Initial commit

.gitignore

@@ -0,0 +1 @@
+/iq

Gopkg.toml

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+[[constraint]]
+  name = "github.com/go-ini/ini"
+  version = "^1.38"
+
+[prune]
+  go-tests = true
+  unused-packages = true

Makefile

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+.PHONY: build
+build:
+	go build

README.md

@@ -1 +1,17 @@
 # iq
+
+INI file query tool.
+
+
+## Installation
+
+    $ go get github.com/djui/iq
+
+
+## Usage
+
+    $ echo "[section]\nkey = value\n" | jq section.key -
+    value
+
+    $ jq section.key file.ini
+    value

main.go

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+package main
+
+import (
+	"errors"
+	"flag"
+	"fmt"
+	"io/ioutil"
+	"log"
+	"os"
+	"strings"
+
+	"github.com/go-ini/ini"
+)
+
+type query struct {
+	Section string
+	Key     string
+}
+
+func main() {
+	log.SetFlags(0)
+	log.SetPrefix("")
+
+	flag.Usage = func() {
+		fmt.Fprintf(flag.CommandLine.Output(), "Usage: %s SECTION.KEY FILE\n", os.Args[0])
+		flag.PrintDefaults()
+	}
+	flag.Parse()
+
+	if flag.NArg() == 0 {
+		haltOnError(errors.New("missing query argument"))
+	} else if flag.NArg() == 1 {
+		haltOnError(errors.New("missing file argument"))
+	}
+
+	queryArg := flag.Arg(0)
+	q, err := parseQuery(queryArg)
+	haltOnError(err)
+
+	fileArg := flag.Arg(1)
+	b, err := readFile(fileArg)
+	haltOnError(err)
+
+	i, err := ini.Load(b)
+	haltOnError(err)
+
+	fmt.Println(i.Section(q.Section).Key(q.Key).String())
+}
+
+func parseQuery(q string) (*query, error) {
+	parts := strings.SplitN(q, ".", 2)
+	if len(parts) != 2 || parts[0] == "" || parts[1] == "" {
+		return nil, errors.New("invalid query argument")
+	}
+
+	return &query{
+		Section: parts[0],
+		Key:     parts[1],
+	}, nil
+}
+
+func readFile(f string) ([]byte, error) {
+	if f == "-" {
+		return ioutil.ReadAll(os.Stdin)
+	}
+	return ioutil.ReadFile(f)
+}
+
+func haltOnError(err error) {
+	if err != nil {
+		log.Fatalln("Error:", err)
+	}
+}