all: rename functions, deprecate old ones

Rename get_by_* to user_by_* and get_all to users. users() now can return errors.

README.md

@@ -1,6 +1,6 @@
 # Access to the UNIX Password Database
 
-`pwdb` module provides thread-safe access to the UNIX user account and password
+`pwd` module provides thread-safe access to the UNIX user account and password
 database.
 
 See [passwd(5)](https://man7.org/linux/man-pages/man5/passwd.5.html),

pwd.c.v

@@ -1,24 +1,24 @@
 @[has_globals]
-module pwdb
+module pwd
 
 import sync
 
 $if windows {
-	$compile_error('pwdb: MS Windows is not supported')
+	$compile_error('pwd: MS Windows is not supported')
 }
 
 #include <errno.h>
 #include <pwd.h>
 
-__global pwdb_mutex &sync.Mutex
+__global pwd_mutex &sync.Mutex
 
 fn init() {
-	pwdb_mutex = sync.new_mutex()
+	pwd_mutex = sync.new_mutex()
 }
 
 fn cleanup() {
-	pwdb_mutex.destroy()
-	unsafe { free(pwdb_mutex) }
+	pwd_mutex.destroy()
+	unsafe { free(pwd_mutex) }
 }
 
 struct C.passwd {
@@ -76,10 +76,17 @@ fn make_error(name string, uid int) IError {
 
 // get_by_uid returns the passwd database entry by user ID.
 // If the entry is not found, the EntryNotFoundError error will be returned.
+@[deprecated: 'use user_by_uid() instead']
 pub fn get_by_uid(uid int) !Passwd {
-	pwdb_mutex.lock()
+	return user_by_uid(uid)!
+}
+
+// user_by_uid returns the passwd database entry by user ID.
+// If the entry is not found, the EntryNotFoundError error will be returned.
+pub fn user_by_uid(uid int) !Passwd {
+	pwd_mutex.lock()
 	defer {
-		pwdb_mutex.unlock()
+		pwd_mutex.unlock()
 	}
 	pw := C.getpwuid(uid)
 	if isnil(pw) {
@@ -88,12 +95,19 @@ pub fn get_by_uid(uid int) !Passwd {
 	return make_passwd(pw)
 }
 
-// get_by_uid returns the passwd database entry by user name.
+// get_by_name returns the passwd database entry by user name.
 // If the entry is not found, the EntryNotFoundError error will be returned.
+@[deprecated: 'use user_by_name() instead']
 pub fn get_by_name(name string) !Passwd {
-	pwdb_mutex.lock()
+	return user_by_name(name)!
+}
+
+// user_by_name returns the passwd database entry by user name.
+// If the entry is not found, the EntryNotFoundError error will be returned.
+pub fn user_by_name(name string) !Passwd {
+	pwd_mutex.lock()
 	defer {
-		pwdb_mutex.unlock()
+		pwd_mutex.unlock()
 	}
 	pw := C.getpwnam(&char(name.str))
 	if isnil(pw) {
@@ -103,16 +117,26 @@ pub fn get_by_name(name string) !Passwd {
 }
 
 // get_all returns all entries from passwd database in arbitrary order.
+@[deprecated: 'use users() instead']
 pub fn get_all() []Passwd {
+	return users() or { []Passwd{} }
+}
+
+// users returns all entries from passwd database in arbitrary order.
+pub fn users() ![]Passwd {
 	mut pwds := []Passwd{}
-	pwdb_mutex.lock()
+	pwd_mutex.lock()
 	C.setpwent()
 	defer {
 		C.endpwent()
-		pwdb_mutex.unlock()
+		pwd_mutex.unlock()
 	}
 	for {
 		pw := C.getpwent()
+		err := make_error('', -1)
+		if err.code() != 0 {
+			return err
+		}
 		if isnil(pw) {
 			break
 		}

pwd_test.v

@@ -0,0 +1,17 @@
+// vtest build: !windows
+import pwd
+
+fn test_user_by_uid() {
+	pw := pwd.user_by_uid(0)!
+	assert pw.name == 'root'
+}
+
+fn test_user_by_name() {
+	pw := pwd.user_by_name('root')!
+	assert pw.uid == 0
+}
+
+fn test_users() {
+	pws := pwd.users()!
+	assert pws.len > 0
+}

pwdb_test.v

@@ -1,17 +0,0 @@
-// vtest build: !windows
-import pwdb
-
-fn test_get_by_uid() {
-	pw := pwdb.get_by_uid(0)!
-	assert pw.name == 'root'
-}
-
-fn test_get_by_name() {
-	pw := pwdb.get_by_name('root')!
-	assert pw.uid == 0
-}
-
-fn test_get_all() {
-	pws := pwdb.get_all()
-	assert pws.len > 0
-}

v.mod

@@ -1,7 +1,7 @@
 Module {
-	name: 'pwdb'
+	name: 'pwd'
 	description: 'Access to the UNIX password database'
-	version: '0.1.0'
+	version: '0.2.0'
 	license: 'Unlicense'
 	dependencies: []
 }