GitBranch.vala
[gitlive] / GitBranch.vala
1 /**
2 represent a git branch..
3 Branching / Gitlive:
4
5 Does repo require branching? - flag in config?
6 ** list of repo's ?? with ability to turn on/off
7
8 Start editing without branch?
9 -> show prompt to start branch
10 -> flag a ticket? optional ??
11
12 Once editing branch...
13 -> merge with squash / ticket...
14 ** show list of repo's with 'working' branches?
15 ** select some/all to merge with a issue fix..
16
17 ?? closing ticket in system ??
18 -> done by the ui?
19
20 need to push all? / fetch all?
21
22
23 list of repo's
24
25
26 */
27
28 public class GitBranch : Object
29 {
30         public GitRepo repo;
31         
32         public bool active = false;
33         public string lastrev = "";
34         public string name = ""; // human friendly name...
35         public bool is_remote;
36         public string remote = "";
37         public string remoterev = "";
38         public string age = "";
39     public int ahead = 0;
40     public int behind = 0;    
41         
42      
43         
44         public string toString()
45         {
46                 return 
47                         "active: " + (active ? "true" : "false") + "\n" +
48                         "is_remote: " + (is_remote ? "true" : "false") + "\n" +                 
49                         "lastrev: " + lastrev + "\n" +
50                         "name: " + name + "\n" +
51                         "remote: " + remote + "\n" +
52                         "remoterev: " + remoterev + "\n" +
53                         "age: " + age + "\n" ;
54         }
55         
56         
57         public GitBranch(GitRepo repo)
58         {
59                 this.repo = repo;
60         }
61         
62         
63         
64
65         public static  void loadBranches(GitRepo repo)
66         {
67                 repo.branches = new Gee.HashMap<string,GitBranch>();
68         
69         //var branches =  new Gee.HashMap<string,GitBranch>();
70         //var local =  new Gee.HashMap<string,GitBranch>();
71         var remotes  =  new Gee.HashMap<string,Ggit.OId>();
72         var remotes_used  =  new Gee.HashMap<string,bool>();
73          
74   
75                 
76                 var rem = repo.repo.lookup_remote("origin");
77                 var cb = new GitCallbacks(repo);
78                 rem.connect(Ggit.Direction.FETCH, cb, null, null);
79                 var remote_heads = rem.list();
80                 foreach(var rh in remote_heads) {
81                         var rn = rh.get_name();
82                         if (!rn.has_prefix("refs/heads/")) {
83                                 continue;
84                         }
85                         remotes.set(rn.substring(11), rh.get_oid());
86                         remotes_used.set(rn.substring(11), false);
87
88           }
89                 
90                  
91                 var r = repo.repo.enumerate_branches(Ggit.BranchType.LOCAL);
92                 while (r.next()) {
93                         var br = new GitBranch(repo);
94                         var gbr = r.get() as Ggit.Branch;
95                         repo.branches.set(gbr.get_name(), br);
96                         br.active = gbr.is_head();
97                         br.name = gbr.get_name();
98                         br.lastrev = gbr.get_target().to_string();
99                         var rname = gbr.get_upstream() != null ? gbr.get_upstream().get_name() : "";
100                         if (rname.has_prefix("refs/remotes/origin/")) {
101                                 rname = rname.substring(20);
102                                 if (remotes.has_key(rname)) {
103                                         br.remote = rname;
104                                         br.remoterev = remotes.get(rname).to_string();
105                                         remotes_used.set(rname,true);
106                                         size_t ahead, behind;
107                                         repo.repo.get_ahead_behind(
108                                                 gbr.get_target(),
109                                                 remotes.get(rname),
110                                                 out ahead,
111                                                 out behind
112                                         );
113                                         br.ahead = (int)ahead;
114                                         br.behind = (int) behind;
115
116                                 }
117                                  
118                                 
119                                 // age?
120                                 // behind or infront..
121                         }
122                         
123                 }
124                 
125                 // find unused remotes.. and track them...
126                 foreach(var rn in remotes_used.keys) {
127                         if (this.remotes_used.get(rn)) {
128                                 continue;
129                         }
130                         repo.git(  { "branch" ,"--track" , rn,  "origin/" + rn} ); 
131                         
132                 }
133                 
134                 
135                 
136         
137       //         repo.git( { "fetch",  "-a" } ); == done async before...
138         
139         string[] cmd = { "branch",   "--no-color", "--verbose", "--no-abbrev" , "-a"  };
140         var res = repo.git( cmd );
141         var lines = res.split("\n");
142         for (var i = 0; i < lines.length ; i++) {
143                 var br = new GitBranch(repo);
144                 if (!br.parseBranchListItem(lines[i])) {
145                         continue;
146                 }
147                 GLib.debug("add branch %s", br.realName());
148                 if (!br.is_remote) {
149                         local.set(br.name, br);
150                 } else {
151                         remotes.set(br.remote, br);
152                         }
153                  
154                 branches.set(br.realName(), br);
155                 if (br.active) {
156                         repo.currentBranch = br;
157                 }
158         }
159         
160          var bl = repo.git({
161                 "for-each-ref",
162                 "--format",   "%(refname:short):remotes/%(upstream:short):remotes/%(authordate:relative)",
163                 "refs/heads"
164                 }).split("\n");
165         
166         foreach(var line in bl) {
167                 if (line.length < 1) continue;
168                 
169                 var ar = line.split(":remotes/");
170                 var lname= ar[0];
171             var rname = "remotes/" + ar[1];
172             
173             
174                 //print(rname);
175                 // we should always have a local version of it.
176             if (branches.has_key(lname)) {      
177                     branches.get(lname).remote = rname;
178                     branches.get(lname).age = ar[2];
179             }
180             
181             if (!branches.has_key(rname) || !branches.has_key(lname)  ) {
182                     continue;
183             }
184             branches.get(lname).remoterev =  branches.get(rname).lastrev;
185                 // flag it for not adding..
186                 
187             branches.get(rname).name = lname;
188         }
189         foreach(var br in branches.values) {
190                 GLib.debug("BRANCH:\n%s\n" , br.toString());
191                 if (br.name.length > 0 || ! /^remotes\/origin\//.match(br.remote)) {
192                         GLib.debug("SKIP - track exists");
193                         continue;
194                 }
195                 var newname = br.remote.replace("remotes/origin/","");
196                 if (branches.has_key(newname)) {
197                         GLib.debug("SKIP - have branch already");
198                         continue;
199                         }
200                     
201                  
202                 repo.git(  { "branch" ,"--track" , newname,  "origin/" + newname} ); 
203                 //
204                 br.name  = newname;
205                 local.set(br.name, br);
206         }
207         
208         /*
209         this bit of the code tries to turn a local branch into a track of a remote one.
210         -- that's probably not a good idea.
211         var r_replace = new Regex("^remotes/");
212         var o_replace = new Regex("^origin/");
213         foreach(var r in remotes.values) {
214                 if (r.name.length >0) {
215                         return;
216                 }
217                 var name = r_replace.replace(r.name, r.name.length,0, "");
218                 name = o_replace.replace(name, name.length,0, "");
219                 name = name.replace("/", ".");
220                 
221         }
222         */
223         repo.branches = local;
224         
225     
226         
227         }
228
229
230         public bool parseBranchListItem(string str)
231         {
232                 if (str.length  < 1) {
233                         return false;
234                 }
235                 this.active = str[0] == '*';
236                 
237                 var parts = Regex.split_simple ("[ \t]+", str.substring(2).strip());
238                 if (parts[1] == "->") { // it's an alias.. eg. remotes/origin/HEAD -> origin/master..
239                         return false;
240                 }
241                 this.is_remote = false;
242                 this.lastrev = parts[1];
243                 if (parts[0].has_prefix("remotes/")) {
244                         this.is_remote  = true;
245                         this.remote = parts[0];
246                 } else {
247                         this.name = parts[0];
248                 }
249             return true;
250         }
251         public string  realName()
252         {
253                 return this.is_remote ? this.remote : this.name;
254         }
255         
256         public void create()
257         {
258         
259         }
260         
261 }
262         
263