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use std::convert::TryFrom;
use super::Error;
use crate::{bstr::ByteSlice, revision::spec::parse::ObjectKindHint};
pub(crate) fn interpolate_context<'a>(
git_install_dir: Option<&'a std::path::Path>,
home_dir: Option<&'a std::path::Path>,
) -> git_config::path::interpolate::Context<'a> {
git_config::path::interpolate::Context {
git_install_dir,
home_dir,
home_for_user: Some(git_config::path::interpolate::home_for_user), }
}
pub(crate) fn base_options(lossy: Option<bool>) -> git_config::file::init::Options<'static> {
git_config::file::init::Options {
lossy: lossy.unwrap_or(!cfg!(debug_assertions)),
..Default::default()
}
}
pub(crate) fn config_bool(
config: &git_config::File<'_>,
key: &str,
default: bool,
lenient: bool,
) -> Result<bool, Error> {
let (section, key) = key.split_once('.').expect("valid section.key format");
config
.boolean(section, None, key)
.unwrap_or(Ok(default))
.map_err(|err| Error::DecodeBoolean {
value: err.input,
key: key.into(),
})
.with_lenient_default(lenient)
}
pub(crate) fn query_refupdates(
config: &git_config::File<'static>,
lenient_config: bool,
) -> Result<Option<git_ref::store::WriteReflog>, Error> {
match config
.boolean("core", None, "logAllRefUpdates")
.and_then(|b| b.ok())
.map(|b| {
b.then(|| git_ref::store::WriteReflog::Normal)
.unwrap_or(git_ref::store::WriteReflog::Disable)
}) {
Some(val) => Ok(Some(val)),
None => match config.string("core", None, "logAllRefUpdates") {
Some(val) if val.eq_ignore_ascii_case(b"always") => Ok(Some(git_ref::store::WriteReflog::Always)),
Some(_val) if lenient_config => Ok(None),
Some(val) => Err(Error::LogAllRefUpdates {
value: val.into_owned(),
}),
None => Ok(None),
},
}
}
pub trait ApplyLeniency {
fn with_leniency(self, is_lenient: bool) -> Self;
}
pub trait ApplyLeniencyDefault {
fn with_lenient_default(self, is_lenient: bool) -> Self;
}
impl<T, E> ApplyLeniency for Result<Option<T>, E> {
fn with_leniency(self, is_lenient: bool) -> Self {
match self {
Ok(v) => Ok(v),
Err(_) if is_lenient => Ok(None),
Err(err) => Err(err),
}
}
}
impl<T, E> ApplyLeniencyDefault for Result<T, E>
where
T: Default,
{
fn with_lenient_default(self, is_lenient: bool) -> Self {
match self {
Ok(v) => Ok(v),
Err(_) if is_lenient => Ok(T::default()),
Err(err) => Err(err),
}
}
}
pub(crate) fn reflog_or_default(
config_reflog: Option<git_ref::store::WriteReflog>,
has_worktree: bool,
) -> git_ref::store::WriteReflog {
config_reflog.unwrap_or_else(|| {
has_worktree
.then(|| git_ref::store::WriteReflog::Normal)
.unwrap_or(git_ref::store::WriteReflog::Disable)
})
}
pub(crate) fn parse_object_caches(
config: &git_config::File<'static>,
lenient: bool,
mut filter_config_section: fn(&git_config::file::Metadata) -> bool,
) -> Result<(Option<usize>, usize), Error> {
let key = "core.deltaBaseCacheLimit";
let pack_cache_bytes = config
.integer_filter_by_key(key, &mut filter_config_section)
.transpose()
.with_leniency(lenient)
.map_err(|err| Error::Value { source: err, key })?;
let key = "gitoxide.objects.cacheLimit";
let object_cache_bytes = config
.integer_filter_by_key(key, &mut filter_config_section)
.transpose()
.with_leniency(lenient)
.map_err(|err| Error::Value { source: err, key })?
.unwrap_or_default();
Ok((
pack_cache_bytes.and_then(|v| v.try_into().ok()),
object_cache_bytes.try_into().unwrap_or_default(),
))
}
pub(crate) fn parse_core_abbrev(
config: &git_config::File<'static>,
object_hash: git_hash::Kind,
) -> Result<Option<usize>, Error> {
match config.string("core", None, "abbrev") {
Some(hex_len_str) => {
if hex_len_str.trim().is_empty() {
return Err(Error::EmptyValue { key: "core.abbrev" });
}
if hex_len_str.trim().eq_ignore_ascii_case(b"auto") {
Ok(None)
} else {
let value_bytes = hex_len_str.as_ref();
if let Ok(false) = git_config::Boolean::try_from(value_bytes).map(Into::into) {
Ok(object_hash.len_in_hex().into())
} else {
let value = git_config::Integer::try_from(value_bytes)
.map_err(|_| Error::CoreAbbrev {
value: hex_len_str.clone().into_owned(),
max: object_hash.len_in_hex() as u8,
})?
.to_decimal()
.ok_or_else(|| Error::CoreAbbrev {
value: hex_len_str.clone().into_owned(),
max: object_hash.len_in_hex() as u8,
})?;
if value < 4 || value as usize > object_hash.len_in_hex() {
return Err(Error::CoreAbbrev {
value: hex_len_str.clone().into_owned(),
max: object_hash.len_in_hex() as u8,
});
}
Ok(Some(value as usize))
}
}
}
None => Ok(None),
}
}
pub(crate) fn disambiguate_hint(config: &git_config::File<'static>) -> Option<ObjectKindHint> {
config.string("core", None, "disambiguate").and_then(|value| {
Some(match value.as_ref().as_ref() {
b"commit" => ObjectKindHint::Commit,
b"committish" => ObjectKindHint::Committish,
b"tree" => ObjectKindHint::Tree,
b"treeish" => ObjectKindHint::Treeish,
b"blob" => ObjectKindHint::Blob,
_ => return None,
})
})
}