fix: release regex tag matching (#86)

* fix: release regex tag matching

Travis will only be triggered if it matches the allowed branches.

Signed-off-by: Thulio Ferraz Assis <[email protected]>

* fix: use 'if' condition instead of 'branches'

Signed-off-by: Thulio Ferraz Assis <[email protected]>

Author: Thulio Ferraz Assis

.travis.yml

@@ -1,5 +1,4 @@
 language: go
-
 go: 1.14.x
 
 os: linux
@@ -62,6 +61,26 @@ stages:
 - test-integration
 - name: release
   if: >-
+    (repo = "kubernetes-sigs/minibroker") AND
     (tag IS present) AND
-    (branch = master) AND
-    (repo = "kubernetes-sigs/minibroker")
+    (branch ~= /^(?x)
+        v(0|[1-9][0-9]*)  # major
+        \.
+        (0|[1-9][0-9]*)  # minor
+        \.
+        (0|[1-9][0-9]*)  # patch
+        (?:
+          - # pre-release
+          (
+            (?:0|[1-9][0-9]*|[0-9]*[a-zA-Z-][0-9a-zA-Z-]*)
+            (?:\.
+              (?:0|[1-9][0-9]*|[0-9]*[a-zA-Z-][0-9a-zA-Z-]*)
+            )*
+          )
+        )?
+        # build
+        (?:\+([0-9a-zA-Z-]+
+          (?:\.[0-9a-zA-Z-]+)*
+        )
+      )?
+    $/)