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LogLevel

Enum LogLevel 

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pub enum LogLevel {
    Off,
    Error,
    Warn,
    Info,
    Debug,
    Trace,
}
Expand description

How much of the daemon’s own diagnostics reaches its log.

Written as one of the names below in [daemon] log_level or in SHEP_LOG_LEVEL, lowercase and nothing else — the same closed grammar log_json accepts, so a typo is a startup error naming the value rather than a level silently reverting to the default.

The default is LogLevel::Warn. The daemon’s records are dominated by warn-and-continue arms — an app that asked to be watched and could not be, a cron pattern that would not parse, a memory ceiling a process tree crossed — and each one is the only account of a decision the operator cannot otherwise see. LogLevel::Debug adds per-decision detail that fires per dropped restart and per child metric sample, which is a firehose on a busy flock rather than a slightly noisier log.

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Off

Nothing at all — the daemon writes no records of its own.

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Error

Only faults the daemon could not work around.

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Warn

Faults the daemon worked around, and what working around them cost.

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Info

Lifecycle milestones: the daemon came up, the daemon is going down.

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Debug

Per-decision detail — every restart weighed, every metric sampled.

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Trace

Everything the daemon can say about itself.

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impl LogLevel

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pub const fn as_str(self) -> &'static str

The one spelling this level is written as, in the file and in the environment alike

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pub fn from_name(name: &str) -> Option<Self>

The level name spells, or None when it spells no level.

The inverse of LogLevel::as_str, and exact: an uppercase or mixed-case name is not a level here, because SHEP_LOG_JSON accepts no TRUE either.

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impl Clone for LogLevel

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fn clone(&self) -> LogLevel

Returns a duplicate of the value. Read more
1.0.0 (const: unstable) · Source§

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source. Read more
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impl Copy for LogLevel

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impl Debug for LogLevel

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fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter. Read more
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impl Default for LogLevel

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fn default() -> LogLevel

Returns the “default value” for a type. Read more
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impl<'de> Deserialize<'de> for LogLevel

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fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more
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impl Eq for LogLevel

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impl PartialEq for LogLevel

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fn eq(&self, other: &LogLevel) -> bool

Equality operator ==. Read more
1.0.0 (const: unstable) · Source§

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=. Read more
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impl StructuralPartialEq for LogLevel

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

🔬This is a nightly-only experimental API. (clone_to_uninit)
Performs copy-assignment from self to dest. Read more
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impl<T> DeserializeOwned for T
where T: for<'de> Deserialize<'de>,

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impl<T> DynClone for T
where T: Clone,

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fn __clone_box(&self, _: Private) -> *mut ()

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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Checks if this value is equivalent to the given key. Read more
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impl<Q, K> Equivalent<K> for Q
where Q: Eq + ?Sized, K: Borrow<Q> + ?Sized,

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fn equivalent(&self, key: &K) -> bool

Compare self to key and return true if they are equal.
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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> ToOwned for T
where T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = !

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.