From baf58c12341b79d1df348f8b5e5f0e3d84edc0e6 Mon Sep 17 00:00:00 2001
From: Alex S <alex.strizhakov@gmail.com>
Date: Sat, 15 Jun 2019 12:02:21 +0800
Subject: [PATCH 1/4] version generation

---
 mix.exs | 20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/mix.exs b/mix.exs
index a38ea590a..3e3a21e42 100644
--- a/mix.exs
+++ b/mix.exs
@@ -176,7 +176,9 @@ defp version(version) do
            ahead <- String.replace(describe, tag, "") do
         {String.replace_prefix(tag, "v", ""), if(ahead != "", do: String.trim(ahead))}
       else
-        _ -> {nil, nil}
+        _ ->
+          {commit_hash, 0} = System.cmd("git", ["rev-parse", "--short", "HEAD"])
+          {nil, "-g" <> String.trim(commit_hash)}
       end
 
     if git_tag && version != git_tag do
@@ -203,8 +205,18 @@ defp version(version) do
             string -> "+" <> string
           end).()
 
-    [version, git_pre_release, build]
-    |> Enum.filter(fn string -> string && string != "" end)
-    |> Enum.join()
+    branch_name =
+      with {branch_name, 0} <- System.cmd("git", ["rev-parse", "--abbrev-ref", "HEAD"]),
+           true <- branch_name != "master" do
+        "-" <> String.trim(branch_name)
+      end
+
+    full_version =
+      [version, git_pre_release, branch_name, build]
+      |> Enum.filter(fn string -> string && string != "" end)
+      |> Enum.join()
+
+    Mix.shell().info("Project version: #{full_version}")
+    full_version
   end
 end

From 501705438f3223363312cc955a8e7b06722a1265 Mon Sep 17 00:00:00 2001
From: Alex S <alex.strizhakov@gmail.com>
Date: Sat, 15 Jun 2019 16:24:49 +0800
Subject: [PATCH 2/4] little fix

---
 mix.exs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mix.exs b/mix.exs
index 3e3a21e42..f82ae5243 100644
--- a/mix.exs
+++ b/mix.exs
@@ -178,7 +178,7 @@ defp version(version) do
       else
         _ ->
           {commit_hash, 0} = System.cmd("git", ["rev-parse", "--short", "HEAD"])
-          {nil, "-g" <> String.trim(commit_hash)}
+          {nil, "-0-g" <> String.trim(commit_hash)}
       end
 
     if git_tag && version != git_tag do

From e02f22d7790865be3f4d0b3d709d707c020a9ab7 Mon Sep 17 00:00:00 2001
From: Alex S <alex.strizhakov@gmail.com>
Date: Sat, 15 Jun 2019 16:36:13 +0800
Subject: [PATCH 3/4] bugfix

---
 mix.exs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/mix.exs b/mix.exs
index f82ae5243..a52debc91 100644
--- a/mix.exs
+++ b/mix.exs
@@ -208,7 +208,11 @@ defp version(version) do
     branch_name =
       with {branch_name, 0} <- System.cmd("git", ["rev-parse", "--abbrev-ref", "HEAD"]),
            true <- branch_name != "master" do
-        "-" <> String.trim(branch_name)
+        branch_name =
+          String.trim(branch_name)
+          |> String.replace(~r/\W+/, "-")
+
+        "-" <> branch_name
       end
 
     full_version =

From 451593f45e517db5ef81af0d3ec94c206a5e3bcd Mon Sep 17 00:00:00 2001
From: Alex S <alex.strizhakov@gmail.com>
Date: Sun, 16 Jun 2019 11:48:15 +0800
Subject: [PATCH 4/4] no print version to the shell

---
 mix.exs | 10 +++-------
 1 file changed, 3 insertions(+), 7 deletions(-)

diff --git a/mix.exs b/mix.exs
index a52debc91..93f2d8476 100644
--- a/mix.exs
+++ b/mix.exs
@@ -215,12 +215,8 @@ defp version(version) do
         "-" <> branch_name
       end
 
-    full_version =
-      [version, git_pre_release, branch_name, build]
-      |> Enum.filter(fn string -> string && string != "" end)
-      |> Enum.join()
-
-    Mix.shell().info("Project version: #{full_version}")
-    full_version
+    [version, git_pre_release, branch_name, build]
+    |> Enum.filter(fn string -> string && string != "" end)
+    |> Enum.join()
   end
 end