Prepare for next rewrite

16 files changed, 1 insertions, 483 deletions

diff --git a/cmd/grus/env.go b/cmd/grus/env.go
deleted file mode 100644
index 4d72030..0000000
--- a/cmd/grus/env.go
+++ /dev/null
@@ -1,17 +0,0 @@
-package main
-
-import "os"
-
-// getEnv will check if the the key exists, if it does then it'll
-// return the value otherwise it will return fallback string.
-func getEnv(key, fallback string) string {
-	// We use os.LookupEnv instead of using os.GetEnv and checking
-	// if the length equals 0 because environment variable can be
-	// set and be of length 0. User could've set key="" which
-	// means the variable was set but the length is 0.
-	value, exists := os.LookupEnv(key)
-	if !exists {
-		value = fallback
-	}
-	return value
-}
diff --git a/cmd/grus/grus.go b/cmd/grus/grus.go
deleted file mode 100644
index 2e04de8..0000000
--- a/cmd/grus/grus.go
+++ /dev/null
@@ -1,60 +0,0 @@
-package main
-
-import (
-	"database/sql"
-	"fmt"
-	"log"
-	"os"
-
-	"tildegit.org/andinus/grus/lexical"
-	"tildegit.org/andinus/grus/search"
-	"tildegit.org/andinus/grus/storage"
-)
-
-func grus() {
-	version := "v0.1.0"
-
-	// Early Check: If command was not passed then print usage and
-	// exit. Later command & service both are checked, this check
-	// is for version command. If not checked then running grus
-	// without any args will fail because os.Args[1] will panic
-	// the program & produce runtime error.
-	if len(os.Args) == 1 || len(os.Args[1]) == 0 {
-		printUsage()
-		os.Exit(0)
-	}
-
-	// Running just `grus` would've paniced the program here if
-	// length of os.Args was not checked beforehand because there
-	// would be no os.Args[1].
-	switch os.Args[1] {
-	case "version", "v", "-version", "--version", "-v":
-		fmt.Printf("Grus %s\n", version)
-		os.Exit(0)
-	case "help", "-help", "--help", "-h":
-		printUsage()
-		os.Exit(0)
-	case "init", "i":
-		db := storage.Init()
-		db.Conn.Close()
-		os.Exit(0)
-	}
-
-	// Initialize the database connection.
-	db := storage.InitConn()
-	defer db.Conn.Close()
-
-	word := os.Args[1]
-	sorted := lexical.Sort(word)
-
-	anagrams, err := search.Anagrams(sorted, db)
-	if err == sql.ErrNoRows {
-		fmt.Println("Word not found in database.")
-		return
-	} else if err != nil {
-		log.Fatalf("grus: Search failed :: %s", err)
-	}
-	for _, w := range anagrams {
-		fmt.Println(w)
-	}
-}
diff --git a/cmd/grus/main_openbsd.go b/cmd/grus/main_openbsd.go
deleted file mode 100644
index 5222bbe..0000000
--- a/cmd/grus/main_openbsd.go
+++ /dev/null
@@ -1,40 +0,0 @@
-// +build openbsd
-
-package main
-
-import (
-	"log"
-	"os"
-
-	"golang.org/x/sys/unix"
-	"tildegit.org/andinus/grus/storage"
-	"tildegit.org/andinus/lynx"
-)
-
-func main() {
-	unveil()
-	grus()
-}
-
-func unveil() {
-	path := storage.GetDir()
-	err := os.MkdirAll(path, os.ModePerm)
-	if err != nil {
-		log.Fatalf("Unable to create directory: %s", path)
-	}
-
-	paths := make(map[string]string)
-
-	paths[path] = "rwc"
-
-	err = lynx.UnveilPathsStrict(paths)
-	if err != nil {
-		log.Fatal(err)
-	}
-
-	// Block further unveil calls.
-	err = unix.UnveilBlock()
-	if err != nil {
-		log.Fatal(err)
-	}
-}
diff --git a/cmd/grus/main_other.go b/cmd/grus/main_other.go
deleted file mode 100644
index 88824ad..0000000
--- a/cmd/grus/main_other.go
+++ /dev/null
@@ -1,7 +0,0 @@
-// +build !openbsd
-
-package main
-
-func main() {
-	grus()
-}
diff --git a/cmd/grus/usage.go b/cmd/grus/usage.go
deleted file mode 100644
index 1749ba7..0000000
--- a/cmd/grus/usage.go
+++ /dev/null
@@ -1,10 +0,0 @@
-package main
-
-import "fmt"
-
-func printUsage() {
-	fmt.Println("Usage: grus <word> / <command>")
-	fmt.Println("\nCommands: ")
-	fmt.Println(" help     Print help")
-	fmt.Println(" version  Print Grus version")
-}
diff --git a/go.mod b/go.mod
index 23e39e3..6b71a92 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,6 @@ module tildegit.org/andinus/grus
 go 1.13
 
 require (
-	github.com/mattn/go-sqlite3 v2.0.3+incompatible
 	golang.org/x/sys v0.0.0-20200406113430-c6e801f48ba2
-	tildegit.org/andinus/lynx v0.1.0
+	tildegit.org/andinus/lynx v0.2.0
 )
diff --git a/go.sum b/go.sum
index ef77d7c..dbd60ff 100644
--- a/go.sum
+++ b/go.sum
@@ -1,6 +1,3 @@
-framagit.org/andinus/grus v0.0.0-20200323142459-7a9fbe3c72e7 h1:+TuTHGVgEbsqFnjuWI064YfaCWImWndppHIZh/bMAhY=
-github.com/mattn/go-sqlite3 v2.0.3+incompatible h1:gXHsfypPkaMZrKbD5209QV9jbUTJKjyR5WD3HYQSd+U=
-github.com/mattn/go-sqlite3 v2.0.3+incompatible/go.mod h1:FPy6KqzDD04eiIsT53CuJW3U88zkxoIYsOqkbpncsNc=
 golang.org/x/sys v0.0.0-20200331124033-c3d80250170d/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200406113430-c6e801f48ba2 h1:Z9pPywZscwuw0ijrLEbTzW9lppFgBY4HDgbvoDnreQs=
 golang.org/x/sys v0.0.0-20200406113430-c6e801f48ba2/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
diff --git a/scripts/grus-add b/scripts/grus-add
deleted file mode 100755
index 4c3311a..0000000
--- a/scripts/grus-add
+++ /dev/null
@@ -1,56 +0,0 @@
-#!/usr/bin/env python3
-
-import sys
-import sqlite3
-import argparse
-
-parser = argparse.ArgumentParser(description='grus-add')
-parser.add_argument('-f', '--file', type=str, required=False,
-                    help='file containing list of strings')
-parser.add_argument('-w', '--word', type=str, required=False,
-                    help='file containing list of strings')
-parser.add_argument('-d', '--db', type=str, required=True,
-                    help='database file')
-args = parser.parse_args()
-
-if __name__ == '__main__':
-    if args.file == None and args.word == None:
-            print("-f or -w required")
-            print("run grus-add --help to print help")
-            sys.exit(1)
-
-    conn = sqlite3.connect(args.db)
-    curs = conn.cursor()
-
-    stmt = """CREATE TABLE IF NOT EXISTS words (
-    word   TEXT PRIMARY KEY NOT NULL,
-    sorted TEXT NOT NULL);"""
-    curs.execute(stmt)
-    conn.commit()
-
-    stmt = """INSERT INTO words(word, sorted)
-    VALUES(?, ?);"""
-
-    if args.file != None:
-        rows = []
-        with open(args.file) as words:
-            for word in words:
-                word = word.strip()
-                lexical = ''.join(sorted(word))
-                rows.append((word, lexical))
-                print(len(rows))
-                sys.stdout.write('\x1b[1A')
-                sys.stdout.write('\x1b[2K')
-        curs.executemany(stmt, rows)
-
-    elif args.word != None:
-        word = args.word.strip()
-        lexical = ''.join(sorted(word))
-        curs.execute(stmt, (word, lexical))
-
-    conn.commit()
-
-    curs.close()
-    conn.close()
-
-    print("Database initialized.")
diff --git a/scripts/init b/scripts/init
deleted file mode 100755
index 1ca1f12..0000000
--- a/scripts/init
+++ /dev/null
@@ -1,13 +0,0 @@
-#!/bin/sh
-
-# Download the list of words.
-curl -o /tmp/words.txt \
-     https://raw.githubusercontent.com/dwyl/english-words/master/words.txt
-
-# Make the script executable.
-chmod +x grus-add
-
-# Add those words to the database.
-./grus-add \
-    -d $HOME/.local/share/grus/grus.db \
-    -f /tmp/words.txt
diff --git a/scripts/install.sh b/scripts/install.sh
deleted file mode 100755
index bc02528..0000000
--- a/scripts/install.sh
+++ /dev/null
@@ -1,56 +0,0 @@
-#!/bin/sh
-
-openbsdH="25a8dc77cda3d225c85d3f0cb318d01c17546c1c4a8c789a318f832ce1948bc3"
-
-earlyCheck(){
-    os=`uname`
-    os=`echo $os | tr "[:upper:]" "[:lower:"]`
-
-    case $os in
-        *openbsd* ) ;;
-        *)
-            echo "Pre-built binary not available for your os"
-            exit 1
-            ;;
-    esac
-
-    cpu=`uname -m`
-    cpu=`echo $cpu | tr "[:upper:]" "[:lower:"]`
-
-    case $cpu in
-        *amd*64* | *x86*64* ) ;;
-        *)
-            echo "Pre-built binary not available for your cpu"
-            exit 1
-            ;;
-    esac
-}
-
-getURL(){
-    url="https://archive.org/download/grus-v0.1.0/grus-v0.1.0-$os-$cpu"
-}
-
-printURL(){
-    echo "You can get the Pre-built binary here:"
-    echo "$url"
-    echo
-    echo "Run these commands to install it on your device."
-    echo "# curl -L -o /usr/local/bin/grus $url"
-    echo "# chmod +x /usr/local/bin/grus"
-    echo
-    echo "This is sha256 hash for grus built for: $os $cpu"
-    case $os in
-        *openbsd* )
-            echo "$openbsdH"
-            ;;
-    esac
-    echo
-    echo "Verify the hash by running sha256 on grus binary."
-    echo "$ sha256 /usr/local/bin/grus"
-}
-
-echo "Grus v0.1.0"
-echo
-earlyCheck
-getURL
-printURL
diff --git a/search/anagrams.go b/search/anagrams.go
deleted file mode 100644
index e04dfd7..0000000
--- a/search/anagrams.go
+++ /dev/null
@@ -1,35 +0,0 @@
-package search
-
-import "tildegit.org/andinus/grus/storage"
-
-// Anagrams will search for unjumbled words in database, given sorted
-// word along with all the anagrams.
-func Anagrams(sorted string, db *storage.DB) (anagrams []string, err error) {
-	db.Mu.RLock()
-	defer db.Mu.RUnlock()
-
-	stmt, err := db.Conn.Prepare("SELECT word FROM words WHERE sorted = ?")
-	if err != nil {
-		return
-	}
-	defer stmt.Close()
-
-	rows, err := stmt.Query(sorted)
-	if err != nil {
-		return
-	}
-	defer rows.Close()
-	for rows.Next() {
-		var word string
-		err = rows.Scan(&word)
-		if err != nil {
-			return
-		}
-		anagrams = append(anagrams, word)
-	}
-	err = rows.Err()
-	if err != nil {
-		return
-	}
-	return
-}
diff --git a/search/word.go b/search/word.go
deleted file mode 100644
index c83c318..0000000
--- a/search/word.go
+++ /dev/null
@@ -1,21 +0,0 @@
-package search
-
-import "tildegit.org/andinus/grus/storage"
-
-// Word will search for unjumbled words in database, given sorted word.
-func Word(sorted string, db *storage.DB) (word string, err error) {
-	db.Mu.RLock()
-	defer db.Mu.RUnlock()
-
-	stmt, err := db.Conn.Prepare("SELECT word FROM words WHERE sorted = ?")
-	if err != nil {
-		return
-	}
-	defer stmt.Close()
-
-	err = stmt.QueryRow(sorted).Scan(&word)
-	if err != nil {
-		return
-	}
-	return
-}
diff --git a/storage/getdir_darwin.go b/storage/getdir_darwin.go
deleted file mode 100644
index 8d6ebbf..0000000
--- a/storage/getdir_darwin.go
+++ /dev/null
@@ -1,22 +0,0 @@
-// +build darwin
-
-package storage
-
-import (
-	"fmt"
-	"os"
-)
-
-// GetDir returns grus data directory. Default data directory on
-// macOS is $HOME/Library.
-func GetDir() string {
-	cacheDir := fmt.Sprintf("%s/%s",
-		os.Getenv("HOME"),
-		"Library")
-
-	// Grus cache directory is cacheDir/grus
-	grusCacheDir := fmt.Sprintf("%s/%s", cacheDir,
-		"grus")
-
-	return grusCacheDir
-}
diff --git a/storage/getdir_unix.go b/storage/getdir_unix.go
deleted file mode 100644
index 6f975db..0000000
--- a/storage/getdir_unix.go
+++ /dev/null
@@ -1,34 +0,0 @@
-// +build linux netbsd openbsd freebsd dragonfly
-
-package storage
-
-import (
-	"fmt"
-	"os"
-)
-
-// GetDir returns grus data directory. Check if the user has set
-// XDG_DATA_HOME is set & if that is not set then assume it to be the
-// default value which is $HOME/.local/share according to XDG Base
-// Directory Specification.
-func GetDir() (grusCacheDir string) {
-	cacheDir := SysDir()
-
-	// Grus cache directory is cacheDir/grus.
-	grusCacheDir = fmt.Sprintf("%s/%s", cacheDir,
-		"grus")
-
-	return
-}
-
-// SysDir returns the system data directory, this is useful for unveil in
-// OpenBSD.
-func SysDir() (cacheDir string) {
-	cacheDir = os.Getenv("XDG_DATA_HOME")
-	if len(cacheDir) == 0 {
-		cacheDir = fmt.Sprintf("%s/%s/%s", os.Getenv("HOME"),
-			".local", "share")
-	}
-
-	return
-}
diff --git a/storage/init.go b/storage/init.go
deleted file mode 100644
index 9894c5b..0000000
--- a/storage/init.go
+++ /dev/null
@@ -1,63 +0,0 @@
-package storage
-
-import (
-	"database/sql"
-	"fmt"
-	"log"
-
-	_ "github.com/mattn/go-sqlite3"
-)
-
-// initErr will log the error and close the database connection if
-// necessary.
-func initErr(db *DB, err error) {
-	if db.Conn != nil {
-		db.Conn.Close()
-	}
-	log.Fatalf("Initialization Error :: %s", err.Error())
-}
-
-func initDB(db *DB) {
-	var err error
-
-	db.Path = fmt.Sprintf("%s/grus.db", GetDir())
-
-	db.Conn, err = sql.Open("sqlite3", db.Path)
-	if err != nil {
-		log.Printf("storage/init.go: %s\n",
-			"Failed to open database connection")
-		initErr(db, err)
-	}
-
-	sqlstmt := []string{
-		`CREATE TABLE IF NOT EXISTS words (
-        word   TEXT PRIMARY KEY NOT NULL,
-        sorted TEXT NOT NULL);`,
-		`INSERT INTO words(word, lexical)
-        values("grus", "grsu");`,
-	}
-
-	// We range over statements and execute them one by one, this
-	// is during initialization so it doesn't matter if it takes
-	// few more ms. This way we know which statement caused the
-	// program to fail.
-	for _, s := range sqlstmt {
-		stmt, err := db.Conn.Prepare(s)
-
-		if err != nil {
-			log.Printf("storage/init.go: %s\n",
-				"failed to prepare statement")
-			log.Println(s)
-			initErr(db, err)
-		}
-
-		_, err = stmt.Exec()
-		stmt.Close()
-		if err != nil {
-			log.Printf("storage/init.go: %s\n",
-				"failed to execute statement")
-			log.Println(s)
-			initErr(db, err)
-		}
-	}
-}
diff --git a/storage/storage.go b/storage/storage.go
deleted file mode 100644
index 9aa1a57..0000000
--- a/storage/storage.go
+++ /dev/null
@@ -1,44 +0,0 @@
-package storage
-
-import (
-	"database/sql"
-	"fmt"
-	"log"
-	"sync"
-)
-
-// DB holds the database connection, mutex & path.
-type DB struct {
-	Path string
-	Mu   *sync.RWMutex
-	Conn *sql.DB
-}
-
-// Init initializes the database.
-func Init() *DB {
-	db := DB{
-		Mu: new(sync.RWMutex),
-	}
-
-	initDB(&db)
-	return &db
-}
-
-// InitConn initializes database connection.
-func InitConn() *DB {
-	var err error
-	db := DB{
-		Mu: new(sync.RWMutex),
-	}
-
-	db.Path = fmt.Sprintf("%s/grus.db", GetDir())
-
-	db.Conn, err = sql.Open("sqlite3", db.Path)
-	if err != nil {
-		log.Printf("storage/init.go: %s\n",
-			"Failed to open database connection")
-		initErr(&db, err)
-	}
-
-	return &db
-}