hello world! 🌸

.gitignore

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+# ---> Go
+# If you prefer the allow list template instead of the deny list, see community template:
+# https://github.com/github/gitignore/blob/main/community/Golang/Go.AllowList.gitignore
+#
+# Binaries for programs and plugins
+*.exe
+*.exe~
+*.dll
+*.so
+*.dylib
+
+# Test binary, built with `go test -c`
+*.test
+
+# Output of the go coverage tool, specifically when used with LiteIDE
+*.out
+
+# Dependency directories (remove the comment below to include it)
+# vendor/
+
+# Go workspace file
+go.work
+go.work.sum
+
+# env file
+.env
+
+.idea/material_theme_project_new.xml
+build/**/*
+.idea/workspace.xml
+.idea/vcs.xml

.idea/gopack-internal.iml

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+<?xml version="1.0" encoding="UTF-8"?>
+<module type="WEB_MODULE" version="4">
+  <component name="Go" enabled="true" />
+  <component name="NewModuleRootManager">
+    <content url="file://$MODULE_DIR$" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+  </component>
+</module>

.idea/inspectionProfiles/Project_Default.xml

@@ -0,0 +1,15 @@
+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+    <inspection_tool class="GoErrorStringFormat" enabled="false" level="WEAK WARNING" enabled_by_default="false" />
+    <inspection_tool class="GoSwitchMissingCasesForIotaConsts" enabled="true" level="WEAK WARNING" enabled_by_default="true" editorAttributes="INFO_ATTRIBUTES" />
+    <inspection_tool class="GoUnhandledErrorResult" enabled="true" level="WEAK WARNING" enabled_by_default="true" editorAttributes="INFO_ATTRIBUTES" />
+    <inspection_tool class="GrazieInspection" enabled="false" level="GRAMMAR_ERROR" enabled_by_default="false" />
+    <inspection_tool class="LanguageDetectionInspection" enabled="false" level="WARNING" enabled_by_default="false" />
+    <inspection_tool class="SpellCheckingInspection" enabled="false" level="TYPO" enabled_by_default="false">
+      <option name="processCode" value="true" />
+      <option name="processLiterals" value="true" />
+      <option name="processComments" value="true" />
+    </inspection_tool>
+  </profile>
+</component>

.idea/modules.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/.idea/gopack-internal.iml" filepath="$PROJECT_DIR$/.idea/gopack-internal.iml" />
+    </modules>
+  </component>
+</project>

README.md

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+# gopack
+
+internal utility to create zip files from go module directories
+
+## usage
+
+```
+gopack PACKAGE-NAME VERSION PATH [COMMA-SEPARATED-EXCLUSION-GLOBS]
+```

go.mod

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+module rockfic.com/gopack
+
+go 1.23.0
+
+require (
+	github.com/bmatcuk/doublestar/v4 v4.6.1 // indirect
+	golang.org/x/mod v0.21.0 // indirect
+)

go.sum

@@ -0,0 +1,4 @@
+github.com/bmatcuk/doublestar/v4 v4.6.1 h1:FH9SifrbvJhnlQpztAx++wlkk70QBf0iBWDwNy7PA4I=
+github.com/bmatcuk/doublestar/v4 v4.6.1/go.mod h1:xBQ8jztBU6kakFMg+8WGxn0c6z1fTSPVIjEY1Wr7jzc=
+golang.org/x/mod v0.21.0 h1:vvrHzRwRfVKSiLrG+d4FMl/Qi4ukBCE6kZlTUkDYRT0=
+golang.org/x/mod v0.21.0/go.mod h1:6SkKJ3Xj0I0BrPOZoBy3bdMptDDU9oJrpohJ3eWZ1fY=

main.go

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+package main
+
+import (
+	"bytes"
+	"fmt"
+	"github.com/bmatcuk/doublestar/v4"
+	"golang.org/x/mod/module"
+	"golang.org/x/mod/zip"
+	"io"
+	"log"
+	"os"
+	"path"
+	"path/filepath"
+	"slices"
+	"strings"
+)
+
+type dirFile struct {
+	filePath, slashPath string
+	info                os.FileInfo
+}
+
+func (f dirFile) Path() string                 { return f.slashPath }
+func (f dirFile) Lstat() (os.FileInfo, error)  { return f.info, nil }
+func (f dirFile) Open() (io.ReadCloser, error) { return os.Open(f.filePath) }
+
+func parseGitignore(wd string) []string {
+	f := make([]string, 0)
+	file, err := os.ReadFile(path.Join(wd, ".gitignore"))
+	if err == nil {
+		str := bytes.NewBuffer(file).String()
+		for _, rline := range strings.Split(str, "\n") {
+			line := strings.TrimSpace(rline)
+			if line == "" || strings.HasPrefix(line, "#") || strings.HasPrefix(line, "!") {
+				continue
+			}
+			if strings.HasPrefix(line, "*") {
+				f = append(f, line)
+				f = append(f, fmt.Sprintf("**/%s", line))
+			} else if strings.HasSuffix(line, "/") {
+				f = append(f, fmt.Sprintf("%s/**", line))
+				f = append(f, fmt.Sprintf("%s/**/*", line))
+			}
+		}
+	}
+	fmt.Println(f)
+	return f
+}
+
+func doWalk(wd string, exGlobs []string) []zip.File {
+	f := make([]zip.File, 0)
+	filepath.Walk(wd, func(p string, info os.FileInfo, err error) error {
+		slashed := filepath.ToSlash(p)
+		rel, _ := filepath.Rel(wd, slashed)
+		rel = filepath.ToSlash(rel)
+		if info.IsDir() {
+			if p == wd {
+				return nil
+			}
+			switch filepath.Base(p) {
+			case ".git", ".bzr", ".svn", ".hg":
+				return filepath.SkipDir
+			}
+			if goModInfo, err := os.Lstat(filepath.Join(p, "go.mod")); err == nil && !goModInfo.IsDir() {
+				return filepath.SkipDir
+			}
+			for _, pat := range exGlobs {
+
+				ok, _ := doublestar.Match(pat, rel)
+				if ok {
+					return filepath.SkipDir
+				}
+			}
+
+			return nil
+		}
+		if !info.Mode().IsRegular() {
+			return nil
+		}
+
+		ok, err := doublestar.Match(fmt.Sprintf("{%s}", strings.Join(exGlobs, ",")), rel)
+		if err != nil {
+			log.Fatal(err)
+		}
+		if !ok {
+			if !slices.Contains(maps(f, func(t zip.File) string {
+				return t.Path()
+			}), slashed) {
+				f = append(f, dirFile{
+					filePath:  p,
+					info:      info,
+					slashPath: rel,
+				})
+			}
+		}
+
+		return nil
+	})
+
+	return f
+}
+
+func maps[T any, R any](slice []T, fn func(t T) R) []R {
+	ret := make([]R, 0)
+	for _, e := range slice {
+		ret = append(ret, fn(e))
+	}
+	return ret
+}
+
+func main() {
+	args := os.Args[1:]
+	if len(args) < 3 {
+		log.Fatal("usage: PACKAGE-NAME VERSION PATH [EXCLUSION-GLOBS...]")
+	}
+	version := args[1]
+	if !strings.HasPrefix(version, "v") {
+		version = fmt.Sprintf("v%s", version)
+	}
+
+	var absPath string
+	absPath, _ = filepath.Abs(args[2])
+	excludeGlobs := make([]string, 0)
+	excludeGlobs = append(excludeGlobs, ".*/*", "build/**")
+	excludeGlobs = append(excludeGlobs, parseGitignore(absPath)...)
+	if len(args) >= 4 {
+		excludeGlobs = append(excludeGlobs, args[3:]...)
+	}
+
+	buildFile := fmt.Sprintf(filepath.Join(absPath, "build", "%s.zip"), version)
+	walked := doWalk(absPath, excludeGlobs)
+	_ = os.Remove(buildFile)
+	f, _ := os.Create(buildFile)
+	err := zip.Create(f, module.Version{
+		Version: version,
+		Path:    args[0],
+	}, walked)
+	if err != nil {
+		log.Fatal(err)
+	}
+}