use cargo_metadata::{
camino::{Utf8Path, Utf8PathBuf},
Metadata, Package,
};
use git_repository as git;
use crate::version::BumpSpec;
pub struct Context {
pub root: Utf8PathBuf,
pub meta: Metadata,
pub repo: git::Repository,
pub crate_names: Vec<String>,
pub crates_index: crate::crates_index::Index,
pub history: Option<crate::commit::History>,
pub bump: BumpSpec,
pub bump_dependencies: BumpSpec,
}
impl Context {
pub fn new(
crate_names: Vec<String>,
force_history_segmentation: bool,
bump: BumpSpec,
bump_dependencies: BumpSpec,
) -> anyhow::Result<Self> {
let meta = cargo_metadata::MetadataCommand::new().exec()?;
let root = meta.workspace_root.clone();
let repo = git::discover(&root)?.apply_environment();
let crates_index = crate::crates_index::Index::new_cargo_default()?;
let history = (force_history_segmentation
|| matches!(bump, BumpSpec::Auto)
|| matches!(bump_dependencies, BumpSpec::Auto))
.then(|| crate::git::history::collect(&repo))
.transpose()?
.flatten();
Ok(Context {
root,
repo,
meta,
crate_names: fill_in_root_crate_if_needed(crate_names)?,
crates_index,
history,
bump,
bump_dependencies,
})
}
pub(crate) fn repo_relative_path<'a>(&self, p: &'a Package) -> Option<&'a Utf8Path> {
let dir = p
.manifest_path
.parent()
.expect("parent of a file is always present")
.strip_prefix(&self.root)
.expect("workspace members are relative to the root directory");
if dir.as_os_str().is_empty() {
None
} else {
dir.into()
}
}
}
fn fill_in_root_crate_if_needed(crate_names: Vec<String>) -> anyhow::Result<Vec<String>> {
Ok(if crate_names.is_empty() {
let current_dir = std::env::current_dir()?;
let manifest = current_dir.join("Cargo.toml");
let dir_name = current_dir
.file_name()
.expect("a valid directory with a name")
.to_str()
.expect("directory is UTF8 representable");
let crate_name = if manifest.is_file() {
cargo_toml::Manifest::from_path(manifest)
.map(|manifest| manifest.package.map_or(dir_name.to_owned(), |p| p.name))
.unwrap_or_else(|_| dir_name.to_owned())
} else {
dir_name.to_owned()
};
log::warn!(
"Using '{}' as crate name as no one was provided. Specify one if this isn't correct",
crate_name
);
vec![crate_name]
} else {
crate_names
})
}