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  
40         
41      
42         
43         public string toString()
44         {
45                 return 
46                         "active: " + (active ? "true" : "false") + "\n" +
47                         "is_remote: " + (is_remote ? "true" : "false") + "\n" +                 
48                         "lastrev: " + lastrev + "\n" +
49                         "name: " + name + "\n" +
50                         "remote: " + remote + "\n" +
51                         "remoterev: " + remoterev + "\n" +
52                         "age: " + age + "\n" ;
53         }
54         
55         
56         public GitBranch(GitRepo repo)
57         {
58                 this.repo = repo;
59         }
60         
61         
62         
63
64         public static  void loadBranches(GitRepo repo)
65         {
66                 repo.branches = new Gee.HashMap<string,GitBranch>();
67         
68         //var branches =  new Gee.HashMap<string,GitBranch>();
69         //var local =  new Gee.HashMap<string,GitBranch>();
70         var remotes  =  new Gee.HashMap<string,Ggit.OId>();
71         var remotes_used  =  new Gee.HashMap<string,bool>();
72          
73   
74                 
75                 var rem = repo.repo.lookup_remote("origin");
76                 var cb = new GitCallbacks(repo);
77                 rem.connect(Ggit.Direction.FETCH, cb, null, null);
78                 var remote_heads = rem.list();
79                 foreach(var rh in remote_heads) {
80                         var rn = rh.get_name();
81                         if (!rn.has_prefix("refs/heads/")) {
82                                 continue;
83                         }
84                         remotes.set(rn.substring(11), rh.get_oid());
85                         remotes_used.set(rn.substring(11), false);
86
87           }
88                 
89                  
90                 var r = repo.repo.enumerate_branches(Ggit.BranchType.LOCAL);
91                 while (r.next()) {
92                         var br = new GitBranch(repo);
93                         var gbr = r.get() as Ggit.Branch;
94                         repo.branches.set(gbr.get_name(), br);
95                         br.active = gbr.is_head();
96                         br.name = gbr.get_name();
97                         br.lastrev = gbr.get_target().to_string();
98                         var rname = gbr.get_upstream() != null ? gbr.get_upstream().get_name() : "";
99                         if (rname.has_prefix("refs/remotes/origin/")) {
100                                 rname = rname.substring(20);
101                                 if (remotes.has_key(rname)) {
102                                         br.remote = rname;
103                                         br.remoterev = remotes.get(rname).to_string();
104                                         remotes_used.set(rname,true);
105                                 }
106                                 size_t ahead, behind;
107                                 repo.repo.get_ahead_behind(
108                                         gbr.get_target(),
109                                         rh.get_oid(),
110                                         out ahead,
111                                         out behind
112                                 );
113                                 repo.revparse(br.get_name() ).get_id();
114                                 
115                                 // age?
116                                 // behind or infront..
117                         }
118                         
119                 }
120                 
121                 // find unused remotes.. and track them...
122                 
123                 
124                 
125                 
126         
127       //         repo.git( { "fetch",  "-a" } ); == done async before...
128         
129         string[] cmd = { "branch",   "--no-color", "--verbose", "--no-abbrev" , "-a"  };
130         var res = repo.git( cmd );
131         var lines = res.split("\n");
132         for (var i = 0; i < lines.length ; i++) {
133                 var br = new GitBranch(repo);
134                 if (!br.parseBranchListItem(lines[i])) {
135                         continue;
136                 }
137                 GLib.debug("add branch %s", br.realName());
138                 if (!br.is_remote) {
139                         local.set(br.name, br);
140                 } else {
141                         remotes.set(br.remote, br);
142                         }
143                  
144                 branches.set(br.realName(), br);
145                 if (br.active) {
146                         repo.currentBranch = br;
147                 }
148         }
149         
150          var bl = repo.git({
151                 "for-each-ref",
152                 "--format",   "%(refname:short):remotes/%(upstream:short):remotes/%(authordate:relative)",
153                 "refs/heads"
154                 }).split("\n");
155         
156         foreach(var line in bl) {
157                 if (line.length < 1) continue;
158                 
159                 var ar = line.split(":remotes/");
160                 var lname= ar[0];
161             var rname = "remotes/" + ar[1];
162             
163             
164                 //print(rname);
165                 // we should always have a local version of it.
166             if (branches.has_key(lname)) {      
167                     branches.get(lname).remote = rname;
168                     branches.get(lname).age = ar[2];
169             }
170             
171             if (!branches.has_key(rname) || !branches.has_key(lname)  ) {
172                     continue;
173             }
174             branches.get(lname).remoterev =  branches.get(rname).lastrev;
175                 // flag it for not adding..
176                 
177             branches.get(rname).name = lname;
178         }
179         foreach(var br in branches.values) {
180                 GLib.debug("BRANCH:\n%s\n" , br.toString());
181                 if (br.name.length > 0 || ! /^remotes\/origin\//.match(br.remote)) {
182                         GLib.debug("SKIP - track exists");
183                         continue;
184                 }
185                 var newname = br.remote.replace("remotes/origin/","");
186                 if (branches.has_key(newname)) {
187                         GLib.debug("SKIP - have branch already");
188                         continue;
189                         }
190                     
191                  
192                 repo.git(  { "branch" ,"--track" , newname,  "origin/" + newname} ); 
193                 //
194                 br.name  = newname;
195                 local.set(br.name, br);
196         }
197         
198         /*
199         this bit of the code tries to turn a local branch into a track of a remote one.
200         -- that's probably not a good idea.
201         var r_replace = new Regex("^remotes/");
202         var o_replace = new Regex("^origin/");
203         foreach(var r in remotes.values) {
204                 if (r.name.length >0) {
205                         return;
206                 }
207                 var name = r_replace.replace(r.name, r.name.length,0, "");
208                 name = o_replace.replace(name, name.length,0, "");
209                 name = name.replace("/", ".");
210                 
211         }
212         */
213         repo.branches = local;
214         
215     
216         
217         }
218
219
220         public bool parseBranchListItem(string str)
221         {
222                 if (str.length  < 1) {
223                         return false;
224                 }
225                 this.active = str[0] == '*';
226                 
227                 var parts = Regex.split_simple ("[ \t]+", str.substring(2).strip());
228                 if (parts[1] == "->") { // it's an alias.. eg. remotes/origin/HEAD -> origin/master..
229                         return false;
230                 }
231                 this.is_remote = false;
232                 this.lastrev = parts[1];
233                 if (parts[0].has_prefix("remotes/")) {
234                         this.is_remote  = true;
235                         this.remote = parts[0];
236                 } else {
237                         this.name = parts[0];
238                 }
239             return true;
240         }
241         public string  realName()
242         {
243                 return this.is_remote ? this.remote : this.name;
244         }
245         
246         public void create()
247         {
248         
249         }
250         
251 }
252         
253