From 6e94482a232cfd92a078b90fe794642c48dc2dba Mon Sep 17 00:00:00 2001
From: Carlos Alexandro Becker <caarlos0@gmail.com>
Date: Mon, 30 Jan 2017 23:46:28 -0200
Subject: [PATCH] git status if fail

closes #108
---
 .travis.yml               |  5 +----
 pipeline/source/source.go | 37 ++++++++++++++++++++++++++++++++-----
 2 files changed, 33 insertions(+), 9 deletions(-)

diff --git a/.travis.yml b/.travis.yml
index 719bef157..6ab716011 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -4,9 +4,6 @@ install: make setup
 script:
   - make ci
 after_success:
-  - test -n "$TRAVIS_TAG" && gem install fpm
-  - git status -sb
-  - test -n "$TRAVIS_TAG" && go run main.go
-  - git status -sb
+  - test -n "$TRAVIS_TAG" && gem install fpm && go run main.go
 notifications:
   email: false
diff --git a/pipeline/source/source.go b/pipeline/source/source.go
index 1d3acb729..2caad4cdf 100644
--- a/pipeline/source/source.go
+++ b/pipeline/source/source.go
@@ -4,17 +4,28 @@
 package source
 
 import (
-	"errors"
 	"os/exec"
 
 	"github.com/goreleaser/goreleaser/context"
 )
 
 // ErrDirty happens when the repo has uncommitted/unstashed changes
-var ErrDirty = errors.New("git is currently in a dirty state, commit or stash your changes to continue")
+type ErrDirty struct {
+	status string
+}
+
+func (e ErrDirty) Error() string {
+	return "git is currently in a dirty state: " + e.status
+}
 
 // ErrWrongRef happens when the HEAD reference is different from the tag being built
-var ErrWrongRef = errors.New("current tag ref is different from HEAD ref, checkout the latest tag to continue")
+type ErrWrongRef struct {
+	status string
+}
+
+func (e ErrWrongRef) Error() string {
+	return "current tag ref is different from HEAD ref: " + e.status
+}
 
 // Pipe to make sure we are in the latest Git tag as source.
 type Pipe struct{}
@@ -29,12 +40,28 @@ func (p Pipe) Description() string {
 func (p Pipe) Run(ctx *context.Context) error {
 	cmd := exec.Command("git", "diff-index", "--quiet", "HEAD", "--")
 	if err := cmd.Run(); err != nil {
-		return ErrDirty
+		status, err := status()
+		if err != nil {
+			return err
+		}
+		return ErrDirty{status}
 	}
 
 	cmd = exec.Command("git", "describe", "--exact-match", "--tags", "--match", ctx.Git.CurrentTag)
 	if err := cmd.Run(); err != nil {
-		return ErrWrongRef
+		status, err := status()
+		if err != nil {
+			return err
+		}
+		return ErrWrongRef{status}
 	}
 	return nil
 }
+
+func status() (string, error) {
+	bts, err := exec.Command("git", "status", "-sb").CombinedOutput()
+	if err != nil {
+		return "", err
+	}
+	return "\n\n" + string(bts), nil
+}