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use std::path::PathBuf;
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use embed_nu::{Argument, CommandGroupConfig, Context, ValueIntoExpression};
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use tokio::fs;
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use crate::{distro::OSConfig, error::ScriptError, utils::CFG_PATH};
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pub struct ExecBuilder {
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pub script: PathBuf,
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pub os_config: OSConfig,
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pub task_config: embed_nu::Value,
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}
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impl ExecBuilder {
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#[tracing::instrument(level = "trace", skip_all)]
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pub async fn exec(self) -> Result<(), ScriptError> {
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let script_contents = self.get_script_contents().await?;
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let mut ctx = Context::builder()
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.with_command_groups(CommandGroupConfig::default().all_groups(true))?
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.add_var("TRM_CONFIG", self.os_config)?
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.add_script(script_contents)?
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.build()?;
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if ctx.has_fn("main") {
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let pipeline = ctx.call_fn(
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"main",
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vec![Argument::Positional(self.task_config.into_expression())],
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)?;
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ctx.print_pipeline_stderr(pipeline)?;
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Ok(())
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} else {
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Err(ScriptError::MissingMain(self.script))
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}
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}
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#[tracing::instrument(level = "trace", skip_all)]
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async fn get_script_contents(&self) -> Result<String, ScriptError> {
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let path = CFG_PATH.join(&self.script);
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if path.exists() {
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fs::read_to_string(path).await.map_err(ScriptError::from)
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} else {
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Err(ScriptError::ScriptNotFound(path))
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}
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}
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}
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