Git.vala
[gitlive] / Git.vala
1
2 // valac -o /tmp/ggit Git.vala --pkg libgit2-glib-1.0 --pkg libsoup-2.4 --pkg gee-0.8 -g
3  
4
5 void main()
6 {
7          GLib.Log.set_handler(null, 
8             GLib.LogLevelFlags.LEVEL_DEBUG | GLib.LogLevelFlags.LEVEL_WARNING | GLib.LogLevelFlags.LEVEL_INFO, 
9             (dom, lvl, msg) => {
10                                         
11                                         
12                // should we debug..
13                                         
14                         
15                print("%s\n", msg);
16             }
17          ); 
18
19         
20         Ggit.init();
21         var a = new GitLive.Repo("/home/alan/gitlive/web.Texon");
22         a.fetchAll();
23         return;
24         /*
25         GLib.Timeout.add (1, () => {
26       GLib.debug("Meanwhile");
27       return true;
28     }, GLib.Priority.HIGH);
29         
30         var loop = new MainLoop();
31          
32         var a = new GitLive.Repo("/home/alan/gitlive/web.coba");
33       GLib.debug("Starting");   
34         a.loadRemoteHeads.begin(true, (obj,res) => {
35                 a.loadRemoteHeads.end(res);
36                  GLib.debug("got results");
37                 a.loadLocalBranches();
38                 loop.quit();
39         });
40         loop.run();
41         //a.mergeMasterIntoHead();
42         //a.walkDiff();
43         //return;
44         //a.is_managed();
45         //a.is_autocommit();
46         
47
48         //a.fetchAll();
49         //
50         /*
51         var a = new GitLive.Repo("/home/alan/git/test1-clone");
52         //a.fetchAll();
53         var str = (new GLib.DateTime.now_utc()).format("%Y-%m-%d %H:%M:%S");
54         GLib.FileUtils.set_contents("/home/alan/git/test1-clone/test1",  str); 
55         
56         var ix = a.repo.get_index();
57         ix.add_path("test1");
58         ix.write();
59         var treeoid = ix.write_tree();
60
61         var head = a.repo.get_head();
62         var parent = head.lookup() as Ggit.Commit;
63         Ggit.Commit[] parents = (parent == null) ? 
64                 new Ggit.Commit[] {} :
65                 new Ggit.Commit[] { parent };
66
67         var tree = a.repo.lookup(treeoid,typeof (Ggit.Tree))  as   Ggit.Tree;// odd format.. 
68         
69         var sig = new Ggit.Signature.now("Alan Knowles", "alan@roojs.com");
70         a.repo.create_commit("HEAD", sig, sig, null, "test commit " + str, tree, parents);
71         */
72         // mmh.. no git add/commit in library...
73 //      string[] spawn_args = {"git", "commit", "-m", "test", "-a"};
74         //string[] spawn_env = Environ.get ();
75 //      Process.spawn_sync ("/home/alan/git/test1-clone", spawn_args, spawn_env, SpawnFlags.SEARCH_PATH, null);
76  
77         //a.pushAll();
78 }
79  
80
81 namespace  GitLive {
82
83         public class Repo : Object {
84
85                 string name = "";
86                 public Ggit.Repository  repo;
87                 Callbacks callbacks;
88
89                 public Repo(string path)
90                 {
91                         this.name = GLib.Path.get_basename(path);
92                         this.repo = Ggit.Repository.open(GLib.File.new_for_path(path));
93                         this.callbacks = new Callbacks(this);
94                 
95                 }
96                 Ggit.Branch                                             head = null;
97             Gee.ArrayList<Ggit.Branch>          branches = null;
98             Ggit.RemoteHead[]                           remote_heads = null;
99                 public void loadLocalBranches(bool force = false)
100                 {
101                         if (!force && this.branches != null) {
102                                 return;
103                         }
104                         
105                         this.branches =  new Gee.ArrayList<Ggit.Branch>();
106                         var r = this.repo.enumerate_branches(Ggit.BranchType.LOCAL);
107                         while (r.next()) {
108                                 var br = r.get() as Ggit.Branch;
109                                 if (br == null) {
110                                         continue;
111                                 }
112                                 if (br.is_tag()) {
113                                         continue;
114                                 }
115                                 
116                                 //var head = this.repo.revparse("refs/heads/" + br.get_name() ).get_id();
117                                 //var rhead = this.repo.revparse(br.get_upstream().get_name() ).get_id();
118                                 try {
119                                         GLib.debug("got branch: N=%s", br.get_name() );
120                                         GLib.debug("is_head %s", br.is_head() ? "Y" : "n");
121
122                                         GLib.debug("upstream = %s", br.get_upstream() == null ? "??" : br.get_upstream().get_name().substring(20));
123                                         GLib.debug("oid = %s",br.get_target().to_string());
124                                         this.branches.add(br);
125                                         if (br.is_head()) {
126                                                 GLib.debug("HEAD= %s", br.get_name());
127                                                 this.head = br;
128                                         }
129                                 } catch (Error e) {
130                                         GLib.debug("Skip branch");
131                                 }
132                         }
133                         
134                         
135                 }
136                  
137                 public bool is_managed()
138                 {
139                         GLib.debug("is_managed: %d", this.repo.get_config().get_int32("gitlive.managed"));
140                         return this.repo.get_config().get_int32("gitlive.managed") == 1;
141                 }
142                 
143                 
144                 public bool is_autocommit ()
145                 {       
146                         GLib.debug("is_autocommit: %d", this.repo.get_config().get_int32("gitlive.autocommit"));
147                         return this.repo.get_config().get_int32("gitlive.autocommit") == 1;
148                 }
149                 public void set_autocommit(bool val)
150                 {
151                         this.repo.get_config().set_int32("gitlive.autocommit", val ? 1 : 0);
152                 
153                 }
154                  
155                 public void walkDiff()
156                 {
157                         this.loadLocalBranches();
158                         
159                         
160                         
161                         var oid =  this.repo.revparse(this.head.get_name() ).get_id()  ;
162                         var moid =  this.repo.revparse("refs/heads/master" ).get_id()  ;
163                         
164                         var a = new Ggit.RevisionWalker(this.repo);
165                         a.set_sort_mode(Ggit.SortMode.TOPOLOGICAL);
166                         a.push(oid);
167                         a.hide(moid);
168                         var last = oid;
169                         for (var noid = a.next(); noid != null; noid= a.next()) {
170                                 //var commit = this.repo.lookup(noid, typeof(Ggit.Commit)) as Ggit.Commit;
171                                 GLib.debug("rev: %s",
172                                         noid.to_string()
173                                 );
174                                 last = noid;
175                         }
176                         var commit = this.repo.lookup(last, typeof(Ggit.Commit)) as Ggit.Commit;
177                         var parent = commit.get_parents();
178                         GLib.debug("parent = %s", parent.get_id(0).to_string());
179                         var master_rev =  parent.get_id(0);
180                         var master_commit  = this.repo.lookup_commit(master_rev);;
181                         
182                         var head_commit = this.repo.lookup_commit(oid);
183                         
184                         var master_tree = master_commit.get_tree();
185                         var head_tree = head_commit.get_tree();
186                         
187                         var diff = new Ggit.Diff.tree_to_tree(this.repo, master_tree, head_tree, new Ggit.DiffOptions());
188                         
189                         diff.print(Ggit.DiffFormatType.PATCH, ( delta,  hunk,  line) => {
190                                 GLib.debug("%d: %s, %s", line.get_new_lineno(), line.get_origin().to_string(), line.get_text());
191                                 return 0;
192                         });
193                         // let's try a merge..
194                         var mo = new Ggit.MergeOptions();
195                         mo.set_file_favor(Ggit.MergeFileFavor.THEIRS);
196                         var ix = this.repo.merge_trees(master_tree, master_tree, head_tree, mo);
197                         
198                         if (ix.has_conflicts()) {
199                                 GLib.debug("merge has conflicts");
200                                 return;
201                         }
202                          var treeoid = ix.write_tree();
203                          
204                          
205                           
206                         var parents =   new Ggit.Commit[] { master_commit };
207
208
209                         var new_tree = this.repo.lookup(treeoid,typeof (Ggit.Tree))  as   Ggit.Tree;
210                         
211                         var sig = new Ggit.Signature.now(
212                                         this.repo.get_config().get_string("user.name"),
213                                         this.repo.get_config().get_string("user.email")
214                         );
215                         
216                         
217                         
218                         this.repo.create_commit("HEAD", sig, sig, null, "Test Merge", new_tree, parents);
219          
220                         
221                         
222                 }
223                 
224                 public void diffhead()
225                 {
226                         var r = this.repo.enumerate_branches(Ggit.BranchType.LOCAL);
227                         Ggit.GitBranch head;
228                         while (r.next()) {
229                                 var gbr = r.get() as Ggit.Branch;
230                                 if (gbr.is_head()) {
231                                         head = gbr;
232                                 }
233                         }
234                         
235                 }
236                 
237                 
238                 public void mergeMasterIntoHead()
239                 {
240                         // assumes head is not master...
241                         this.loadLocalBranches();
242                         GLib.debug("head rev = %s", this.head.get_name());
243                         var head_oid =  this.repo.revparse(this.head.get_name() ).get_id()  ;
244                         //var master_oid =  this.repo.revparse("refs/heads/master" ).get_id()  ;
245                         var master_oid =  this.repo.revparse("HEAD" ).get_id()  ;
246
247                         var master_commit  = this.repo.lookup_commit(master_oid);;
248                         var head_commit = this.repo.lookup_commit(head_oid);
249                          
250                 
251                         var anc_oid = this.repo.merge_base(master_commit.get_id(), head_commit.get_id());
252                         
253                         var anc_commit = this.repo.lookup_commit(anc_oid);
254                         var anc_tree = anc_commit.get_tree();
255                         
256                         var mo = new Ggit.MergeOptions();
257                         var co = new Ggit.CheckoutOptions();
258                         var the_ref = this.repo.lookup_reference_dwim("refs/heads/master");
259
260                     var ac = new Ggit.AnnotatedCommit.from_ref(this.repo, the_ref);
261                         
262                         var commits =   new Ggit.AnnotatedCommit[] { ac };
263                         
264                         this.repo.merge(commits, mo, co);
265                         
266                         var cfg = this.repo.get_config().snapshot();
267                         
268                     var sig = new Ggit.Signature.now(
269                                         cfg.get_string("user.name"),
270                                         cfg.get_string("user.email")
271                         );
272                         var new_head = this.repo.get_head();
273                         var oid = new_head.get_target();
274
275                         var ix = this.repo.get_index();
276  
277                         ix.write();
278                         var treeoid = ix.write_tree();
279
280                         var new_tree = this.repo.lookup(treeoid,typeof (Ggit.Tree))  as   Ggit.Tree;
281                         
282                         var parent = new_head.lookup() as Ggit.Commit;
283                         Ggit.Commit[] parents =  new Ggit.Commit[] { parent };
284                         
285                         this.repo.create_commit("refs/heads/" + this.head.get_name(), sig, sig, null, "Test Merge", new_tree, parents);
286          
287                 }
288                 
289                 
290
291                 
292                 
293                 /*
294                 public bool doMergeClose(string commit_message)
295                 {
296                         this.loadLocalBranches(true);
297                         var oldbranch = this.head.get_name();
298             // going to asume this is merge trees..
299                            string [] cmd = { "merge",   "--squash",  oldbranch };
300                            this.git( cmd );
301                            cmd = { "commit",   "-a" , "-m",  commit_message };
302                            this.git( cmd );
303                            this.push();
304                            this.loadBranches(); // updates lastrev..
305                
306                        var notification = new Notify.Notification(
307                                "Merged branch %s to %s".printf(oldbranch, master),
308                                "",
309                                 "dialog-information"
310                                
311                        );
312
313                        notification.set_timeout(5);
314                        notification.show();   
315                
316                 
317                 }
318                 */
319                 
320                 
321                 public bool is_auto_branch ()
322                 {
323                         if (this.name == "gitlog") {
324                                 return false;
325                         }
326                         // check remote...
327                         if (this.is_managed()) {
328                                 return true;
329                         }
330                         return false;
331                         
332          
333                 }
334                 
335                 public async void loadRemoteHeads(bool force = false)
336                 {
337                     SourceFunc callback = loadRemoteHeads.callback;
338                         
339                         ThreadFunc<bool> run = () => {
340                                 
341                                 if (!force && this.remote_heads != null) {
342                                         return true;;
343                                 }
344                                 var r = this.repo.lookup_remote("origin");
345                                 r.connect(Ggit.Direction.FETCH, this.callbacks, null, null);
346                                 yield;
347                                 this.remote_heads = r.list();
348                                 
349                                 foreach(var br in this.remote_heads) {
350                                         if (!br.get_name().has_prefix("refs/heads/")) {
351                                                 continue;
352                                         }
353                                         
354                                         GLib.debug("Remote: name=%s  oid=%s local_oid=%s is_local=%s",
355                                                 br.get_name(),
356                                                 br.get_oid().to_string(),
357                                                 br.get_local_oid().to_string(),
358                                                 br.is_local() ? "Y" : "n"
359                                                 );
360                                 }
361                                 Idle.add((owned) callback);
362                                 return true;;
363                         };
364                         new Thread<bool>("loadRemoteHeads-" , run);
365                         yield;
366                         
367
368                 }
369                  
370                 
371                 Ggit.Branch? getBranch(string remote_name, string remote_branch_name)
372                 {
373                          //GLib.debug("bn=%s",remote_branch_name);
374                          if (remote_branch_name.has_prefix("refs/remotes/")) {
375                                  return null;
376                          }
377
378                          var target = remote_branch_name.replace("refs/heads/", remote_name+"/") .replace("refs/remotes/", "");
379                         if (target == "HEAD") {
380                                 target = remote_name +"/master";
381                         }
382                          
383                         foreach(var br in this.branches) {
384                         //      GLib.debug("test:%s=%s", br.get_upstream().get_shorthand() , target);
385                                 if ( br.get_upstream().get_shorthand() == target) {
386                                         return br;
387                                 }
388                                 
389                         }
390                         //GLib.debug("missing %s", remote_branch_name);                 
391                         return null;
392                 
393                 }
394                  
395                 
396                 public void fetchAll()
397                 {
398                         this.loadLocalBranches();
399                         this.loadRemoteHeads();
400                         
401                         // remotes probably will not work with http auth..
402                         //var ar = this.repo.list_remotes();
403                         //foreach(var n in ar) {
404                         var n = "origin"; 
405                         
406                                 GLib.debug("got remote '%s'", n);
407                                 var r = this.repo.lookup_remote(n);
408                                 GLib.debug("connecting '%s'", r.get_url());
409                                  
410                                 try {
411                                         string[] h = { "a = 1" };
412                                         r.connect(Ggit.Direction.FETCH, this.callbacks, null, null);
413                                         
414                                 } catch (Error e) {
415                                         GLib.debug("Got Error Message: %s", e.message);
416                                         return;
417                                 }
418                                 string[] far = {};
419
420                                 foreach(var rh in this.remote_heads) {
421                                         if (rh.get_name().has_prefix("refs/remotes/")) {
422                                                    continue;
423                                          }
424                                 
425                                         var br = this.getBranch(n, rh.get_name());
426                                  
427                                         /*GLib.debug("got heads: name=%s   rev=%s  localrev=%s",
428                                                 rh.get_name(), 
429                                                 rh.get_oid().to_string(),
430                                                 br == null ? "?": this.repo.revparse(br.get_name() ).get_id().to_string()
431                                         );
432                                         */
433                                         //var loc_oid = this.repo.revparse(br.get_name() ).get_id();
434                                         
435                                         var loc_oid = br.get_target();
436                                         
437                                         size_t ahead, behind;
438                                         this.repo.get_ahead_behind(
439                                                 loc_oid,
440                                                 rh.get_oid(),
441                                                 out ahead,
442                                                 out behind
443                                         );
444                                         
445                                         if (rh.get_oid().to_string() == this.repo.revparse(br.get_name() ).get_id().to_string()) {
446                                                 continue;
447                                         }
448                                         if (ahead > 0) {
449                                                 continue;
450                                         }
451                                         far += ("+refs/heads/" + br.get_name()) + ":refs/remotes/" + n + "/" + rh.get_name().replace("refs/heads/","");
452                                 } 
453                                 
454                                 if (far.length < 1) {
455                                         GLib.debug("no fetch required.. it's uptodate");
456                                         r.disconnect();
457                                         return;
458                                 }
459                                 
460                                 GLib.debug("getting remote specs '%s', %d", n, far.length);
461                                 
462 /*
463                                 var far = r.get_fetch_specs();
464                                 */
465                                 foreach(var rs in far) {
466                                         GLib.debug("got remote spec: %s", rs);
467                                         
468                                 }
469
470                                 var options = new Ggit.FetchOptions();
471                                 options.set_remote_callbacks(this.callbacks);
472                                 //yield Async.thread(() => {
473         
474                                         r.download(far, options);
475                                 //});
476                                 r.disconnect();
477                                 
478                                 //r.download(
479                          
480                 
481                 }
482                 
483                 
484                 
485                 public void pushAll()
486                 {
487                         
488                         this.loadLocalBranches();
489                         this.loadRemoteHeads();
490                         // remotes probably will not work with http auth..
491                         //var ar = this.repo.list_remotes();
492                         var n = "origin";
493                         
494                                 GLib.debug("got remote '%s'", n);
495                                 var r = this.repo.lookup_remote(n);
496                                 GLib.debug("connecting '%s'", r.get_url());
497                                  
498                                 r.connect(Ggit.Direction.PUSH, this.callbacks, null, null);
499                                 
500                                 //GLib.debug("getting specs '%s'", n);
501                                 /* 
502                                 
503                                 this.repo.add_remote_push(
504                                         "origin",
505                                         "+%s:%s".printf(head.get_shorthand(),head.get_name())
506                                 );
507  */
508  
509                                 string[] far = {};
510                                 var heads = r.list();
511                                 foreach(var rh in heads) {
512                                         if (rh.get_name().has_prefix("refs/remotes/")) {
513                                                    continue;
514                                          }
515                                 
516                                         var br = this.getBranch(n, rh.get_name());
517                                         /*
518                                         GLib.debug("got heads: name=%s   rev=%s  localrev=%s",
519                                                 rh.get_name(), 
520                                                 rh.get_oid().to_string(),
521                                                 br == null ? "?": this.repo.revparse(br.get_name() ).get_id().to_string()
522                                         );*/
523                                         var loc_oid = this.repo.revparse(br.get_name() ).get_id();
524                                         size_t ahead, behind;
525                                         this.repo.get_ahead_behind(
526                                                 loc_oid,
527                                                 rh.get_oid(),
528                                                 out ahead,
529                                                 out behind
530                                         );
531                                         
532                                         if (rh.get_oid().to_string() == this.repo.revparse(br.get_name() ).get_id().to_string()) {
533                                                 continue;
534                                         }
535                                         if (behind > 0) {
536                                                 continue;
537                                         }
538                                         far += ("+refs/heads/" + br.get_name()) + ":"+ rh.get_name();
539                                 }  
540                                 
541                                 if (far.length < 1) {
542                                         GLib.debug("no push required.. it's uptodate");
543                                         r.disconnect();
544                                         return;
545                                 }
546  
547                                 /*var head = this.repo.get_head();
548                                 string[] far = {};
549                                 far += "+%s:%s".printf(head.get_name(),head.get_name());
550                                 */
551                                 foreach(var rs in far) {
552                                         GLib.debug("got remote spec: %s", rs);
553                                         
554                                 }
555                                         
556                                 var popts = new Ggit.PushOptions();
557                                  popts.callbacks = this.callbacks;
558                                 GLib.debug("Push?");
559                                 r.upload(far,popts);
560                                 GLib.debug("Push done?");
561                                 r.disconnect();
562                                 
563                                 
564                                 //r.download(
565                          
566                 
567                 }
568                 
569                  
570
571         }
572         
573         private class Callbacks : Ggit.RemoteCallbacks
574         {
575                 //private Remote d_remote;
576                 private Ggit.RemoteCallbacks? d_proxy = null;
577
578                 public delegate void TransferProgress(Ggit.TransferProgress stats);
579                 //private TransferProgress? d_transfer_progress;
580
581                 public Callbacks( Repo repo)  //, Ggit.RemoteCallbacks? proxy) //,Remote remote, owned TransferProgress? transfer_progress)
582                 {
583                         //d_remote = remote;
584                         //d_proxy = proxy;
585                         //d_transfer_progress = (owned)transfer_progress;
586                 }
587
588                 protected override void progress(string message)
589                 {
590                         GLib.debug("progress: %s", message);
591                         if (d_proxy != null)
592                         {
593                                 d_proxy.progress(message);
594                         }
595                 }
596
597                 protected override void transfer_progress(Ggit.TransferProgress stats)
598                 {
599                         GLib.debug("transfer_progress");
600                         /*
601                         if (d_transfer_progress != null)
602                         {
603                                 d_transfer_progress(stats);
604                         }
605
606                         if (d_proxy != null)
607                         {
608                                 d_proxy.transfer_progress(stats);
609                         }
610                         */
611                 }
612
613                 protected override void update_tips(string refname, Ggit.OId a, Ggit.OId b)
614                 {
615                         GLib.debug("update_tips");
616                         //d_remote.tip_updated(refname, a, b);
617
618                         if (d_proxy != null)
619                         {
620                                 d_proxy.update_tips(refname, a, b);
621                         }
622                 }
623
624                 protected override void completion(Ggit.RemoteCompletionType type)
625                 {
626                         GLib.debug("completion");
627                         if (d_proxy != null)
628                         {
629                                 d_proxy.completion(type);
630                         }
631                 }
632
633                 protected override Ggit.Cred? credentials(string url, string? username_from_url, Ggit.Credtype allowed_types) throws Error
634                 {
635  
636                         GLib.debug("get credentials %s  UN=%s", url, username_from_url);
637                         var uri = new Soup.URI(url);
638
639                         if (uri != null) {
640                                 var ret = this.netrc(uri.get_host());
641                                 if (ret != null) {
642                                         return ret;
643                                 }
644                                 
645                                 //return new Ggit.CredPlaintext(username_from_url, "test");
646                         }
647                         return null;
648                         /*var provider = d_remote.credentials_provider;
649
650                         if (provider != null)
651                         {
652                                 ret = provider.credentials(url, username_from_url, allowed_types);
653                         }
654
655                         if (ret == null && d_proxy != null)
656                         {
657                                 ret = d_proxy.credentials(url, username_from_url, allowed_types);
658                         }
659                         
660                         return ret;
661                         */
662                 }
663                 public  Ggit.Cred netrc(string domain) 
664                 {
665                         string str;
666                         GLib.FileUtils.get_contents(GLib.Environment.get_home_dir() + "/.netrc", out str);
667                         var lines = str.split("\n");
668                         for(var i=0; i< lines.length; i++) {
669                                 // assumes one line per entry.. if not we are buggered...
670                                 //GLib.debug("got %s" , lines[i]);
671                         
672                                 var bits =  Regex.split_simple ("[ \t]+", lines[i].strip());
673                                 if (bits.length < 6 || bits[0] != "machine" || bits[1] != domain) {
674                                         continue;
675                                 }
676                                 GLib.debug("found password?");
677                                 // we are gussing.... 
678                                 return new Ggit.CredPlaintext(bits[3], bits[5]);
679
680                         }
681                         return null;
682
683
684                 
685                 
686                 }
687                 
688         }
689         
690         
691
692 }