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