自定义控制台密钥映射-无法打开包含我们的文件

Question

我想做一个自定义控制台密钥映射，如所描述的在Arch-Wiki

这是我的档案：

# /usr/local/share/kbd/keymaps/personal.map

include "us"

# swap Caps_Lock and Escape
keycode   1 = Caps_Lock
keycode  58 = Escape

# swap left Alt and Control
keycode  29 = Alt
keycode  56 = Control

# German stuff
keymaps 0-3
keycode 22 = u U udiaeresis Udiaeresis
keycode 24 = o O odiaeresis Odiaeresis
keycode 30 = a A adiaeresis Adiaeresis
keycode 31 = s S ssharp

当我尝试用loadkeys /usr/local/share/kbd/keymaps/personal.map加载它时，我得到：

cannot open include file us
syntax error, unexpected ERROR

当然，us是localectl list-keymaps的结果。

如果我像Arch示例中那样用include "us"替换include "linux-with-two-alt-keys"，它确实会像预期的那样工作。

为什么我不能包括us地图？

Answer 1

快速strace loadkeys /usr/local/share/kbd/keymaps/personal.map显示，只搜索include目录和当前工作目录，以查找要包含的文件，并可以通过locate进行检查：

$ sudo updatedb
$ locate -r "keymaps.*\.inc$"
/usr/share/kbd/keymaps/i386/include/azerty-layout.inc
/usr/share/kbd/keymaps/i386/include/compose.inc
/usr/share/kbd/keymaps/i386/include/euro1.inc
/usr/share/kbd/keymaps/i386/include/linux-keys-bare.inc
/usr/share/kbd/keymaps/i386/include/linux-keys-extd.inc
/usr/share/kbd/keymaps/i386/include/linux-with-alt-and-altgr.inc
/usr/share/kbd/keymaps/i386/include/linux-with-modeshift-altgr.inc
/usr/share/kbd/keymaps/i386/include/linux-with-two-alt-keys.inc
/usr/share/kbd/keymaps/i386/include/qwerty-layout.inc
/usr/share/kbd/keymaps/i386/include/qwertz-layout.inc
/usr/share/kbd/keymaps/mac/include/apple-a1048-base.inc
/usr/share/kbd/keymaps/mac/include/apple-a1243-fn-reverse.inc
/usr/share/kbd/keymaps/mac/include/apple-a1243-fn.inc
/usr/share/kbd/keymaps/mac/include/mac-azerty-layout.inc
/usr/share/kbd/keymaps/mac/include/mac-linux-keys-bare.inc
/usr/share/kbd/keymaps/mac/include/mac-qwerty-layout.inc
/usr/share/kbd/keymaps/mac/include/mac-qwertz-layout.inc

实际上，所有.inc文件都驻留在名为include的目录中。

我无法找到kbd手册中包含机制的解释，但也可以通过阅读源代码来推断：

static const char *const include_dirpath0[] = {
    "",
    NULL
};
static const char *const include_dirpath1[] = {
    "",
    "../include/",
    "../../include/",
    NULL
};
static const char *const include_dirpath3[] = {
    DATADIR "/" KEYMAPDIR "/include/",
    DATADIR "/" KEYMAPDIR "/i386/include/",
    DATADIR "/" KEYMAPDIR "/mac/include/",
    NULL
};

您还可以看到.inc后缀自动添加到包含的文件中。：

static const char *const include_suffixes[] = {
    "",
    ".inc",
    NULL
};

因此，要使loadkeys /usr/local/share/kbd/keymaps/personal.map成为您需要的：

zcat /usr/share/kbd/keymaps/i386/qwerty/us.map.gz > /usr/local/share/kbd/keymaps/us.inc