// parseSshConfigFile parses the ~/.ssh/config file and build a list of section
func parseSshConfigFile(path string) (map[string]*SshConfigFileSection, error) {
log.Debugf("parsing ssh config file: %s", path)
content, err := ioutil.ReadFile(path)
if err != nil {
return nil, err
}
sections := make(map[string]*SshConfigFileSection)
for _, split := range strings.Split(string(content), "Host ") {
split = strings.TrimSpace(split)
if split == "" {
continue
}
section := parseSshConfigFileSection(split)
sections[section.Host] = section
}
return sections, nil
}
// parseSshConfigFileSection parses a section from the ~/.ssh/config file
func parseSshConfigFileSection(content string) *SshConfigFileSection {
section := &SshConfigFileSection{}
for n, line := range strings.Split(content, "\n") {
line = strings.TrimSpace(line)
if line == "" {
continue
}
if n == 0 {
section.Host = line
} else if strings.HasPrefix(line, "ForwardAgent") {
section.ForwardAgent = strings.TrimSpace(strings.TrimPrefix(line, "ForwardAgent"))
} else if strings.HasPrefix(line, "User") {
section.User = strings.TrimSpace(strings.TrimPrefix(line, "User"))
} else if strings.HasPrefix(line, "HostName") {
section.HostName = strings.TrimSpace(strings.TrimPrefix(line, "HostName"))
} else if strings.HasPrefix(line, "Port") {
section.Port = strings.TrimSpace(strings.TrimPrefix(line, "Port"))
}
}
log.Debugf("parsed ssh config file section: %s", section.Host)
return section
}