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package main
import (
"bufio"
"fmt"
"os"
"regexp"
"strings"
)
var (
linePattern = regexp.MustCompile(`^ *--([a-zA-Z0-9_-]+)\ value.*\[\$([A-Z0-9_]+)\]`)
descRegexp = regexp.MustCompile(`^.*value\s+(.*)(\(default.*\)|\[.*\]).*$`)
defValRegexp = regexp.MustCompile(`\(default: ([^)]+)\)`)
)
func main() {
fmt.Println("# See https://codeberg.org/Codeberg/pages-server")
fmt.Println()
scanner := bufio.NewScanner(os.Stdin)
for scanner.Scan() {
line := scanner.Text()
matches := linePattern.FindStringSubmatch(line)
if matches == nil {
continue
}
optionName := matches[2]
descMatches := descRegexp.FindStringSubmatch(line)
var description string
if len(descMatches) > 1 {
description = descMatches[1]
}
description = strings.TrimRight(description, " \t")
if strings.HasPrefix(description, "]") {
description = strings.TrimPrefix(description, "]")
description = strings.TrimLeft(description, " ")
}
defValMatches := defValRegexp.FindStringSubmatch(line)
var defaultValue string
if len(defValMatches) > 1 {
defaultValue = defValMatches[1]
}
exportCmd := "export"
switch optionName {
case "FORBIDDEN_MIME_TYPES",
"ALLOWED_CORS_DOMAINS",
"BLACKLISTED_PATHS",
"CONFIG_FILE",
"PROFILING_ADDRESS",
"ACME_EAB_KID",
"ACME_EAB_HMAC",
"DNS_PROVIDER":
optionName = "#" + optionName
exportCmd = "#" + exportCmd
}
if description != "" {
fmt.Printf("# %s\n", description)
} else {
fmt.Println("#")
}
if defaultValue != "" {
fmt.Printf("%s=%s\n", optionName, defaultValue)
fmt.Printf("%s %s\n", exportCmd, optionName)
} else {
fmt.Printf("%s=\"\"\n", optionName)
uncommented := strings.TrimPrefix(optionName, "#")
fmt.Printf("%s %s\n", exportCmd, uncommented)
}
fmt.Println()
}
if err := scanner.Err(); err != nil {
fmt.Fprintf(os.Stderr, "read error: %v\n", err)
os.Exit(1)
}
}
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