diff --git a/database/schema.go b/database/schema.go new file mode 100644 index 00000000..337e2f80 --- /dev/null +++ b/database/schema.go @@ -0,0 +1,93 @@ +package database + +import ( + "context" + "database/sql" + goErrors "errors" + "fmt" + icingaSql "github.com/Icinga/go-libs/sql" + "github.com/pkg/errors" +) + +// SchemaUpgrade represents a single upgrade step. +type SchemaUpgrade struct { + // Version specifies the target version as in the schema table. + Version string + // DDL aggregates one or more .sql files' contents. + DDL []string +} + +// SchemaData summaries all available DDL for a database type. +type SchemaData struct { + // Schema aggregates one or more .sql files' contents. + Schema []string + // Upgrades aggregates all available upgrade steps in ascending order. + Upgrades []SchemaUpgrade +} + +var ErrDbTypeNotUpgradable = goErrors.New("no schema supplied for given database type") + +// AutoUpgradeSchema imports or upgrades the schema in db from schemaData. +func AutoUpgradeSchema( + ctx context.Context, db *DB, dbName, schemaTable, schemaTableVersionColumn, schemaTableTimestampColumn string, + schemaData map[string]SchemaData, +) error { + ourSchema, driverSupported := schemaData[db.DriverName()] + if !driverSupported { + return errors.Wrap(ErrDbTypeNotUpgradable, "can't upgrade schema") + } + + err := db.QueryRowContext( + ctx, db.Rebind("SELECT 1 FROM INFORMATION_SCHEMA.TABLES WHERE TABLE_SCHEMA=? AND TABLE_NAME=?"), + dbName, schemaTable, + ).Scan(new(int8)) + + switch err { + case nil: + var currentVersion string + + err := db.QueryRowContext(ctx, fmt.Sprintf( + "SELECT %s FROM %s ORDER BY %s DESC LIMIT 1", + schemaTableVersionColumn, schemaTable, schemaTableTimestampColumn, + )).Scan(¤tVersion) + if err != nil { + return errors.Wrap(err, "can't check schema version") + } + + // If there's no upgrade step to the current version, it must be the first one, so apply all upgrades. + upgrades := ourSchema.Upgrades + + for i, upgrade := range ourSchema.Upgrades { + if upgrade.Version == currentVersion { + // If there's an upgrade step to the current version, apply all subsequent ones. + upgrades = ourSchema.Upgrades[i+1:] + break + } + } + + for _, upgrade := range upgrades { + if err := importSchema(ctx, db, upgrade.DDL); err != nil { + return errors.Wrap(err, "can't upgrade schema") + } + } + + return nil + case sql.ErrNoRows: + return errors.Wrap(importSchema(ctx, db, ourSchema.Schema), "can't import schema") + default: + return errors.Wrap(err, "can't check schema existence") + } +} + +// importSchema imports one or more .sql files' contents from schema into db. +func importSchema(ctx context.Context, db *DB, schema []string) error { + for _, ddls := range schema { + for _, ddl := range icingaSql.MysqlSplitStatements(ddls) { + if _, err := db.ExecContext(ctx, ddl); err != nil { + return err + } + } + } + + return nil +} diff --git a/go.mod b/go.mod index e4269548..01c2bacd 100644 --- a/go.mod +++ b/go.mod @@ -3,6 +3,7 @@ module github.com/icinga/icinga-go-library go 1.22 require ( + github.com/Icinga/go-libs v0.0.0-20220420130327-ef58ad52edd8 github.com/creasty/defaults v1.7.0 github.com/go-sql-driver/mysql v1.8.1 github.com/goccy/go-yaml v1.11.3 diff --git a/go.sum b/go.sum index 980657db..93b15441 100644 --- a/go.sum +++ b/go.sum @@ -1,5 +1,9 @@ filippo.io/edwards25519 v1.1.0 h1:FNf4tywRC1HmFuKW5xopWpigGjJKiJSV0Cqo0cJWDaA= filippo.io/edwards25519 v1.1.0/go.mod h1:BxyFTGdWcka3PhytdK4V28tE5sGfRvvvRV7EaN4VDT4= +github.com/Icinga/go-libs v0.0.0-20220420130327-ef58ad52edd8 h1:hG4Y/LPERK9i+P8/jnYlq9PeDd9deIkwEWOIimDU3uk= +github.com/Icinga/go-libs v0.0.0-20220420130327-ef58ad52edd8/go.mod h1:xlgU55MKs/vIg1fMlAEBSrslahYayZNwjXvf3w1dvyA= +github.com/PuerkitoBio/goquery v1.5.1/go.mod h1:GsLWisAFVj4WgDibEWF4pvYnkVQBpKBKeU+7zCJoLcc= +github.com/andybalholm/cascadia v1.1.0/go.mod h1:GsXiBklL0woXo1j/WYWtSYYC4ouU9PqHO0sqidkEA4Y= github.com/bsm/ginkgo/v2 v2.12.0 h1:Ny8MWAHyOepLGlLKYmXG4IEkioBysk6GpaRTLC8zwWs= github.com/bsm/ginkgo/v2 v2.12.0/go.mod h1:SwYbGRRDovPVboqFv0tPTcG1sN61LM1Z4ARdbAV9g4c= github.com/bsm/gomega v1.27.10 h1:yeMWxP2pV2fG3FgAODIY8EiRE3dy0aeFYt4l7wh6yKA= @@ -8,6 +12,7 @@ github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs= github.com/creasty/defaults v1.7.0 h1:eNdqZvc5B509z18lD8yc212CAqJNvfT1Jq6L8WowdBA= github.com/creasty/defaults v1.7.0/go.mod h1:iGzKe6pbEHnpMPtfDXZEr0NVxWnPTjb1bbDy08fPzYM= +github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c= github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38= github.com/dgryski/go-rendezvous v0.0.0-20200823014737-9f7001d12a5f h1:lO4WD4F/rVNCu3HqELle0jiPLLBs70cWOduZpkS1E78= @@ -40,6 +45,7 @@ github.com/mattn/go-colorable v0.1.8 h1:c1ghPdyEDarC70ftn0y+A/Ee++9zz8ljHG1b13eJ github.com/mattn/go-colorable v0.1.8/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc= github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY= github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU= +github.com/mattn/go-sqlite3 v1.14.0/go.mod h1:JIl7NbARA7phWnGvh0LKTyg7S9BA+6gx71ShQilpsus= github.com/mattn/go-sqlite3 v1.14.22 h1:2gZY6PC6kBnID23Tichd1K+Z0oS6nE/XwU+Vz/5o4kU= github.com/mattn/go-sqlite3 v1.14.22/go.mod h1:Uh1q+B4BYcTPb+yiD3kU8Ct7aC0hY9fxUwlHK0RXw+Y= github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4= @@ -50,6 +56,8 @@ github.com/redis/go-redis/v9 v9.5.1 h1:H1X4D3yHPaYrkL5X06Wh6xNVM/pX0Ft4RV0vMGvLB github.com/redis/go-redis/v9 v9.5.1/go.mod h1:hdY0cQFCN4fnSYT6TkisLufl/4W5UIXyv0b/CLO2V2M= github.com/ssgreg/journald v1.0.0 h1:0YmTDPJXxcWDPba12qNMdO6TxvfkFSYpFIJ31CwmLcU= github.com/ssgreg/journald v1.0.0/go.mod h1:RUckwmTM8ghGWPslq2+ZBZzbb9/2KgjzYZ4JEP+oRt0= +github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME= +github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg= github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg= github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY= go.uber.org/goleak v1.3.0 h1:2K3zAYmnTNqV73imy9J1T3WC+gmCePx2hEGkimedGto= @@ -58,20 +66,28 @@ go.uber.org/multierr v1.10.0 h1:S0h4aNzvfcFsC3dRF1jLoaov7oRaKqRGC/pUEJ2yvPQ= go.uber.org/multierr v1.10.0/go.mod h1:20+QtiLqy0Nd6FdQB9TLXag12DsQkrbs3htMFfDN80Y= go.uber.org/zap v1.27.0 h1:aJMhYGrd5QSmlpLMr2MftRKl7t8J8PTZPA732ud/XR8= go.uber.org/zap v1.27.0/go.mod h1:GB2qFLM7cTU87MWRP2mPIjqfIDnGu+VIO4V/SdhGo2E= +golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w= golang.org/x/crypto v0.7.0 h1:AvwMYaRytfdeVt3u6mLaxYtErKYjxA2OXjJ1HHq6t3A= golang.org/x/crypto v0.7.0/go.mod h1:pYwdfH91IfpZVANVyUOhSIPZaFoJGxTFbZhFTx+dXZU= golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842 h1:vr/HnozRka3pE4EsMEg1lgkXJkTFJCVUX+S/ZT6wYzM= golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842/go.mod h1:XtvwrStGgqGPLc4cjQfWqZHG1YFdYs6swckp8vpsjnc= +golang.org/x/net v0.0.0-20180218175443-cbe0f9307d01/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4= +golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s= +golang.org/x/net v0.0.0-20200324143707-d3edc9973b7e/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A= golang.org/x/sync v0.7.0 h1:YsImfSBoP9QPYL0xyKJPq0gcaJdG3rInoqxTWbfQu9M= golang.org/x/sync v0.7.0/go.mod h1:Czt+wKu1gCyEFDUtn0jG5QVvpJ6rzVqr5aXyt9drQfk= +golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY= golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= +golang.org/x/sys v0.0.0-20200323222414-85ca7c5b95cd/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.0.0-20210320140829-1e4c9ba3b0c4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs= golang.org/x/sys v0.6.0 h1:MVltZSvRTcU2ljQOhs94SXPftV6DCNnZViHeQps87pQ= golang.org/x/sys v0.6.0/go.mod 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