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identity.rs
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identity.rs
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use std::borrow::Cow;
use std::time::SystemTime;
use crate::{bstr::BString, permission};
/// Identity handling.
impl crate::Repository {
/// Return a crate-specific constant signature with [`Time`][git_actor::Time] set to now,
/// in a similar vein as the default that git chooses if there is nothing configured.
///
/// This can be useful as fallback for an unset `committer` or `author`.
///
/// # Note
///
/// The values are cached when the repository is instantiated.
pub fn user_default(&self) -> git_actor::SignatureRef<'_> {
git_actor::SignatureRef {
name: "gitoxide".into(),
email: "gitoxide@localhost".into(),
time: git_date::Time::now_local_or_utc(),
}
}
/// Return the committer as configured by this repository, which is determined by…
///
/// * …the git configuration `committer.name|email`…
/// * …the `GIT_COMMITTER_(NAME|EMAIL|DATE)` environment variables…
/// * …the configuration for `user.name|email` as fallback…
///
/// …and in that order, or `None` if there was nothing configured. In that case, one may use the
/// [`committer_or_default()`][Self::committer_or_default()] method.
///
/// # Note
///
/// The values are cached when the repository is instantiated.
pub fn committer(&self) -> Option<git_actor::SignatureRef<'_>> {
let p = self.config.personas();
git_actor::SignatureRef {
name: p.committer.name.as_ref().or(p.user.name.as_ref()).map(|v| v.as_ref())?,
email: p
.committer
.email
.as_ref()
.or(p.user.email.as_ref())
.map(|v| v.as_ref())?,
time: p.committer.time.unwrap_or_else(git_date::Time::now_local_or_utc),
}
.into()
}
/// Like [`committer()`][Self::committer()], but may use a default value in case nothing is configured.
pub fn committer_or_default(&self) -> git_actor::SignatureRef<'_> {
self.committer().unwrap_or_else(|| self.user_default())
}
/// Return the author as configured by this repository, which is determined by…
///
/// * …the git configuration `author.name|email`…
/// * …the `GIT_AUTHOR_(NAME|EMAIL|DATE)` environment variables…
/// * …the configuration for `user.name|email` as fallback…
///
/// …and in that order, or `None` if there was nothing configured. In that case, one may use the
/// [`author_or_default()`][Self::author_or_default()] method.
///
/// # Note
///
/// The values are cached when the repository is instantiated.
pub fn author(&self) -> Option<git_actor::SignatureRef<'_>> {
let p = self.config.personas();
git_actor::SignatureRef {
name: p.author.name.as_ref().or(p.user.name.as_ref()).map(|v| v.as_ref())?,
email: p.author.email.as_ref().or(p.user.email.as_ref()).map(|v| v.as_ref())?,
time: p.author.time.unwrap_or_else(git_date::Time::now_local_or_utc),
}
.into()
}
/// Like [`author()`][Self::author()], but may use a default value in case nothing is configured.
pub fn author_or_default(&self) -> git_actor::SignatureRef<'_> {
self.author().unwrap_or_else(|| self.user_default())
}
}
#[derive(Debug, Clone)]
pub(crate) struct Entity {
pub name: Option<BString>,
pub email: Option<BString>,
/// A time parsed from an environment variable.
pub time: Option<git_actor::Time>,
}
#[derive(Debug, Clone)]
pub(crate) struct Personas {
user: Entity,
committer: Entity,
author: Entity,
}
impl Personas {
pub fn from_config_and_env(config: &git_config::File<'_>, git_env: &permission::env_var::Resource) -> Self {
fn env_var(name: &str) -> Option<BString> {
std::env::var_os(name).map(|value| git_path::into_bstr(Cow::Owned(value.into())).into_owned())
}
fn entity_in_section(name: &str, config: &git_config::File<'_>) -> (Option<BString>, Option<BString>) {
config
.section(name, None)
.map(|section| {
(
section.value("name").map(|v| v.into_owned()),
section.value("email").map(|v| v.into_owned()),
)
})
.unwrap_or_default()
}
let (mut committer_name, mut committer_email) = entity_in_section("committer", config);
let mut committer_date = None;
let (mut author_name, mut author_email) = entity_in_section("author", config);
let mut author_date = None;
let (user_name, mut user_email) = entity_in_section("user", config);
if git_env.eq(&git_sec::Permission::Allow) {
committer_name = committer_name.or_else(|| env_var("GIT_COMMITTER_NAME"));
committer_email = committer_email.or_else(|| env_var("GIT_COMMITTER_EMAIL"));
committer_date = std::env::var("GIT_COMMITTER_DATE")
.ok()
.and_then(|date| git_date::parse(&date, Some(SystemTime::now())).ok());
author_name = author_name.or_else(|| env_var("GIT_AUTHOR_NAME"));
author_email = author_email.or_else(|| env_var("GIT_AUTHOR_EMAIL"));
author_date = std::env::var("GIT_AUTHOR_DATE")
.ok()
.and_then(|date| git_date::parse(&date, Some(SystemTime::now())).ok());
user_email = user_email.or_else(|| env_var("EMAIL")); // NOTE: we don't have permission for this specific one…
}
Personas {
user: Entity {
name: user_name,
email: user_email,
time: None,
},
committer: Entity {
name: committer_name,
email: committer_email,
time: committer_date,
},
author: Entity {
name: author_name,
email: author_email,
time: author_date,
},
}
}
}