75 lines
1.7 KiB
Go
75 lines
1.7 KiB
Go
package datastore
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import (
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"strconv"
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"strings"
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"github.com/drone/drone/model"
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"github.com/russross/meddler"
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)
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// rebind is a helper function that changes the sql
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// bind type from ? to $ for postgres queries.
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func rebind(query string) string {
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if meddler.Default != meddler.PostgreSQL {
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return query
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}
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qb := []byte(query)
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// Add space enough for 5 params before we have to allocate
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rqb := make([]byte, 0, len(qb)+5)
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j := 1
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for _, b := range qb {
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switch b {
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case '?':
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rqb = append(rqb, '$')
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for _, b := range strconv.Itoa(j) {
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rqb = append(rqb, byte(b))
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}
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j++
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case '`':
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rqb = append(rqb, ' ')
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default:
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rqb = append(rqb, b)
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}
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}
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return string(rqb)
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}
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// helper function that converts a simple repsitory list
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// to a sql IN statment.
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func toList(listof []*model.RepoLite) (string, []interface{}) {
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var size = len(listof)
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switch {
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case meddler.Default == meddler.SQLite && size > 999:
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size = 999
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listof = listof[:999]
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case size > 15000:
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size = 15000
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listof = listof[:15000]
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}
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var qs = make([]string, size, size)
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var in = make([]interface{}, size, size)
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for i, repo := range listof {
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qs[i] = "?"
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in[i] = repo.FullName
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}
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return strings.Join(qs, ","), in
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}
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// helper function that converts a simple repository list
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// to a sql IN statement compatible with postgres.
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func toListPostgres(listof []*model.RepoLite) (string, []interface{}) {
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var size = len(listof)
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if size > 15000 {
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size = 15000
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listof = listof[:15000]
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}
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var qs = make([]string, size, size)
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var in = make([]interface{}, size, size)
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for i, repo := range listof {
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qs[i] = "$" + strconv.Itoa(i+1)
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in[i] = repo.FullName
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}
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return strings.Join(qs, ","), in
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}
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