Function findHostBlock

internal/sshconfig/writer.go:247–284

findHostBlock finds the line range of a host block Returns (start, end, found) where end is exclusive

(lines []string, hostName string)

// findHostBlock finds the line range of a host block
// Returns (start, end, found) where end is exclusive
func findHostBlock(lines []string, hostName string) (int, int, bool) {
	inBlock := false
	start := -1

	for i := 0; i < len(lines); i++ {
		line := strings.TrimSpace(lines[i])
		lower := strings.ToLower(line)

		if strings.HasPrefix(lower, "host ") {
			hostParts := strings.Fields(line[5:])

			// Check if this is our target host
			isTarget := false
			for _, h := range hostParts {
				if h == hostName {
					isTarget = true
					break
				}
			}

			if isTarget && !inBlock {
				// Found start of target block
				inBlock = true
				start = i
			} else if inBlock {
				// Found next host block, end of target
				return start, i, true
			}
		}
	}

	// If we found the start but no next host, block extends to EOF
	if inBlock {
		return start, len(lines), true
	}

	return -1, -1, false
}

// renderHostBlock converts HostConfig to SSH config format
func renderHostBlock(cfg *HostConfig) string {