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repo.go
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repo.go
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package repo
import (
"container/list"
"fmt"
"sort"
"strings"
"github.com/pinpt/ripsrc/ripsrc/history3/incblame"
)
type Repo map[string]map[string]*incblame.Blame
func New() Repo {
return Repo{}
}
func (s Repo) Debug() string {
res := []string{}
type KV struct {
K string
V map[string]*incblame.Blame
}
var arr []KV
for k, v := range s {
arr = append(arr, KV{k, v})
}
sort.Slice(arr, func(i, j int) bool {
a := arr[i]
b := arr[j]
return a.K < b.K
})
line := func(str string) {
res = append(res, str)
res = append(res, "\n")
}
line("")
for _, v := range arr {
commit := v.K
line("commit:" + commit)
type KV struct {
K string
V *incblame.Blame
}
var arr []KV
for k, v := range v.V {
arr = append(arr, KV{k, v})
}
sort.Slice(arr, func(i, j int) bool {
a := arr[i]
b := arr[j]
return a.K < b.K
})
for _, v := range arr {
line("commit:" + commit)
line("file:" + v.K)
line(v.V.String())
line("")
}
}
line("")
return strings.Join(res, "")
}
func (s Repo) CommitsInMemory() int {
return len(s)
}
func (s Repo) AddCommit(commitHash string) {
s[commitHash] = map[string]*incblame.Blame{}
}
func (s Repo) GetCommitMust(commitHash string) map[string]*incblame.Blame {
res, ok := s[commitHash]
if !ok {
panic(fmt.Errorf("commit not found: %v", commitHash))
}
return res
}
func (s Repo) GetFileOptional(commitHash string, filePath string) *incblame.Blame {
c, ok := s[commitHash]
if !ok {
panic(fmt.Errorf("commit not found: %v when looking for file: %v", commitHash, filePath))
}
return c[filePath]
}
func (s Repo) GetFileMust(commitHash string, filePath string) (*incblame.Blame, error) {
c, ok := s[commitHash]
if !ok {
panic(fmt.Errorf("commit not found: %v when looking for file: %v", commitHash, filePath))
}
res, ok := c[filePath]
if !ok {
return nil, fmt.Errorf("file is missing in commit. commit: %v file: %v", commitHash, filePath)
}
return res, nil
}
type Unloader struct {
repo Repo
toUnload *list.List
}
func NewUnloader(repo Repo) *Unloader {
s := &Unloader{}
s.repo = repo
s.toUnload = list.New()
return s
}
const maxCommitsInCheckpoint = 1000
func (s *Unloader) Unload(commitHash string) {
s.toUnload.PushFront(commitHash)
if s.toUnload.Len() > maxCommitsInCheckpoint {
last := s.toUnload.Back()
s.toUnload.Remove(last)
delete(s.repo, last.Value.(string))
}
}