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zhangwenjian
3a96f37391
The seed scripts were read from ./config/ only, so migrating an empty database failed anywhere that directory was absent, such as a container holding just the binary and its settings. Embed them and prefer a file on disk when there is one.
32 lines
908 B
Go
32 lines
908 B
Go
package config
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import (
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"embed"
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"errors"
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"io/fs"
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"os"
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"path"
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)
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// The seed scripts ship inside the binary so a database can be created from
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// wherever the binary runs. They used to be read from ./config/ only, which
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// fails for anything not started from the repository root - a Docker image
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// that carries just the binary and its settings file, for one.
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//
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//go:embed db.sql pg.sql db-begin-mysql.sql db-end-mysql.sql
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var seedFS embed.FS
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// ReadSeed returns the seed script at name (e.g. "config/db.sql").
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// A file on disk wins, so a deployment that edits its own copy keeps doing
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// so; the embedded copy is the fallback when there is none.
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func ReadSeed(name string) ([]byte, error) {
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b, err := os.ReadFile(name)
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if err == nil || !errors.Is(err, fs.ErrNotExist) {
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return b, err
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}
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if emb, embErr := seedFS.ReadFile(path.Base(name)); embErr == nil {
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return emb, nil
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}
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return nil, err
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}
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