crtxcr/hs9001
1
0
Fork 0
mirror of https://github.com/quitesimpleorg/hs9001.git synced 2024-11-21 21:17:51 +01:00
Code Issues Projects Releases Wiki Activity

bash-ctrlr: Improve reverse bash search performance

Browse Source 
Remove hack that only starts searching when two chars have been entered

Improve performance by adding LIMIT clause instead.
This commit is contained in:
Albert S. 2021-08-19 21:30:04 +02:00
parent 1a6c75cea9
commit 3a6a1b2aa9
2 changed files with 26 additions and 15 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

22
history.go
View File

@ -12,16 +12,15 @@ type history struct {
}
func (h *history) GetHistoryByPrefix(prefix string) (ph []string) {
/* Hack for performance reasons */
if len(prefix) < 2 {
return
}
opts := searchopts{}
opts.order = "DESC"
o := "DESC"
opts.order = &o
lim := 100
opts.limit = &lim
cmdqry := prefix + "%"
opts.command = &cmdqry
results := search(h.conn, opts)
for e := results.Front(); e != nil; e = e.Next() {
for e := results.Back(); e != nil; e = e.Prev() {
entry, ok := e.Value.(*HistoryEntry)
if !ok {
log.Panic("Failed to retrieve entries")
@ -31,16 +30,15 @@ func (h *history) GetHistoryByPrefix(prefix string) (ph []string) {
return
}
func (h *history) GetHistoryByPattern(pattern string) (ph []string, pos []int) {
/* Hack for performance reasons */
if len(pattern) < 2 {
return
}
opts := searchopts{}
opts.order = "DESC"
o := "DESC"
opts.order = &o
lim := 100
opts.limit = &lim
cmdqry := "%" + pattern + "%"
opts.command = &cmdqry
results := search(h.conn, opts)
for e := results.Front(); e != nil; e = e.Next() {
for e := results.Back(); e != nil; e = e.Prev() {
entry, ok := e.Value.(*HistoryEntry)
if !ok {
log.Panic("Failed to retrieve entries")

19
main.go
View File

@ -157,7 +157,8 @@ type searchopts struct {
after *time.Time
before *time.Time
retval *int
order string
order *string
limit *int
}
func search(conn *sql.DB, opts searchopts) list.List {
@ -188,7 +189,18 @@ func search(conn *sql.DB, opts searchopts) list.List {
args = append(args, opts.retval)
}
sb.WriteString("ORDER BY timestamp ")
sb.WriteString("ASC ")
if opts.order != nil {
sb.WriteString(*opts.order)
sb.WriteRune(' ')
} else {
sb.WriteString("ASC ")
}
if opts.limit != nil {
sb.WriteString("LIMIT ")
sb.WriteString(strconv.Itoa(*opts.limit))
sb.WriteRune(' ')
}
queryStmt := sb.String()
@ -353,7 +365,8 @@ func main() {
q := strings.Join(args, " ")
opts := searchopts{}
opts.order = "ASC"
o := "ASC"
opts.order = &o
if q != "" {
cmd := "%" + q + "%"
opts.command = &cmd