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Core nu plugin load capability. (#2544)

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We introduce the `plugin` nu sub command (`nu plugin`) with basic plugin
loading support. We can choose to load plugins from a directory. Originally
introduced to make integration tests faster (by not loading any plugins on startup at all)
but `nu plugin --load some_path ; test_pipeline_that_uses_plugins_just_loaded` does not see it.

Therefore, a `nu_with_plugins!` macro for tests was introduced on top of nu`s `--skip-plugins`
switch executable which is set to true when running the integration tests that use the `nu!` macro now..
This commit is contained in:
Andrés N. Robalino
2020-09-14 09:07:02 -05:00
committed by GitHub
parent e05e6b42fe
commit 0178b53289
11 changed files with 260 additions and 18 deletions
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7
crates/nu-cli/src/cli.rs
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@ -20,8 +20,8 @@ use std::iter::Iterator;
use std::path::{Path, PathBuf};
use std::sync::atomic::Ordering;
fn register_plugins(context: &mut Context) -> Result<(), ShellError> {
if let Ok(plugins) = crate::plugin::scan() {
pub fn register_plugins(context: &mut Context) -> Result<(), ShellError> {
if let Ok(plugins) = crate::plugin::scan(search_paths()) {
context.add_commands(
plugins
.into_iter()
@ -78,6 +78,7 @@ pub fn create_default_context(
use crate::commands::*;
context.add_commands(vec![
whole_stream_command(NuPlugin),
// System/file operations
whole_stream_command(Exec),
whole_stream_command(Pwd),
@ -568,8 +569,6 @@ pub async fn cli(
let configuration = nu_data::config::NuConfig::new();
let history_path = crate::commands::history::history_path(&configuration);
let _ = register_plugins(&mut context);
let (mut rl, config) = create_rustyline_configuration();
// we are ok if history does not exist