From b0d2931ab611d131ed0bbbce18f2c19726196bbc Mon Sep 17 00:00:00 2001
From: ale <ale@incal.net>
Date: Sat, 2 Feb 2019 06:45:15 +0000
Subject: [PATCH] Load configuration files in sorted order

Allows us to use rc.d-style setup where later files override contents
from previous ones, useful in a configuration management context.
---
 server/config.go | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/server/config.go b/server/config.go
index 87eb280..0229f3c 100644
--- a/server/config.go
+++ b/server/config.go
@@ -4,6 +4,7 @@ import (
 	"io/ioutil"
 	"log"
 	"path/filepath"
+	"sort"
 
 	"git.autistici.org/ai3/go-common/clientutil"
 	"gopkg.in/yaml.v2"
@@ -81,12 +82,21 @@ func loadStandaloneBackendConfig(path string) (map[string]yaml.MapSlice, error)
 	return out, nil
 }
 
+// Sort a string slice.
+type filesList []string
+
+func (l filesList) Len() int           { return len(l) }
+func (l filesList) Swap(i, j int)      { l[i], l[j] = l[j], l[i] }
+func (l filesList) Less(i, j int) bool { return l[i] < l[j] }
+
 // Apply a function to all files matching a glob pattern (errors are ignored).
+// Files are visited in sorted order.
 func forAllFiles(pattern string, f func(string)) {
 	files, err := filepath.Glob(pattern)
 	if err != nil {
 		return
 	}
+	sort.Sort(filesList(files))
 	for _, file := range files {
 		f(file)
 	}
-- 
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