wgoodall01/wikipath

package main

import (
    "fmt"
    "os"

    "github.com/urfave/cli"
    . "github.com/wgoodall01/wikipath/wp"
)

// IndexShowCmd is the CLI command to show a particular article from a `*.wpindex` file.
var IndexShowCmd = cli.Command{
    Name:  "index-show",
    Usage: "Show an article's entry in the index.",
    Flags: []cli.Flag{WpFlags.WpindexPath},
    Action: func(c *cli.Context) error {
        // Open the index
        indexFile, indexErr := os.Open(c.String("wpindex"))
        if indexErr != nil {
            return NewFileError("could not open wiki index '%s'", WpFlags.WpindexPath.Value)
        }

        fmt.Printf("Searching %s...\n", c.String("wpindex"))

        // Only one article
        args := c.Args()
        if len(args) != 1 {
            return NewUsageError("Only 1 article should be passed. Got %d", len(args))
        }

        // Create WpindexReader
        reader, readerErr := NewWpindexReader(indexFile)

        if readerErr != nil {
            return NewFileError("Could not understand index.")
        }

        for {
            sa, _ := reader.ReadArticle()
            if sa == nil {
                break
            }
            if NormalizeArticleTitle(sa.Title) == NormalizeArticleTitle(c.Args()[0]) {
                fmt.Println(sa.Title)
                for _, l := range sa.Links {
                    fmt.Println("  " + l)
                }
                break
            }

        }

        return nil
    },
}