adding hugo

hugolib/config.go

@@ -0,0 +1,143 @@
+// Copyright © 2013 Steve Francia <spf@spf13.com>.
+//
+// Licensed under the Simple Public License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+// http://opensource.org/licenses/Simple-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package hugolib
+
+import (
+	"encoding/json"
+	"fmt"
+	"io/ioutil"
+	"os"
+	"path"
+	"path/filepath"
+)
+
+// config file items
+type Config struct {
+	SourceDir, PublishDir, BaseUrl, StaticDir string
+	Path, CacheDir, LayoutDir, DefaultLayout  string
+	Indexes                                   map[string]string // singular, plural
+	ProcessFilters                            map[string][]string
+	BuildDrafts                               bool
+}
+
+var c Config
+
+// Read cfgfile or setup defaults.
+func SetupConfig(cfgfile *string, path *string) *Config {
+	c.setPath(*path)
+
+	configPath, err := c.findConfigFile(*cfgfile)
+
+	if err != nil {
+		fmt.Printf("%v", err)
+		fmt.Println(" using defaults instead")
+	}
+
+	// set defaults
+
+	c.SourceDir = "content"
+	c.LayoutDir = "layouts"
+	c.PublishDir = "public"
+	c.StaticDir = "static"
+	c.DefaultLayout = "post"
+	c.BuildDrafts = false
+
+	file, err := ioutil.ReadFile(configPath)
+	if err == nil {
+		if err := json.Unmarshal(file, &c); err != nil {
+			fmt.Printf("Error parsing config: %s", err)
+			os.Exit(1)
+		}
+	}
+
+	// set index defaults if none provided
+	if len(c.Indexes) == 0 {
+		c.Indexes = make(map[string]string)
+		c.Indexes["tag"] = "tags"
+		c.Indexes["category"] = "categories"
+	}
+	return &c
+}
+
+func (c *Config) setPath(p string) {
+	if p == "" {
+		path, err := FindPath()
+		if err != nil {
+			fmt.Printf("Error finding path: %s", err)
+		}
+		c.Path = path
+	} else {
+		path, err := filepath.Abs(p)
+		if err != nil {
+			fmt.Printf("Error finding path: %s", err)
+		}
+		c.Path = path
+	}
+}
+
+func (c *Config) GetPath() string {
+	if c.Path == "" {
+		c.setPath("")
+	}
+	return c.Path
+}
+
+func FindPath() (string, error) {
+	serverFile, err := filepath.Abs(os.Args[0])
+
+	if err != nil {
+		return "", fmt.Errorf("Can't get absolute path for executable: %v", err)
+	}
+
+	path := filepath.Dir(serverFile)
+	realFile, err := filepath.EvalSymlinks(serverFile)
+
+	if err != nil {
+		if _, err = os.Stat(serverFile + ".exe"); err == nil {
+			realFile = filepath.Clean(serverFile + ".exe")
+		}
+	}
+
+	if err == nil && realFile != serverFile {
+		path = filepath.Dir(realFile)
+	}
+
+	return path, nil
+}
+
+func (c *Config) GetAbsPath(name string) string {
+	if path.IsAbs(name) {
+		return name
+	}
+
+	p := filepath.Join(c.GetPath(), name)
+	return p
+}
+
+func (c *Config) findConfigFile(configFileName string) (string, error) {
+	// If the full path is given, just use that
+	if path.IsAbs(configFileName) {
+		return configFileName, nil
+	}
+
+	// Else check the local directory
+	t := c.GetAbsPath(configFileName)
+	if b, _ := exists(t); b {
+		return t, nil
+	} else {
+		return "", fmt.Errorf("config file not found at: %s", t)
+	}
+
+	return "", nil // This line won't ever happen.. looking forward to go 1.1 when I don't need it
+}