Rewrite hook implementation
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2929b77248
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132d0d2698
1 changed files with 50 additions and 76 deletions
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@ -1,9 +1,11 @@
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use std::path::PathBuf;
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use std::path::Path;
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use std::fmt::{Debug, Formatter, Error as FmtError};
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use std::result::Result as RResult;
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use toml::Value;
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use git2::{Reference as GitReference, Repository, Error as Git2Error};
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use git2::{ADD_DEFAULT, STATUS_WT_NEW, STATUS_WT_MODIFIED, IndexMatchedPath};
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use libimagstore::storeid::StoreId;
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use libimagstore::hook::Hook;
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@ -78,12 +80,27 @@ impl HookDataAccessorProvider for CreateHook {
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impl StoreIdAccessor for CreateHook {
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/// The implementation of the CreateHook
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///
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/// # Scope
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///
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/// What this function has to do is _adding_ the new entry to the git index.
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/// After that, the UpdateHook will take care of committing the changes or new file.
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///
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fn access(&self, id: &StoreId) -> HookResult<()> {
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use vcs::git::action::StoreAction;
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use vcs::git::config::commit_message;
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debug!("[GIT CREATE HOOK]: {:?}", id);
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let path = try!(id.into_pathbuf().map_err_into(GHEK::StoreIdHandlingError));
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let cfg = try!(
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self.runtime
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.config_value_or_err()
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.map_dbg_err_str("[GIT CREATE HOOK]: Couldn't get Value object from config")
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);
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debug!("[GIT CREATE HOOK]: Ensuring branch checkout");
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try!(self
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.runtime
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@ -92,83 +109,40 @@ impl StoreIdAccessor for CreateHook {
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.map_err(|e| HEK::HookExecutionError.into_error_with_cause(e)));
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debug!("[GIT CREATE HOOK]: Branch checked out");
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self.runtime
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.config_value_or_err()
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.map_dbg_err_str("[GIT CREATE HOOK]: Couldn't get Value object from config")
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.and_then(|cfg| {
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debug!("[GIT CREATE HOOK]: Getting repository");
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let repo = try!(
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self.runtime
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.repository()
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.map(|r| (r, cfg))
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.map_dbg_err_str("[GIT CREATE HOOK]: Couldn't fetch Repository")
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.map_err_into(GHEK::RepositoryError)
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.map_err(|e| e.into())
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})
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.and_then(|(repo, cfg)| {
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repo.signature()
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.map(|s| (repo, cfg, s))
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.map_dbg_err_str("[GIT CREATE HOOK]: Couldn't fetch Signature")
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.map_err_into(GHEK::RepositorySignatureFetchingError)
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.map_err_into(GHEK::RepositoryError)
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.map_err(|e| e.into())
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})
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.and_then(|(repo, cfg, sig)| {
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repo.index()
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.map_dbg_err_str("[GIT CREATE HOOK]: Couldn't fetch Index")
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.and_then(|mut idx| idx.write_tree().map(|t| (idx, t)))
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.map_dbg_err_str("[GIT CREATE HOOK]: Couldn't write Tree")
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.and_then(|(idx, tree_id)| repo.find_tree(tree_id).map(|t| (idx, t)))
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.map_dbg_err_str("[GIT CREATE HOOK]: Couldn't find Tree")
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.map(|(idx, tree)| (repo, cfg, sig, idx, tree))
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.map_err_into(GHEK::RepositoryIndexFetchingError)
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.map_err_into(GHEK::RepositoryError)
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.map_err(|e| e.into())
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})
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.and_then(|(repo, cfg, sig, mut idx, tree)| {
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idx.add_path(id)
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.map(|_| (repo, cfg, sig, idx, tree))
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.map_dbg_err_str("[GIT CREATE HOOK]: Couldn't add Path")
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.map_dbg_err(|_| format!("\tpath = {:?}", id))
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.map_dbg_err(|e| format!("\terr = {:?}", e))
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.map_err_into(GHEK::RepositoryPathAddingError)
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.map_err_into(GHEK::RepositoryError)
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.map_err(|e| e.into())
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})
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.and_then(|(repo, cfg, sig, idx, tree)| {
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repo.head()
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.map_dbg_err_str("[GIT CREATE HOOK]: Couldn't fetch HEAD")
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.map_err_into(GHEK::RepositoryHeadFetchingError)
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.map(|h| h.target())
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.and_then(|oid| {
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match oid {
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Some(oid) => {
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repo.find_commit(oid)
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.map(|c| Some(c))
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.map_dbg_err_str("[GIT CREATE HOOK]: Couldn't find commit")
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.map_dbg_err(|_| format!("\toid = {:?}", oid))
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.map_err_into(GHEK::RepositoryCommitFindingError)
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},
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None => Ok(None),
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);
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debug!("[GIT CREATE HOOK]: Repository object fetched");
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let index = try!(repo.index().map_err_into(GHEK::RepositoryIndexFetchingError));
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let file_status = try!(
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repo.status_file(&path).map_err_into(GHEK::RepositoryFileStatusError)
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);
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let cb = &mut |path: &Path, _matched_spec: &[u8]| -> i32 {
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if file_status.contains(STATUS_WT_MODIFIED) ||
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file_status.contains(STATUS_WT_NEW) {
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debug!("[GIT CREATE HOOK]: File is new or modified: {}", path.display());
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0
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} else {
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debug!("[GIT CREATE HOOK]: Ignoring file: {}", path.display());
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1
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}
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})
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.map_err_into(GHEK::RepositoryError)
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.map_err(|e| e.into())
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.map(|parent| (repo, cfg, sig, idx, tree, parent))
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})
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.and_then(|(repo, cfg, sig, idx, tree, opt_parent)| {
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let (msg, parents) = match opt_parent {
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None => (String::from("Initial commit"), vec![]),
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Some(p) => (commit_message(&cfg, StoreAction::Create), vec![p]),
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};
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let parents = parents.iter().collect::<Vec<_>>();
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repo.commit(Some("HEAD"), &sig, &sig, &msg[..], &tree, &parents)
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.map_dbg_err_str("[GIT CREATE HOOK]: Couldn't commit")
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.map_err_into(GHEK::RepositoryCommittingError)
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.map_err_into(GHEK::RepositoryError)
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.map_err(|e| e.into())
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})
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.map(|_| ())
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try!(
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index.add_all(&[path], ADD_DEFAULT, Some(cb as &mut IndexMatchedPath))
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.map_err_into(GHEK::RepositoryPathAddingError)
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);
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index.write().map_err_into(GHEK::RepositoryIndexWritingError).map_err(|e| e.into())
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}
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}
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