use schemars::JsonSchema;
use serde::{Deserialize, Deserializer, Serialize};
#[derive(Debug, Clone, PartialEq, Serialize, JsonSchema)]
#[serde(untagged)]
pub enum StringOrBool {
Bool(bool),
String(String),
}
impl StringOrBool {
pub fn as_bool(&self) -> bool {
match self {
StringOrBool::Bool(b) => *b,
StringOrBool::String(s) => matches!(s.trim(), "true" | "1"),
}
}
pub fn as_str(&self) -> &str {
match self {
StringOrBool::Bool(true) => "true",
StringOrBool::Bool(false) => "false",
StringOrBool::String(s) => s,
}
}
pub fn is_template(&self) -> bool {
matches!(self, StringOrBool::String(s) if s.contains('{'))
}
pub fn try_evaluates_to_true(
&self,
render: impl Fn(&str) -> anyhow::Result<String>,
) -> anyhow::Result<bool> {
match self {
StringOrBool::Bool(b) => Ok(*b),
StringOrBool::String(s) => {
let rendered = render(s)?;
Ok(matches!(rendered.trim(), "true" | "1"))
}
}
}
}
impl Default for StringOrBool {
fn default() -> Self {
StringOrBool::Bool(false)
}
}
pub(crate) fn deserialize_string_or_bool_opt<'de, D>(
deserializer: D,
) -> Result<Option<StringOrBool>, D::Error>
where
D: Deserializer<'de>,
{
use serde::de::{self, Visitor};
struct StringOrBoolVisitor;
impl<'de> Visitor<'de> for StringOrBoolVisitor {
type Value = Option<StringOrBool>;
fn expecting(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.write_str("a bool, a string, or null")
}
fn visit_bool<E: de::Error>(self, v: bool) -> Result<Self::Value, E> {
Ok(Some(StringOrBool::Bool(v)))
}
fn visit_str<E: de::Error>(self, v: &str) -> Result<Self::Value, E> {
Ok(Some(StringOrBool::String(v.to_owned())))
}
fn visit_string<E: de::Error>(self, v: String) -> Result<Self::Value, E> {
Ok(Some(StringOrBool::String(v)))
}
fn visit_none<E: de::Error>(self) -> Result<Self::Value, E> {
Ok(None)
}
fn visit_unit<E: de::Error>(self) -> Result<Self::Value, E> {
Ok(None)
}
}
deserializer.deserialize_any(StringOrBoolVisitor)
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, JsonSchema)]
pub struct HumanDuration(
#[serde(serialize_with = "serialize_human_duration")] pub std::time::Duration,
);
impl HumanDuration {
pub fn duration(&self) -> std::time::Duration {
self.0
}
pub fn as_humantime_string(&self) -> String {
let total_secs = self.0.as_secs();
if total_secs == 0 {
return format!("{}ms", self.0.as_millis());
}
let hours = total_secs / 3600;
let mins = (total_secs % 3600) / 60;
let secs = total_secs % 60;
let mut out = String::new();
if hours > 0 {
out.push_str(&format!("{hours}h"));
}
if mins > 0 {
out.push_str(&format!("{mins}m"));
}
if secs > 0 || out.is_empty() {
out.push_str(&format!("{secs}s"));
}
out
}
}
impl<'de> Deserialize<'de> for HumanDuration {
fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>
where
D: Deserializer<'de>,
{
use serde::de::{self, Visitor};
struct DurVisitor;
impl<'de> Visitor<'de> for DurVisitor {
type Value = HumanDuration;
fn expecting(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.write_str(
"a duration string with unit suffix (e.g. \"10m\", \"15s\", \"1h30m\", \"500ms\")",
)
}
fn visit_str<E: de::Error>(self, v: &str) -> Result<Self::Value, E> {
parse_humantime_duration(v)
.map(HumanDuration)
.map_err(E::custom)
}
fn visit_string<E: de::Error>(self, v: String) -> Result<Self::Value, E> {
self.visit_str(&v)
}
}
deserializer.deserialize_str(DurVisitor)
}
}
fn serialize_human_duration<S: serde::Serializer>(
d: &std::time::Duration,
serializer: S,
) -> Result<S::Ok, S::Error> {
serializer.serialize_str(&HumanDuration(*d).as_humantime_string())
}
pub(super) fn parse_humantime_duration(input: &str) -> Result<std::time::Duration, String> {
let s = input.trim();
if s.is_empty() {
return Err("empty duration string".to_string());
}
let mut total = std::time::Duration::ZERO;
let mut number_buf = String::new();
let mut had_any = false;
let mut iter = s.chars().peekable();
while let Some(&c) = iter.peek() {
if c.is_whitespace() {
iter.next();
continue;
}
if c.is_ascii_digit() {
number_buf.push(c);
iter.next();
continue;
}
if number_buf.is_empty() {
return Err(format!("expected digit before unit in '{input}'"));
}
let mut unit = String::new();
unit.push(c);
iter.next();
if let Some(&next) = iter.peek()
&& unit == "m"
&& next == 's'
{
unit.push('s');
iter.next();
}
let n: u64 = number_buf
.parse()
.map_err(|e| format!("invalid number '{number_buf}' in '{input}': {e}"))?;
let segment = match unit.as_str() {
"ms" => std::time::Duration::from_millis(n),
"s" => std::time::Duration::from_secs(n),
"m" => std::time::Duration::from_secs(n * 60),
"h" => std::time::Duration::from_secs(n * 3600),
"d" => std::time::Duration::from_secs(n * 86_400),
other => return Err(format!("unknown duration unit '{other}' in '{input}'")),
};
total += segment;
number_buf.clear();
had_any = true;
}
if !number_buf.is_empty() {
return Err(format!(
"trailing number '{number_buf}' without a unit in '{input}'"
));
}
if !had_any {
return Err(format!("no duration components found in '{input}'"));
}
Ok(total)
}
#[derive(Debug, Clone, Copy, PartialEq, Eq, Serialize, Deserialize, Default, JsonSchema)]
#[serde(transparent)]
pub struct StringOrU32(#[serde(deserialize_with = "deserialize_u32_from_string_or_int")] pub u32);
impl StringOrU32 {
pub fn value(&self) -> u32 {
self.0
}
}
fn deserialize_u32_from_string_or_int<'de, D>(deserializer: D) -> Result<u32, D::Error>
where
D: Deserializer<'de>,
{
use serde::de::{self, Visitor};
struct U32Visitor;
impl<'de> Visitor<'de> for U32Visitor {
type Value = u32;
fn expecting(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.write_str("a u32 integer or a string parseable as octal/decimal (e.g. 18, \"0o022\", \"022\")")
}
fn visit_u64<E: de::Error>(self, v: u64) -> Result<Self::Value, E> {
u32::try_from(v).map_err(|_| E::custom(format!("value {v} does not fit in u32")))
}
fn visit_i64<E: de::Error>(self, v: i64) -> Result<Self::Value, E> {
u32::try_from(v).map_err(|_| E::custom(format!("value {v} does not fit in u32")))
}
fn visit_str<E: de::Error>(self, v: &str) -> Result<Self::Value, E> {
let trimmed = v.trim();
if let Some(rest) = trimmed
.strip_prefix("0o")
.or_else(|| trimmed.strip_prefix("0O"))
{
return u32::from_str_radix(rest, 8)
.map_err(|e| E::custom(format!("invalid octal '{v}': {e}")));
}
if trimmed.starts_with('0') && trimmed.len() > 1 {
return u32::from_str_radix(trimmed, 8)
.map_err(|e| E::custom(format!("invalid octal '{v}': {e}")));
}
trimmed
.parse::<u32>()
.map_err(|e| E::custom(format!("invalid u32 '{v}': {e}")))
}
fn visit_string<E: de::Error>(self, v: String) -> Result<Self::Value, E> {
self.visit_str(&v)
}
}
deserializer.deserialize_any(U32Visitor)
}
pub(super) fn deserialize_string_or_vec_opt<'de, D>(
deserializer: D,
) -> Result<Option<Vec<String>>, D::Error>
where
D: Deserializer<'de>,
{
use serde::de::{self, Visitor};
struct StringOrVecVisitor;
impl<'de> Visitor<'de> for StringOrVecVisitor {
type Value = Option<Vec<String>>;
fn expecting(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
f.write_str("a string, a list of strings, or null")
}
fn visit_str<E: de::Error>(self, v: &str) -> Result<Self::Value, E> {
Ok(Some(vec![v.to_owned()]))
}
fn visit_string<E: de::Error>(self, v: String) -> Result<Self::Value, E> {
Ok(Some(vec![v]))
}
fn visit_seq<A: de::SeqAccess<'de>>(self, mut seq: A) -> Result<Self::Value, A::Error> {
let mut items = Vec::new();
while let Some(item) = seq.next_element::<String>()? {
items.push(item);
}
Ok(Some(items))
}
fn visit_none<E: de::Error>(self) -> Result<Self::Value, E> {
Ok(None)
}
fn visit_unit<E: de::Error>(self) -> Result<Self::Value, E> {
Ok(None)
}
}
deserializer.deserialize_any(StringOrVecVisitor)
}