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extern crate failure;
extern crate git2;
#[macro_use]
extern crate slog;
mod owned;
mod stack;
mod commute;
pub struct Config<'a> {
pub dry_run: bool,
pub force: bool,
pub base: Option<&'a str>,
pub logger: &'a slog::Logger,
}
pub fn run(config: &Config) -> Result<(), failure::Error> {
let repo = git2::Repository::open_from_env()?;
debug!(config.logger, "repository found"; "path" => repo.path().to_str());
let base = match config.base {
// https://github.com/rust-lang/rfcs/issues/1815
Some(commitish) => Some(repo.find_commit(repo.revparse_single(commitish)?.id())?),
None => None,
};
let mut diff_options = Some({
let mut ret = git2::DiffOptions::new();
ret.context_lines(0)
.id_abbrev(40)
.ignore_filemode(true)
.ignore_submodules(true);
ret
});
let stack: Vec<_> = {
let stack = stack::working_stack(&repo, base.as_ref(), config.logger)?;
let mut diffs = Vec::with_capacity(stack.len());
for commit in &stack {
let diff = owned::Diff::new(&repo.diff_tree_to_tree(
if commit.parents().len() == 0 {
None
} else {
Some(commit.parent(0)?.tree()?)
}.as_ref(),
Some(&commit.tree()?),
diff_options.as_mut(),
)?)?;
debug!(config.logger, "parsed commit diff";
"commit" => commit.id().to_string(),
"diff" => format!("{:?}", diff),
);
diffs.push(diff);
}
stack.into_iter().zip(diffs.into_iter()).collect()
};
let index = owned::Diff::new(&repo.diff_tree_to_index(
Some(&repo.head()?.peel_to_tree()?),
None,
diff_options.as_mut(),
)?)?;
debug!(config.logger, "parsed index";
"index" => format!("{:?}", index),
);
Ok(())
}
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