pub use git_config::*;use git_features::threading::OnceCell; use crate::{bstr::BString, repository::identity, revision::spec, Repository}; pub(crate) mod cache;mod snapshot;pub use snapshot::credential_helpers; ///pub mod overrides; pub mod tree;pub use tree::root::Tree; /// A platform to access configuration values as read from disk.////// Note that these values won't update even if the underlying file(s) change.pub struct Snapshot<'repo> {    pub(crate) repo: &'repo Repository,} /// A platform to access configuration values and modify them in memory, while making them available when this platform is dropped/// as form of auto-commit./// Note that the values will only affect this instance of the parent repository, and not other clones that may exist.////// Note that these values won't update even if the underlying file(s) change.////// Use [`forget()`][Self::forget()] to not apply any of the changes.// TODO: make it possible to load snapshots with reloading via .config() and write mutated snapshots back to disk which should be the way//       to affect all instances of a repo, probably via `config_mut()` and `config_mut_at()`.pub struct SnapshotMut<'repo> {    pub(crate) repo: Option<&'repo mut Repository>,    pub(crate) config: git_config::File<'static>,} /// A utility structure created by [`SnapshotMut::commit_auto_rollback()`] that restores the previous configuration on drop.pub struct CommitAutoRollback<'repo> {    pub(crate) repo: Option<&'repo mut Repository>,    pub(crate) prev_config: crate::Config,} pub(crate) mod section {    pub fn is_trusted(meta: &git_config::file::Metadata) -> bool {        meta.trust == git_sec::Trust::Full || meta.source.kind() != git_config::source::Kind::Repository    }} /// The error returned when failing to initialize the repository configuration.////// This configuration is on the critical path when opening a repository.#[derive(Debug, thiserror::Error)]#[allow(missing_docs)]pub enum Error {    #[error(transparent)]    ConfigBoolean(#[from] boolean::Error),    #[error(transparent)]    ConfigUnsigned(#[from] unsigned_integer::Error),    #[error(transparent)]    ConfigTypedString(#[from] key::GenericErrorWithValue),    #[error("Cannot handle objects formatted as {:?}", .name)]    UnsupportedObjectFormat { name: BString },    #[error(transparent)]    CoreAbbrev(#[from] abbrev::Error),    #[error("Could not read configuration file")]    Io(#[from] std::io::Error),    #[error(transparent)]    Init(#[from] git_config::file::init::Error),    #[error(transparent)]    ResolveIncludes(#[from] git_config::file::includes::Error),    #[error(transparent)]    FromEnv(#[from] git_config::file::init::from_env::Error),    #[error(transparent)]    PathInterpolation(#[from] git_config::path::interpolate::Error),    #[error("{source:?} configuration overrides at open or init time could not be applied.")]    ConfigOverrides {        #[source]        err: overrides::Error,        source: git_config::Source,    },} ///pub mod diff {    ///    pub mod algorithm {        use crate::bstr::BString;         /// The error produced when obtaining `diff.algorithm`.        #[derive(Debug, thiserror::Error)]        #[allow(missing_docs)]        pub enum Error {            #[error("Unknown diff algorithm named '{name}'")]            Unknown { name: BString },            #[error("The '{name}' algorithm is not yet implemented")]            Unimplemented { name: BString },        }    }} ///pub mod checkout_options {    /// The error produced when collecting all information needed for checking out files into a worktree.    #[derive(Debug, thiserror::Error)]    #[allow(missing_docs)]    pub enum Error {        #[error(transparent)]        ConfigCheckStat(#[from] super::key::GenericErrorWithValue),        #[error(transparent)]        ConfigBoolean(#[from] super::boolean::Error),        #[error(transparent)]        CheckoutWorkers(#[from] super::checkout::workers::Error),        #[error("Failed to interpolate the attribute file configured at `core.attributesFile`")]        AttributesFileInterpolation(#[from] git_config::path::interpolate::Error),    }} ///pub mod protocol {    ///    pub mod allow {        use crate::bstr::BString;         /// The error returned when obtaining the permission for a particular scheme.        #[derive(Debug, thiserror::Error)]        #[allow(missing_docs)]        #[error("The value {value:?} must be allow|deny|user in configuration key protocol{0}.allow", scheme.as_ref().map(|s| format!(".{s}")).unwrap_or_default())]        pub struct Error {            pub scheme: Option<String>,            pub value: BString,        }    }} ///pub mod ssh_connect_options {    /// The error produced when obtaining ssh connection configuration.    #[derive(Debug, thiserror::Error)]    #[allow(missing_docs)]    #[error(transparent)]    pub struct Error(#[from] super::key::GenericErrorWithValue);} ///pub mod key {    use crate::bstr::BString;     const fn prefix(kind: char) -> &'static str {        match kind {            'n' => "",                         // nothing            'k' => "The value of key",         // generic key            't' => "The date format at key",   // time            'i' => "The timeout at key",       // timeout            'd' => "The duration [ms] at key", // duration            'b' => "The boolean at key",       // boolean            'v' => "The key",                  // generic key with value            'r' => "The refspec at",           // refspec            's' => "The ssl version at",       // ssl-version            'u' => "The url at",               // url            'w' => "The utf-8 string at",      // string            _ => panic!("BUG: invalid prefix kind - add a case for it here"),        }    }    const fn suffix(kind: char) -> &'static str {        match kind {            'd' => "could not be decoded",                    // decoding            'i' => "was invalid",                             // invalid            'u' => "could not be parsed as unsigned integer", // unsigned integer            'p' => "could not be parsed",                     // parsing            _ => panic!("BUG: invalid suffix kind - add a case for it here"),        }    }    /// A generic error suitable to produce decent messages for all kinds of configuration errors with config-key granularity.    ///    /// This error is meant to be reusable and help produce uniform error messages related to parsing any configuration key.    #[derive(Debug, thiserror::Error)]    #[error("{} \"{key}{}\"{} {}", prefix(PREFIX), value.as_ref().map(|v| format!("={v}")).unwrap_or_default(), environment_override.as_deref().map(|var| format!(" (possibly from {var})")).unwrap_or_default(), suffix(SUFFIX))]    pub struct Error<E: std::error::Error + Send + Sync + 'static, const PREFIX: char, const SUFFIX: char> {        /// The configuration key that contained the value.        pub key: BString,        /// The value that was assigned to `key`.        pub value: Option<BString>,        /// The associated environment variable that would override this value.        pub environment_override: Option<&'static str>,        /// The source of the error if there was one.        pub source: Option<E>,    }     /// Initialization    /// Instantiate a new error from the given `key`.    ///    /// Note that specifics of the error message are defined by the `PREFIX` and `SUFFIX` which is usually defined by a typedef.    impl<T, E, const PREFIX: char, const SUFFIX: char> From<&'static T> for Error<E, PREFIX, SUFFIX>    where        E: std::error::Error + Send + Sync + 'static,        T: super::tree::Key,    {        fn from(key: &'static T) -> Self {            Error {                key: key.logical_name().into(),                value: None,                environment_override: key.environment_override(),                source: None,            }        }    }     /// Initialization    impl<E, const PREFIX: char, const SUFFIX: char> Error<E, PREFIX, SUFFIX>    where        E: std::error::Error + Send + Sync + 'static,    {        /// Instantiate an error with all data from `key` along with the `value` of the key.        pub fn from_value(key: &'static impl super::tree::Key, value: BString) -> Self {            Error::from(key).with_value(value)        }    }     /// Builder    impl<E, const PREFIX: char, const SUFFIX: char> Error<E, PREFIX, SUFFIX>    where        E: std::error::Error + Send + Sync + 'static,    {        /// Attach the given `err` as source.        pub fn with_source(mut self, err: E) -> Self {            self.source = Some(err);            self        }         /// Attach the given `value` as value we observed when the error was produced.        pub fn with_value(mut self, value: BString) -> Self {            self.value = Some(value);            self        }    }     /// A generic key error for use when it doesn't seem worth it say more than 'key is invalid' along with meta-data.    pub type GenericError<E = git_config::value::Error> = Error<E, 'k', 'i'>;     /// A generic key error which will also contain a value.    pub type GenericErrorWithValue<E = git_config::value::Error> = Error<E, 'v', 'i'>;} ///pub mod checkout {    ///    pub mod workers {        use crate::config;         /// The error produced when failing to parse the the `checkout.workers` key.        pub type Error = config::key::Error<git_config::value::Error, 'n', 'd'>;    }} ///pub mod abbrev {    use crate::bstr::BString;     /// The error describing an incorrect `core.abbrev` value.    #[derive(Debug, thiserror::Error)]    #[error("Invalid value for 'core.abbrev' = '{}'. It must be between 4 and {}", .value, .max)]    pub struct Error {        /// The value found in the git configuration        pub value: BString,        /// The maximum abbreviation length, the length of an object hash.        pub max: u8,    }} ///pub mod remote {    ///    pub mod symbolic_name {        /// The error produced when failing to produce a symbolic remote name from configuration.        pub type Error = super::super::key::Error<crate::remote::name::Error, 'v', 'i'>;    }} ///pub mod time {    /// The error produced when failing to parse time from configuration.    pub type Error = super::key::Error<git_date::parse::Error, 't', 'i'>;} ///pub mod lock_timeout {    /// The error produced when failing to parse timeout for locks.    pub type Error = super::key::Error<git_config::value::Error, 'i', 'i'>;} ///pub mod duration {    /// The error produced when failing to parse durations (in milliseconds).    pub type Error = super::key::Error<git_config::value::Error, 'd', 'i'>;} ///pub mod boolean {    /// The error produced when failing to parse time from configuration.    pub type Error = super::key::Error<git_config::value::Error, 'b', 'i'>;} ///pub mod unsigned_integer {    /// The error produced when failing to parse a signed integer from configuration.    pub type Error = super::key::Error<git_config::value::Error, 'k', 'u'>;} ///pub mod url {    /// The error produced when failing to parse a url from the configuration.    pub type Error = super::key::Error<git_url::parse::Error, 'u', 'p'>;} ///pub mod string {    /// The error produced when failing to interpret configuration as UTF-8 encoded string.    pub type Error = super::key::Error<crate::bstr::Utf8Error, 'w', 'd'>;} ///pub mod refspec {    /// The error produced when failing to parse a refspec from the configuration.    pub type Error = super::key::Error<git_refspec::parse::Error, 'r', 'p'>;} ///pub mod ssl_version {    /// The error produced when failing to parse a refspec from the configuration.    pub type Error = super::key::Error<std::convert::Infallible, 's', 'i'>;} ///pub mod transport {    use std::borrow::Cow;     use crate::bstr::BStr;     /// The error produced when configuring a transport for a particular protocol.    #[derive(Debug, thiserror::Error)]    #[allow(missing_docs)]    pub enum Error {        #[error(            "Could not interpret configuration key {key:?} as {kind} integer of desired range with value: {actual}"        )]        InvalidInteger {            key: &'static str,            kind: &'static str,            actual: i64,        },        #[error("Could not interpret configuration key {key:?}")]        ConfigValue {            source: git_config::value::Error,            key: &'static str,        },        #[error("Could not interpolate path at key {key:?}")]        InterpolatePath {            source: git_config::path::interpolate::Error,            key: &'static str,        },        #[error("Could not decode value at key {key:?} as UTF-8 string")]        IllformedUtf8 {            key: Cow<'static, BStr>,            source: crate::config::string::Error,        },        #[error("Invalid URL passed for configuration")]        ParseUrl(#[from] git_url::parse::Error),        #[error("Could obtain configuration for an HTTP url")]        Http(#[from] http::Error),    }     ///    pub mod http {        use std::borrow::Cow;         use crate::bstr::BStr;         /// The error produced when configuring a HTTP transport.        #[derive(Debug, thiserror::Error)]        #[allow(missing_docs)]        pub enum Error {            #[error(transparent)]            Boolean(#[from] crate::config::boolean::Error),            #[error(transparent)]            UnsignedInteger(#[from] crate::config::unsigned_integer::Error),            #[error(transparent)]            ConnectTimeout(#[from] crate::config::duration::Error),            #[error("The proxy authentication at key `{key}` is invalid")]            InvalidProxyAuthMethod {                source: crate::config::key::GenericErrorWithValue,                key: Cow<'static, BStr>,            },            #[error("Could not configure the credential helpers for the authenticated proxy url")]            ConfigureProxyAuthenticate(#[from] crate::config::snapshot::credential_helpers::Error),            #[error(transparent)]            InvalidSslVersion(#[from] crate::config::ssl_version::Error),            #[error("The HTTP version must be 'HTTP/2' or 'HTTP/1.1'")]            InvalidHttpVersion(#[from] crate::config::key::GenericErrorWithValue),            #[error("The follow redirects value 'initial', or boolean true or false")]            InvalidFollowRedirects(#[source] crate::config::key::GenericErrorWithValue),        }    }} /// Utility type to keep pre-obtained configuration values, only for those required during initial setup/// and other basic operations that are common enough to warrant a permanent cache.////// All other values are obtained lazily using OnceCell.#[derive(Clone)]pub(crate) struct Cache {    pub resolved: crate::Config,    /// The hex-length to assume when shortening object ids. If `None`, it should be computed based on the approximate object count.    pub hex_len: Option<usize>,    /// true if the repository is designated as 'bare', without work tree.    pub is_bare: bool,    /// The type of hash to use.    pub object_hash: git_hash::Kind,    /// If true, multi-pack indices, whether present or not, may be used by the object database.    pub use_multi_pack_index: bool,    /// The representation of `core.logallrefupdates`, or `None` if the variable wasn't set.    pub reflog: Option<git_ref::store::WriteReflog>,    /// The configured user agent for presentation to servers.    pub(crate) user_agent: OnceCell<String>,    /// identities for later use, lazy initialization.    pub(crate) personas: OnceCell<identity::Personas>,    /// A lazily loaded rewrite list for remote urls    pub(crate) url_rewrite: OnceCell<crate::remote::url::Rewrite>,    /// A lazily loaded mapping to know which url schemes to allow    #[cfg(any(feature = "blocking-network-client", feature = "async-network-client"))]    pub(crate) url_scheme: OnceCell<crate::remote::url::SchemePermission>,    /// The algorithm to use when diffing blobs    pub(crate) diff_algorithm: OnceCell<git_diff::blob::Algorithm>,    /// The amount of bytes to use for a memory backed delta pack cache. If `Some(0)`, no cache is used, if `None`    /// a standard cache is used which costs near to nothing and always pays for itself.    pub(crate) pack_cache_bytes: Option<usize>,    /// The amount of bytes to use for caching whole objects, or 0 to turn it off entirely.    pub(crate) object_cache_bytes: usize,    /// The config section filter from the options used to initialize this instance. Keep these in sync!    filter_config_section: fn(&git_config::file::Metadata) -> bool,    /// The object kind to pick if a prefix is ambiguous.    pub object_kind_hint: Option<spec::parse::ObjectKindHint>,    /// If true, we are on a case-insensitive file system.    pub ignore_case: bool,    /// If true, we should default what's possible if something is misconfigured, on case by case basis, to be more resilient.    /// Also available in options! Keep in sync!    pub lenient_config: bool,    /// Define how we can use values obtained with `xdg_config(…)` and its `XDG_CONFIG_HOME` variable.    xdg_config_home_env: git_sec::Permission,    /// Define how we can use values obtained with `xdg_config(…)`. and its `HOME` variable.    home_env: git_sec::Permission,    // TODO: make core.precomposeUnicode available as well.}