/
versionbump.go
104 lines (90 loc) · 2.47 KB
/
versionbump.go
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package main
import (
"flag"
"fmt"
"go/ast"
"go/format"
"go/parser"
"go/token"
"os"
"path/filepath"
"strconv"
semver "github.com/Masterminds/semver/v3"
)
func bumpVersion(fileName, varName, part string) (string, string, error) {
absPath, err := filepath.Abs(fileName)
if err != nil {
return "", "", fmt.Errorf("unable to get absolute path: %v", err)
}
fset := token.NewFileSet()
node, err := parser.ParseFile(fset, absPath, nil, parser.ParseComments)
if err != nil {
return "", "", fmt.Errorf("could not parse file: %w", err)
}
var oldVersion, newVersion string
ast.Inspect(node, func(n ast.Node) bool {
if v, ok := n.(*ast.GenDecl); ok {
for _, spec := range v.Specs {
if s, ok := spec.(*ast.ValueSpec); ok {
for idx, id := range s.Names {
if id.Name == varName {
oldVersion, _ = strconv.Unquote(s.Values[idx].(*ast.BasicLit).Value)
v, err := semver.NewVersion(oldVersion)
if err != nil || v.String() == "" {
return false
}
var vInc func() semver.Version
switch part {
case "major":
vInc = v.IncMajor
case "minor":
vInc = v.IncMinor
case "", "patch":
vInc = v.IncPatch
default:
return false
}
newVersion = "v" + vInc().String()
s.Values[idx].(*ast.BasicLit).Value = fmt.Sprintf("`%s`", newVersion)
return false
}
}
}
}
}
return true
})
if newVersion == "" {
return oldVersion, newVersion, fmt.Errorf("failed to update the version")
}
f, err := os.OpenFile(fileName, os.O_RDWR, 0666)
if err != nil {
return oldVersion, newVersion, fmt.Errorf("could not open file: %w", err)
}
defer f.Close()
if err := format.Node(f, fset, node); err != nil {
return oldVersion, newVersion, fmt.Errorf("could not write to file: %w", err)
}
return oldVersion, newVersion, nil
}
func main() {
var (
fileName string
varName string
part string
)
flag.StringVar(&fileName, "file", "", "Go source file to parse")
flag.StringVar(&varName, "var", "", "Variable to update")
flag.StringVar(&part, "part", "patch", "Version part to increment (major, minor, patch)")
flag.Parse()
if fileName == "" || varName == "" {
fmt.Println("Error: Both -file and -var are required")
os.Exit(1)
}
oldVersion, newVersion, err := bumpVersion(fileName, varName, part)
if err != nil {
fmt.Printf("Error bumping version: %v\n", err)
os.Exit(1)
}
fmt.Printf("Bump from %s to %s\n", oldVersion, newVersion)
}