2020-04-05 19:42:55 +00:00
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use super::{Context, Module, RootModuleConfig};
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use crate::configs::docker_context::DockerContextConfig;
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use crate::utils;
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const DOCKER_CONFIG_FILE: &str = ".docker/config.json";
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/// Creates a module with the currently active Docker context
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///
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/// Will display the Docker context if the following criteria are met:
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/// - There is a file named `$HOME/.docker/config.json`
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/// - The file is JSON and contains a field named `currentContext`
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/// - The value of `currentContext` is not `default`
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pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
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let mut module = context.new_module("docker_context");
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let config: DockerContextConfig = DockerContextConfig::try_load(module.config);
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if config.only_with_files
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&& !context
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.try_begin_scan()?
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.set_files(&["docker-compose.yml", "Dockerfile"])
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.is_match()
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{
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return None;
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}
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2020-06-20 17:59:35 +00:00
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let config_path = dirs_next::home_dir()?.join(DOCKER_CONFIG_FILE);
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2020-04-05 19:42:55 +00:00
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let json = utils::read_file(config_path).ok()?;
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let parsed_json = serde_json::from_str(&json).ok()?;
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match parsed_json {
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serde_json::Value::Object(root) => {
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let current_context = root.get("currentContext")?;
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match current_context {
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serde_json::Value::String(ctx) => {
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module.set_style(config.style);
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module.create_segment("symbol", &config.symbol);
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module.create_segment("context", &config.context.with_value(&ctx));
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Some(module)
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}
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_ => None,
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}
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}
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_ => None,
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}
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}
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