Revert "all: rename module to pwdb"

This reverts commit 2d9ec0bf59.

The name `pwd` is still better, since it matches the name of the corresponding C header file.

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 {
@@ -77,9 +77,9 @@ 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.
 pub fn get_by_uid(uid int) !Passwd {
-	pwdb_mutex.lock()
+	pwd_mutex.lock()
 	defer {
-		pwdb_mutex.unlock()
+		pwd_mutex.unlock()
 	}
 	pw := C.getpwuid(uid)
 	if isnil(pw) {
@@ -91,9 +91,9 @@ pub fn get_by_uid(uid int) !Passwd {
 // get_by_uid returns the passwd database entry by user name.
 // If the entry is not found, the EntryNotFoundError error will be returned.
 pub fn get_by_name(name string) !Passwd {
-	pwdb_mutex.lock()
+	pwd_mutex.lock()
 	defer {
-		pwdb_mutex.unlock()
+		pwd_mutex.unlock()
 	}
 	pw := C.getpwnam(&char(name.str))
 	if isnil(pw) {
@@ -105,11 +105,11 @@ pub fn get_by_name(name string) !Passwd {
 // get_all returns all entries from passwd database in arbitrary order.
 pub fn get_all() []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()

pwd_test.v

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

v.mod

@@ -1,5 +1,5 @@
 Module {
-	name: 'pwdb'
+	name: 'pwd'
 	description: 'Access to the UNIX password database'
 	version: '0.1.0'
 	license: 'Unlicense'