req(0)?;
let b: String = call.req(1)?;
let flag = call.has_flag("flag");
let opt: Option<i64> = call.opt(2)?;
let named: Option<String> = call.get_flag("named")?;
let rest: Vec<String> = call.rest(3)?;
eprintln!("Required values");
eprintln!("a: {:}", a);
eprintln!("b: {:}", b);
eprintln!("flag: {:}", flag);
eprintln!("rest: {:?}", rest);
match opt {
Some(v) => eprintln!("Found optional value opt: {:}", v),
None => eprintln!("No optional value found"),
}
match named {
Some(v) => eprintln!("Named value: {:?}", v),
None => eprintln!("No named value found"),
}
Ok(())
}
pub fn test1(&self, call: &EvaluatedCall, input: &Value) -> Result<Value, LabeledError> {
self.print_values(1, call, input)?;
Ok(Value::Nothing { span: call.head })
}
pub fn test2(&self, call: &EvaluatedCall, input: &Value) -> Result<Value, LabeledError> {
self.print_values(2, call, input)?;
let cols = vec!["one".to_string(), "two".to_string(), "three".to_string()];
let vals = (0..10i64)
.map(|i| {
let vals = (0..3)
.map(|v| Value::Int {
val: v * i,
span: call.head,
})
.collect::<Vec<Value>>();
Value::Record {
cols: cols.clone(),
vals,
span: call.head,
}
})
.collect::<Vec<Value>>();
Ok(Value::List {
vals,
span: call.head,
})
}
pub fn test3(&self, call: &EvaluatedCall, input: &Value) -> Result<Value, LabeledError> {
self.print_values(3, call, input)?;
Err(LabeledError {
label: "ERROR from plugin".into(),
msg: "error message pointing to call head span".into(),
span: Some(call.head),
})
}
}

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@ -0,0 +1,4 @@
mod example;
mod nu;
pub use example::Example;

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@ -1,148 +1,6 @@
use nu_plugin::{serve_plugin, EvaluatedCall, LabeledError, Plugin};
use nu_protocol::{Category, Signature, SyntaxShape, Value};
use nu_plugin::serve_plugin;
use nu_plugin_example::Example;
fn main() {
serve_plugin(&mut Example {})
}
struct Example {}
impl Plugin for Example {
fn signature(&self) -> Vec<Signature> {
// It is possible to declare multiple signature in a plugin
// Each signature will be converted to a command declaration once the
// plugin is registered to nushell
vec![
Signature::build("test-1")
.desc("Signature test 1 for plugin. Returns Value::Nothing")
.required("a", SyntaxShape::Int, "required integer value")
.required("b", SyntaxShape::String, "required string value")
.switch("flag", "a flag for the signature", Some('f'))
.optional("opt", SyntaxShape::Int, "Optional number")
.named("named", SyntaxShape::String, "named string", Some('n'))
.rest("rest", SyntaxShape::String, "rest value string")
.category(Category::Experimental),
Signature::build("test-2")
.desc("Signature test 2 for plugin. Returns list of records")
.required("a", SyntaxShape::Int, "required integer value")
.required("b", SyntaxShape::String, "required string value")
.switch("flag", "a flag for the signature", Some('f'))
.optional("opt", SyntaxShape::Int, "Optional number")
.named("named", SyntaxShape::String, "named string", Some('n'))
.rest("rest", SyntaxShape::String, "rest value string")
.category(Category::Experimental),
Signature::build("test-3")
.desc("Signature test 3 for plugin. Returns labeled error")
.required("a", SyntaxShape::Int, "required integer value")
.required("b", SyntaxShape::String, "required string value")
.switch("flag", "a flag for the signature", Some('f'))
.optional("opt", SyntaxShape::Int, "Optional number")
.named("named", SyntaxShape::String, "named string", Some('n'))
.rest("rest", SyntaxShape::String, "rest value string")
.category(Category::Experimental),
]
}
fn run(
&mut self,
name: &str,
call: &EvaluatedCall,
input: &Value,
) -> Result<Value, LabeledError> {
// You can use the name to identify what plugin signature was called
match name {
"test-1" => test1(call, input),
"test-2" => test2(call, input),
"test-3" => test3(call, input),
_ => Err(LabeledError {
label: "Plugin call with wrong name signature".into(),
msg: "using the wrong signature".into(),
span: Some(call.head),
}),
}
}
}
fn print_values(index: u32, call: &EvaluatedCall, input: &Value) -> Result<(), LabeledError> {
// Note. When debugging your plugin, you may want to print something to the console
// Use the eprintln macro to print your messages. Trying to print to stdout will
// cause a decoding error for your message
eprintln!("Calling test {} signature", index);
eprintln!("value received {:?}", input);
// To extract the arguments from the Call object you can use the functions req, has_flag,
// opt, rest, and get_flag
//
// Note that plugin calls only accept simple arguments, this means that you can
// pass to the plug in Int and String. This should be improved when the plugin has
// the ability to call back to NuShell to extract more information
// Keep this in mind when designing your plugin signatures
let a: i64 = call.req(0)?;
let b: String = call.req(1)?;
let flag = call.has_flag("flag");
let opt: Option<i64> = call.opt(2)?;
let named: Option<String> = call.get_flag("named")?;
let rest: Vec<String> = call.rest(3)?;
eprintln!("Required values");
eprintln!("a: {:}", a);
eprintln!("b: {:}", b);
eprintln!("flag: {:}", flag);
eprintln!("rest: {:?}", rest);
match opt {
Some(v) => eprintln!("Found optional value opt: {:}", v),
None => eprintln!("No optional value found"),
}
match named {
Some(v) => eprintln!("Named value: {:?}", v),
None => eprintln!("No named value found"),
}
Ok(())
}
fn test1(call: &EvaluatedCall, input: &Value) -> Result<Value, LabeledError> {
print_values(1, call, input)?;
Ok(Value::Nothing { span: call.head })
}
fn test2(call: &EvaluatedCall, input: &Value) -> Result<Value, LabeledError> {
print_values(2, call, input)?;
let cols = vec!["one".to_string(), "two".to_string(), "three".to_string()];
let vals = (0..10i64)
.map(|i| {
let vals = (0..3)
.map(|v| Value::Int {
val: v * i,
span: call.head,
})
.collect::<Vec<Value>>();
Value::Record {
cols: cols.clone(),
vals,
span: call.head,
}
})
.collect::<Vec<Value>>();
Ok(Value::List {
vals,
span: call.head,
})
}
fn test3(call: &EvaluatedCall, input: &Value) -> Result<Value, LabeledError> {
print_values(3, call, input)?;
Err(LabeledError {
label: "ERROR from plugin".into(),
msg: "error message pointing to call head span".into(),
span: Some(call.head),
})
}

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@ -0,0 +1,59 @@
use crate::Example;
use nu_plugin::{EvaluatedCall, LabeledError, Plugin};
use nu_protocol::{Category, Signature, SyntaxShape, Value};
impl Plugin for Example {
fn signature(&self) -> Vec<Signature> {
// It is possible to declare multiple signature in a plugin
// Each signature will be converted to a command declaration once the
// plugin is registered to nushell
vec![
Signature::build("test-1")
.desc("Signature test 1 for plugin. Returns Value::Nothing")
.required("a", SyntaxShape::Int, "required integer value")
.required("b", SyntaxShape::String, "required string value")
.switch("flag", "a flag for the signature", Some('f'))
.optional("opt", SyntaxShape::Int, "Optional number")
.named("named", SyntaxShape::String, "named string", Some('n'))
.rest("rest", SyntaxShape::String, "rest value string")
.category(Category::Experimental),
Signature::build("test-2")
.desc("Signature test 2 for plugin. Returns list of records")
.required("a", SyntaxShape::Int, "required integer value")
.required("b", SyntaxShape::String, "required string value")
.switch("flag", "a flag for the signature", Some('f'))
.optional("opt", SyntaxShape::Int, "Optional number")
.named("named", SyntaxShape::String, "named string", Some('n'))
.rest("rest", SyntaxShape::String, "rest value string")
.category(Category::Experimental),
Signature::build("test-3")
.desc("Signature test 3 for plugin. Returns labeled error")
.required("a", SyntaxShape::Int, "required integer value")
.required("b", SyntaxShape::String, "required string value")
.switch("flag", "a flag for the signature", Some('f'))
.optional("opt", SyntaxShape::Int, "Optional number")
.named("named", SyntaxShape::String, "named string", Some('n'))
.rest("rest", SyntaxShape::String, "rest value string")
.category(Category::Experimental),
]
}
fn run(
&mut self,
name: &str,
call: &EvaluatedCall,
input: &Value,
) -> Result<Value, LabeledError> {
// You can use the name to identify what plugin signature was called
match name {
"test-1" => self.test1(call, input),
"test-2" => self.test2(call, input),
"test-3" => self.test3(call, input),
_ => Err(LabeledError {
label: "Plugin call with wrong name signature".into(),
msg: "using the wrong signature".into(),
span: Some(call.head),
}),
}
}
}

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@ -1,12 +1,13 @@
use crate::GStat;
use nu_plugin::{EvaluatedCall, LabeledError, Plugin};
use nu_protocol::{Signature, Span, Spanned, SyntaxShape, Value};
use nu_protocol::{Category, Signature, Span, Spanned, SyntaxShape, Value};
impl Plugin for GStat {
fn signature(&self) -> Vec<Signature> {
vec![Signature::build("gstat")
.desc("Get the git status of a repo")
.optional("path", SyntaxShape::String, "path to repo")]
.optional("path", SyntaxShape::String, "path to repo")
.category(Category::Custom("Prompt".to_string()))]
}
fn run(

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@ -0,0 +1,6 @@
use nu_plugin::serve_plugin;
use nu_plugin_example::Example;
fn main() {
serve_plugin(&mut Example {})
}

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@ -0,0 +1,6 @@
use nu_plugin::serve_plugin;
use nu_plugin_inc::Inc;
fn main() {
serve_plugin(&mut Inc::new())
}

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@ -0,0 +1,6 @@
use nu_plugin::serve_plugin;
use nu_plugin_gstat::GStat;
fn main() {
serve_plugin(&mut GStat::new())
}