Change config file lookup

- Look for both local and global config file
- Directly generate the global config file with make install

.gitignore

@@ -1,3 +1,2 @@
 bloat
 database
-bloat.def.conf

INSTALL

@@ -15,12 +15,12 @@ This will perform a system wide installation of bloat. By default, it will
 install the binary in /usr/local/bin and data files in /usr/local/share/bloat.
 You can change these paths by editing the Makefile.
 
-3. Edit and copy the config file
-Edit the generated config file to you liking and then copy it to the default
-config location. Comments in the config file describe what each config value 
-does. For most cases, you only need to change the value of "client_website".
-$ $EDITOR bloat.def.conf
-# cp bloat.def.conf /etc/bloat.conf
+3. Edit the config file
+bloat looks for a file named bloat.conf in the working directory and
+/etc/bloat in that order. You can also specify another file by using the -f
+flag. Comments in the config file describe what each config value does. For
+most cases, you only need to change the value of "client_website".
+# $EDITOR /etc/bloat.conf
 
 4. Create database directory
 Create a directory to store session information. Optionally, create a user

Makefile

@@ -14,17 +14,11 @@ SRC=main.go		\
 	service/*.go 	\
 	util/*.go 	\
 
-all: bloat bloat.def.conf
+all: bloat
 
 bloat: $(SRC) $(TMPL)
 	$(GO) build $(GOFLAGS) -o bloat main.go
 
-bloat.def.conf:
-	sed -e "s%=database%=/var/bloat%g" \
-		-e "s%=templates%=$(SHAREPATH)/templates%g" \
-		-e "s%=static%=$(SHAREPATH)/static%g" \
-		< bloat.conf > bloat.def.conf
-
 install: bloat
 	mkdir -p $(DESTDIR)$(BINPATH) \
 		$(DESTDIR)$(SHAREPATH)/templates \
@@ -35,6 +29,10 @@ install: bloat
 	chmod 0644 $(DESTDIR)$(SHAREPATH)/templates/*
 	cp -r static/* $(DESTDIR)$(SHAREPATH)/static
 	chmod 0644 $(DESTDIR)$(SHAREPATH)/static/*
+	sed -e "s%=database%=/var/bloat%g" \
+		-e "s%=templates%=$(SHAREPATH)/templates%g" \
+		-e "s%=static%=$(SHAREPATH)/static%g" \
+		< bloat.conf > /etc/bloat.conf
 
 uninstall:
 	rm -f $(DESTDIR)$(BINPATH)/bloat
@@ -42,4 +40,3 @@ uninstall:
 
 clean: 
 	rm -f bloat
-	rm -f bloat.def.conf

README

@@ -15,11 +15,11 @@ Building and Installation:
 Typing make will build the binary 
 $ make
 
-Edit the provided config file. See the bloat.conf file for more details.  
+Edit the default config file. See the bloat.conf file for more details.
 $ ed bloat.conf
 
 Run the binary
-$ ./bloat -f bloat.conf
+$ ./bloat
 
 You can now access the frontend at http://127.0.0.1:8080, which is the default
 listen address. See the INSTALL file for more details.

config/config.go

@@ -108,21 +108,30 @@ func Parse(r io.Reader) (c *config, err error) {
 	return
 }
 
-func ParseFile(file string) (c *config, err error) {
-	f, err := os.Open(file)
-	if err != nil {
-		return
+func ParseFiles(files []string) (c *config, err error) {
+	var lastErr error
+	for _, file := range files {
+		f, err := os.Open(file)
+		if err != nil {
+			lastErr = err
+			if os.IsNotExist(err) {
+				continue
+			}
+			return nil, err
+		}
+		defer f.Close()
+		info, err := f.Stat()
+		if err != nil {
+			lastErr = err
+			return nil, err
+		}
+		if info.IsDir() {
+			continue
+		}
+		return Parse(f)
 	}
-	defer f.Close()
-
-	info, err := f.Stat()
-	if err != nil {
-		return
+	if lastErr == nil {
+		lastErr = errors.New("invalid config file")
 	}
-
-	if info.IsDir() {
-		return nil, errors.New("invalid config file")
-	}
-
-	return Parse(f)
+	return nil, lastErr
 }

main.go

@@ -17,7 +17,7 @@ import (
 )
 
 var (
-	configFile = "/etc/bloat.conf"
+	configFiles = []string{"bloat.conf", "/etc/bloat.conf"}
 )
 
 func errExit(err error) {
@@ -34,11 +34,11 @@ func main() {
 	for _, opt := range opts {
 		switch opt.Option {
 		case 'f':
-			configFile = opt.Value
+			configFiles = []string{opt.Value}
 		}
 	}
 
-	config, err := config.ParseFile(configFile)
+	config, err := config.ParseFiles(configFiles)
 	if err != nil {
 		errExit(err)
 	}