Lots of restructuring for repo backend

.gitignore

@@ -14,3 +14,4 @@ vieter.log
 
 # External lib; gets added by Makefile
 libarchive-*
+test/

README.md

@@ -28,3 +28,12 @@ daemon to start builds, which are then uploaded to the server's repository. The
 server also allows for non-agents to upload packages, as long as they have the
 required secrets. This allows me to also develop non-git packages, such as my
 terminal, & upload them to the servers using CI.
+
+## Directory Structure
+
+The data directory consists of three main directories:
+
+* `downloads` - This is where packages are initially downloaded. Because vieter moves files from this folder to the `pkgs` folder, these two folders should best be on the same drive
+* `pkgs` - This is where approved package files are stored.
+* `repos` - Each repository gets a subfolder here. The subfolder contains the uncompressed contents of the db file.
+    * Each repo subdirectory contains the compressed db & files archive for the repository, alongside a directory called `files` which contains the uncompressed contents.

src/archive/archive.v

@@ -2,7 +2,8 @@ module archive
 
 import os
 
-pub fn pkg_info_string(pkg_path string) ?string {
+// Returns the .PKGINFO file's contents & the list of files.
+pub fn pkg_info(pkg_path string) ?(string, []string) {
 	if !os.is_file(pkg_path) {
 		return error("'$pkg_path' doesn't exist or isn't a file.")
 	}
@@ -26,18 +27,24 @@ pub fn pkg_info_string(pkg_path string) ?string {
 
 	// We iterate over every header in search of the .PKGINFO one
 	mut buf := voidptr(0)
+	mut files := []string{}
 	for C.archive_read_next_header(a, &entry) == C.ARCHIVE_OK {
-		if C.strcmp(C.archive_entry_pathname(entry), c'.PKGINFO') == 0 {
+		pathname := C.archive_entry_pathname(entry)
+
+		unsafe {
+			files << cstring_to_vstring(pathname)
+		}
+
+		if C.strcmp(pathname, c'.PKGINFO') == 0 {
 			size := C.archive_entry_size(entry)
 
 			// TODO can this unsafe block be avoided?
 			buf = unsafe { malloc(size) }
 			C.archive_read_data(a, voidptr(buf), size)
-			break
 		} else {
 			C.archive_read_data_skip(a)
 		}
 	}
 
-	return unsafe { cstring_to_vstring(&char(buf)) }
+	return unsafe { cstring_to_vstring(&char(buf)) }, files
 }

src/main.v

@@ -4,8 +4,9 @@ import web
 import os
 import log
 import io
-import repo
+import pkg
 import archive
+import repo
 
 const port = 8000
 
@@ -54,59 +55,62 @@ fn reader_to_file(mut reader io.BufferedReader, length int, path string) ? {
 	}
 }
 
-fn main2() {
-	// Configure logger
-	log_level_str := os.getenv_opt('LOG_LEVEL') or { 'WARN' }
-	log_level := log.level_from_tag(log_level_str) or {
-		exit_with_message(1, 'Invalid log level. The allowed values are FATAL, ERROR, WARN, INFO & DEBUG.')
-	}
-	log_file := os.getenv_opt('LOG_FILE') or { 'vieter.log' }
+// fn main2() {
+// 	// Configure logger
+// 	log_level_str := os.getenv_opt('LOG_LEVEL') or { 'WARN' }
+// 	log_level := log.level_from_tag(log_level_str) or {
+// 		exit_with_message(1, 'Invalid log level. The allowed values are FATAL, ERROR, WARN, INFO & DEBUG.')
+// 	}
+// 	log_file := os.getenv_opt('LOG_FILE') or { 'vieter.log' }
 
-	mut logger := log.Log{
-		level: log_level
-	}
+// 	mut logger := log.Log{
+// 		level: log_level
+// 	}
 
-	logger.set_full_logpath(log_file)
-	logger.log_to_console_too()
+// 	logger.set_full_logpath(log_file)
+// 	logger.log_to_console_too()
 
-	defer {
-		logger.info('Flushing log file')
-		logger.flush()
-		logger.close()
-	}
+// 	defer {
+// 		logger.info('Flushing log file')
+// 		logger.flush()
+// 		logger.close()
+// 	}
 
-	// Configure web server
-	key := os.getenv_opt('API_KEY') or { exit_with_message(1, 'No API key was provided.') }
-	repo_dir := os.getenv_opt('REPO_DIR') or {
-		exit_with_message(1, 'No repo directory was configured.')
-	}
+// 	// Configure web server
+// 	key := os.getenv_opt('API_KEY') or { exit_with_message(1, 'No API key was provided.') }
+// 	repo_dir := os.getenv_opt('REPO_DIR') or {
+// 		exit_with_message(1, 'No repo directory was configured.')
+// 	}
 
-	repo := repo.Repo{
-		dir: repo_dir
-		name: db_name
-	}
+// 	repo := repo.Repo{
+// 		dir: repo_dir
+// 		name: db_name
+// 	}
 
-	// We create the upload directory during startup
-	if !os.is_dir(repo.pkg_dir()) {
-		os.mkdir_all(repo.pkg_dir()) or {
-			exit_with_message(2, "Failed to create repo directory '$repo.pkg_dir()'.")
-		}
+// 	// We create the upload directory during startup
+// 	if !os.is_dir(repo.pkg_dir()) {
+// 		os.mkdir_all(repo.pkg_dir()) or {
+// 			exit_with_message(2, "Failed to create repo directory '$repo.pkg_dir()'.")
+// 		}
 
-		logger.info("Created package directory '$repo.pkg_dir()'.")
-	}
+// 		logger.info("Created package directory '$repo.pkg_dir()'.")
+// 	}
 
-	web.run(&App{
-		logger: logger
-		api_key: key
-		repo: repo
-	}, port)
-}
+// 	web.run(&App{
+// 		logger: logger
+// 		api_key: key
+// 		repo: repo
+// 	}, port)
+// }
 
 fn main() {
 	// archive.list_filenames()
-	info := repo.get_pkg_info('test/jjr-joplin-desktop-2.6.10-4-x86_64.pkg.tar.zst') or {
+	res := pkg.read_pkg('test/jjr-joplin-desktop-2.6.10-4-x86_64.pkg.tar.zst') or {
 		eprintln(err.msg)
 		return
 	}
-	println(info)
+	// println(info)
+	println(res.info)
+	print(res.files)
+	println(res.info.to_desc())
 }

src/pkg.v

@@ -1,8 +1,14 @@
-module repo
+module pkg
 
 import archive
 import time
 
+struct Pkg {
+pub:
+	info  PkgInfo  [required]
+	files []string [required]
+}
+
 struct PkgInfo {
 mut:
 	// Single values
@@ -20,7 +26,6 @@ mut:
 	sha256sum   string
 	pgpsig      string
 	pgpsigsize  i64
-
 	// Array values
 	groups       []string
 	licenses     []string
@@ -33,13 +38,9 @@ mut:
 	checkdepends []string
 }
 
-pub fn get_pkg_info(pkg_path string) ?PkgInfo {
-	pkg_info_str := archive.pkg_info_string(pkg_path) ?
+fn parse_pkg_info_string(pkg_info_str &string) ?PkgInfo {
 	mut pkg_info := PkgInfo{}
 
-	mut i := 0
-	mut j := 0
-
 	// Iterate over the entire string
 	for line in pkg_info_str.split_into_lines() {
 		// Skip any comment lines
@@ -71,7 +72,6 @@ pub fn get_pkg_info(pkg_path string) ?PkgInfo {
 			'sha256sum' { pkg_info.sha256sum = value }
 			'pgpsig' { pkg_info.pgpsig = value }
 			'pgpsigsize' { pkg_info.pgpsigsize = value.int() }
-
 			// Array values
 			'group' { pkg_info.groups << value }
 			'license' { pkg_info.licenses << value }
@@ -88,3 +88,21 @@ pub fn get_pkg_info(pkg_path string) ?PkgInfo {
 
 	return pkg_info
 }
+
+pub fn read_pkg(pkg_path string) ?Pkg {
+	pkg_info_str, files := archive.pkg_info(pkg_path) ?
+	pkg_info := parse_pkg_info_string(pkg_info_str) ?
+
+	return Pkg{
+		info: pkg_info
+		files: files
+	}
+}
+
+// Represent a PkgInfo struct as a desc file
+pub fn (p &PkgInfo) to_desc() string {
+	// TODO calculate md5 & sha256 instead of believing the file
+	mut desc := ''
+
+	return desc
+}

src/repo.v

@@ -11,23 +11,35 @@ pub struct Dummy {
 	x int
 }
 
-// Handles management of a repository. Package files are stored in '$dir/pkgs'
-// & moved there if necessary.
+// This struct manages a single repository.
 pub struct Repo {
 mut:
 	mutex shared Dummy
 pub:
-	dir  string [required]
-	name string [required]
+	// Where to store repository files; should exist
+	repo_dir string [required]
+	// Where to find packages; packages are expected to all be in the same directory
+	pkg_dir string [required]
 }
 
-pub fn (r &Repo) pkg_dir() string {
-	return os.join_path_single(r.dir, repo.pkgs_subpath)
+// Returns whether the repository contains the given package.
+pub fn (r &Repo) contains(pkg string) bool {
+	return os.exists(os.join_path(r.repo_dir, 'files', pkg))
+}
+
+// Adds the given package to the repo. If false, the package was already
+// present in the repository.
+pub fn (r &Repo) add(pkg string) ?bool {
+	return false
+}
+
+// Re-generate the db & files archives.
+fn (r &Repo) genenerate() ? {
 }
 
 // Returns path to the given package, prepended with the repo's path.
 pub fn (r &Repo) pkg_path(pkg string) string {
-	return os.join_path(r.dir, repo.pkgs_subpath, pkg)
+	return os.join_path_single(r.pkg_dir, pkg)
 }
 
 pub fn (r &Repo) exists(pkg string) bool {
@@ -36,7 +48,7 @@ pub fn (r &Repo) exists(pkg string) bool {
 
 // Returns the full path to the database file
 pub fn (r &Repo) db_path() string {
-	return os.join_path_single(r.dir, '${r.name}.tar.gz')
+	return os.join_path_single(r.repo_dir, 'repo.tar.gz')
 }
 
 pub fn (r &Repo) add_package(pkg_path string) ? {

src/routes.v

@@ -28,62 +28,67 @@ fn (mut app App) get_root(filename string) web.Result {
 	mut full_path := ''
 
 	if is_pkg_name(filename) {
-		full_path = os.join_path_single(app.repo.pkg_dir(), filename)
+		full_path = os.join_path_single(app.repo.pkg_dir, filename)
 	} else {
-		full_path = os.join_path_single(app.repo.dir, filename)
+		full_path = os.join_path_single(app.repo.repo_dir, filename)
 	}
 
 	return app.file(full_path)
 }
 
-['/pkgs/:pkg'; put]
-fn (mut app App) put_package(pkg string) web.Result {
-	if !app.is_authorized() {
-		return app.text('Unauthorized.')
-	}
-
-	if !is_pkg_name(pkg) {
-		app.lwarn("Invalid package name '$pkg'.")
-
-		return app.text('Invalid filename.')
-	}
-
-	if app.repo.exists(pkg) {
-		app.lwarn("Duplicate package '$pkg'")
-
-		return app.text('File already exists.')
-	}
-
-	pkg_path := app.repo.pkg_path(pkg)
-
-	if length := app.req.header.get(.content_length) {
-		app.ldebug("Uploading $length (${pretty_bytes(length.int())}) bytes to package '$pkg'.")
-
-		// This is used to time how long it takes to upload a file
-		mut sw := time.new_stopwatch(time.StopWatchOptions{ auto_start: true })
-
-		reader_to_file(mut app.reader, length.int(), pkg_path) or {
-			app.lwarn("Failed to upload package '$pkg'")
-
-			return app.text('Failed to upload file.')
-		}
-
-		sw.stop()
-		app.ldebug("Upload of package '$pkg' completed in ${sw.elapsed().seconds():.3}s.")
-	} else {
-		app.lwarn("Tried to upload package '$pkg' without specifying a Content-Length.")
-		return app.text("Content-Type header isn't set.")
-	}
-
-	app.repo.add_package(pkg_path) or {
-		app.lwarn("Failed to add package '$pkg' to database.")
-
-		os.rm(pkg_path) or { println('Failed to remove $pkg_path') }
-
-		return app.text('Failed to add package to repo.')
-	}
-
-	app.linfo("Added '$pkg' to repository.")
-
-	return app.text('Package added successfully.')
+// ['/pkgs/:pkg'; put]
+// fn (mut app App) put_package(pkg string) web.Result {
+// 	if !app.is_authorized() {
+// 		return app.text('Unauthorized.')
+// 	}
+
+// 	if !is_pkg_name(pkg) {
+// 		app.lwarn("Invalid package name '$pkg'.")
+
+// 		return app.text('Invalid filename.')
+// 	}
+
+// 	if app.repo.exists(pkg) {
+// 		app.lwarn("Duplicate package '$pkg'")
+
+// 		return app.text('File already exists.')
+// 	}
+
+// 	pkg_path := app.repo.pkg_path(pkg)
+
+// 	if length := app.req.header.get(.content_length) {
+// 		app.ldebug("Uploading $length (${pretty_bytes(length.int())}) bytes to package '$pkg'.")
+
+// 		// This is used to time how long it takes to upload a file
+// 		mut sw := time.new_stopwatch(time.StopWatchOptions{ auto_start: true })
+
+// 		reader_to_file(mut app.reader, length.int(), pkg_path) or {
+// 			app.lwarn("Failed to upload package '$pkg'")
+
+// 			return app.text('Failed to upload file.')
+// 		}
+
+// 		sw.stop()
+// 		app.ldebug("Upload of package '$pkg' completed in ${sw.elapsed().seconds():.3}s.")
+// 	} else {
+// 		app.lwarn("Tried to upload package '$pkg' without specifying a Content-Length.")
+// 		return app.text("Content-Type header isn't set.")
+// 	}
+
+// 	app.repo.add_package(pkg_path) or {
+// 		app.lwarn("Failed to add package '$pkg' to database.")
+
+// 		os.rm(pkg_path) or { println('Failed to remove $pkg_path') }
+
+// 		return app.text('Failed to add package to repo.')
+// 	}
+
+// 	app.linfo("Added '$pkg' to repository.")
+
+// 	return app.text('Package added successfully.')
+// }
+
+['/add'; put]
+pub fn (mut app App) add_package() web.Result {
+	return app.text('')
 }