gitg/libgitg/gitg-commit-model.vala
Alberto Fanjul 1be2990fea Fix time sort mode
Fix topological/time sort mode
Save miss commits on same second until its parents are painted
2019-05-05 12:11:50 +02:00

794 lines
14 KiB
Vala

/*
* This file is part of gitg
*
* Copyright (C) 2012 - Jesse van den Kieboom
*
* gitg is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* gitg is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with gitg. If not, see <http://www.gnu.org/licenses/>.
*/
namespace Gitg
{
public enum CommitModelColumns
{
SHA1,
SUBJECT,
MESSAGE,
AUTHOR,
AUTHOR_NAME,
AUTHOR_EMAIL,
AUTHOR_DATE,
COMMITTER,
COMMITTER_NAME,
COMMITTER_EMAIL,
COMMITTER_DATE,
COMMIT,
NUM;
public Type type()
{
switch (this)
{
case SHA1:
case SUBJECT:
case MESSAGE:
case COMMITTER:
case COMMITTER_NAME:
case COMMITTER_EMAIL:
case COMMITTER_DATE:
case AUTHOR:
case AUTHOR_NAME:
case AUTHOR_EMAIL:
case AUTHOR_DATE:
return typeof(string);
case COMMIT:
return typeof(Commit);
default:
break;
}
return Type.INVALID;
}
}
public class CommitModel : Object, Gtk.TreeModel
{
private Repository d_repository;
private Cancellable? d_cancellable;
private Commit[] d_ids;
private Commit[] d_hidden_ids;
private Thread<void*>? d_thread;
private Ggit.RevisionWalker? d_walker;
private uint d_advertized_size;
private uint d_idleid;
private Lanes d_lanes;
private Ggit.SortMode d_sortmode;
private Gee.HashMap<Ggit.OId, int> d_id_hash;
private Ggit.OId[] d_include;
private Ggit.OId[] d_exclude;
private uint d_size;
private int d_stamp;
public uint limit { get; set; }
public Ggit.SortMode sort_mode
{
get { return d_sortmode; }
set
{
if (d_sortmode != value)
{
d_sortmode = value;
reload();
}
}
}
public Repository repository
{
get { return d_repository; }
set
{
if (d_repository == value)
{
return;
}
cancel();
d_walker = null;
d_repository = value;
}
}
private Ggit.OId[] _permanent_lanes;
public Ggit.OId[] get_permanent_lanes() {
return _permanent_lanes;
}
public void set_permanent_lanes(Ggit.OId[] value) {
_permanent_lanes = value;
}
public signal void started();
public signal void update(uint added);
public signal void finished();
public signal void begin_clear();
public signal void end_clear();
public CommitModel(Repository? repository)
{
Object(repository: repository);
}
construct
{
d_lanes = new Lanes();
d_sortmode = Ggit.SortMode.TOPOLOGICAL | Ggit.SortMode.TIME;
}
public override void dispose()
{
cancel();
}
private void cancel()
{
if (d_cancellable != null)
{
var cancellable = d_cancellable;
d_cancellable = null;
cancellable.cancel();
d_thread.join();
d_thread = null;
}
lock(d_idleid)
{
if (d_idleid != 0)
{
Source.remove(d_idleid);
d_idleid = 0;
}
}
clear();
d_ids = new Commit[0];
d_hidden_ids = new Commit[0];
d_advertized_size = 0;
d_id_hash = new Gee.HashMap<Ggit.OId, int>();
}
public void reload()
{
cancel();
if (d_repository == null || get_include().length == 0)
{
return;
}
var cancellable = new Cancellable();
d_cancellable = cancellable;
started();
walk.begin(cancellable, (obj, res) => {
walk.end(res);
d_thread.join();
d_thread = null;
finished();
d_cancellable = null;
});
}
public uint size()
{
return d_advertized_size;
}
public new Commit? @get(uint idx)
{
Commit? ret;
if (idx >= d_advertized_size)
{
return null;
}
lock(d_ids)
{
ret = d_ids[idx];
}
return ret;
}
public void set_include(Ggit.OId[] ids)
{
this.d_include = ids;
}
public Ggit.OId[] get_include()
{
return this.d_include;
}
public void set_exclude(Ggit.OId[] ids)
{
this.d_exclude = ids;
}
private void notify_batch(owned SourceFunc? finishedcb)
{
lock(d_idleid)
{
if (d_idleid != 0)
{
Source.remove(d_idleid);
d_idleid = 0;
}
uint newsize = d_ids.length;
d_idleid = Idle.add(() => {
lock(d_idleid)
{
if (d_idleid == 0)
{
return false;
}
d_idleid = 0;
uint added = newsize - d_advertized_size;
d_advertized_size = newsize;
emit_update(added);
if (finishedcb != null)
{
finishedcb();
}
}
return false;
});
}
}
private bool needs_resize(Gitg.Commit[] ids, ref uint size)
{
if (ids.length < size)
{
return false;
}
if (ids.length < 20000)
{
size *= 2;
}
else
{
size = (uint)((double)size * 1.2);
}
return true;
}
private async void walk(Cancellable cancellable)
{
Ggit.OId[] included = d_include;
Ggit.OId[] excluded = d_exclude;
uint limit = this.limit;
SourceFunc cb = walk.callback;
// First time, wait a bit longer to make loading small repositories
// subjectively quicker
var wait_elapsed_initial = 1.0;
// After initial wait elapsed, continue with incremental updates at
// a quicker pace
var wait_elapsed_incremental = 0.2;
var wait_elapsed = wait_elapsed_initial;
var permlanes = get_permanent_lanes();
ThreadFunc<void*> run = () => {
if (d_walker == null)
{
try
{
d_walker = new Ggit.RevisionWalker(d_repository);
}
catch
{
notify_batch((owned)cb);
return null;
}
}
d_walker.reset();
d_walker.set_sort_mode(d_sortmode);
var incset = new Gee.HashSet<Ggit.OId>((Gee.HashDataFunc<Ggit.OId>)Ggit.OId.hash,
(Gee.EqualDataFunc<Ggit.OId>)Ggit.OId.equal);
foreach (Ggit.OId oid in included)
{
try
{
d_walker.push(oid);
incset.add(oid);
} catch {};
}
foreach (Ggit.OId oid in excluded)
{
try
{
d_walker.hide(oid);
incset.remove(oid);
} catch {};
}
var permanent = new Ggit.OId[0];
foreach (Ggit.OId oid in permlanes)
{
try
{
d_walker.push(oid);
permanent += oid;
} catch {}
}
d_lanes.reset(permanent, incset);
uint size;
uint hidden_size;
// Pre-allocate array to store commits
lock(d_ids)
{
d_ids = new Commit[1000];
d_hidden_ids = new Commit[100];
size = d_ids.length;
hidden_size = d_hidden_ids.length;
d_ids.length = 0;
d_hidden_ids.length = 0;
d_advertized_size = 0;
}
Timer timer = new Timer();
lock(d_id_hash)
{
d_id_hash = new Gee.HashMap<Ggit.OId, int>((i) => { return i.hash(); }, (a, b) => { return a.equal(b); });
}
while (true)
{
Ggit.OId? id;
Commit? commit;
if (cancellable.is_cancelled())
{
return null;
}
try
{
id = d_walker.next();
if (id == null)
{
break;
}
commit = d_repository.lookup<Commit>(id);
} catch { break; }
int mylane;
SList<Lane> lanes;
bool finded = d_lanes.next(commit, out lanes, out mylane, true);
if (finded)
{
debug ("finded parent for %s %s\n", commit.get_subject(), commit.get_id().to_string());
commit.update_lanes((owned)lanes, mylane);
lock(d_id_hash)
{
d_id_hash.set(id, d_ids.length);
}
if (needs_resize(d_ids, ref size))
{
var l = d_ids.length;
lock(d_ids)
{
d_ids.resize((int)size);
d_ids.length = l;
}
}
d_ids[d_ids.length++] = commit;
}
while (d_lanes.miss_commits.size > 0)
{
finded = false;
var iter = d_lanes.miss_commits.iterator();
while (iter.next())
{
var miss_commit = iter.get();
debug ("trying again %s %s", miss_commit.get_subject(), miss_commit.get_id().to_string());
bool tmp_finded = d_lanes.next(miss_commit, out lanes, out mylane);
if (tmp_finded)
{
finded = true;
debug ("finded parent for miss %s %s\n", miss_commit.get_subject(), miss_commit.get_id().to_string());
iter.remove();
commit = miss_commit;
commit.update_lanes((owned)lanes, mylane);
lock(d_id_hash)
{
d_id_hash.set(id, d_ids.length);
}
if (needs_resize(d_ids, ref size))
{
var l = d_ids.length;
lock(d_ids)
{
d_ids.resize((int)size);
d_ids.length = l;
}
}
d_ids[d_ids.length++] = commit;
}
}
if (!finded)
break;
}
if (!finded)
{
if (needs_resize(d_hidden_ids, ref hidden_size))
{
var l = d_hidden_ids.length;
d_hidden_ids.resize((int)hidden_size);
d_hidden_ids.length = l;
}
d_hidden_ids[d_hidden_ids.length++] = commit;
}
if (timer.elapsed() >= wait_elapsed)
{
notify_batch(null);
timer.start();
wait_elapsed = wait_elapsed_incremental;
}
if (limit > 0 && d_ids.length == limit)
{
break;
}
}
notify_batch((owned)cb);
return null;
};
try
{
d_thread = new Thread<void*>.try("gitg-history-walk", (owned)run);
}
catch
{
d_thread = null;
return;
}
yield;
}
private void clear()
{
begin_clear();
// Remove all
var path = new Gtk.TreePath.from_indices(d_size);
while (d_size > 0)
{
path.prev();
--d_size;
row_deleted(path.copy());
}
++d_stamp;
end_clear();
}
private void emit_update(uint added)
{
var path = new Gtk.TreePath.from_indices(d_size);
Gtk.TreeIter iter = Gtk.TreeIter();
iter.stamp = d_stamp;
for (uint i = 0; i < added; ++i)
{
iter.user_data = (void *)(ulong)d_size;
++d_size;
row_inserted(path.copy(), iter);
path.next();
}
update(added);
}
public Type get_column_type(int index)
{
return ((CommitModelColumns)index).type();
}
public Gtk.TreeModelFlags get_flags()
{
return Gtk.TreeModelFlags.LIST_ONLY |
Gtk.TreeModelFlags.ITERS_PERSIST;
}
public bool get_iter(out Gtk.TreeIter iter, Gtk.TreePath path)
{
iter = {};
int[] indices = path.get_indices();
if (indices.length != 1)
{
return false;
}
uint index = (uint)indices[0];
if (index >= d_size)
{
return false;
}
iter.user_data = (void *)(ulong)index;
iter.stamp = d_stamp;
return true;
}
public int get_n_columns()
{
return CommitModelColumns.NUM;
}
public Gtk.TreePath? get_path(Gtk.TreeIter iter)
{
uint id = (uint)(ulong)iter.user_data;
return_val_if_fail(iter.stamp == d_stamp, null);
return new Gtk.TreePath.from_indices((int)id);
}
public void get_value(Gtk.TreeIter iter, int column, out Value val)
{
val = {};
return_if_fail(iter.stamp == d_stamp);
uint idx = (uint)(ulong)iter.user_data;
Commit? commit = this[idx];
val.init(get_column_type(column));
if (commit == null)
{
return;
}
switch (column)
{
case CommitModelColumns.SHA1:
val.set_string(commit.get_id().to_string());
break;
case CommitModelColumns.SUBJECT:
val.set_string(commit.get_subject());
break;
case CommitModelColumns.MESSAGE:
val.set_string(commit.get_message());
break;
case CommitModelColumns.COMMITTER:
val.set_string("%s <%s>".printf(commit.get_committer().get_name(),
commit.get_committer().get_email()));
break;
case CommitModelColumns.COMMITTER_NAME:
val.set_string(commit.get_committer().get_name());
break;
case CommitModelColumns.COMMITTER_EMAIL:
val.set_string(commit.get_committer().get_email());
break;
case CommitModelColumns.COMMITTER_DATE:
val.set_string(commit.committer_date_for_display);
break;
case CommitModelColumns.AUTHOR:
val.set_string("%s <%s>".printf(commit.get_author().get_name(),
commit.get_author().get_email()));
break;
case CommitModelColumns.AUTHOR_NAME:
val.set_string(commit.get_author().get_name());
break;
case CommitModelColumns.AUTHOR_EMAIL:
val.set_string(commit.get_author().get_email());
break;
case CommitModelColumns.AUTHOR_DATE:
val.set_string(commit.author_date_for_display);
break;
case CommitModelColumns.COMMIT:
val.set_object(commit);
break;
}
}
public Commit? commit_from_iter(Gtk.TreeIter iter)
{
return_val_if_fail(iter.stamp == d_stamp, null);
uint idx = (uint)(ulong)iter.user_data;
return this[idx];
}
public Gtk.TreePath? path_from_commit(Commit commit)
{
lock(d_id_hash)
{
var id = commit.get_id();
if (!d_id_hash.has_key(id))
{
return null;
}
return new Gtk.TreePath.from_indices(d_id_hash.get(commit.get_id()));
}
}
public Commit? commit_from_path(Gtk.TreePath path)
{
int[] indices = path.get_indices();
if (indices.length != 1)
{
return null;
}
return this[(uint)indices[0]];
}
public bool iter_children(out Gtk.TreeIter iter, Gtk.TreeIter? parent)
{
iter = {};
if (parent == null)
{
iter.user_data = (void *)(ulong)0;
iter.stamp = d_stamp;
return true;
}
else
{
return_val_if_fail(parent.stamp == d_stamp, false);
return false;
}
}
public bool iter_has_child(Gtk.TreeIter iter)
{
return false;
}
public int iter_n_children(Gtk.TreeIter? iter)
{
if (iter == null)
{
return (int)d_size;
}
else
{
return_val_if_fail(iter.stamp == d_stamp, 0);
return 0;
}
}
public bool iter_next(ref Gtk.TreeIter iter)
{
return_val_if_fail(iter.stamp == d_stamp, false);
uint index = (uint)(ulong)iter.user_data;
++index;
if (index >= d_size)
{
return false;
}
else
{
iter.user_data = (void *)(ulong)index;
return true;
}
}
public bool iter_nth_child(out Gtk.TreeIter iter, Gtk.TreeIter? parent, int n)
{
iter = {};
if (parent != null || (uint)n >= d_size)
{
return false;
}
iter.user_data = (void *)(ulong)n;
iter.stamp = d_stamp;
return true;
}
public bool iter_parent(out Gtk.TreeIter parent, Gtk.TreeIter iter)
{
parent = {};
return_val_if_fail(iter.stamp == d_stamp, false);
return false;
}
}
}
// ex:ts=4 noet