2024-11-29 08:30:19 -06:00
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package main
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import (
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"fmt"
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"io"
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"os"
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)
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func main() {
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f, _ := os.OpenFile("test.sort.pb.go", os.O_WRONLY|os.O_CREATE, 0600)
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2024-11-29 09:14:30 -06:00
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header(f, "testautogen")
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syncLock(f, "gitTagslock")
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iterTop(f, "GitTag")
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2024-11-29 09:36:54 -06:00
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iterNext(f, "GitTag")
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2024-11-29 08:30:19 -06:00
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}
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func header(w io.Writer, name string) {
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2024-11-29 08:54:49 -06:00
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fmt.Fprintln(w, "package "+name)
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2024-11-29 08:30:19 -06:00
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fmt.Fprintln(w, "")
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fmt.Fprintln(w, "// this is becoming a standard format")
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fmt.Fprintln(w, "// todo: autogenerate this from the .proto file?")
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fmt.Fprintln(w, "")
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fmt.Fprintln(w, "import (")
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fmt.Fprintln(w, " \"fmt\"")
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fmt.Fprintln(w, " \"os\"")
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fmt.Fprintln(w, " \"sort\"")
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fmt.Fprintln(w, " \"sync\"")
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fmt.Fprintln(w, ")")
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fmt.Fprintln(w, "")
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2024-11-29 08:33:47 -06:00
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}
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func syncLock(w io.Writer, name string) {
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2024-11-29 08:30:19 -06:00
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fmt.Fprintln(w, "// bad global lock until I figure out some other plan")
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2024-11-29 08:54:49 -06:00
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fmt.Fprintln(w, "var "+name+" sync.RWMutex")
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2024-11-29 08:30:19 -06:00
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fmt.Fprintln(w, "")
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}
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2024-11-29 08:54:49 -06:00
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func iterTop(w io.Writer, name string) {
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fmt.Fprintln(w, "type "+name+"Iterator struct {")
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fmt.Fprintln(w, " sync.RWMutex")
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fmt.Fprintln(w, "")
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fmt.Fprintln(w, " packs []*"+name)
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fmt.Fprintln(w, " index int")
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fmt.Fprintln(w, "}")
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fmt.Fprintln(w, "")
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fmt.Fprintln(w, "// New"+name+"Iterator initializes a new iterator.")
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fmt.Fprintln(w, "func New"+name+"Iterator(packs []*"+name+") *"+name+"Iterator {")
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fmt.Fprintln(w, " return &"+name+"Iterator{packs: packs}")
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fmt.Fprintln(w, "}")
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fmt.Fprintln(w, "")
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fmt.Fprintln(w, "// Scan moves to the next element and returns false if there are no more packs.")
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2024-11-29 09:36:54 -06:00
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fmt.Fprintln(w, "// Use Scan() in a loop, similar to a while loop")
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fmt.Fprintln(w, "//")
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fmt.Fprintln(w, "// for iterator.Scan() ")
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fmt.Fprintln(w, "// d := iterator.Next(")
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fmt.Fprintln(w, "// fmt.Println(\"found UUID:\", d.Uuid")
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fmt.Fprintln(w, "// }")
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2024-11-29 08:54:49 -06:00
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fmt.Fprintln(w, "func (it *"+name+"Iterator) Scan() bool {")
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fmt.Fprintln(w, " if it.index >= len(it.packs) {")
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fmt.Fprintln(w, " return false")
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fmt.Fprintln(w, " }")
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fmt.Fprintln(w, " it.index++")
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fmt.Fprintln(w, " return true")
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fmt.Fprintln(w, "}")
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2024-11-29 09:36:54 -06:00
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fmt.Fprintln(w, "")
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}
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func iterNext(w io.Writer, name string) {
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fmt.Fprintln(w, "// Next() returns the next thing in the array")
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fmt.Fprintln(w, "func (it *" + name + "Iterator) Next() *" + name + " {")
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fmt.Fprintln(w, " if it.packs[it.index-1] == nil {")
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fmt.Fprintln(w, " for i, d := range it.packs {")
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fmt.Fprintln(w, " fmt.Println(\"i =\", i, d)")
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fmt.Fprintln(w, " }")
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fmt.Fprintln(w, " fmt.Println(\"protobuf autogenpb sort error len =\", len(it.packs))")
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fmt.Fprintln(w, " fmt.Println(\"protobuf autogenpb sort error next == nil\", it.index, it.index-1)")
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fmt.Fprintln(w, " os.Exit(-1)")
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fmt.Fprintln(w, " }")
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fmt.Fprintln(w, " return it.packs[it.index-1]")
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fmt.Fprintln(w, "}")
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fmt.Fprintln(w, "")
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}
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/*
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func (r *Repos) All() *RepoIterator {
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repoPointers := r.selectAllRepo()
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iterator := NewRepoIterator(repoPointers)
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return iterator
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}
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func (r *Repos) SortByPath() *RepoIterator {
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packs := r.selectAllRepo()
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sort.Sort(RepoByPath(packs))
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iterator := NewRepoIterator(packs)
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return iterator
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}
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func (all *Repos) Len() int {
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repolock.RLock()
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defer repolock.RUnlock()
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return len(all.Repos)
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}
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type RepoByPath []*Repo
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func (a RepoByPath) Len() int { return len(a) }
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func (a RepoByPath) Less(i, j int) bool { return a[i].GoPath < a[j].GoPath }
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func (a RepoByPath) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
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// safely returns a slice of pointers to the Repo protobufs
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func (all *Repos) selectAllRepo() []*Repo {
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repolock.RLock()
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defer repolock.RUnlock()
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// Create a new slice to hold pointers to each Repo
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var aRepos []*Repo
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aRepos = make([]*Repo, len(all.Repos))
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for i, p := range all.Repos {
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aRepos[i] = p // Copy pointers for safe iteration
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}
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return aRepos
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2024-11-29 08:54:49 -06:00
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}
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2024-11-29 09:36:54 -06:00
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*/
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