[Bug] Syncfile can not Filter configuration item that contain middle space

[caoxianfei1]

Report a bug.

SyncFile step contains three steps:

1. Read primary config file to a temporary file.
2. Filter key and value according to delimtier(such as '=' or ':') and mutate item according vaiable that user configure.
3. Write modified content back to file.
   you can see at
   

   curveadm/internal/task/step/file.go

   Line 240 in 48abdf1

   func (s *SyncFile) Execute(ctx *context.Context) error {

However, configuration items containing middle spaces cannot be filtered. If one or more spaces, they will be truncated.

for example:

s3.user_agent=S3 Browser

will be filter as follow:

s3.user_agent=S3

The reason may be REGEX_KV_SPLIT

curveadm/internal/task/step/file.go

Line 44 in 48abdf1

REGEX_KV_SPLIT = "^(([^%s]+)%s\\s*)([^\\s#]*)" // key: mu[2] value: mu[3]