71 lines
1.6 KiB
Go
71 lines
1.6 KiB
Go
package pgservice
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import (
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"bufio"
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"fmt"
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"os"
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"strings"
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"github.com/lib/pq/internal/pqutil"
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)
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func FindService(path string, service string) (map[string]string, error) {
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fp, err := os.Open(path)
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if err != nil {
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if pqutil.ErrNotExists(err) {
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// libpq just returns "definition of service not found" if the
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// default file doesn't exist, but IMO that's confusing.
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return nil, fmt.Errorf("service file %q not found", path)
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}
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return nil, err
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}
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defer fp.Close()
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var (
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scan = bufio.NewScanner(fp)
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i int
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)
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for scan.Scan() {
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i++
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line := strings.TrimSpace(scan.Text())
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if line == "" || line[0] == '#' {
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continue
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}
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// [service] header that we want.
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if line[0] == '[' && line[len(line)-1] == ']' && strings.TrimSpace(line[1:len(line)-1]) == service {
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opts := make(map[string]string)
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for scan.Scan() {
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i++
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line := strings.TrimSpace(scan.Text())
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if line == "" || line[0] == '#' {
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continue
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}
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// Next header: our work here is done.
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if line[0] == '[' && line[len(line)-1] == ']' {
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return opts, nil
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}
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k, v, ok := strings.Cut(line, "=")
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if !ok {
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return nil, fmt.Errorf("line %d: missing '=' in %q", i, line)
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}
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k, v = strings.TrimSpace(k), strings.TrimSpace(v)
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if k == "" {
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return nil, fmt.Errorf("line %d: no value before '=' in %q", i, line)
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}
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opts[k] = v
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}
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if scan.Err() != nil {
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return nil, scan.Err()
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}
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return opts, nil
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}
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}
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if scan.Err() != nil {
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return nil, scan.Err()
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}
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return nil, fmt.Errorf("definition of service %q not found", service)
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}
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