b655b29ad9
- Created migrations/ subdirectory with 14 individual migration files - Reduced migrations.go from 680 to 98 lines (orchestration only) - Updated test imports to use migrations package - Updated MULTI_REPO_HYDRATION.md documentation - All tests passing
67 lines
1.6 KiB
Go
67 lines
1.6 KiB
Go
package migrations
|
|
|
|
import (
|
|
"database/sql"
|
|
"fmt"
|
|
"strings"
|
|
)
|
|
|
|
func MigrateExternalRefUnique(db *sql.DB) error {
|
|
var hasConstraint bool
|
|
err := db.QueryRow(`
|
|
SELECT COUNT(*) > 0
|
|
FROM sqlite_master
|
|
WHERE type = 'index'
|
|
AND name = 'idx_issues_external_ref_unique'
|
|
`).Scan(&hasConstraint)
|
|
if err != nil {
|
|
return fmt.Errorf("failed to check for UNIQUE constraint: %w", err)
|
|
}
|
|
|
|
if hasConstraint {
|
|
return nil
|
|
}
|
|
|
|
existingDuplicates, err := findExternalRefDuplicates(db)
|
|
if err != nil {
|
|
return fmt.Errorf("failed to check for duplicate external_ref values: %w", err)
|
|
}
|
|
|
|
if len(existingDuplicates) > 0 {
|
|
return fmt.Errorf("cannot add UNIQUE constraint: found %d duplicate external_ref values (resolve with 'bd duplicates' or manually)", len(existingDuplicates))
|
|
}
|
|
|
|
_, err = db.Exec(`CREATE UNIQUE INDEX IF NOT EXISTS idx_issues_external_ref_unique ON issues(external_ref) WHERE external_ref IS NOT NULL`)
|
|
if err != nil {
|
|
return fmt.Errorf("failed to create UNIQUE index on external_ref: %w", err)
|
|
}
|
|
|
|
return nil
|
|
}
|
|
|
|
func findExternalRefDuplicates(db *sql.DB) (map[string][]string, error) {
|
|
rows, err := db.Query(`
|
|
SELECT external_ref, GROUP_CONCAT(id, ',') as ids
|
|
FROM issues
|
|
WHERE external_ref IS NOT NULL
|
|
GROUP BY external_ref
|
|
HAVING COUNT(*) > 1
|
|
`)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
defer rows.Close()
|
|
|
|
duplicates := make(map[string][]string)
|
|
for rows.Next() {
|
|
var externalRef, idsCSV string
|
|
if err := rows.Scan(&externalRef, &idsCSV); err != nil {
|
|
return nil, err
|
|
}
|
|
ids := strings.Split(idsCSV, ",")
|
|
duplicates[externalRef] = ids
|
|
}
|
|
|
|
return duplicates, rows.Err()
|
|
}
|