Partial Fix #5782 - messing around with libgit2-glib
[gitlive] / Git.vala
diff --git a/Git.vala b/Git.vala
new file mode 100644 (file)
index 0000000..795eabb
--- /dev/null
+++ b/Git.vala
@@ -0,0 +1,712 @@
+
+// valac -o /tmp/ggit Git.vala --pkg libgit2-glib-1.0 --pkg libsoup-2.4 --pkg gee-0.8 -g
+
+void main()
+{
+        GLib.Log.set_handler(null, 
+            GLib.LogLevelFlags.LEVEL_DEBUG | GLib.LogLevelFlags.LEVEL_WARNING | GLib.LogLevelFlags.LEVEL_INFO, 
+            (dom, lvl, msg) => {
+                                       
+                                       
+               // should we debug..
+                                       
+                       
+               print("%s\n", msg);
+            }
+         ); 
+
+       
+       Ggit.init();
+       var a = new GitLive.Repo("/home/alan/gitlive/gitlive");
+       a.diffhead();
+       //a.fetchAll();
+       return;
+       /*
+       GLib.Timeout.add (1, () => {
+      GLib.debug("Meanwhile");
+      return true;
+    }, GLib.Priority.HIGH);
+       
+       var loop = new MainLoop();
+        
+       var a = new GitLive.Repo("/home/alan/gitlive/web.coba");
+      GLib.debug("Starting");  
+       a.loadRemoteHeads.begin(true, (obj,res) => {
+               a.loadRemoteHeads.end(res);
+                GLib.debug("got results");
+               a.loadLocalBranches();
+               loop.quit();
+       });
+       loop.run();
+       //a.mergeMasterIntoHead();
+       //a.walkDiff();
+       //return;
+       //a.is_managed();
+       //a.is_autocommit();
+       
+
+       //a.fetchAll();
+       //
+       /*
+       var a = new GitLive.Repo("/home/alan/git/test1-clone");
+       //a.fetchAll();
+       var str = (new GLib.DateTime.now_utc()).format("%Y-%m-%d %H:%M:%S");
+       GLib.FileUtils.set_contents("/home/alan/git/test1-clone/test1",  str); 
+       
+       var ix = a.repo.get_index();
+       ix.add_path("test1");
+       ix.write();
+       var treeoid = ix.write_tree();
+
+       var head = a.repo.get_head();
+       var parent = head.lookup() as Ggit.Commit;
+       Ggit.Commit[] parents = (parent == null) ? 
+               new Ggit.Commit[] {} :
+               new Ggit.Commit[] { parent };
+
+       var tree = a.repo.lookup(treeoid,typeof (Ggit.Tree))  as   Ggit.Tree;// odd format.. 
+       
+       var sig = new Ggit.Signature.now("Alan Knowles", "alan@roojs.com");
+       a.repo.create_commit("HEAD", sig, sig, null, "test commit " + str, tree, parents);
+       */
+       // mmh.. no git add/commit in library...
+//     string[] spawn_args = {"git", "commit", "-m", "test", "-a"};
+       //string[] spawn_env = Environ.get ();
+//     Process.spawn_sync ("/home/alan/git/test1-clone", spawn_args, spawn_env, SpawnFlags.SEARCH_PATH, null);
+       //a.pushAll();
+}
+
+namespace  GitLive {
+
+       public class Repo : Object {
+
+               string name = "";
+               public Ggit.Repository  repo;
+               Callbacks callbacks;
+
+               public Repo(string path)
+               {
+                       this.name = GLib.Path.get_basename(path);
+                       this.repo = Ggit.Repository.open(GLib.File.new_for_path(path));
+                       this.callbacks = new Callbacks(this);
+               
+               }
+               Ggit.Branch                                             head = null;
+           Gee.ArrayList<Ggit.Branch>          branches = null;
+           Ggit.RemoteHead[]                           remote_heads = null;
+               public void loadLocalBranches(bool force = false)
+               {
+                       if (!force && this.branches != null) {
+                               return;
+                       }
+                       
+                       this.branches =  new Gee.ArrayList<Ggit.Branch>();
+                       var r = this.repo.enumerate_branches(Ggit.BranchType.LOCAL);
+                       while (r.next()) {
+                               var br = r.get() as Ggit.Branch;
+                               if (br == null) {
+                                       continue;
+                               }
+                               if (br.is_tag()) {
+                                       continue;
+                               }
+                               
+                               //var head = this.repo.revparse("refs/heads/" + br.get_name() ).get_id();
+                               //var rhead = this.repo.revparse(br.get_upstream().get_name() ).get_id();
+                               try {
+                                       GLib.debug("got branch: N=%s", br.get_name() );
+                                       GLib.debug("is_head %s", br.is_head() ? "Y" : "n");
+
+                                       GLib.debug("upstream = %s", br.get_upstream() == null ? "??" : br.get_upstream().get_name().substring(20));
+                                       GLib.debug("oid = %s",br.get_target().to_string());
+                                       this.branches.add(br);
+                                       if (br.is_head()) {
+                                               GLib.debug("HEAD= %s", br.get_name());
+                                               this.head = br;
+                                       }
+                               } catch (Error e) {
+                                       GLib.debug("Skip branch");
+                               }
+                       }
+                       
+                       
+               }
+                
+               public bool is_managed()
+               {
+                       GLib.debug("is_managed: %d", this.repo.get_config().get_int32("gitlive.managed"));
+                       return this.repo.get_config().get_int32("gitlive.managed") == 1;
+               }
+               
+               
+               public bool is_autocommit ()
+               {       
+                       GLib.debug("is_autocommit: %d", this.repo.get_config().get_int32("gitlive.autocommit"));
+                       return this.repo.get_config().get_int32("gitlive.autocommit") == 1;
+               }
+               public void set_autocommit(bool val)
+               {
+                       this.repo.get_config().set_int32("gitlive.autocommit", val ? 1 : 0);
+               
+               }
+                
+               public void walkDiff()
+               {
+                       this.loadLocalBranches();
+                       
+                       
+                       
+                       var oid =  this.repo.revparse(this.head.get_name() ).get_id()  ;
+                       var moid =  this.repo.revparse("refs/heads/master" ).get_id()  ;
+                       
+                       var a = new Ggit.RevisionWalker(this.repo);
+                       a.set_sort_mode(Ggit.SortMode.TOPOLOGICAL);
+                       a.push(oid);
+                       a.hide(moid);
+                       var last = oid;
+                       for (var noid = a.next(); noid != null; noid= a.next()) {
+                               //var commit = this.repo.lookup(noid, typeof(Ggit.Commit)) as Ggit.Commit;
+                               GLib.debug("rev: %s",
+                                       noid.to_string()
+                               );
+                               last = noid;
+                       }
+                       var commit = this.repo.lookup(last, typeof(Ggit.Commit)) as Ggit.Commit;
+                       var parent = commit.get_parents();
+                       GLib.debug("parent = %s", parent.get_id(0).to_string());
+                       var master_rev =  parent.get_id(0);
+                       var master_commit  = this.repo.lookup_commit(master_rev);;
+                       
+                       var head_commit = this.repo.lookup_commit(oid);
+                       
+                       var master_tree = master_commit.get_tree();
+                       var head_tree = head_commit.get_tree();
+                       
+                       var diff = new Ggit.Diff.tree_to_tree(this.repo, master_tree, head_tree, new Ggit.DiffOptions());
+                       
+                       diff.print(Ggit.DiffFormatType.PATCH, ( delta,  hunk,  line) => {
+                               GLib.debug("%d: %s, %s", line.get_new_lineno(), line.get_origin().to_string(), line.get_text());
+                               return 0;
+                       });
+                       // let's try a merge..
+                       var mo = new Ggit.MergeOptions();
+                       mo.set_file_favor(Ggit.MergeFileFavor.THEIRS);
+                       var ix = this.repo.merge_trees(master_tree, master_tree, head_tree, mo);
+                       
+                       if (ix.has_conflicts()) {
+                               GLib.debug("merge has conflicts");
+                               return;
+                       }
+                        var treeoid = ix.write_tree();
+                        
+                        
+                         
+                       var parents =   new Ggit.Commit[] { master_commit };
+
+
+                       var new_tree = this.repo.lookup(treeoid,typeof (Ggit.Tree))  as   Ggit.Tree;
+                       
+                       var sig = new Ggit.Signature.now(
+                                       this.repo.get_config().get_string("user.name"),
+                                       this.repo.get_config().get_string("user.email")
+                       );
+                       
+                       
+                       
+                       this.repo.create_commit("HEAD", sig, sig, null, "Test Merge", new_tree, parents);
+        
+                       
+                       
+               }
+               
+               public void diffhead()
+               {
+                       var r = this.repo.enumerate_branches(Ggit.BranchType.LOCAL);
+                       Ggit.Branch? head = null;
+                       while (r.next()) {
+                               var gbr = r.get() as Ggit.Branch;
+                               if (gbr.is_head()) {
+                                       head = gbr;
+                               }
+                       }
+                       GLib.debug("checking head=%s",head == null ? "EMPTY" :  head.get_name());
+                       var br = this.repo.lookup_branch(head.get_name(),Ggit.BranchType.LOCAL);
+                       var commit  = this.repo.lookup_commit(br.get_target());
+
+                       
+                       var diff = new Ggit.Diff.tree_to_workdir(this.repo, commit.get_tree(), new Ggit.DiffOptions());
+                       var ret = "";
+                       diff.print(Ggit.DiffFormatType.PATCH, (delta, hunk, line) => {
+                               switch(line.get_origin()) {
+                                       case Ggit.DiffLineType.ADDITION: ret+="+"; break;
+                                       case Ggit.DiffLineType.DELETION: ret+="-";break;
+                                       case Ggit.DiffLineType.CONTEXT:  ret+=" ";break;
+                                       case Ggit.DiffLineType.HUNK_HDR: break;                                 
+                                       case Ggit.DiffLineType.FILE_HDR: break;
+                                       default: ret+=" ";break;
+                               }
+                               ret += " " + line.get_text();
+                               return 0;
+                       });
+                       GLib.debug("%s", ret);
+               }
+               
+               
+               public void mergeMasterIntoHead()
+               {
+                       // assumes head is not master...
+                       this.loadLocalBranches();
+                       GLib.debug("head rev = %s", this.head.get_name());
+                       var head_oid =  this.repo.revparse(this.head.get_name() ).get_id()  ;
+                       //var master_oid =  this.repo.revparse("refs/heads/master" ).get_id()  ;
+                       var master_oid =  this.repo.revparse("HEAD" ).get_id()  ;
+
+                       var master_commit  = this.repo.lookup_commit(master_oid);;
+                       var head_commit = this.repo.lookup_commit(head_oid);
+                        
+               
+                       var anc_oid = this.repo.merge_base(master_commit.get_id(), head_commit.get_id());
+                       
+                       var anc_commit = this.repo.lookup_commit(anc_oid);
+                       var anc_tree = anc_commit.get_tree();
+                       
+                       var mo = new Ggit.MergeOptions();
+                       var co = new Ggit.CheckoutOptions();
+                       var the_ref = this.repo.lookup_reference_dwim("refs/heads/master");
+
+                   var ac = new Ggit.AnnotatedCommit.from_ref(this.repo, the_ref);
+                       
+                       var commits =   new Ggit.AnnotatedCommit[] { ac };
+                       
+                       this.repo.merge(commits, mo, co);
+                       
+                       var cfg = this.repo.get_config().snapshot();
+                       
+                   var sig = new Ggit.Signature.now(
+                                       cfg.get_string("user.name"),
+                                       cfg.get_string("user.email")
+                       );
+                       var new_head = this.repo.get_head();
+                       var oid = new_head.get_target();
+
+                       var ix = this.repo.get_index();
+                       ix.write();
+                       var treeoid = ix.write_tree();
+
+                       var new_tree = this.repo.lookup(treeoid,typeof (Ggit.Tree))  as   Ggit.Tree;
+                       
+                       var parent = new_head.lookup() as Ggit.Commit;
+                       Ggit.Commit[] parents =  new Ggit.Commit[] { parent };
+                       
+                       this.repo.create_commit("refs/heads/" + this.head.get_name(), sig, sig, null, "Test Merge", new_tree, parents);
+        
+               }
+               
+               
+
+               
+               
+               /*
+               public bool doMergeClose(string commit_message)
+               {
+                       this.loadLocalBranches(true);
+                       var oldbranch = this.head.get_name();
+            // going to asume this is merge trees..
+                          string [] cmd = { "merge",   "--squash",  oldbranch };
+                          this.git( cmd );
+                          cmd = { "commit",   "-a" , "-m",  commit_message };
+                          this.git( cmd );
+                          this.push();
+                          this.loadBranches(); // updates lastrev..
+               
+                      var notification = new Notify.Notification(
+                               "Merged branch %s to %s".printf(oldbranch, master),
+                               "",
+                                "dialog-information"
+                               
+                       );
+
+                       notification.set_timeout(5);
+                       notification.show();   
+               
+               
+               }
+               */
+               
+               
+               public bool is_auto_branch ()
+               {
+                       if (this.name == "gitlog") {
+                               return false;
+                       }
+                       // check remote...
+                       if (this.is_managed()) {
+                               return true;
+                       }
+                       return false;
+                       
+        
+               }
+               
+               public async void loadRemoteHeads(bool force = false)
+               {
+                   SourceFunc callback = loadRemoteHeads.callback;
+                       
+                       ThreadFunc<bool> run = () => {
+                               
+                               if (!force && this.remote_heads != null) {
+                                       return true;;
+                               }
+                               var r = this.repo.lookup_remote("origin");
+                               r.connect(Ggit.Direction.FETCH, this.callbacks, null, null);
+                               yield;
+                               this.remote_heads = r.list();
+                               
+                               foreach(var br in this.remote_heads) {
+                                       if (!br.get_name().has_prefix("refs/heads/")) {
+                                               continue;
+                                       }
+                                       
+                                       GLib.debug("Remote: name=%s  oid=%s local_oid=%s is_local=%s",
+                                               br.get_name(),
+                                               br.get_oid().to_string(),
+                                               br.get_local_oid().to_string(),
+                                               br.is_local() ? "Y" : "n"
+                                               );
+                               }
+                               Idle.add((owned) callback);
+                               return true;;
+                       };
+                       new Thread<bool>("loadRemoteHeads-" , run);
+                       yield;
+                       
+
+               }
+                
+               
+               Ggit.Branch? getBranch(string remote_name, string remote_branch_name)
+               {
+                        //GLib.debug("bn=%s",remote_branch_name);
+                        if (remote_branch_name.has_prefix("refs/remotes/")) {
+                                return null;
+                        }
+
+                        var target = remote_branch_name.replace("refs/heads/", remote_name+"/") .replace("refs/remotes/", "");
+                       if (target == "HEAD") {
+                               target = remote_name +"/master";
+                       }
+                        
+                       foreach(var br in this.branches) {
+                       //      GLib.debug("test:%s=%s", br.get_upstream().get_shorthand() , target);
+                               if ( br.get_upstream().get_shorthand() == target) {
+                                       return br;
+                               }
+                               
+                       }
+                       //GLib.debug("missing %s", remote_branch_name);                 
+                       return null;
+               
+               }
+                
+               
+               public void fetchAll()
+               {
+                       this.loadLocalBranches();
+                       this.loadRemoteHeads();
+                       
+                       // remotes probably will not work with http auth..
+                       //var ar = this.repo.list_remotes();
+                       //foreach(var n in ar) {
+                       var n = "origin"; 
+                       
+                               GLib.debug("got remote '%s'", n);
+                               var r = this.repo.lookup_remote(n);
+                               GLib.debug("connecting '%s'", r.get_url());
+                                
+                               try {
+                                       string[] h = { "a = 1" };
+                                       r.connect(Ggit.Direction.FETCH, this.callbacks, null, null);
+                                       
+                               } catch (Error e) {
+                                       GLib.debug("Got Error Message: %s", e.message);
+                                       return;
+                               }
+                               string[] far = {};
+
+                               foreach(var rh in this.remote_heads) {
+                                       if (rh.get_name().has_prefix("refs/remotes/")) {
+                                                  continue;
+                                        }
+                               
+                                       var br = this.getBranch(n, rh.get_name());
+                                
+                                       /*GLib.debug("got heads: name=%s   rev=%s  localrev=%s",
+                                               rh.get_name(), 
+                                               rh.get_oid().to_string(),
+                                               br == null ? "?": this.repo.revparse(br.get_name() ).get_id().to_string()
+                                       );
+                                       */
+                                       //var loc_oid = this.repo.revparse(br.get_name() ).get_id();
+                                       
+                                       var loc_oid = br.get_target();
+                                       
+                                       size_t ahead, behind;
+                                       this.repo.get_ahead_behind(
+                                               loc_oid,
+                                               rh.get_oid(),
+                                               out ahead,
+                                               out behind
+                                       );
+                                       
+                                       if (rh.get_oid().to_string() == this.repo.revparse(br.get_name() ).get_id().to_string()) {
+                                               continue;
+                                       }
+                                       if (ahead > 0) {
+                                               continue;
+                                       }
+                                       far += ("+refs/heads/" + br.get_name()) + ":refs/remotes/" + n + "/" + rh.get_name().replace("refs/heads/","");
+                               } 
+                               
+                               if (far.length < 1) {
+                                       GLib.debug("no fetch required.. it's uptodate");
+                                       r.disconnect();
+                                       return;
+                               }
+                               
+                               GLib.debug("getting remote specs '%s', %d", n, far.length);
+                               
+/*
+                               var far = r.get_fetch_specs();
+                               */
+                               foreach(var rs in far) {
+                                       GLib.debug("got remote spec: %s", rs);
+                                       
+                               }
+
+                               var options = new Ggit.FetchOptions();
+                               options.set_remote_callbacks(this.callbacks);
+                               //yield Async.thread(() => {
+       
+                                       r.download(far, options);
+                               //});
+                               r.disconnect();
+                               
+                               //r.download(
+                        
+               
+               }
+               
+               
+               
+               public void pushAll()
+               {
+                       
+                       this.loadLocalBranches();
+                       this.loadRemoteHeads();
+                       // remotes probably will not work with http auth..
+                       //var ar = this.repo.list_remotes();
+                       var n = "origin";
+                       
+                               GLib.debug("got remote '%s'", n);
+                               var r = this.repo.lookup_remote(n);
+                               GLib.debug("connecting '%s'", r.get_url());
+                                
+                               r.connect(Ggit.Direction.PUSH, this.callbacks, null, null);
+                               
+                               //GLib.debug("getting specs '%s'", n);
+                               /* 
+                               
+                               this.repo.add_remote_push(
+                                       "origin",
+                                       "+%s:%s".printf(head.get_shorthand(),head.get_name())
+                               );
+ */
+                               string[] far = {};
+                               var heads = r.list();
+                               foreach(var rh in heads) {
+                                       if (rh.get_name().has_prefix("refs/remotes/")) {
+                                                  continue;
+                                        }
+                               
+                                       var br = this.getBranch(n, rh.get_name());
+                                       /*
+                                       GLib.debug("got heads: name=%s   rev=%s  localrev=%s",
+                                               rh.get_name(), 
+                                               rh.get_oid().to_string(),
+                                               br == null ? "?": this.repo.revparse(br.get_name() ).get_id().to_string()
+                                       );*/
+                                       var loc_oid = this.repo.revparse(br.get_name() ).get_id();
+                                       size_t ahead, behind;
+                                       this.repo.get_ahead_behind(
+                                               loc_oid,
+                                               rh.get_oid(),
+                                               out ahead,
+                                               out behind
+                                       );
+                                       
+                                       if (rh.get_oid().to_string() == this.repo.revparse(br.get_name() ).get_id().to_string()) {
+                                               continue;
+                                       }
+                                       if (behind > 0) {
+                                               continue;
+                                       }
+                                       far += ("+refs/heads/" + br.get_name()) + ":"+ rh.get_name();
+                               }  
+                               
+                               if (far.length < 1) {
+                                       GLib.debug("no push required.. it's uptodate");
+                                       r.disconnect();
+                                       return;
+                               }
+                               /*var head = this.repo.get_head();
+                               string[] far = {};
+                               far += "+%s:%s".printf(head.get_name(),head.get_name());
+                               */
+                               foreach(var rs in far) {
+                                       GLib.debug("got remote spec: %s", rs);
+                                       
+                               }
+                                       
+                               var popts = new Ggit.PushOptions();
+                                popts.callbacks = this.callbacks;
+                               GLib.debug("Push?");
+                               r.upload(far,popts);
+                               GLib.debug("Push done?");
+                               r.disconnect();
+                               
+                               
+                               //r.download(
+                        
+               
+               }
+               
+                
+
+       }
+       
+       private class Callbacks : Ggit.RemoteCallbacks
+       {
+               //private Remote d_remote;
+               private Ggit.RemoteCallbacks? d_proxy = null;
+
+               public delegate void TransferProgress(Ggit.TransferProgress stats);
+               //private TransferProgress? d_transfer_progress;
+
+               public Callbacks( Repo repo)  //, Ggit.RemoteCallbacks? proxy) //,Remote remote, owned TransferProgress? transfer_progress)
+               {
+                       //d_remote = remote;
+                       //d_proxy = proxy;
+                       //d_transfer_progress = (owned)transfer_progress;
+               }
+
+               protected override void progress(string message)
+               {
+                       GLib.debug("progress: %s", message);
+                       if (d_proxy != null)
+                       {
+                               d_proxy.progress(message);
+                       }
+               }
+
+               protected override void transfer_progress(Ggit.TransferProgress stats)
+               {
+                       GLib.debug("transfer_progress");
+                       /*
+                       if (d_transfer_progress != null)
+                       {
+                               d_transfer_progress(stats);
+                       }
+
+                       if (d_proxy != null)
+                       {
+                               d_proxy.transfer_progress(stats);
+                       }
+                       */
+               }
+
+               protected override void update_tips(string refname, Ggit.OId a, Ggit.OId b)
+               {
+                       GLib.debug("update_tips");
+                       //d_remote.tip_updated(refname, a, b);
+
+                       if (d_proxy != null)
+                       {
+                               d_proxy.update_tips(refname, a, b);
+                       }
+               }
+
+               protected override void completion(Ggit.RemoteCompletionType type)
+               {
+                       GLib.debug("completion");
+                       if (d_proxy != null)
+                       {
+                               d_proxy.completion(type);
+                       }
+               }
+
+               protected override Ggit.Cred? credentials(string url, string? username_from_url, Ggit.Credtype allowed_types) throws Error
+               {
+                       GLib.debug("get credentials %s  UN=%s", url, username_from_url);
+                       var uri = new Soup.URI(url);
+
+                       if (uri != null) {
+                               var ret = this.netrc(uri.get_host());
+                               if (ret != null) {
+                                       return ret;
+                               }
+                               
+                               //return new Ggit.CredPlaintext(username_from_url, "test");
+                       }
+                       return null;
+                       /*var provider = d_remote.credentials_provider;
+
+                       if (provider != null)
+                       {
+                               ret = provider.credentials(url, username_from_url, allowed_types);
+                       }
+
+                       if (ret == null && d_proxy != null)
+                       {
+                               ret = d_proxy.credentials(url, username_from_url, allowed_types);
+                       }
+                       
+                       return ret;
+                       */
+               }
+               public  Ggit.Cred netrc(string domain) 
+               {
+                       string str;
+                       GLib.FileUtils.get_contents(GLib.Environment.get_home_dir() + "/.netrc", out str);
+                       var lines = str.split("\n");
+                       for(var i=0; i< lines.length; i++) {
+                               // assumes one line per entry.. if not we are buggered...
+                               //GLib.debug("got %s" , lines[i]);
+                       
+                               var bits =  Regex.split_simple ("[ \t]+", lines[i].strip());
+                               if (bits.length < 6 || bits[0] != "machine" || bits[1] != domain) {
+                                       continue;
+                               }
+                               GLib.debug("found password?");
+                               // we are gussing.... 
+                               return new Ggit.CredPlaintext(bits[3], bits[5]);
+
+                       }
+                       return null;
+
+
+               
+               
+               }
+               
+       }
+       
+       
+
+}
\ No newline at end of file