Add remote config fetching capability to the -C CLI flag, enabling
centralized fleet management of gost nodes.
- readConfig() now detects http:// and https:// URLs and fetches
them via HTTP GET with a 30s timeout and shared client pool
- Format auto-detection from Content-Type header (using mime
parsing) with fallback to URL path extension (.yaml/.json)
- 10 MiB response size limit to prevent memory exhaustion
- URL userinfo stripped from error messages for safety
- Fix ReadFile to force viper config type from file extension,
preventing format detection ambiguity
- Fix viper config search path fallback: skip cfg.Load() when
-C flags are explicitly provided, avoiding unwanted merges
- Tests: URL fetch (YAML/JSON), non-200, oversize, detectFormat,
isHTTPURL, sanitizeURL, and combined file+URL Parse scenario
Allow passing -C multiple times to load and merge several configuration
files in order. Slice fields are appended; scalar fields (TLS, Log, API,
Metrics, Profiling) are overridden by later files — the same semantics as
the existing mergeConfig() used for CLI+config merging.
- Change Args.CfgFile string to Args.CfgFiles []string
- Extract readConfig() helper from Parse() for single-source loading
- Loop over CfgFiles in Parse(), merging each into the accumulator
- Add Quotas to mergeConfig (was missing from the slice list)
- Add TestParse_MultiFile integration test for two-file merge
Closesgo-gost/gost#150
Add godoc comments for all 62 exported symbols across 20 files in
config/parsing/: 23 MDKey constants, 35 Parse*/List/Default* functions,
3 TLS helpers, 1 Args struct with 7 fields, and the package doc.
Prevent data loss and nil panics across 5 parse functions:
- chain: nil-guard hop entries to avoid deref on empty YAML lists
- hop: build merged metadata map instead of writing inherited values
into the original NodeConfig; swap+restore around ParseNode call
- node: use local connCfg/dialCfg instead of overwriting cfg.Connector
and cfg.Dialer fields; only fill in Type when empty
- parser: preserve existing config file fields when env vars override
Level/Addr (was replacing the entire struct)
- router: only update ipNet from dst CIDR if parse succeeds, keeping
the route.Net fallback instead of overwriting with nil
ginuerzh