support git flow when colouring commits

pkg/commands/git.go

@@ -267,6 +267,10 @@ func (c *GitCommand) NewBranch(name string) error {
 	return c.OSCommand.RunCommand(fmt.Sprintf("git checkout -b %s", name))
 }
 
+func (c *GitCommand) CurrentBranchName() (string, error) {
+	return c.OSCommand.RunCommandWithOutput("git symbolic-ref --short HEAD")
+}
+
 // DeleteBranch delete branch
 func (c *GitCommand) DeleteBranch(branch string, force bool) error {
 	command := "git branch -d"
@@ -460,17 +464,27 @@ func (c *GitCommand) GetBranchGraph(branchName string) (string, error) {
 	return c.OSCommand.RunCommandWithOutput(fmt.Sprintf("git log --graph --color --abbrev-commit --decorate --date=relative --pretty=medium -100 %s", branchName))
 }
 
-func (c *GitCommand) getMergeBase() string {
-	output, err := c.OSCommand.RunCommandWithOutput("git merge-base HEAD master") // TODO: support develop as well
+func (c *GitCommand) getMergeBase() (string, error) {
+	currentBranch, err := c.CurrentBranchName()
 	if err != nil {
-		c.Log.Error("Could not get merge base")
-		return ""
+		return "", err
 	}
-	return output
+
+	baseBranch := "master"
+	if strings.HasPrefix(currentBranch, "feature/") {
+		baseBranch = "develop"
+	}
+
+	output, err := c.OSCommand.RunCommandWithOutput(fmt.Sprintf("git merge-base HEAD %s", baseBranch))
+	if err != nil {
+		// swallowing error because it's not a big deal; probably because there are no commits yet
+		c.Log.Error(err)
+	}
+	return output, nil
 }
 
 // GetCommits obtains the commits of the current branch
-func (c *GitCommand) GetCommits() []*Commit {
+func (c *GitCommand) GetCommits() ([]*Commit, error) {
 	pushables := c.GetCommitsToPush()
 	log := c.GetLog()
 
@@ -488,14 +502,16 @@ func (c *GitCommand) GetCommits() []*Commit {
 			DisplayString: strings.Join(splitLine, " "),
 		}
 	}
-	commits = c.setCommitMergedStatuses(commits)
-	return commits
+	return c.setCommitMergedStatuses(commits)
 }
 
-func (c *GitCommand) setCommitMergedStatuses(commits []*Commit) []*Commit {
-	ancestor := c.getMergeBase()
+func (c *GitCommand) setCommitMergedStatuses(commits []*Commit) ([]*Commit, error) {
+	ancestor, err := c.getMergeBase()
+	if err != nil {
+		return nil, err
+	}
 	if ancestor == "" {
-		return commits
+		return commits, nil
 	}
 	passedAncestor := false
 	for i, commit := range commits {
@@ -504,7 +520,7 @@ func (c *GitCommand) setCommitMergedStatuses(commits []*Commit) []*Commit {
 		}
 		commits[i].Merged = passedAncestor
 	}
-	return commits
+	return commits, nil
 }
 
 // GetLog gets the git log (currently limited to 30 commits for performance

pkg/commands/git_test.go

@@ -1484,7 +1484,7 @@ func TestGitCommandGetCommits(t *testing.T) {
 	type scenario struct {
 		testName string
 		command  func(string, ...string) *exec.Cmd
-		test     func([]*Commit)
+		test     func([]*Commit, error)
 	}
 
 	scenarios := []scenario{
@@ -1500,11 +1500,18 @@ func TestGitCommandGetCommits(t *testing.T) {
 				case "log":
 					assert.EqualValues(t, []string{"log", "--oneline", "-30"}, args)
 					return exec.Command("echo")
+				case "merge-base":
+					assert.EqualValues(t, []string{"merge-base", "HEAD", "master"}, args)
+					return exec.Command("test")
+				case "symbolic-ref":
+					assert.EqualValues(t, []string{"symbolic-ref", "--short", "HEAD"}, args)
+					return exec.Command("echo", "master")
 				}
 
 				return nil
 			},
-			func(commits []*Commit) {
+			func(commits []*Commit, err error) {
+				assert.NoError(t, err)
 				assert.Len(t, commits, 0)
 			},
 		},
@@ -1520,23 +1527,32 @@ func TestGitCommandGetCommits(t *testing.T) {
 				case "log":
 					assert.EqualValues(t, []string{"log", "--oneline", "-30"}, args)
 					return exec.Command("echo", "8a2bb0e commit 1\n78976bc commit 2")
+				case "merge-base":
+					assert.EqualValues(t, []string{"merge-base", "HEAD", "master"}, args)
+					return exec.Command("echo", "78976bc")
+				case "symbolic-ref":
+					assert.EqualValues(t, []string{"symbolic-ref", "--short", "HEAD"}, args)
+					return exec.Command("echo", "master")
 				}
 
 				return nil
 			},
-			func(commits []*Commit) {
+			func(commits []*Commit, err error) {
+				assert.NoError(t, err)
 				assert.Len(t, commits, 2)
 				assert.EqualValues(t, []*Commit{
 					{
 						Sha:           "8a2bb0e",
 						Name:          "commit 1",
 						Pushed:        true,
+						Merged:        false,
 						DisplayString: "8a2bb0e commit 1",
 					},
 					{
 						Sha:           "78976bc",
 						Name:          "commit 2",
 						Pushed:        false,
+						Merged:        true,
 						DisplayString: "78976bc commit 2",
 					},
 				}, commits)

pkg/gui/commits_panel.go

@@ -11,10 +11,15 @@ import (
 
 func (gui *Gui) refreshCommits(g *gocui.Gui) error {
 	g.Update(func(*gocui.Gui) error {
-		gui.State.Commits = gui.GitCommand.GetCommits()
+		commits, err := gui.GitCommand.GetCommits()
+		if err != nil {
+			return err
+		}
+
+		gui.State.Commits = commits
 		v, err := g.View("commits")
 		if err != nil {
-			panic(err)
+			return err
 		}
 
 		v.Clear()