pub fn restricted() -> crate::open::Options {
crate::open::Options::isolated().config_overrides(["user.name=gitoxide", "user.email=gitoxide@localhost"])
}
fn hex_to_id(hex: &str) -> gix_hash::ObjectId {
gix_hash::ObjectId::from_hex(hex.as_bytes()).expect("40 bytes hex")
}
mod update {
use gix_testtools::Result;
use super::hex_to_id;
use crate as gix;
fn base_repo_path() -> String {
gix::path::realpath(
gix_testtools::scripted_fixture_read_only("make_remote_repos.sh")
.unwrap()
.join("base"),
)
.unwrap()
.to_string_lossy()
.into_owned()
}
fn repo(name: &str) -> gix::Repository {
let dir = gix_testtools::scripted_fixture_read_only_with_args_single_archive(
"make_fetch_repos.sh",
[base_repo_path()],
)
.unwrap();
gix::open_opts(dir.join(name), restricted()).unwrap()
}
fn named_repo(name: &str) -> gix::Repository {
let dir = gix_testtools::scripted_fixture_read_only("make_remote_repos.sh").unwrap();
gix::open_opts(dir.join(name), restricted()).unwrap()
}
fn repo_rw(name: &str) -> (gix::Repository, gix_testtools::tempfile::TempDir) {
let dir = gix_testtools::scripted_fixture_writable_with_args_single_archive(
"make_fetch_repos.sh",
[base_repo_path()],
gix_testtools::Creation::Execute,
)
.unwrap();
let repo = gix::open_opts(dir.path().join(name), restricted()).unwrap();
(repo, dir)
}
use gix_ref::{
transaction::{Change, LogChange, PreviousValue, RefEdit, RefLog},
Target, TargetRef,
};
use crate::{
bstr::BString,
remote::{
fetch,
fetch::{
refmap::{Mapping, Source, SpecIndex},
refs::{tests::restricted, update::TypeChange},
RefLogMessage,
},
},
};
#[test]
fn various_valid_updates() {
let repo = repo("two-origins");
for (spec, expected_mode, reflog_message, detail) in [
(
"refs/heads/main:refs/remotes/origin/main",
fetch::refs::update::Mode::NoChangeNeeded,
Some("no update will be performed"),
"these refs are en-par since the initial clone",
),
(
"refs/heads/main",
fetch::refs::update::Mode::NoChangeNeeded,
None,
"without local destination ref there is nothing to do for us, ever (except for FETCH_HEADs) later",
),
(
"refs/heads/main:refs/remotes/origin/new-main",
fetch::refs::update::Mode::New,
Some("storing ref"),
"the destination branch doesn't exist and needs to be created",
),
(
"refs/heads/main:refs/heads/feature",
fetch::refs::update::Mode::New,
Some("storing head"),
"reflog messages are specific to the type of branch stored, to some limited extend",
),
(
"refs/heads/main:refs/tags/new-tag",
fetch::refs::update::Mode::New,
Some("storing tag"),
"reflog messages are specific to the type of branch stored, to some limited extend",
),
(
"+refs/heads/main:refs/remotes/origin/new-main",
fetch::refs::update::Mode::New,
Some("storing ref"),
"just to validate that we really are in dry-run mode, or else this ref would be present now",
),
(
"+refs/heads/main:refs/remotes/origin/g",
fetch::refs::update::Mode::FastForward,
Some("fast-forward (guessed in dry-run)"),
"a forced non-fastforward (main goes backwards), but dry-run calls it fast-forward",
),
(
"+refs/heads/main:refs/tags/b-tag",
fetch::refs::update::Mode::Forced,
Some("updating tag"),
"tags can only be forced",
),
(
"refs/heads/main:refs/tags/b-tag",
fetch::refs::update::Mode::RejectedTagUpdate,
None,
"otherwise a tag is always refusing itself to be overwritten (no-clobber)",
),
(
"+refs/remotes/origin/g:refs/heads/main",
fetch::refs::update::Mode::RejectedCurrentlyCheckedOut {
worktree_dirs: vec![repo.workdir().expect("present").to_owned()],
},
None,
"checked out branches cannot be written, as it requires a merge of sorts which isn't done here",
),
(
"ffffffffffffffffffffffffffffffffffffffff:refs/heads/invalid-source-object",
fetch::refs::update::Mode::RejectedSourceObjectNotFound {
id: hex_to_id("ffffffffffffffffffffffffffffffffffffffff"),
},
None,
"checked out branches cannot be written, as it requires a merge of sorts which isn't done here",
),
(
"refs/remotes/origin/g:refs/heads/not-currently-checked-out",
fetch::refs::update::Mode::FastForward,
Some("fast-forward (guessed in dry-run)"),
"a fast-forward only fast-forward situation, all good",
),
] {
let (mapping, specs) = mapping_from_spec(spec, &repo);
let out = fetch::refs::update(
&repo,
prefixed("action"),
&mapping,
&specs,
&[],
fetch::Tags::None,
reflog_message.map_or(fetch::DryRun::No, |_| fetch::DryRun::Yes),
fetch::WritePackedRefs::Never,
)
.unwrap();
assert_eq!(
out.updates,
vec![fetch::refs::Update {
type_change: None,
mode: expected_mode.clone(),
edit_index: reflog_message.map(|_| 0),
}],
"{spec:?}: {detail}"
);
assert_eq!(out.edits.len(), reflog_message.map_or(0, |_| 1));
if let Some(reflog_message) = reflog_message {
let edit = &out.edits[0];
match &edit.change {
Change::Update { log, new, .. } => {
assert_eq!(
log.message,
format!("action: {reflog_message}"),
"{spec}: reflog messages are specific and we emulate git word for word"
);
let remote_ref = repo
.find_reference(specs[0].to_ref().source().expect("always present"))
.unwrap();
assert_eq!(
new.id(),
remote_ref.target().id(),
"remote ref provides the id to set in the local reference"
);
}
_ => unreachable!("only updates"),
}
}
}
}
#[test]
fn checked_out_branches_in_worktrees_are_rejected_with_additional_information() -> Result {
let root = gix_path::realpath(gix_testtools::scripted_fixture_read_only_with_args_single_archive(
"make_fetch_repos.sh",
[base_repo_path()],
)?)?;
let repo = root.join("worktree-root");
let repo = gix::open_opts(repo, restricted())?;
for (branch, path_from_root) in [
("main", "worktree-root"),
("wt-a-nested", "prev/wt-a-nested"),
("wt-a", "wt-a"),
("nested-wt-b", "wt-a/nested-wt-b"),
("wt-c-locked", "wt-c-locked"),
("wt-deleted", "wt-deleted"),
] {
let spec = format!("refs/heads/main:refs/heads/{branch}");
let (mappings, specs) = mapping_from_spec(&spec, &repo);
let out = fetch::refs::update(
&repo,
prefixed("action"),
&mappings,
&specs,
&[],
fetch::Tags::None,
fetch::DryRun::Yes,
fetch::WritePackedRefs::Never,
)?;
assert_eq!(
out.updates,
vec![fetch::refs::Update {
mode: fetch::refs::update::Mode::RejectedCurrentlyCheckedOut {
worktree_dirs: vec![root.join(path_from_root)],
},
type_change: None,
edit_index: None,
}],
"{spec}: checked-out checks are done before checking if a change would actually be required (here it isn't)"
);
assert_eq!(out.edits.len(), 0);
}
Ok(())
}
#[test]
fn unborn_remote_branches_can_be_created_locally_if_they_are_new() -> Result {
let repo = named_repo("unborn");
let (mappings, specs) = mapping_from_spec("HEAD:refs/remotes/origin/HEAD", &repo);
assert_eq!(mappings.len(), 1);
let out = fetch::refs::update(
&repo,
prefixed("action"),
&mappings,
&specs,
&[],
fetch::Tags::None,
fetch::DryRun::Yes,
fetch::WritePackedRefs::Never,
)?;
assert_eq!(
out.updates,
vec![fetch::refs::Update {
mode: fetch::refs::update::Mode::New,
type_change: None,
edit_index: Some(0)
}]
);
assert_eq!(out.edits.len(), 1, "we are OK with creating unborn refs");
Ok(())
}
#[test]
fn unborn_remote_branches_can_update_local_unborn_branches() -> Result {
let repo = named_repo("unborn");
let (mappings, specs) = mapping_from_spec("HEAD:refs/heads/existing-unborn-symbolic", &repo);
assert_eq!(mappings.len(), 1);
let out = fetch::refs::update(
&repo,
prefixed("action"),
&mappings,
&specs,
&[],
fetch::Tags::None,
fetch::DryRun::Yes,
fetch::WritePackedRefs::Never,
)?;
assert_eq!(
out.updates,
vec![fetch::refs::Update {
mode: fetch::refs::update::Mode::NoChangeNeeded,
type_change: None,
edit_index: Some(0)
}]
);
assert_eq!(out.edits.len(), 1, "we are OK with updating unborn refs");
assert_eq!(
out.edits[0],
RefEdit {
change: Change::Update {
log: LogChange {
mode: RefLog::AndReference,
force_create_reflog: false,
message: "action: change unborn ref".into(),
},
expected: PreviousValue::MustExistAndMatch(Target::Symbolic(
"refs/heads/main".try_into().expect("valid"),
)),
new: Target::Symbolic("refs/heads/main".try_into().expect("valid")),
},
name: "refs/heads/existing-unborn-symbolic".try_into().expect("valid"),
deref: false,
}
);
let (mappings, specs) = mapping_from_spec("HEAD:refs/heads/existing-unborn-symbolic-other", &repo);
assert_eq!(mappings.len(), 1);
let out = fetch::refs::update(
&repo,
prefixed("action"),
&mappings,
&specs,
&[],
fetch::Tags::None,
fetch::DryRun::Yes,
fetch::WritePackedRefs::Never,
)?;
assert_eq!(
out.updates,
vec![fetch::refs::Update {
mode: fetch::refs::update::Mode::Forced,
type_change: None,
edit_index: Some(0)
}]
);
assert_eq!(
out.edits.len(),
1,
"we are OK with creating unborn refs even without actually forcing it"
);
assert_eq!(
out.edits[0],
RefEdit {
change: Change::Update {
log: LogChange {
mode: RefLog::AndReference,
force_create_reflog: false,
message: "action: change unborn ref".into(),
},
expected: PreviousValue::MustExistAndMatch(Target::Symbolic(
"refs/heads/other".try_into().expect("valid"),
)),
new: Target::Symbolic("refs/heads/main".try_into().expect("valid")),
},
name: "refs/heads/existing-unborn-symbolic-other".try_into().expect("valid"),
deref: false,
}
);
Ok(())
}
#[test]
fn remote_symbolic_refs_with_locally_unavailable_target_result_in_valid_peeled_branches() -> Result {
let remote_repo = named_repo("one-commit-with-symref");
let local_repo = named_repo("unborn");
let (mappings, specs) = mapping_from_spec("refs/heads/symbolic:refs/heads/new", &remote_repo);
assert_eq!(mappings.len(), 1);
let out = fetch::refs::update(
&local_repo,
prefixed("action"),
&mappings,
&specs,
&[],
fetch::Tags::None,
fetch::DryRun::Yes,
fetch::WritePackedRefs::Never,
)?;
assert_eq!(
out.updates,
vec![fetch::refs::Update {
mode: fetch::refs::update::Mode::New,
type_change: None,
edit_index: Some(0)
}]
);
assert_eq!(out.edits.len(), 1);
let target = Target::Object(hex_to_id("66f16e4e8baf5c77bb6d0484495bebea80e916ce"));
assert_eq!(
out.edits[0],
RefEdit {
change: Change::Update {
log: LogChange {
mode: RefLog::AndReference,
force_create_reflog: false,
message: "action: storing head".into(),
},
expected: PreviousValue::ExistingMustMatch(target.clone()),
new: target,
},
name: "refs/heads/new".try_into().expect("valid"),
deref: false,
},
"we create local-refs whose targets aren't present yet, even though the remote knows them.\
This leaves the caller with assuring all refs are mentioned in mappings."
);
Ok(())
}
#[test]
fn remote_symbolic_refs_with_locally_unavailable_target_dont_overwrite_valid_local_branches() -> Result {
let remote_repo = named_repo("one-commit-with-symref");
let local_repo = named_repo("one-commit-with-symref-missing-branch");
let (mappings, specs) = mapping_from_spec("refs/heads/unborn:refs/heads/valid-locally", &remote_repo);
assert_eq!(mappings.len(), 1);
let out = fetch::refs::update(
&local_repo,
prefixed("action"),
&mappings,
&specs,
&[],
fetch::Tags::None,
fetch::DryRun::Yes,
fetch::WritePackedRefs::Never,
)?;
assert_eq!(
out.updates,
vec![fetch::refs::Update {
mode: fetch::refs::update::Mode::RejectedToReplaceWithUnborn,
type_change: None,
edit_index: None
}]
);
assert_eq!(out.edits.len(), 0);
Ok(())
}
#[test]
fn unborn_remote_refs_dont_overwrite_valid_local_refs() -> Result {
let remote_repo = named_repo("unborn");
let local_repo = named_repo("one-commit-with-symref");
let (mappings, specs) =
mapping_from_spec("refs/heads/existing-unborn-symbolic:refs/heads/branch", &remote_repo);
assert_eq!(mappings.len(), 1);
let out = fetch::refs::update(
&local_repo,
prefixed("action"),
&mappings,
&specs,
&[],
fetch::Tags::None,
fetch::DryRun::Yes,
fetch::WritePackedRefs::Never,
)?;
assert_eq!(
out.updates,
vec![fetch::refs::Update {
mode: fetch::refs::update::Mode::RejectedToReplaceWithUnborn,
type_change: None,
edit_index: None
}],
"we don't overwrite locally present refs with unborn ones for safety"
);
assert_eq!(out.edits.len(), 0);
Ok(())
}
#[test]
fn local_symbolic_refs_can_be_overwritten() {
let repo = repo("two-origins");
for (source, destination, expected_update, expected_edit) in [
(
"refs/heads/symbolic",
"HEAD",
fetch::refs::Update {
mode: fetch::refs::update::Mode::New,
type_change: None,
edit_index: Some(0),
},
Some(RefEdit {
change: Change::Update {
log: LogChange {
mode: RefLog::AndReference,
force_create_reflog: false,
message: "action: storing head".into(),
},
expected: PreviousValue::ExistingMustMatch(Target::Symbolic(
"refs/heads/main".try_into().expect("valid"),
)),
new: Target::Symbolic("refs/heads/main".try_into().expect("valid")),
},
name: "refs/heads/HEAD".try_into().expect("valid"),
deref: false,
}),
),
(
"refs/remotes/origin/b", "refs/heads/main",
fetch::refs::Update {
mode: fetch::refs::update::Mode::RejectedCurrentlyCheckedOut {
worktree_dirs: vec![repo.workdir().expect("present").to_owned()],
},
type_change: None,
edit_index: None,
},
None,
),
(
"refs/heads/main",
"refs/heads/symbolic",
fetch::refs::Update {
mode: fetch::refs::update::Mode::NoChangeNeeded,
type_change: Some(TypeChange::SymbolicToDirect),
edit_index: Some(0),
},
Some(RefEdit {
change: Change::Update {
log: LogChange {
mode: RefLog::AndReference,
force_create_reflog: false,
message: "action: no update will be performed".into(),
},
expected: PreviousValue::MustExistAndMatch(Target::Symbolic(
"refs/heads/main".try_into().expect("valid"),
)),
new: Target::Object(hex_to_id("f99771fe6a1b535783af3163eba95a927aae21d5")),
},
name: "refs/heads/symbolic".try_into().expect("valid"),
deref: false,
}),
),
(
"refs/heads/symbolic",
"refs/remotes/origin/a",
fetch::refs::Update {
mode: fetch::refs::update::Mode::NoChangeNeeded,
type_change: Some(TypeChange::DirectToSymbolic),
edit_index: Some(0),
},
Some(RefEdit {
change: Change::Update {
log: LogChange {
mode: RefLog::AndReference,
force_create_reflog: false,
message: "action: no update will be performed".into(),
},
expected: PreviousValue::MustExistAndMatch(Target::Object(hex_to_id(
"f99771fe6a1b535783af3163eba95a927aae21d5",
))),
new: Target::Symbolic("refs/heads/main".try_into().expect("valid")),
},
name: "refs/remotes/origin/a".try_into().expect("valid"),
deref: false,
}),
),
(
"refs/heads/symbolic",
"refs/heads/symbolic",
fetch::refs::Update {
mode: fetch::refs::update::Mode::NoChangeNeeded,
type_change: None,
edit_index: Some(0),
},
Some(RefEdit {
change: Change::Update {
log: LogChange {
mode: RefLog::AndReference,
force_create_reflog: false,
message: "action: no update will be performed".into(),
},
expected: PreviousValue::MustExistAndMatch(Target::Symbolic(
"refs/heads/main".try_into().expect("valid"),
)),
new: Target::Symbolic("refs/heads/main".try_into().expect("valid")),
},
name: "refs/heads/symbolic".try_into().expect("valid"),
deref: false,
}),
),
] {
let (mappings, specs) = mapping_from_spec(&format!("{source}:{destination}"), &repo);
assert_eq!(mappings.len(), 1);
let out = fetch::refs::update(
&repo,
prefixed("action"),
&mappings,
&specs,
&[],
fetch::Tags::None,
fetch::DryRun::Yes,
fetch::WritePackedRefs::Never,
)
.unwrap();
assert_eq!(out.edits.len(), usize::from(expected_edit.is_some()));
assert_eq!(out.updates, vec![expected_update]);
if let Some(expected) = expected_edit {
assert_eq!(out.edits, vec![expected]);
}
}
}
#[test]
fn remote_symbolic_refs_can_always_be_set_as_there_is_no_scenario_where_it_could_be_nonexisting_and_rejected() {
let repo = repo("two-origins");
let (mut mappings, specs) = mapping_from_spec("refs/heads/symbolic:refs/remotes/origin/new", &repo);
mappings.push(Mapping {
remote: Source::Ref(gix_protocol::handshake::Ref::Direct {
full_ref_name: "refs/heads/main".into(),
object: hex_to_id("f99771fe6a1b535783af3163eba95a927aae21d5"),
}),
local: Some("refs/heads/symbolic".into()),
spec_index: SpecIndex::ExplicitInRemote(0),
});
let out = fetch::refs::update(
&repo,
prefixed("action"),
&mappings,
&specs,
&[],
fetch::Tags::None,
fetch::DryRun::Yes,
fetch::WritePackedRefs::Never,
)
.unwrap();
assert_eq!(out.edits.len(), 2, "symbolic refs are handled just like any other ref");
assert_eq!(
out.updates,
vec![
fetch::refs::Update {
mode: fetch::refs::update::Mode::New,
type_change: None,
edit_index: Some(0)
},
fetch::refs::Update {
mode: fetch::refs::update::Mode::NoChangeNeeded,
type_change: Some(TypeChange::SymbolicToDirect),
edit_index: Some(1)
}
],
);
let edit = &out.edits[0];
match &edit.change {
Change::Update { log, new, .. } => {
assert_eq!(log.message, "action: storing ref");
assert!(
new.try_name().is_some(),
"remote falls back to peeled id as it's the only thing we seem to have locally, it won't refer to a non-existing local ref"
);
}
_ => unreachable!("only updates"),
}
}
#[test]
fn local_direct_refs_are_written_with_symbolic_ones() {
let repo = repo("two-origins");
let (mappings, specs) = mapping_from_spec("refs/heads/symbolic:refs/heads/not-currently-checked-out", &repo);
let out = fetch::refs::update(
&repo,
prefixed("action"),
&mappings,
&specs,
&[],
fetch::Tags::None,
fetch::DryRun::Yes,
fetch::WritePackedRefs::Never,
)
.unwrap();
assert_eq!(out.edits.len(), 1);
assert_eq!(
out.updates,
vec![fetch::refs::Update {
mode: fetch::refs::update::Mode::NoChangeNeeded,
type_change: Some(fetch::refs::update::TypeChange::DirectToSymbolic),
edit_index: Some(0)
}],
);
}
#[test]
fn remote_refs_cannot_map_to_local_head() {
let repo = repo("two-origins");
let (mappings, specs) = mapping_from_spec("refs/heads/main:HEAD", &repo);
let out = fetch::refs::update(
&repo,
prefixed("action"),
&mappings,
&specs,
&[],
fetch::Tags::None,
fetch::DryRun::Yes,
fetch::WritePackedRefs::Never,
)
.unwrap();
assert_eq!(out.edits.len(), 1);
assert_eq!(
out.updates,
vec![fetch::refs::Update {
mode: fetch::refs::update::Mode::New,
type_change: None,
edit_index: Some(0),
}],
);
let edit = &out.edits[0];
match &edit.change {
Change::Update { log, new, .. } => {
assert_eq!(log.message, "action: storing head");
assert!(
new.try_id().is_some(),
"remote is peeled, so local will be peeled as well"
);
}
_ => unreachable!("only updates"),
}
assert_eq!(
edit.name.as_bstr(),
"refs/heads/HEAD",
"it's not possible to refer to the local HEAD with refspecs"
);
}
#[test]
fn remote_symbolic_refs_can_be_written_locally_and_point_to_tracking_branch() {
let repo = repo("two-origins");
let (mut mappings, specs) = mapping_from_spec("HEAD:refs/remotes/origin/new-HEAD", &repo);
mappings.push(Mapping {
remote: Source::Ref(gix_protocol::handshake::Ref::Direct {
full_ref_name: "refs/heads/main".into(),
object: hex_to_id("f99771fe6a1b535783af3163eba95a927aae21d5"),
}),
local: Some("refs/remotes/origin/main".into()),
spec_index: SpecIndex::ExplicitInRemote(0),
});
let out = fetch::refs::update(
&repo,
prefixed("action"),
&mappings,
&specs,
&[],
fetch::Tags::None,
fetch::DryRun::Yes,
fetch::WritePackedRefs::Never,
)
.unwrap();
assert_eq!(
out.updates,
vec![
fetch::refs::Update {
mode: fetch::refs::update::Mode::New,
type_change: None,
edit_index: Some(0),
},
fetch::refs::Update {
mode: fetch::refs::update::Mode::NoChangeNeeded,
type_change: None,
edit_index: Some(1),
}
],
);
assert_eq!(out.edits.len(), 2);
let edit = &out.edits[0];
match &edit.change {
Change::Update { log, new, .. } => {
assert_eq!(log.message, "action: storing ref");
assert_eq!(
new.try_name().expect("symbolic ref").as_bstr(),
"refs/remotes/origin/main",
"remote is symbolic, so local will be symbolic as well, but is rewritten to tracking branch"
);
}
_ => unreachable!("only updates"),
}
assert_eq!(edit.name.as_bstr(), "refs/remotes/origin/new-HEAD");
}
#[test]
fn non_fast_forward_is_rejected_but_appears_to_be_fast_forward_in_dryrun_mode() {
let repo = repo("two-origins");
let (mappings, specs) = mapping_from_spec("refs/heads/main:refs/remotes/origin/g", &repo);
let reflog_message: BString = "very special".into();
let out = fetch::refs::update(
&repo,
RefLogMessage::Override {
message: reflog_message.clone(),
},
&mappings,
&specs,
&[],
fetch::Tags::None,
fetch::DryRun::Yes,
fetch::WritePackedRefs::Never,
)
.unwrap();
assert_eq!(
out.updates,
vec![fetch::refs::Update {
mode: fetch::refs::update::Mode::FastForward,
type_change: None,
edit_index: Some(0),
}],
"The caller has to be aware and note that dry-runs can't know about fast-forwards as they don't have remote objects"
);
assert_eq!(out.edits.len(), 1);
let edit = &out.edits[0];
match &edit.change {
Change::Update { log, .. } => {
assert_eq!(log.message, reflog_message);
}
_ => unreachable!("only updates"),
}
}
#[test]
fn non_fast_forward_is_rejected_if_dry_run_is_disabled() {
let (repo, _tmp) = repo_rw("two-origins");
let (mappings, specs) = mapping_from_spec("refs/remotes/origin/g:refs/heads/not-currently-checked-out", &repo);
let out = fetch::refs::update(
&repo,
prefixed("action"),
&mappings,
&specs,
&[],
fetch::Tags::None,
fetch::DryRun::No,
fetch::WritePackedRefs::Never,
)
.unwrap();
assert_eq!(
out.updates,
vec![fetch::refs::Update {
mode: fetch::refs::update::Mode::RejectedNonFastForward,
type_change: None,
edit_index: None,
}]
);
assert_eq!(out.edits.len(), 0);
let (mappings, specs) = mapping_from_spec("refs/heads/main:refs/remotes/origin/g", &repo);
let out = fetch::refs::update(
&repo,
prefixed("prefix"),
&mappings,
&specs,
&[],
fetch::Tags::None,
fetch::DryRun::No,
fetch::WritePackedRefs::Never,
)
.unwrap();
assert_eq!(
out.updates,
vec![fetch::refs::Update {
mode: fetch::refs::update::Mode::FastForward,
type_change: None,
edit_index: Some(0),
}]
);
assert_eq!(out.edits.len(), 1);
let edit = &out.edits[0];
match &edit.change {
Change::Update { log, .. } => {
assert_eq!(log.message, format!("prefix: {}", "fast-forward"));
}
_ => unreachable!("only updates"),
}
}
#[test]
fn fast_forwards_are_called_out_even_if_force_is_given() {
let (repo, _tmp) = repo_rw("two-origins");
let (mappings, specs) = mapping_from_spec("+refs/heads/main:refs/remotes/origin/g", &repo);
let out = fetch::refs::update(
&repo,
prefixed("prefix"),
&mappings,
&specs,
&[],
fetch::Tags::None,
fetch::DryRun::No,
fetch::WritePackedRefs::Never,
)
.unwrap();
assert_eq!(
out.updates,
vec![fetch::refs::Update {
mode: fetch::refs::update::Mode::FastForward,
type_change: None,
edit_index: Some(0),
}]
);
assert_eq!(out.edits.len(), 1);
let edit = &out.edits[0];
match &edit.change {
Change::Update { log, .. } => {
assert_eq!(log.message, format!("prefix: {}", "fast-forward"));
}
_ => unreachable!("only updates"),
}
}
fn mapping_from_spec(
spec: &str,
remote_repo: &gix::Repository,
) -> (Vec<fetch::refmap::Mapping>, Vec<gix::refspec::RefSpec>) {
let spec = gix_refspec::parse(spec.into(), gix_refspec::parse::Operation::Fetch).unwrap();
let group = gix_refspec::MatchGroup::from_fetch_specs(Some(spec));
let references = remote_repo.references().unwrap();
let mut references: Vec<_> = references.all().unwrap().map(|r| into_remote_ref(r.unwrap())).collect();
references.push(into_remote_ref(remote_repo.find_reference("HEAD").unwrap()));
let mappings = group
.match_lhs(references.iter().map(remote_ref_to_item))
.mappings
.into_iter()
.map(|m| fetch::refmap::Mapping {
remote: m.item_index.map_or_else(
|| match m.lhs {
gix_refspec::match_group::SourceRef::ObjectId(id) => fetch::refmap::Source::ObjectId(id),
_ => unreachable!("not a ref, must be id: {:?}", m),
},
|idx| fetch::refmap::Source::Ref(references[idx].clone()),
),
local: m.rhs.map(std::borrow::Cow::into_owned),
spec_index: SpecIndex::ExplicitInRemote(m.spec_index),
})
.collect();
(mappings, vec![spec.to_owned()])
}
fn into_remote_ref(mut r: gix::Reference<'_>) -> gix_protocol::handshake::Ref {
let full_ref_name = r.name().as_bstr().into();
match r.target() {
TargetRef::Object(id) => gix_protocol::handshake::Ref::Direct {
full_ref_name,
object: id.into(),
},
TargetRef::Symbolic(name) => {
let target = name.as_bstr().into();
match r.peel_to_id() {
Ok(id) => gix_protocol::handshake::Ref::Symbolic {
full_ref_name,
target,
tag: None,
object: id.detach(),
},
Err(_) => gix_protocol::handshake::Ref::Unborn { full_ref_name, target },
}
}
}
}
fn remote_ref_to_item(r: &gix_protocol::handshake::Ref) -> gix_refspec::match_group::Item<'_> {
let (full_ref_name, target, object) = r.unpack();
static NULL: gix_hash::ObjectId = gix_hash::Kind::Sha1.null();
gix_refspec::match_group::Item {
full_ref_name,
target: target.unwrap_or(NULL.as_ref()),
object,
}
}
fn prefixed(action: &str) -> RefLogMessage {
RefLogMessage::Prefixed { action: action.into() }
}
}