Add convenience builder for git commands

pkg/commands/git_commands/git_command_builder_test.go

@@ -0,0 +1,56 @@
+package git_commands
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestGitCommandBuilder(t *testing.T) {
+	scenarios := []struct {
+		input    string
+		expected string
+	}{
+		{
+			input: NewGitCmd("push").
+				Arg("--force-with-lease").
+				Arg("--set-upstream").
+				Arg("origin").
+				Arg("master").
+				ToString(),
+			expected: "git push --force-with-lease --set-upstream origin master",
+		},
+		{
+			input:    NewGitCmd("push").ArgIf(true, "--test").ToString(),
+			expected: "git push --test",
+		},
+		{
+			input:    NewGitCmd("push").ArgIf(false, "--test").ToString(),
+			expected: "git push",
+		},
+		{
+			input:    NewGitCmd("push").ArgIfElse(true, "-b", "-a").ToString(),
+			expected: "git push -b",
+		},
+		{
+			input:    NewGitCmd("push").ArgIfElse(false, "-a", "-b").ToString(),
+			expected: "git push -b",
+		},
+		{
+			input:    NewGitCmd("push").Arg("-a", "-b").ToString(),
+			expected: "git push -a -b",
+		},
+		{
+			input:    NewGitCmd("push").Config("user.name=foo").Config("user.email=bar").ToString(),
+			expected: "git -c user.email=bar -c user.name=foo push",
+		},
+		{
+			input:    NewGitCmd("push").RepoPath("a/b/c").ToString(),
+			expected: "git -C a/b/c push",
+		},
+	}
+
+	for _, s := range scenarios {
+		assert.Equal(t, s.input, s.expected)
+	}
+}