Go and Bazel both working ... remove Gazelle for now because it does …

…weird stuff with the paths - manually editing the build files makes both go cmdline tool and bazel work with the import paths I want ... will revisit, see bazel-contrib/rules_go#870

src/pango/lib/mathutil/BUILD.bazel

@@ -0,0 +1,8 @@
+load("@io_bazel_rules_go//go:def.bzl", "go_library")
+
+go_library(
+    name = "go_default_library",
+    srcs = ["multiples.go"],
+    importpath = "pango/lib/mathutil",
+    visibility = ["//visibility:public"],
+)

src/pango/lib/mathutil/multiples.go

@@ -0,0 +1,13 @@
+package mathutil
+
+import "fmt"
+
+// PrintMultiplesOf prints the multiples of a given integer between
+// low and high
+func PrintMultiplesOf(of int, low int, high int) {
+  for i := low; i <= high; i++ {
+    if i%of == 0 {
+      fmt.Println(i)
+    }
+  }
+}

src/pango/lib/stringutil/BUILD.bazel

@@ -1,12 +1,5 @@
 load("@io_bazel_rules_go//go:def.bzl", "go_library", "go_test")
 
-go_library(
-    name = "stringutil",
-    srcs = ["reverse.go"],
-    importpath = "lib/stringutil",
-    visibility = ["//visibility:public"],
-)
-
 go_test(
     name = "go_default_test",
     srcs = ["reverse_test.go"],
@@ -16,6 +9,6 @@ go_test(
 go_library(
     name = "go_default_library",
     srcs = ["reverse.go"],
-    importpath = "pango/src/pango/lib/stringutil",
+    importpath = "pango/lib/stringutil",
     visibility = ["//visibility:public"],
 )

src/pango/lib/stringutil/reverse_test.go

@@ -1,6 +1,8 @@
 package stringutil
 
-import "testing"
+import (
+  "testing"
+)
 
 func TestReverse(t *testing.T) {
   cases := []struct {

src/pango/services/hello/BUILD.bazel

@@ -3,9 +3,13 @@ load("@io_bazel_rules_go//go:def.bzl", "go_binary", "go_library")
 go_library(
     name = "go_default_library",
     srcs = ["hello.go"],
-    importpath = "pango/src/pango/services/hello",
+    importpath = "pango/services/hello",
     visibility = ["//visibility:private"],
-    deps = ["//src/pango/lib/stringutil"],
+    deps = [
+        # deps are bazel paths not go import paths ...
+        "//src/pango/lib/mathutil:go_default_library",
+        "//src/pango/lib/stringutil:go_default_library",
+    ],
 )
 
 go_binary(

src/pango/services/hello/hello.go

@@ -3,9 +3,11 @@ package main
 
 import (
 	"fmt"
-	"lib/stringutil"
+	"pango/lib/stringutil"
+	"pango/lib/mathutil"
 )
 
 func main() {
+	mathutil.PrintMultiplesOf(5, 10, 100)
 	fmt.Printf(stringutil.Reverse("\n???Hello, world.!!!"))
 }