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feat(kubernetes): Add styling based on current context (#4550) 

* feat(kubernetes): Add styling based on current context

Add an ability to customize the configuration of the kubernetes module style, based on the current context.

A new variable is added to the config section, called environments, which is a list of possible customizations. Each such customization is an object with a context_pattern regex, which matches context name, and an optional style and icon that will override the global configuration, if the currently used context matched the context_pattern.

Based on multiple attempts to add per-context styling and symbols to the kubernetes module.

- https://github.com/starship/starship/pull/1568 by @lht https://github.com/lht -> base
- https://github.com/starship/starship/pull/614 by @nomaed https://github.com/nomaed -> naming, symbol, some tests

Rebased and combined by @jankatins

Contains the following squasched commits

- Rename to contexts and move aliases into contexts
- Move deprecated functions to a submodule
- Cleanup: ignore None-valued KubeCtxComponents
- Add regex func + clean up matching-context search
- Placate paper clip

Closes: https://github.com/starship/starship/issues/570

Co-authored-by: =?UTF-8?q?Boris=20Aranovic=CC=8C?= <nomaed@gmail.com>
Co-authored-by: Jan Katins <jasc@gmx.net>
Co-authored-by: Kevin Song <chips@ksong.dev>

* refactor(kubernetes): Remove options and use clearer names

* test(kubernetes): Handle duplicated contexts right

* refactor(kubernetes): Cleaner user matching

* fix(kubernetes): Only show warning in case of problems

* feat(kubernetes): Add back alias replacements

* refactor(kubernetes): Cleanup rust usage

---------

Co-authored-by: Haitao Li <lihaitao@gmail.com>
Co-authored-by: =?UTF-8?q?Boris=20Aranovic=CC=8C?= <nomaed@gmail.com>
Co-authored-by: Kevin Song <chips@ksong.dev>
Co-authored-by: David Knaack <davidkna@users.noreply.github.com>
This commit is contained in:
Jan Katins 2023-09-02 09:19:33 +02:00 committed by GitHub
parent e867cda1eb
commit 6b444e05c6
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
4 changed files with 744 additions and 128 deletions
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53
.github/config-schema.json vendored
View File

@ -906,6 +906,7 @@
"kubernetes": {
"default": {
"context_aliases": {},
"contexts": [],
"detect_extensions": [],
"detect_files": [],
"detect_folders": [],
@ -4013,6 +4014,58 @@
"items": {
"type": "string"
}
},
"contexts": {
"default": [],
"type": "array",
"items": {
"$ref": "#/definitions/KubernetesContextConfig"
}
}
},
"additionalProperties": false
},
"KubernetesContextConfig": {
"type": "object",
"properties": {
"context_pattern": {
"default": "",
"type": "string"
},
"user_pattern": {
"default": null,
"type": [
"string",
"null"
]
},
"symbol": {
"default": null,
"type": [
"string",
"null"
]
},
"style": {
"default": null,
"type": [
"string",
"null"
]
},
"context_alias": {
"default": null,
"type": [
"string",
"null"
]
},
"user_alias": {
"default": null,
"type": [
"string",
"null"
]
}
},
"additionalProperties": false

84
docs/config/README.md
View File

@ -2470,7 +2470,8 @@ kotlin_binary = 'kotlinc'
Displays the current [Kubernetes context](https://kubernetes.io/docs/concepts/configuration/organize-cluster-access-kubeconfig/#context) name and, if set, the namespace, user and cluster from the kubeconfig file.
The namespace needs to be set in the kubeconfig file, this can be done via
`kubectl config set-context starship-context --namespace astronaut`.
Similarly the user and cluster can be set with `kubectl config set-context starship-context --user starship-user` and `kubectl config set-context starship-context --cluster starship-cluster`.
Similarly, the user and cluster can be set with `kubectl config set-context starship-context --user starship-user`
and `kubectl config set-context starship-context --cluster starship-cluster`.
If the `$KUBECONFIG` env var is set the module will use that if not it will use the `~/.kube/config`.
::: tip
@ -2486,18 +2487,45 @@ case the module will only be active in directories that match those conditions.
### Options
::: warning
The `context_aliases` and `user_aliases` options are deprecated. Use `contexts` and the corresponding `context_alias`
and `user_alias` options instead.
:::
| Option | Default | Description |
| ------------------- | -------------------------------------------------- | --------------------------------------------------------------------- |
| `symbol` | `'☸ '` | A format string representing the symbol displayed before the Cluster. |
| `format` | `'[$symbol$context( \($namespace\))]($style) in '` | The format for the module. |
| `style` | `'cyan bold'` | The style for the module. |
| `context_aliases` | `{}` | Table of context aliases to display. |
| `user_aliases` | `{}` | Table of user aliases to display. |
| `context_aliases`* | `{}` | Table of context aliases to display. |
| `user_aliases`* | `{}` | Table of user aliases to display. |
| `detect_extensions` | `[]` | Which extensions should trigger this module. |
| `detect_files` | `[]` | Which filenames should trigger this module. |
| `detect_folders` | `[]` | Which folders should trigger this modules. |
| `contexts` | `[]` | Customized styles and symbols for specific contexts. |
| `disabled` | `true` | Disables the `kubernetes` module. |
*: This option is deprecated, please add `contexts` with the corresponding `context_alias` and `user_alias` options instead.
To customize the style of the module for specific environments, use the following configuration as
part of the `contexts` list:
| Variable | Description |
| ----------------- | ---------------------------------------------------------------------------------------- |
| `context_pattern` | **Required** Regular expression to match current Kubernetes context name. |
| `user_pattern` | Regular expression to match current Kubernetes user name. |
| `context_alias` | Context alias to display instead of the full context name. |
| `user_alias` | User alias to display instead of the full user name. |
| `style` | The style for the module when using this context. If not set, will use module's style. |
| `symbol` | The symbol for the module when using this context. If not set, will use module's symbol. |
Note that all regular expression are anchored with `^<pattern>$` and so must match the whole string. The `*_pattern`
regular expressions may contain capture groups, which can be referenced in the corresponding alias via `$name` and `$N`
(see example below and the
[rust Regex::replace() documentation](https://docs.rs/regex/latest/regex/struct.Regex.html#method.replace)).
### Variables
| Variable | Example | Description |
@ -2519,13 +2547,9 @@ case the module will only be active in directories that match those conditions.
[kubernetes]
format = 'on [⛵ ($user on )($cluster in )$context \($namespace\)](dimmed green) '
disabled = false
[kubernetes.context_aliases]
'dev.local.cluster.k8s' = 'dev'
'.*/openshift-cluster/.*' = 'openshift'
'gke_.*_(?P<var_cluster>[\w-]+)' = 'gke-$var_cluster'
[kubernetes.user_aliases]
'dev.local.cluster.k8s' = 'dev'
'root/.*' = 'root'
contexts = [
{ context_pattern = "dev.local.cluster.k8s", style = "green", symbol = "💔 " },
]
```
Only show the module in directories that contain a `k8s` file.
@ -2538,29 +2562,37 @@ disabled = false
detect_files = ['k8s']
```
#### Regex Matching
#### Kubernetes Context specific config
Additional to simple aliasing, `context_aliases` and `user_aliases` also supports
extended matching and renaming using regular expressions.
The regular expression must match on the entire kube context,
capture groups can be referenced using `$name` and `$N` in the replacement.
This is more explained in the [regex crate](https://docs.rs/regex/1.5.4/regex/struct.Regex.html#method.replace) documentation.
Long and automatically generated cluster names can be identified
and shortened using regular expressions:
The `contexts` configuration option is used to customise what the current Kubernetes context name looks
like (style and symbol) if the name matches the defined regular expression.
```toml
[kubernetes.context_aliases]
# OpenShift contexts carry the namespace and user in the kube context: `namespace/name/user`:
'.*/openshift-cluster/.*' = 'openshift'
# Or better, to rename every OpenShift cluster at once:
'.*/(?P<var_cluster>[\w-]+)/.*' = '$var_cluster'
# ~/.config/starship.toml
[[kubernetes.contexts]]
# "bold red" style + default symbol when Kubernetes current context name equals "production" *and* the current user
# equals "admin_user"
context_pattern = "production"
user_pattern = "admin_user"
style = "bold red"
context_alias = "prod"
user_alias = "admin"
[[kubernetes.contexts]]
# "green" style + a different symbol when Kubernetes current context name contains openshift
context_pattern = ".*openshift.*"
style = "green"
symbol = "💔 "
context_alias = "openshift"
[[kubernetes.contexts]]
# Using capture groups
# Contexts from GKE, AWS and other cloud providers usually carry additional information, like the region/zone.
# The following entry matches on the GKE format (`gke_projectname_zone_cluster-name`)
# and renames every matching kube context into a more readable format (`gke-cluster-name`):
'gke_.*_(?P<var_cluster>[\w-]+)' = 'gke-$var_cluster'
context_pattern = "gke_.*_(?P<cluster>[\\w-]+)"
context_alias = "gke-$cluster"
```
## Line Break

18
src/configs/kubernetes.rs
View File

@ -18,6 +18,7 @@ pub struct KubernetesConfig<'a> {
pub detect_extensions: Vec<&'a str>,
pub detect_files: Vec<&'a str>,
pub detect_folders: Vec<&'a str>,
pub contexts: Vec<KubernetesContextConfig<'a>>,
}
impl<'a> Default for KubernetesConfig<'a> {
@ -32,6 +33,23 @@ impl<'a> Default for KubernetesConfig<'a> {
detect_extensions: vec![],
detect_files: vec![],
detect_folders: vec![],
contexts: vec![],
}
}
}
#[derive(Clone, Deserialize, Serialize, Default)]
#[cfg_attr(
feature = "config-schema",
derive(schemars::JsonSchema),
schemars(deny_unknown_fields)
)]
#[serde(default)]
pub struct KubernetesContextConfig<'a> {
pub context_pattern: &'a str,
pub user_pattern: Option<&'a str>,
pub symbol: Option<&'a str>,
pub style: Option<&'a str>,
pub context_alias: Option<&'a str>,
pub user_alias: Option<&'a str>,
}

717
src/modules/kubernetes.rs
View File

@ -1,7 +1,6 @@
use yaml_rust::YamlLoader;
use std::borrow::Cow;
use std::collections::HashMap;
use std::env;
use std::path;
@ -11,99 +10,91 @@ use crate::configs::kubernetes::KubernetesConfig;
use crate::formatter::StringFormatter;
use crate::utils;
#[derive(Default)]
struct KubeCtxComponents {
user: Option<String>,
namespace: Option<String>,
cluster: Option<String>,
}
fn get_kube_context(filename: path::PathBuf) -> Option<String> {
fn get_current_kube_context_name(filename: path::PathBuf) -> Option<String> {
let contents = utils::read_file(filename).ok()?;
let yaml_docs = YamlLoader::load_from_str(&contents).ok()?;
if yaml_docs.is_empty() {
return None;
}
let conf = &yaml_docs[0];
let current_ctx = conf["current-context"].as_str()?;
if current_ctx.is_empty() {
return None;
}
Some(current_ctx.to_string())
let conf = yaml_docs.get(0)?;
conf["current-context"]
.as_str()
.filter(|s| !s.is_empty())
.map(String::from)
}
fn get_kube_ctx_component(filename: path::PathBuf, current_ctx: &str) -> Option<KubeCtxComponents> {
fn get_kube_ctx_components(
filename: path::PathBuf,
current_ctx_name: &str,
) -> Option<KubeCtxComponents> {
let contents = utils::read_file(filename).ok()?;
let yaml_docs = YamlLoader::load_from_str(&contents).ok()?;
if yaml_docs.is_empty() {
return None;
}
let conf = &yaml_docs[0];
let conf = yaml_docs.get(0)?;
let contexts = conf["contexts"].as_vec()?;
let ctx_yaml = conf["contexts"].as_vec().and_then(|contexts| {
contexts
.iter()
.filter_map(|ctx| Some((ctx, ctx["name"].as_str()?)))
.find(|(_, name)| *name == current_ctx)
});
// Find the context with the name we're looking for
// or return None if we can't find it
let (ctx_yaml, _) = contexts
.iter()
.filter_map(|ctx| Some((ctx, ctx["name"].as_str()?)))
.find(|(_, name)| name == &current_ctx_name)?;
let ctx_components = KubeCtxComponents {
user: ctx_yaml
.and_then(|(ctx, _)| ctx["context"]["user"].as_str())
.and_then(|s| {
if s.is_empty() {
return None;
}
Some(s.to_owned())
}),
namespace: ctx_yaml
.and_then(|(ctx, _)| ctx["context"]["namespace"].as_str())
.and_then(|s| {
if s.is_empty() {
return None;
}
Some(s.to_owned())
}),
cluster: ctx_yaml
.and_then(|(ctx, _)| ctx["context"]["cluster"].as_str())
.and_then(|s| {
if s.is_empty() {
return None;
}
Some(s.to_owned())
}),
user: ctx_yaml["context"]["user"]
.as_str()
.filter(|s| !s.is_empty())
.map(String::from),
namespace: ctx_yaml["context"]["namespace"]
.as_str()
.filter(|s| !s.is_empty())
.map(String::from),
cluster: ctx_yaml["context"]["cluster"]
.as_str()
.filter(|s| !s.is_empty())
.map(String::from),
};
Some(ctx_components)
}
fn get_kube_user<'a>(config: &'a KubernetesConfig, kube_user: &'a str) -> Cow<'a, str> {
return get_alias(&config.user_aliases, kube_user).unwrap_or(Cow::Borrowed(kube_user));
}
fn get_kube_context_name<'a>(config: &'a KubernetesConfig, kube_ctx: &'a str) -> Cow<'a, str> {
return get_alias(&config.context_aliases, kube_ctx).unwrap_or(Cow::Borrowed(kube_ctx));
}
fn get_alias<'a>(
aliases: &'a HashMap<String, &'a str>,
alias_candidate: &'a str,
) -> Option<Cow<'a, str>> {
if let Some(val) = aliases.get(alias_candidate) {
return Some(Cow::Borrowed(val));
fn get_aliased_name<'a>(
pattern: Option<&'a str>,
current_value: Option<&str>,
alias: Option<&'a str>,
) -> Option<String> {
let replacement = alias.or(current_value)?.to_string();
let Some(pattern) = pattern else {
// If user pattern not set, treat it as a match-all pattern
return Some(replacement);
};
// If a pattern is set, but we have no value, there is no match
let value = current_value?;
if value == pattern {
return Some(replacement);
}
return aliases.iter().find_map(|(k, v)| {
let re = regex::Regex::new(&format!("^{k}$")).ok()?;
let replaced = re.replace(alias_candidate, *v);
match replaced {
Cow::Owned(replaced) => Some(Cow::Owned(replaced)),
_ => None,
let re = match regex::Regex::new(&format!("^{pattern}$")) {
Ok(re) => re,
Err(error) => {
log::warn!(
"Could not compile regular expression `{}`:\n{}",
&format!("^{pattern}$"),
error
);
return None;
}
});
};
let replaced = re.replace(value, replacement.as_str());
match replaced {
Cow::Owned(replaced) => Some(replaced),
// It didn't match...
_ => None,
}
}
pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
@ -118,18 +109,28 @@ pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
// If we have some config for doing the directory scan then we use it but if we don't then we
// assume we should treat it like the module is enabled to preserve backward compatibility.
let have_scan_config = !(config.detect_files.is_empty()
&& config.detect_folders.is_empty()
&& config.detect_extensions.is_empty());
let have_scan_config = [
&config.detect_files,
&config.detect_folders,
&config.detect_extensions,
]
.into_iter()
.any(|v| !v.is_empty());
let is_kube_project = context
.try_begin_scan()?
.set_files(&config.detect_files)
.set_folders(&config.detect_folders)
.set_extensions(&config.detect_extensions)
.is_match();
let is_kube_project = have_scan_config.then(|| {
context
.try_begin_scan()
.map(|scanner| {
scanner
.set_files(&config.detect_files)
.set_folders(&config.detect_folders)
.set_extensions(&config.detect_extensions)
.is_match()
})
.unwrap_or(false)
});
if have_scan_config && !is_kube_project {
if !is_kube_project.unwrap_or(true) {
return None;
}
@ -139,39 +140,89 @@ pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
.get_env("KUBECONFIG")
.unwrap_or(default_config_file.to_str()?.to_string());
let kube_ctx = env::split_paths(&kube_cfg).find_map(get_kube_context)?;
let current_kube_ctx_name =
env::split_paths(&kube_cfg).find_map(get_current_kube_context_name)?;
let ctx_components: Vec<KubeCtxComponents> = env::split_paths(&kube_cfg)
.filter_map(|filename| get_kube_ctx_component(filename, &kube_ctx))
.collect();
// Even if we have multiple config files, the first key wins
// https://kubernetes.io/docs/concepts/configuration/organize-cluster-access-kubeconfig/
// > Never change the value or map key. ... Example: If two files specify a red-user,
// > use only values from the first file's red-user. Even if the second file has
// > non-conflicting entries under red-user, discard them.
// for that reason, we can pick the first context with that name
let ctx_components: KubeCtxComponents = env::split_paths(&kube_cfg)
.find_map(|filename| get_kube_ctx_components(filename, &current_kube_ctx_name))
.unwrap_or_else(|| {
// TODO: figure out if returning is more sensible. But currently we have tests depending on this
log::warn!(
"Invalid KUBECONFIG: identified current-context `{}`, but couldn't find the context in any config file(s): `{}`.\n",
&current_kube_ctx_name,
&kube_cfg
);
KubeCtxComponents::default()
});
// Select the first style that matches the context_pattern and,
// if it is defined, the user_pattern
let (matched_context_config, display_context, display_user) = config
.contexts
.iter()
.find_map(|context_config| {
let context_alias = get_aliased_name(
Some(context_config.context_pattern),
Some(&current_kube_ctx_name),
context_config.context_alias,
)?;
let user_alias = get_aliased_name(
context_config.user_pattern,
ctx_components.user.as_deref(),
context_config.user_alias,
);
if matches!((context_config.user_pattern, &user_alias), (Some(_), None)) {
// defined pattern, but it didn't match
return None;
}
Some((Some(context_config), context_alias, user_alias))
})
.unwrap_or_else(|| (None, current_kube_ctx_name.clone(), ctx_components.user));
// TODO: remove deprecated aliases after starship 2.0
let display_context =
deprecated::get_alias(display_context, &config.context_aliases, "context").unwrap();
let display_user =
display_user.and_then(|user| deprecated::get_alias(user, &config.user_aliases, "user"));
let display_style = matched_context_config
.and_then(|ctx_cfg| ctx_cfg.style)
.unwrap_or(config.style);
let display_symbol = matched_context_config
.and_then(|ctx_cfg| ctx_cfg.symbol)
.unwrap_or(config.symbol);
let parsed = StringFormatter::new(config.format).and_then(|formatter| {
formatter
.map_meta(|variable, _| match variable {
"symbol" => Some(config.symbol),
"symbol" => Some(display_symbol),
_ => None,
})
.map_style(|variable| match variable {
"style" => Some(Ok(config.style)),
"style" => Some(Ok(display_style)),
_ => None,
})
.map(|variable| match variable {
"context" => Some(Ok(get_kube_context_name(&config, &kube_ctx))),
"context" => Some(Ok(Cow::Borrowed(display_context.as_str()))),
"namespace" => ctx_components
.iter()
.find_map(|kube| kube.namespace.as_deref())
.map(|namespace| Ok(Cow::Borrowed(namespace))),
"user" => ctx_components
.iter()
.find_map(|kube| kube.user.as_deref())
.map(|user| Ok(get_kube_user(&config, user))),
.namespace
.as_ref()
.map(|kube_ns| Ok(Cow::Borrowed(kube_ns.as_str()))),
"cluster" => ctx_components
.iter()
.find_map(|kube| kube.cluster.as_deref())
.map(|cluster| Ok(Cow::Borrowed(cluster))),
.cluster
.as_ref()
.map(|kube_cluster| Ok(Cow::Borrowed(kube_cluster.as_str()))),
"user" => display_user
.as_ref()
.map(|kube_user| Ok(Cow::Borrowed(kube_user.as_str()))),
_ => None,
})
.parse(None, Some(context))
@ -188,6 +239,47 @@ pub fn module<'a>(context: &'a Context) -> Option<Module<'a>> {
Some(module)
}
mod deprecated {
use std::borrow::Cow;
use std::collections::HashMap;
pub fn get_alias<'a>(
current_value: String,
aliases: &'a HashMap<String, &'a str>,
name: &'a str,
) -> Option<String> {
let alias = if let Some(val) = aliases.get(current_value.as_str()) {
// simple match without regex
Some((*val).to_string())
} else {
// regex match
aliases.iter().find_map(|(k, v)| {
let re = regex::Regex::new(&format!("^{k}$")).ok()?;
let replaced = re.replace(current_value.as_str(), *v);
match replaced {
// We have a match if the replaced string is different from the original
Cow::Owned(replaced) => Some(replaced),
_ => None,
}
})
};
match alias {
Some(alias) => {
log::warn!(
"Usage of '{}_aliases' is deprecated and will be removed in 2.0; Use 'contexts' with '{}_alias' instead. (`{}` -> `{}`)",
&name,
&name,
&current_value,
&alias
);
Some(alias)
}
None => Some(current_value),
}
}
}
#[cfg(test)]
mod tests {
use crate::test::ModuleRenderer;
@ -429,6 +521,21 @@ users: []
)
}
#[test]
fn test_config_context_ctx_alias_regex_replace() -> io::Result<()> {
base_test_ctx_alias(
"gke_infra-cluster-28cccff6_europe-west4_cluster-1",
toml::toml! {
[kubernetes]
disabled = false
[[kubernetes.contexts]]
context_pattern = "gke_.*_(?P<cluster>[\\w-]+)"
context_alias = "example: $cluster"
},
"☸ example: cluster-1",
)
}
#[test]
fn test_ctx_alias_broken_regex() -> io::Result<()> {
base_test_ctx_alias(
@ -577,7 +684,9 @@ users: []
}
#[test]
fn test_multiple_config_files_with_ns() -> io::Result<()> {
fn test_multiple_config_files_with_context_defined_once() -> io::Result<()> {
// test that we get the current context from the first config file in the KUBECONFIG,
// no matter if it is only defined in the latter
let dir = tempfile::tempdir()?;
let filename_cc = dir.path().join("config_cc");
@ -630,7 +739,7 @@ users: []
})
.collect();
// And tes with context and namespace first
// And test with context and namespace first
let actual_ctx_first = ModuleRenderer::new("kubernetes")
.path(dir.path())
.env(
@ -655,6 +764,87 @@ users: []
dir.close()
}
#[test]
fn test_multiple_config_files_with_context_defined_twice() -> io::Result<()> {
// tests that, if two files contain the same context,
// only the context config from the first is used.
let dir = tempfile::tempdir()?;
let config1 = dir.path().join("config1");
let mut file1 = File::create(&config1)?;
file1.write_all(
b"
apiVersion: v1
clusters: []
contexts:
- context:
cluster: test_cluster1
namespace: test_namespace1
name: test_context
current-context: test_context
kind: Config
preferences: {}
users: []
",
)?;
file1.sync_all()?;
let config2 = dir.path().join("config2");
let mut file2 = File::create(&config2)?;
file2.write_all(
b"
apiVersion: v1
clusters: []
contexts:
- context:
cluster: test_cluster2
user: test_user2
name: test_context
current-context: test_context
kind: Config
preferences: {}
users: []
",
)?;
file2.sync_all()?;
let paths1 = [config1.clone(), config2.clone()];
let kubeconfig_content1 = env::join_paths(paths1.iter()).unwrap();
let actual1 = ModuleRenderer::new("kubernetes")
.path(dir.path())
.env("KUBECONFIG", kubeconfig_content1.to_string_lossy())
.config(toml::toml! {
[kubernetes]
format = "($user )($cluster )($namespace )"
disabled = false
})
.collect();
let expected1 = Some("test_cluster1 test_namespace1 ".to_string());
assert_eq!(expected1, actual1);
let paths2 = [config2, config1];
let kubeconfig_content2 = env::join_paths(paths2.iter()).unwrap();
let actual2 = ModuleRenderer::new("kubernetes")
.path(dir.path())
.env("KUBECONFIG", kubeconfig_content2.to_string_lossy())
.config(toml::toml! {
[kubernetes]
format = "($user )($cluster )($namespace )"
disabled = false
})
.collect();
let expected2 = Some("test_user2 test_cluster2 ".to_string());
assert_eq!(expected2, actual2);
dir.close()
}
fn base_test_user_alias(
user_name: &str,
config: toml::Table,
@ -744,6 +934,23 @@ users: []
)
}
#[test]
fn test_config_context_user_alias_regex_replace() -> io::Result<()> {
base_test_user_alias(
"gke_infra-user-28cccff6_europe-west4_cluster-1",
toml::toml! {
[kubernetes]
disabled = false
format = "[$symbol$context( \\($user\\))]($style) in "
[[kubernetes.contexts]]
context_pattern = ".*"
user_pattern = "gke_.*_(?P<cluster>[\\w-]+)"
user_alias = "example: $cluster"
},
"☸ test_context (example: cluster-1)",
)
}
#[test]
fn test_user_alias_broken_regex() -> io::Result<()> {
base_test_user_alias(
@ -932,4 +1139,310 @@ users: []
assert_eq!(expected, actual);
dir.close()
}
#[test]
fn test_config_context_overwrites_defaults() -> std::io::Result<()> {
let dir = tempfile::tempdir()?;
let filename = dir.path().join("config");
let mut file = File::create(&filename)?;
file.write_all(
b"
apiVersion: v1
clusters: []
contexts:
- context:
user: test_user
namespace: test_namespace
name: test_context
current-context: test_context
kind: Config
preferences: {}
users: []
",
)?;
file.sync_all()?;
let actual = ModuleRenderer::new("kubernetes")
.path(dir.path())
.env("KUBECONFIG", filename.to_string_lossy().as_ref())
.config(toml::toml! {
[kubernetes]
disabled = false
style = "bold red"
[[kubernetes.contexts]]
context_pattern = "test.*"
style = "bold green"
symbol = "§ "
})
.collect();
let expected = Some(format!(
"{} in ",
Color::Green.bold().paint("§ test_context (test_namespace)")
));
assert_eq!(expected, actual);
dir.close()
}
#[test]
fn test_config_context_both_pattern_must_match() -> io::Result<()> {
let dir = tempfile::tempdir()?;
let filename = dir.path().join("config");
let mut file = File::create(&filename)?;
file.write_all(
b"
apiVersion: v1
clusters: []
contexts:
- context:
user: test_user
name: test_context
current-context: test_context
kind: Config
preferences: {}
users: []
",
)?;
file.sync_all()?;
let actual = ModuleRenderer::new("kubernetes")
.path(dir.path())
.env("KUBECONFIG", filename.to_string_lossy().as_ref())
.config(toml::toml! {
[kubernetes]
disabled = false
format = "$symbol$context ($user )"
[[kubernetes.contexts]]
context_pattern = "test.*"
user_pattern = "test.*"
context_alias = "yy"
user_alias = "xx"
symbol = "§ "
})
.collect();
let expected = Some("§ yy xx ".to_string());
assert_eq!(expected, actual);
dir.close()
}
#[test]
fn test_config_context_only_one_pattern_matches() -> io::Result<()> {
let dir = tempfile::tempdir()?;
let filename = dir.path().join("config");
let mut file = File::create(&filename)?;
file.write_all(
b"
apiVersion: v1
clusters: []
contexts:
- context:
user: test_user
name: test_context
current-context: test_context
kind: Config
preferences: {}
users: []
",
)?;
file.sync_all()?;
let actual = ModuleRenderer::new("kubernetes")
.path(dir.path())
.env("KUBECONFIG", filename.to_string_lossy().as_ref())
.config(toml::toml! {
[kubernetes]
disabled = false
format = "$symbol$context ($user )"
[[kubernetes.contexts]]
context_pattern = "test.*"
user_pattern = "test_BAD.*"
context_alias = "yy"
user_alias = "xx"
symbol = "§ "
})
.collect();
let expected = Some("☸ test_context test_user ".to_string());
assert_eq!(expected, actual);
dir.close()
}
#[test]
fn test_config_context_uses_aliases() -> std::io::Result<()> {
let dir = tempfile::tempdir()?;
let filename = dir.path().join("config");
let mut file = File::create(&filename)?;
file.write_all(
b"
apiVersion: v1
clusters: []
contexts:
- context:
user: test_user
namespace: test_namespace
name: test_context
current-context: test_context
kind: Config
preferences: {}
users: []
",
)?;
file.sync_all()?;
let actual = ModuleRenderer::new("kubernetes")
.path(dir.path())
.env("KUBECONFIG", filename.to_string_lossy().as_ref())
.config(toml::toml! {
[kubernetes]
disabled = false
style = "bold red"
format = "$symbol($user )($context )($cluster )($namespace)"
[[kubernetes.contexts]]
context_pattern = "test.*"
context_alias = "xyz"
user_alias = "abc"
symbol = "§ "
})
.collect();
let expected = Some("§ abc xyz test_namespace".to_string());
assert_eq!(expected, actual);
dir.close()
}
#[test]
fn test_config_context_user_pattern_does_not_match() -> std::io::Result<()> {
let dir = tempfile::tempdir()?;
let filename = dir.path().join("config");
let mut file = File::create(&filename)?;
file.write_all(
b"
apiVersion: v1
clusters: []
contexts:
- context:
user: test_user
namespace: test_namespace
name: test_context
current-context: test_context
kind: Config
preferences: {}
users: []
",
)?;
file.sync_all()?;
let actual = ModuleRenderer::new("kubernetes")
.path(dir.path())
.env("KUBECONFIG", filename.to_string_lossy().as_ref())
.config(toml::toml! {
[kubernetes]
disabled = false
style = "bold red"
format = "$symbol($user )($context )($cluster )($namespace)"
[[kubernetes.contexts]]
context_pattern = "test"
user_pattern = "not_matching"
context_alias = "xyz"
user_alias = "abc"
symbol = "§ "
})
.collect();
let expected = Some("☸ test_user test_context test_namespace".to_string());
assert_eq!(expected, actual);
dir.close()
}
#[test]
fn test_config_contexts_does_not_match() -> std::io::Result<()> {
let dir = tempfile::tempdir()?;
let filename = dir.path().join("config");
let mut file = File::create(&filename)?;
file.write_all(
b"
apiVersion: v1
clusters: []
contexts:
- context:
user: test_user
namespace: test_namespace
name: test_context
current-context: test_context
kind: Config
preferences: {}
users: []
",
)?;
file.sync_all()?;
let actual = ModuleRenderer::new("kubernetes")
.path(dir.path())
.env("KUBECONFIG", filename.to_string_lossy().as_ref())
.config(toml::toml! {
[kubernetes]
disabled = false
style = "bold red"
contexts = [
{context_pattern = "tests_.*", style = "bold green", symbol = "§ "},
]
})
.collect();
let expected = Some(format!(
"{} in ",
Color::Red.bold().paint("☸ test_context (test_namespace)")
));
assert_eq!(expected, actual);
dir.close()
}
#[test]
fn test_config_context_bad_regex_should_not_panic() -> std::io::Result<()> {
let dir = tempfile::tempdir()?;
let filename = dir.path().join("config");
let mut file = File::create(&filename)?;
file.write_all(
b"
apiVersion: v1
clusters: []
contexts:
- context:
user: test_user
namespace: test_namespace
name: test_context
current-context: test_context
kind: Config
preferences: {}
users: []
",
)?;
file.sync_all()?;
let actual = ModuleRenderer::new("kubernetes")
.path(dir.path())
.env("KUBECONFIG", filename.to_string_lossy().as_ref())
.config(toml::toml! {
[kubernetes]
disabled = false
style = "bold red"
contexts = [
{context_pattern = "tests_(.*", style = "bold green", symbol = "§ "},
]
})
.collect();
let expected = Some(format!(
"{} in ",
Color::Red.bold().paint("☸ test_context (test_namespace)")
));
assert_eq!(expected, actual);
dir.close()
}
}