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Some keys, e.g. ro do not have values. The current implementation crashed looking for the = sign Externalize findMountType in a new package Parse mount command using FindMountType Rebuild parameter string using csv Add test case and adjust the test framework Signed-off-by: Ygal Blum <ygal.blum@gmail.com>
41 lines
1020 B
Go
41 lines
1020 B
Go
package specgenutilexternal
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import (
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"encoding/csv"
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"errors"
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"strings"
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)
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var (
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errInvalidSyntax = errors.New("incorrect mount format: should be --mount type=<bind|glob|tmpfs|volume>,[src=<host-dir|volume-name>,]target=<ctr-dir>[,options]")
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)
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// FindMountType parses the input and extracts the type of the mount type and
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// the remaining non-type tokens.
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func FindMountType(input string) (mountType string, tokens []string, err error) {
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// Split by comma, iterate over the slice and look for
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// "type=$mountType". Everything else is appended to tokens.
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found := false
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csvReader := csv.NewReader(strings.NewReader(input))
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records, err := csvReader.ReadAll()
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if err != nil {
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return "", nil, err
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}
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if len(records) != 1 {
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return "", nil, errInvalidSyntax
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}
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for _, s := range records[0] {
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kv := strings.Split(s, "=")
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if found || !(len(kv) == 2 && kv[0] == "type") {
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tokens = append(tokens, s)
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continue
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}
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mountType = kv[1]
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found = true
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}
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if !found {
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err = errInvalidSyntax
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}
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return
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}
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