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https://github.com/chatmail/relay.git
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29b8bb34ee
- Adds configuration parameters (`change_kernel_settings`, `fs_inotify_max_user_instances_and_watchers`)
80 lines
2.1 KiB
Bash
80 lines
2.1 KiB
Bash
#!/bin/bash
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set -eo pipefail
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INI_FILE="${INI_FILE:-chatmail.ini}"
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if [ ! -f "$INI_FILE" ]; then
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echo "Error: file $INI_FILE not found." >&2
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exit 1
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fi
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TMP_FILE="$(mktemp)"
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convert_to_bytes() {
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local value="$1"
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if [[ "$value" =~ ^([0-9]+)([KkMmGgTt])$ ]]; then
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local num="${BASH_REMATCH[1]}"
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local unit="${BASH_REMATCH[2]}"
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case "$unit" in
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[Kk]) echo $((num * 1024)) ;;
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[Mm]) echo $((num * 1024 * 1024)) ;;
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[Gg]) echo $((num * 1024 * 1024 * 1024)) ;;
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[Tt]) echo $((num * 1024 * 1024 * 1024 * 1024)) ;;
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esac
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elif [[ "$value" =~ ^[0-9]+$ ]]; then
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echo "$value"
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else
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echo "Error: incorrect size format: $value." >&2
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return 1
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fi
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}
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process_specific_params() {
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local key=$1
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local value=$2
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local destination_file=$3
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if [[ "$key" == "max_message_size" ]]; then
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converted=$(convert_to_bytes "$value") || exit 1
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if grep -q -e "## .* = .* bytes" "$destination_file"; then
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sed "s|## .* = .* bytes|## $value = $converted bytes|g" "$destination_file";
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else
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echo "## $value = $converted bytes" >> "$destination_file"
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fi
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echo "$key = $converted" >> "$destination_file"
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else
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echo "$key = $value" >> "$destination_file"
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fi
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}
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while IFS= read -r line; do
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if [[ "$line" =~ ^[[:space:]]*#.* || "$line" =~ ^[[:space:]]*$ ]]; then
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echo "$line" >> "$TMP_FILE"
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continue
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fi
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if [[ "$line" =~ ^([a-z0-9_]+)[[:space:]]*=[[:space:]]*(.*)$ ]]; then
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key="${BASH_REMATCH[1]}"
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current_value="${BASH_REMATCH[2]}"
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env_var_name=$(echo "$key" | tr 'a-z' 'A-Z')
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env_value="${!env_var_name}"
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if [[ -n "$env_value" ]]; then
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process_specific_params "$key" "$env_value" "$TMP_FILE"
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else
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echo "$line" >> "$TMP_FILE"
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fi
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else
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echo "$line" >> "$TMP_FILE"
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fi
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done < "$INI_FILE"
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PERMS=$(stat -c %a "$INI_FILE")
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OWNER=$(stat -c %u "$INI_FILE")
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GROUP=$(stat -c %g "$INI_FILE")
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chmod "$PERMS" "$TMP_FILE"
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chown "$OWNER":"$GROUP" "$TMP_FILE"
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mv "$TMP_FILE" "$INI_FILE"
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