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daml.rs
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daml.rs
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use super::{Context, Module, ModuleConfig};
use crate::configs::daml::DamlConfig;
use crate::formatter::{StringFormatter, VersionFormatter};
const DAML_SDK_VERSION: &str = "sdk-version";
const DAML_SDK_VERSION_ENV: &str = "DAML_SDK_VERSION";
const DAML_YAML: &str = "daml.yaml";
/// Creates a module with the current Daml version
pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
let mut module = context.new_module("daml");
let config: DamlConfig = DamlConfig::try_load(module.config);
let is_daml_project = context
.try_begin_scan()?
.set_files(&config.detect_files)
.set_extensions(&config.detect_extensions)
.set_folders(&config.detect_folders)
.is_match();
if !is_daml_project {
return None;
}
let parsed = StringFormatter::new(config.format).and_then(|formatter| {
formatter
.map_meta(|var, _| match var {
"symbol" => Some(config.symbol),
_ => None,
})
.map_style(|variable| match variable {
"style" => Some(Ok(config.style)),
_ => None,
})
.map(|variable| match variable {
"version" => {
let daml_sdk_version = get_daml_sdk_version(context)?;
VersionFormatter::format_module_version(
module.get_name(),
&daml_sdk_version,
config.version_format,
)
.map(Ok)
}
_ => None,
})
.parse(None, Some(context))
});
module.set_segments(match parsed {
Ok(segments) => segments,
Err(error) => {
log::warn!("Error in module `daml`:\n{}", error);
return None;
}
});
Some(module)
}
fn get_daml_sdk_version(context: &Context) -> Option<String> {
context
.get_env(DAML_SDK_VERSION_ENV)
.or_else(|| read_sdk_version_from_daml_yaml(context))
}
fn read_sdk_version_from_daml_yaml(context: &Context) -> Option<String> {
let file_contents = context.read_file_from_pwd(DAML_YAML)?;
let daml_yaml = yaml_rust2::YamlLoader::load_from_str(&file_contents).ok()?;
let sdk_version = daml_yaml.first()?[DAML_SDK_VERSION].as_str()?;
Some(sdk_version.to_string())
}
#[cfg(test)]
mod tests {
use super::*;
use crate::test::ModuleRenderer;
use nu_ansi_term::Color;
use std::fs::File;
use std::io::{Result, Write};
#[test]
fn folder_without_daml_yaml() -> Result<()> {
let dir = tempfile::tempdir()?;
let actual = ModuleRenderer::new("daml").path(dir.path()).collect();
let expected = None;
assert_eq!(expected, actual);
dir.close()
}
#[test]
fn folder_with_daml_yaml() -> Result<()> {
let dir = tempfile::tempdir()?;
File::create(dir.path().join(DAML_YAML))?.write_all(b"sdk-version: 2.2.0\n")?;
let actual = ModuleRenderer::new("daml").path(dir.path()).collect();
let expected = Some(format!("via {}", Color::Cyan.bold().paint("螞 v2.2.0 ")));
assert_eq!(expected, actual);
dir.close()
}
#[test]
fn folder_with_daml_yaml_without_sdk_version_entry() -> Result<()> {
let dir = tempfile::tempdir()?;
File::create(dir.path().join(DAML_YAML))?.write_all(b"version: 1.0.0\n")?;
let actual = ModuleRenderer::new("daml").path(dir.path()).collect();
let expected = Some(format!("via {}", Color::Cyan.bold().paint("螞 ")));
assert_eq!(expected, actual);
dir.close()
}
#[test]
fn folder_with_daml_yaml_and_daml_sdk_version() -> Result<()> {
let dir = tempfile::tempdir()?;
File::create(dir.path().join(DAML_YAML))?.write_all(b"sdk-version: 2.2.0\n")?;
let actual = ModuleRenderer::new("daml")
.env(DAML_SDK_VERSION_ENV, "2.0.0")
.path(dir.path())
.collect();
let expected = Some(format!("via {}", Color::Cyan.bold().paint("螞 v2.0.0 ")));
assert_eq!(expected, actual);
dir.close()
}
#[test]
fn folder_without_daml_yaml_with_daml_sdk_version() -> Result<()> {
let dir = tempfile::tempdir()?;
let actual = ModuleRenderer::new("daml")
.env(DAML_SDK_VERSION_ENV, "2.0.0")
.path(dir.path())
.collect();
let expected = None;
assert_eq!(expected, actual);
dir.close()
}
}