Record installed packages and dependancies in sqlite3 db

Archive/Archive.go

@@ -5,111 +5,86 @@ import (
 	"compress/gzip"
 	"io"
 	"os"
-	"path/filepath"
 	"strings"
 )
 
-func Gzip(source, target string) error {
+func CreateArchive(files []string, target string) error {
 	var (
-		reader, writer *os.File
-		archiver       *gzip.Writer
-		filename       string
-		e              error
+		outFile    *os.File
+		gzipWriter *gzip.Writer
+		tarWriter  *tar.Writer
+		file       string
+		e          error
 	)
 
-	reader, e = os.Open(source)
+	// Create output file
+	outFile, e = os.Create(target)
 	if e != nil {
 		return e
 	}
+	defer outFile.Close()
 
-	//filename = filepath.Base(source)
-	//target = filepath.Join(target, fmt.Sprintf("%s.gz", filename))
+	gzipWriter = gzip.NewWriter(outFile)
+	defer gzipWriter.Close()
+	tarWriter = tar.NewWriter(gzipWriter)
+	defer tarWriter.Close()
 
-	writer, e = os.Create(target)
-	if e != nil {
-		return e
-	}
+	// Iterate over files and add them to the tar archive
 
-	defer writer.Close()
-
-	archiver = gzip.NewWriter(writer)
-	archiver.Name = filename
-	defer archiver.Close()
+	for _, file = range files {
+		e = addToArchive(tarWriter, file)
+		if e != nil {
+			return e
+		}
+	}
 
-	_, e = io.Copy(archiver, reader)
-	return e
+	return nil
 }
 
-func Tar(source, target string) error {
+func addToArchive(tarWriter *tar.Writer, filename string) error {
 	var (
-		tarfile, file *os.File
-		tarball       *tar.Writer
-		header        *tar.Header
-		e             error
+		file   *os.File
+		info   os.FileInfo
+		header *tar.Header
+		e      error
 	)
 
-	tarfile, e = os.Create(target)
+	// Open the file which will be written into the archive
+	file, e = os.Open(filename)
 	if e != nil {
 		return e
 	}
-	defer tarfile.Close()
-
-	tarball = tar.NewWriter(tarfile)
-	defer tarball.Close()
-
-	return filepath.Walk(source,
-		func(path string, info os.FileInfo, e error) error {
-			if e != nil {
-				return e
-			}
-
-			header, e = tar.FileInfoHeader(info, info.Name())
-			if e != nil {
-				return e
-			}
-
-			// TODO change "/" to work cross platform
-			header.Name = strings.TrimPrefix(strings.TrimPrefix(path, source), "/")
-
-			if header.Name == "" {
-				return nil
-			}
-
-			e = tarball.WriteHeader(header)
-			if e != nil {
-				return e
-			}
+	defer file.Close()
 
-			if info.IsDir() {
-				return nil
-			}
-
-			file, e = os.Open(path)
-			if e != nil {
-				return e
-			}
-			defer file.Close()
+	// Get FileInfo about our file providing file size, mode, etc.
+	info, e = file.Stat()
+	if e != nil {
+		return e
+	}
 
-			_, e = io.Copy(tarball, file)
-			return e
-		})
-}
+	// Create a tar Header from the FileInfo data
+	header, e = tar.FileInfoHeader(info, info.Name())
+	if e != nil {
+		return e
+	}
 
-func TarGzip(source, target string) error {
-	var (
-		tarPath string = strings.ReplaceAll(target, ".gz", "")
-		e       error
-	)
+	// Use full path as name (FileInfoHeader only takes the basename)
+	// If we don't do this the directory strucuture would
+	// not be preserved
+	// https://golang.org/src/archive/tar/common.go?#L626
+	header.Name = strings.TrimPrefix(filename, "/")
 
-	e = Tar(source, tarPath)
+	// Write file header to the tar archive
+	e = tarWriter.WriteHeader(header)
 	if e != nil {
 		return e
 	}
 
-	e = Gzip(tarPath, target)
+	// Copy file content to tar archive
+	_, e = io.Copy(tarWriter, file)
 	if e != nil {
 		return e
 	}
 
-	return os.Remove(tarPath)
+	return nil
 }

Archive/Unarchive.go

@@ -2,64 +2,45 @@ package Archive
 
 import (
 	"archive/tar"
+	"bufio"
+	"bytes"
 	"compress/gzip"
 	"io"
 	"io/fs"
 	"os"
 	"path/filepath"
-	"strings"
 )
 
-func UnGzip(source, target string) error {
+func ExtractArchive(source, target string) error {
 	var (
-		reader, writer *os.File
-		archive        *gzip.Reader
-		e              error
+		inFile     *os.File
+		gzipReader *gzip.Reader
+		tarReader  *tar.Reader
+		e          error
 	)
 
-	reader, e = os.Open(source)
+	inFile, e = os.Open(source)
 	if e != nil {
 		return e
 	}
-	defer reader.Close()
+	defer inFile.Close()
 
-	archive, e = gzip.NewReader(reader)
-	if e != nil {
-		return e
-	}
-	defer archive.Close()
-
-	target = filepath.Join(target, archive.Name)
-
-	writer, e = os.Create(target)
-	if e != nil {
-		return e
-	}
-	defer writer.Close()
+	gzipReader, e = gzip.NewReader(inFile)
+	defer gzipReader.Close()
+	tarReader = tar.NewReader(gzipReader)
 
-	_, e = io.Copy(writer, archive)
-	return e
+	return extractFromArchive(tarReader, target)
 }
 
-func Untar(tarball, target string) error {
+func extractFromArchive(tarReader *tar.Reader, target string) error {
 	var (
-		reader    *os.File
-		tarReader *tar.Reader
-		header    *tar.Header
-		info      fs.FileInfo
-		file      *os.File
-		path      string
-		e         error
+		header         *tar.Header
+		info           fs.FileInfo
+		file           *os.File
+		path, basePath string
+		e              error
 	)
 
-	reader, e = os.Open(tarball)
-	if e != nil {
-		return e
-	}
-
-	defer reader.Close()
-	tarReader = tar.NewReader(reader)
-
 	for {
 		header, e = tarReader.Next()
 		if e == io.EOF {
@@ -72,6 +53,10 @@ func Untar(tarball, target string) error {
 		path = filepath.Join(target, header.Name)
 
 		info = header.FileInfo()
+		if filepath.Base(info.Name()) == "manifest.yml" {
+			continue
+		}
+
 		if info.IsDir() {
 			e = os.MkdirAll(path, info.Mode())
 			if e != nil {
@@ -80,7 +65,20 @@ func Untar(tarball, target string) error {
 			continue
 		}
 
-		file, e = os.OpenFile(path, os.O_CREATE|os.O_TRUNC|os.O_WRONLY, info.Mode())
+		basePath, e = filepath.Abs(filepath.Dir(path))
+		if e != nil {
+			return e
+		}
+
+		_, e = os.Stat(basePath)
+		if os.IsNotExist(e) {
+			e = os.MkdirAll(basePath, info.Mode())
+			if e != nil {
+				return e
+			}
+		}
+
+		file, e = os.OpenFile(path, os.O_CREATE|os.O_RDWR, info.Mode())
 		if e != nil {
 			return e
 		}
@@ -94,23 +92,60 @@ func Untar(tarball, target string) error {
 	}
 
 	return nil
+
 }
 
-func UntarGzip(source, target string) error {
+func ExtractManifestFile(source string) (string, error) {
 	var (
-		tarPath string = strings.ReplaceAll(source, ".gz", "")
-		e       error
+		inFile     *os.File
+		gzipReader *gzip.Reader
+		tarReader  *tar.Reader
+		e          error
 	)
 
-	e = UnGzip(source, tarPath)
+	inFile, e = os.Open(source)
 	if e != nil {
-		return e
+		return "", e
 	}
+	defer inFile.Close()
 
-	e = Untar(tarPath, target)
-	if e != nil {
-		return e
+	gzipReader, e = gzip.NewReader(inFile)
+	defer gzipReader.Close()
+	tarReader = tar.NewReader(gzipReader)
+
+	return extractManifestFromArchive(tarReader)
+}
+
+func extractManifestFromArchive(tarReader *tar.Reader) (string, error) {
+	var (
+		header         *tar.Header
+		info           fs.FileInfo
+		manifestWriter *bufio.Writer
+		manifestBytes  bytes.Buffer
+		e              error
+	)
+
+	for {
+		header, e = tarReader.Next()
+		if e == io.EOF {
+			break
+		}
+		if e != nil {
+			return manifestBytes.String(), e
+		}
+
+		info = header.FileInfo()
+		if filepath.Base(info.Name()) != "manifest.yml" {
+			continue
+		}
+
+		manifestWriter = bufio.NewWriter(&manifestBytes)
+
+		_, e = io.Copy(manifestWriter, tarReader)
+		if e != nil {
+			return manifestBytes.String(), e
+		}
 	}
 
-	return os.Remove(tarPath)
+	return manifestBytes.String(), nil
 }

Client/Database/Init.go

@@ -32,7 +32,7 @@ func init() {
 	}
 }
 
-func InitDB() error {
+func InitBoltDB() error {
 	var (
 		tx *bolt.Tx
 		e  error
@@ -58,3 +58,53 @@ func InitDB() error {
 
 	return e
 }
+
+func InitSqlite3DB() error {
+	var (
+		stmt *sql.Stmt
+		e    error
+	)
+
+	stmt, e = DB.Prepare(`
+CREATE TABLE IF NOT EXISTS installed_packages (
+	id INTEGER PRIMARY KEY AUTOINCREMENT,
+	name VARCHAR(64) NOT NULL,
+	version VARCHAR(64) NOT NULL,
+	installed_at INTEGER NOT NULL
+)
+`)
+	if e != nil {
+		return e
+	}
+
+	_, e = stmt.Exec()
+	if e != nil {
+		return e
+	}
+
+	stmt, e = DB.Prepare(`
+CREATE TABLE IF NOT EXISTS dependancy_linker (
+	id INTEGER PRIMARY KEY AUTOINCREMENT,
+	package_id INTEGER,
+	dependancy_id INTEGER,
+	FOREIGN KEY(package_id) REFERENCES installed_packages(id),
+	FOREIGN KEY(dependancy_id) REFERENCES installed_packages(id)
+)
+`)
+	if e != nil {
+		return e
+	}
+
+	_, e = stmt.Exec()
+	return e
+}
+
+func InitDB() error {
+	var e error
+	e = InitBoltDB()
+	if e != nil {
+		return e
+	}
+
+	return InitSqlite3DB()
+}

Client/Database/InstalledPkgs.go

@@ -0,0 +1,61 @@
+package Database
+
+import (
+	"database/sql"
+	"time"
+
+	_ "github.com/mattn/go-sqlite3"
+)
+
+func IsPackageInstalled(name, version string) (int64, error) {
+	var (
+		row *sql.Row
+		id  int64
+		e   error
+	)
+
+	row = DB.QueryRow(`
+SELECT id FROM installed_packages WHERE name = ? AND version = ?;
+	`, name, version)
+
+	e = row.Scan(&id)
+	return id, e
+}
+
+func InsertPackage(name, version string, depIds []int64) error {
+	var (
+		stmt   *sql.Stmt
+		result sql.Result
+		pkgId  int64
+		depId  int64
+		e      error
+	)
+
+	stmt, e = DB.Prepare("INSERT INTO installed_packages(name, version, installed_at) VALUES(?,?,?)")
+	if e != nil {
+		return e
+	}
+
+	result, e = stmt.Exec(name, version, time.Now().Unix())
+	if e != nil {
+		return e
+	}
+	pkgId, e = result.LastInsertId()
+	if e != nil {
+		return e
+	}
+
+	for _, depId = range depIds {
+		stmt, e = DB.Prepare("INSERT INTO dependancy_linker(package_id, dependancy_id) VALUES(?,?)")
+		if e != nil {
+			return e
+		}
+
+		_, e = stmt.Exec(pkgId, depId)
+		if e != nil {
+			return e
+		}
+	}
+
+	return e
+}

Client/Filesystem/CommitFiles.go

@@ -42,7 +42,6 @@ func CommitFiles() error {
 			if e != nil {
 				return e
 			}
-			ProgressBar.CloseBar(bar)
 		}
 
 		return nil

Client/Filesystem/FilesystemDiff.go

@@ -220,8 +220,6 @@ func GetFilesystemDiff(root string) (FilesystemStatus, error) {
 			return nil
 		})
 
-		ProgressBar.CloseBar(bar)
-
 		return nil
 	})
 

Client/Filesystem/PickFiles.go

@@ -92,7 +92,6 @@ func pickFilesRecursive(rootPath string) error {
 			}
 		}
 
-		ProgressBar.CloseBar(bar)
 		return nil
 	})
 

Client/Package/CreatePackage.go

@@ -28,12 +28,15 @@ func writeManifestFile(path, name, version string) error {
 		e        error
 	)
 
-	manifest = fmt.Sprintf(`name: "%s"
-version: "%s"
-dependancies:
-	- pkg1: v1.0.0
-	- pkg2: v1.0.0
-`, name, version)
+	manifest, e = Manifest{
+		Name:         name,
+		Version:      version,
+		Dependancies: make(map[string]string),
+	}.CreateManifestString()
+
+	if e != nil {
+		return e
+	}
 
 	filePath = filepath.Join(path, "manifest.yml")
 
@@ -58,7 +61,6 @@ func CreatePackage() error {
 		pkgName        string
 		pkgVersion     string
 		pkgNameVersion string
-		tmpDir         string
 		index          int
 		e              error
 	)
@@ -125,22 +127,15 @@ func CreatePackage() error {
 
 	pkgNameVersion = fmt.Sprintf("%s-%s", pkgName, pkgVersion)
 
-	tmpDir, e = ioutil.TempDir("/tmp", pkgNameVersion)
+	e = writeManifestFile("/tmp/", pkgName, pkgVersion)
 	if e != nil {
 		return e
 	}
-	defer os.RemoveAll(tmpDir)
 
-	for _, file := range pkgFiles {
-		Filesystem.CopyFile(file, filepath.Join(tmpDir, file))
-	}
-
-	e = writeManifestFile(tmpDir, pkgName, pkgVersion)
-	if e != nil {
-		return e
-	}
+	// TODO: Write this file to a better spot?
+	pkgFiles = append(pkgFiles, "/tmp/manifest.yml")
 
-	e = Archive.TarGzip(tmpDir, pkgNameVersion+".tar.gz")
+	e = Archive.CreateArchive(pkgFiles, pkgNameVersion+".tar.gz")
 	if e != nil {
 		return e
 	}

Client/Package/InstallPackage.go

@@ -6,13 +6,36 @@ import (
 	"os"
 
 	"PackageManager/Archive"
+	"PackageManager/Client/Database"
 	"PackageManager/Variables"
 )
 
+func CheckPackageDependancies(deps map[string]string) ([]int64, error) {
+	var (
+		name, version string
+		depIds        []int64
+		id            int64
+		e             error
+	)
+
+	for name, version = range deps {
+		id, e = Database.IsPackageInstalled(name, version)
+		if e != nil {
+			return depIds, e
+		}
+		depIds = append(depIds, id)
+	}
+
+	return depIds, e
+}
+
 func InstallPackage(pkgs []string) error {
 	var (
-		pkg string
-		e   error
+		manifest Manifest
+		depIds   []int64
+		pkg      string
+		mStr     string
+		e        error
 	)
 
 	for _, pkg = range pkgs {
@@ -27,7 +50,35 @@ func InstallPackage(pkgs []string) error {
 			"Installing %s...\n",
 			pkg,
 		)
-		e = Archive.UntarGzip(pkg, Variables.RootDir)
+
+		mStr, e = Archive.ExtractManifestFile(pkg)
+		if e != nil {
+			return e
+		}
+
+		manifest, e = ParseManifestFile(mStr)
+		if e != nil {
+			return e
+		}
+
+		if !Variables.IgnoreDepsCheck {
+			depIds, e = CheckPackageDependancies(manifest.Dependancies)
+			if e != nil {
+				// TODO: Search for package on error
+				return e
+			}
+		}
+
+		e = Archive.ExtractArchive(pkg, Variables.RootDir)
+		if e != nil {
+			return e
+		}
+
+		e = Database.InsertPackage(manifest.Name, manifest.Version, depIds)
+		if e != nil {
+			return e
+		}
+
 		fmt.Printf(
 			"%s successfully installed\n",
 			pkg,

Client/Package/Manifest.go

@@ -0,0 +1,33 @@
+package Package
+
+import (
+	yaml "gopkg.in/yaml.v2"
+)
+
+type Manifest struct {
+	Name         string            `yaml:"name"`
+	Version      string            `yaml:"version"`
+	Dependancies map[string]string `yaml:"dependancies,flow"`
+}
+
+func ParseManifestFile(manifest string) (Manifest, error) {
+	var (
+		m Manifest = Manifest{}
+		e error
+	)
+
+	e = yaml.Unmarshal([]byte(manifest), &m)
+	return m, e
+}
+
+func (m Manifest) CreateManifestString() (string, error) {
+	var (
+		mByte []byte
+		e     error
+	)
+	mByte, e = yaml.Marshal(&m)
+	if e != nil {
+		return "", e
+	}
+	return string(mByte), e
+}

Client/ProgressBar/Bar.go

@@ -29,7 +29,3 @@ func InitBar(name string, total int) *mpb.Bar {
 
 	return bar
 }
-
-func CloseBar(bar *mpb.Bar) {
-	bar.Abort(false)
-}

Client/main.go

@@ -36,6 +36,12 @@ Filesystem diff:
 	
 	-Cp | -create-pkg
 		Create package from fs diff
+	
+	-Il | -install-local
+		Install package from local tarball
+
+	-ignore-deps-check
+		Skip dependancies check
 `
 	helpMsg = fmt.Sprintf(helpMsg, os.Args[0])
 	fmt.Println(helpMsg)
@@ -52,8 +58,11 @@ func main() {
 		resetAddedFilesFlag       bool
 		resetAddedFilesFlagLong   bool
 
-		createPackageFlag     bool
-		createPackageFlagLong bool
+		createPackageFlag           bool
+		createPackageFlagLong       bool
+		installLocalPackageFlag     bool
+		installLocalPackageFlagLong bool
+		ignoreDepsCheckFlag         bool
 
 		verboseOutputFlag     bool
 		verboseOutputFlagLong bool
@@ -74,6 +83,9 @@ func main() {
 		panic(e)
 	}
 
+	defer Database.DB.Close()
+	defer Database.FsDB.Close()
+
 	// TODO: Rework usage function
 
 	// Initialise flags
@@ -95,16 +107,21 @@ func main() {
 	flag.BoolVar(&createPackageFlag, "Cp", false, "Create package from fs diff")
 	flag.BoolVar(&createPackageFlagLong, "create-pkg", false, "Create package from fs diff")
 
+	flag.BoolVar(&installLocalPackageFlag, "Il", false, "Install package from local tarball")
+	flag.BoolVar(&installLocalPackageFlagLong, "install-local", false, "Install package from local tarball")
+
+	flag.BoolVar(&ignoreDepsCheckFlag, "ignore-deps-check", false, "Ignore dependancies check")
+
 	flag.Parse()
 
 	Variables.VerboseOutput = verboseOutputFlag || verboseOutputFlagLong
+	Variables.IgnoreDepsCheck = ignoreDepsCheckFlag
 
 	if getFilesystemDiffFlag || getFilesystemDiffFlagLong {
 		var rootPath string = Variables.RootDir
 		if len(flag.Args()) > 1 {
-			// TODO: Fix this msg
-			fmt.Println(Color.Fatal("Option takes one optional argument"))
 			flag.Usage()
+			fmt.Println(Color.Fatal("Option takes one optional argument"))
 			return
 		}
 
@@ -121,7 +138,7 @@ func main() {
 	}
 
 	if addFileDiffFlag || addFileDiffFlagLong {
-		if len(flag.Args()) > 1 && len(flag.Args()) < 1 {
+		if len(flag.Args()) > 1 || len(flag.Args()) < 1 {
 			fmt.Println(Color.Fatal("Must supply one argument"))
 			flag.Usage()
 			return
@@ -157,16 +174,13 @@ func main() {
 		return
 	}
 
-	/*
-
-		if installLocalPackageFlag || installLocalPackageFlagLong {
-			e = Package.InstallPackage(flag.Args())
-			if e != nil {
-				panic(e)
-			}
-			return
+	if installLocalPackageFlag || installLocalPackageFlagLong {
+		e = Package.InstallPackage(flag.Args())
+		if e != nil {
+			panic(e)
 		}
-	*/
+		return
+	}
 
 	flag.Usage()
 	fmt.Println(Color.Fatal("Nothing to do"))

Variables/Variables.go

@@ -12,7 +12,9 @@ const (
 var (
 	Editor string = "vi"
 
-	VerboseOutput     bool   = false
+	VerboseOutput   bool = false
+	IgnoreDepsCheck bool = false
+
 	RootDir           string = "/"
 	FsHashPicksBucket []byte = []byte("FilesystemPicks")
 	FsHashIndexBucket []byte = []byte("FilesystemIndex")

go.mod

@@ -2,4 +2,13 @@ module PackageManager
 
 go 1.16
 
-require github.com/mattn/go-sqlite3 v1.14.7
+require (
+	github.com/VividCortex/ewma v1.2.0 // indirect
+	github.com/mattn/go-isatty v0.0.13 // indirect
+	github.com/mattn/go-sqlite3 v1.14.8
+	github.com/vbauerster/mpb v3.4.0+incompatible
+	go.etcd.io/bbolt v1.3.6
+	golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97 // indirect
+	golang.org/x/sync v0.0.0-20210220032951-036812b2e83c
+	gopkg.in/yaml.v2 v2.4.0
+)

go.sum

@@ -1,2 +1,28 @@
-github.com/mattn/go-sqlite3 v1.14.7 h1:fxWBnXkxfM6sRiuH3bqJ4CfzZojMOLVc0UTsTglEghA=
-github.com/mattn/go-sqlite3 v1.14.7/go.mod h1:NyWgC/yNuGj7Q9rpYnZvas74GogHl5/Z4A/KQRfk6bU=
+github.com/VividCortex/ewma v1.2.0 h1:f58SaIzcDXrSy3kWaHNvuJgJ3Nmz59Zji6XoJR/q1ow=
+github.com/VividCortex/ewma v1.2.0/go.mod h1:nz4BbCtbLyFDeC9SUHbtcT5644juEuWfUAUnGx7j5l4=
+github.com/mattn/go-isatty v0.0.13 h1:qdl+GuBjcsKKDco5BsxPJlId98mSWNKqYA+Co0SC1yA=
+github.com/mattn/go-isatty v0.0.13/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
+github.com/mattn/go-sqlite3 v1.14.8 h1:gDp86IdQsN/xWjIEmr9MF6o9mpksUgh0fu+9ByFxzIU=
+github.com/mattn/go-sqlite3 v1.14.8/go.mod h1:NyWgC/yNuGj7Q9rpYnZvas74GogHl5/Z4A/KQRfk6bU=
+github.com/vbauerster/mpb v3.4.0+incompatible h1:mfiiYw87ARaeRW6x5gWwYRUawxaW1tLAD8IceomUCNw=
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