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02/07: gnu: Add localed, extracted from systemd.


From: guix-commits
Subject: 02/07: gnu: Add localed, extracted from systemd.
Date: Fri, 5 Apr 2019 09:45:13 -0400 (EDT)

civodul pushed a commit to branch master
in repository guix.

commit f63861b5a61b2a9d2c17dbf88b24b5e8f0c5c111
Author: Ludovic Courtès <address@hidden>
Date:   Tue Apr 2 22:33:22 2019 +0200

    gnu: Add localed, extracted from systemd.
    
    * gnu/packages/freedesktop.scm (localed): New variable.
    * gnu/packages/patches/localed-xorg-keyboard.patch: New file.
    * gnu/local.mk (dist_patch_DATA): Add it.
---
 gnu/local.mk                                     |   1 +
 gnu/packages/freedesktop.scm                     | 146 ++++++++++
 gnu/packages/patches/localed-xorg-keyboard.patch | 322 +++++++++++++++++++++++
 3 files changed, 469 insertions(+)

diff --git a/gnu/local.mk b/gnu/local.mk
index cafea31..54882b3 100644
--- a/gnu/local.mk
+++ b/gnu/local.mk
@@ -937,6 +937,7 @@ dist_patch_DATA =                                           
\
   %D%/packages/patches/kdbusaddons-kinit-file-name.patch       \
   %D%/packages/patches/khmer-use-libraries.patch                \
   %D%/packages/patches/libziparchive-add-includes.patch                \
+  %D%/packages/patches/localed-xorg-keyboard.patch             \
   %D%/packages/patches/kiki-level-selection-crash.patch                \
   %D%/packages/patches/kiki-makefile.patch                     \
   %D%/packages/patches/kiki-missing-includes.patch             \
diff --git a/gnu/packages/freedesktop.scm b/gnu/packages/freedesktop.scm
index 46971e0..e3cf88b 100644
--- a/gnu/packages/freedesktop.scm
+++ b/gnu/packages/freedesktop.scm
@@ -307,6 +307,152 @@ the org.freedesktop.login1 interface over the system bus, 
allowing other parts
 of a the system to know what users are logged in, and where.")
     (license license:lgpl2.1+)))
 
+(define-public localed
+  ;; XXX: This package is extracted from systemd but we retain so little of it
+  ;; that it would make more sense to maintain a fork of the bits we need.
+  (package
+    (name "localed")
+    (version "241")
+    (source (origin
+              (method git-fetch)
+              (uri (git-reference
+                    (url "https://github.com/systemd/systemd";)
+                    (commit (string-append "v" version))))
+              (sha256
+               (base32
+                "0sy91flzbhpq58k7v0294pa2gxpr0bk27rcnxlbhk2fi6nc51d28"))
+              (file-name (git-file-name name version))
+              (modules '((guix build utils)))
+              (snippet
+               '(begin
+                  ;; Connect to the right location for our D-Bus daemon.
+                  (substitute* '("src/basic/def.h"
+                                 "src/libsystemd/sd-bus/sd-bus.c"
+                                 "src/stdio-bridge/stdio-bridge.c")
+                    (("/run/dbus/system_bus_socket")
+                     "/var/run/dbus/system_bus_socket"))
+
+                  ;; Don't insist on having systemd as PID 1 (otherwise
+                  ;; 'localectl' would exit without doing anything.)
+                  (substitute* "src/shared/bus-util.c"
+                    (("sd_booted\\(\\)")
+                     "(1)"))
+                  #t))
+              (patches (search-patches "localed-xorg-keyboard.patch"))))
+    (build-system meson-build-system)
+    (arguments
+     ;; Try to build as little as possible (list of components taken from the
+     ;; top-level 'meson.build' file.)
+     (let ((components '("utmp"
+                         "hibernate"
+                         "environment-d"
+                         "binfmt"
+                         "coredump"
+                         "resolve"
+                         "logind"
+                         "hostnamed"
+                         "localed"
+                         "machined"
+                         "portabled"
+                         "networkd"
+                         "timedated"
+                         "timesyncd"
+                         "firstboot"
+                         "randomseed"
+                         "backlight"
+                         "vconsole"
+                         "quotacheck"
+                         "sysusers"
+                         "tmpfiles"
+                         "hwdb"
+                         "rfkill"
+                         "ldconfig"
+                         "efi"
+                         "tpm"
+                         "ima"
+                         "smack"
+                         "gshadow"
+                         "idn"
+                         "nss-myhostname"
+                         "nss-systemd")))
+       `(#:configure-flags ',(map (lambda (component)
+                                    (string-append "-D" component "=false"))
+                                  (delete "localed" components))
+
+         ;; It doesn't make sense to test all of systemd.
+         #:tests? #f
+
+         #:phases (modify-phases %standard-phases
+                    (add-after 'unpack 'set-xkeyboard-config-file-name
+                      (lambda* (#:key inputs #:allow-other-keys)
+                        ;; Set the file name to xkeyboard-config and kbd.
+                        ;; This is used by 'localectl list-x11-keymap-layouts'
+                        ;; and similar functions.
+                        (let ((xkb (assoc-ref inputs "xkeyboard-config"))
+                              (kbd (assoc-ref inputs "kbd")))
+                          (substitute* "src/locale/localectl.c"
+                            (("/usr/share/X11/xkb/rules")
+                             (string-append xkb "/share/X11/xkb/rules")))
+                          (substitute* "src/basic/def.h"
+                            (("/usr/share/keymaps")
+                             (string-append kbd "/share/keymaps")))
+                          #t)))
+                    (replace 'install
+                      (lambda* (#:key outputs #:allow-other-keys)
+                        ;; Install 'localed', the D-Bus and polkit files, and
+                        ;; 'localectl'.
+                        (let* ((out (assoc-ref outputs "out"))
+                               (libexec (string-append out "/libexec/localed"))
+                               (bin     (string-append out "/bin"))
+                               (lib     (string-append out "/lib"))
+                               (dbus    (string-append out
+                                                       
"/share/dbus-1/system-services"))
+                               (conf    (string-append out
+                                                       
"/etc/dbus-1/system.d/"))
+                               (polkit  (string-append out
+                                                       
"/share/polkit-1/actions"))
+                               (data    (string-append out "/share/systemd")))
+                          (define (source-file regexp)
+                            (car (find-files ".." regexp)))
+
+                          (mkdir-p libexec)
+                          (copy-file "systemd-localed"
+                                     (string-append libexec "/localed"))
+                          (install-file "localectl" bin)
+
+                          (let ((service-file (source-file
+                                               "\\.locale1\\.service$")))
+                            (substitute* service-file
+                              (("^Exec=.*$")
+                               (string-append "Exec=" libexec "/localed\n")))
+                            (install-file service-file dbus))
+                          (install-file (source-file "\\.locale1\\.policy$")
+                                        polkit)
+                          (install-file (source-file "\\.locale1\\.conf$")
+                                        conf)
+                          (for-each (lambda (file)
+                                      (install-file file lib))
+                                    (find-files "src/shared"
+                                                "libsystemd-shared.*\\.so"))
+
+                          (for-each (lambda (map)
+                                      (install-file map data))
+                                    (find-files ".." 
"^(kbd-model-map|language-fallback-map)$"))
+                          #t)))))))
+    (native-inputs (package-native-inputs elogind))
+    (inputs `(("libmount" ,util-linux)
+              ("xkeyboard-config" ,xkeyboard-config)
+              ("kbd" ,kbd)
+              ,@(package-inputs elogind)))
+    (home-page "https://www.freedesktop.org/wiki/Software/systemd/localed/";)
+    (synopsis "Control the system locale and keyboard layout")
+    (description
+     "Localed is a tiny daemon that can be used to control the system locale
+and keyboard mapping from user programs.  It is used among other things by the
+GNOME Shell.  The @command{localectl} command-line tool allows you to interact
+with localed.  This package is extracted from the broader systemd package.")
+    (license license:lgpl2.1+)))
+
 (define-public packagekit
   (package
     (name "packagekit")
diff --git a/gnu/packages/patches/localed-xorg-keyboard.patch 
b/gnu/packages/patches/localed-xorg-keyboard.patch
new file mode 100644
index 0000000..9a9071b
--- /dev/null
+++ b/gnu/packages/patches/localed-xorg-keyboard.patch
@@ -0,0 +1,322 @@
+Normally localed would do an approximate parsing of the Xorg config file
+to determine the XKB keyboard layout.  This doesn't make sense on Guix
+where there's no such file in /etc, and where the keyboard layout is
+known statically at configuration time.
+
+This patch removes the XOrg configuration parsing and expects to read the
+configuration from environment variables instead.  It also removes the
+stateful bits that would write configuration to /etc/vconsole.conf
+and /etc/X11, which are unused in Guix anyway.
+
+Patch by Ludovic Courtès <address@hidden>.
+
+diff --git a/src/locale/keymap-util.c b/src/locale/keymap-util.c
+index 6b6b32a591..46aab472b0 100644
+--- a/src/locale/keymap-util.c
++++ b/src/locale/keymap-util.c
+@@ -174,32 +174,16 @@ int vconsole_read_data(Context *c, sd_bus_message *m) {
+                 c->vc_cache = sd_bus_message_ref(m);
+         }
+ 
+-        if (stat("/etc/vconsole.conf", &st) < 0) {
+-                if (errno != ENOENT)
+-                        return -errno;
+-
+-                c->vc_mtime = USEC_INFINITY;
+-                context_free_vconsole(c);
+-                return 0;
+-        }
+-
+-        /* If mtime is not changed, then we do not need to re-read */
+-        t = timespec_load(&st.st_mtim);
+-        if (c->vc_mtime != USEC_INFINITY && t == c->vc_mtime)
+-                return 0;
+-
+-        c->vc_mtime = t;
++        c->vc_mtime = USEC_INFINITY;
+         context_free_vconsole(c);
+-
+-        r = parse_env_file(NULL, "/etc/vconsole.conf",
+-                           "KEYMAP",        &c->vc_keymap,
+-                           "KEYMAP_TOGGLE", &c->vc_keymap_toggle);
+-        if (r < 0)
+-                return r;
+-
+         return 0;
+ }
+ 
++static char *getenv_strdup(const char *variable) {
++        const char *value = getenv(variable);
++        return value == NULL ? NULL : strdup(value);
++}
++
+ int x11_read_data(Context *c, sd_bus_message *m) {
+         _cleanup_fclose_ FILE *f = NULL;
+         bool in_section = false;
+@@ -216,258 +200,27 @@ int x11_read_data(Context *c, sd_bus_message *m) {
+                 c->x11_cache = sd_bus_message_ref(m);
+         }
+ 
+-        if (stat("/etc/X11/xorg.conf.d/00-keyboard.conf", &st) < 0) {
+-                if (errno != ENOENT)
+-                        return -errno;
+-
+-                c->x11_mtime = USEC_INFINITY;
+-                context_free_x11(c);
+-                return 0;
+-        }
+-
+-        /* If mtime is not changed, then we do not need to re-read */
+-        t = timespec_load(&st.st_mtim);
+-        if (c->x11_mtime != USEC_INFINITY && t == c->x11_mtime)
+-                return 0;
+-
+-        c->x11_mtime = t;
++        c->x11_mtime = 0;
+         context_free_x11(c);
+ 
+-        f = fopen("/etc/X11/xorg.conf.d/00-keyboard.conf", "re");
+-        if (!f)
+-                return -errno;
+-
+-        for (;;) {
+-                _cleanup_free_ char *line = NULL;
+-                char *l;
+-
+-                r = read_line(f, LONG_LINE_MAX, &line);
+-                if (r < 0)
+-                        return r;
+-                if (r == 0)
+-                        break;
+-
+-                l = strstrip(line);
+-                if (IN_SET(l[0], 0, '#'))
+-                        continue;
+-
+-                if (in_section && first_word(l, "Option")) {
+-                        _cleanup_strv_free_ char **a = NULL;
+-
+-                        r = strv_split_extract(&a, l, WHITESPACE, 
EXTRACT_QUOTES);
+-                        if (r < 0)
+-                                return r;
+-
+-                        if (strv_length(a) == 3) {
+-                                char **p = NULL;
+-
+-                                if (streq(a[1], "XkbLayout"))
+-                                        p = &c->x11_layout;
+-                                else if (streq(a[1], "XkbModel"))
+-                                        p = &c->x11_model;
+-                                else if (streq(a[1], "XkbVariant"))
+-                                        p = &c->x11_variant;
+-                                else if (streq(a[1], "XkbOptions"))
+-                                        p = &c->x11_options;
+-
+-                                if (p) {
+-                                        free_and_replace(*p, a[2]);
+-                                }
+-                        }
+-
+-                } else if (!in_section && first_word(l, "Section")) {
+-                        _cleanup_strv_free_ char **a = NULL;
+-
+-                        r = strv_split_extract(&a, l, WHITESPACE, 
EXTRACT_QUOTES);
+-                        if (r < 0)
+-                                return -ENOMEM;
+-
+-                        if (strv_length(a) == 2 && streq(a[1], "InputClass"))
+-                                in_section = true;
+-
+-                } else if (in_section && first_word(l, "EndSection"))
+-                        in_section = false;
+-        }
++        c->x11_layout = getenv_strdup("GUIX_XKB_LAYOUT");
++        c->x11_model = getenv_strdup("GUIX_XKB_MODEL");
++        c->x11_variant = getenv_strdup("GUIX_XKB_VARIANT");
++        c->x11_options = getenv_strdup("GUIX_XKB_OPTIONS");
+ 
+         return 0;
+ }
+ 
+ int locale_write_data(Context *c, char ***settings) {
+-        _cleanup_strv_free_ char **l = NULL;
+-        struct stat st;
+-        int r, p;
+-
+-        /* Set values will be returned as strv in *settings on success. */
+-
+-        for (p = 0; p < _VARIABLE_LC_MAX; p++) {
+-                _cleanup_free_ char *t = NULL;
+-                char **u;
+-                const char *name;
+-
+-                name = locale_variable_to_string(p);
+-                assert(name);
+-
+-                if (isempty(c->locale[p]))
+-                        continue;
+-
+-                if (asprintf(&t, "%s=%s", name, c->locale[p]) < 0)
+-                        return -ENOMEM;
+-
+-                u = strv_env_set(l, t);
+-                if (!u)
+-                        return -ENOMEM;
+-
+-                strv_free_and_replace(l, u);
+-        }
+-
+-        if (strv_isempty(l)) {
+-                if (unlink("/etc/locale.conf") < 0)
+-                        return errno == ENOENT ? 0 : -errno;
+-
+-                c->locale_mtime = USEC_INFINITY;
+-                return 0;
+-        }
+-
+-        r = write_env_file_label("/etc/locale.conf", l);
+-        if (r < 0)
+-                return r;
+-
+-        *settings = TAKE_PTR(l);
+-
+-        if (stat("/etc/locale.conf", &st) >= 0)
+-                c->locale_mtime = timespec_load(&st.st_mtim);
+-
+-        return 0;
++        return -ENOSYS;
+ }
+ 
+ int vconsole_write_data(Context *c) {
+-        _cleanup_strv_free_ char **l = NULL;
+-        struct stat st;
+-        int r;
+-
+-        r = load_env_file(NULL, "/etc/vconsole.conf", &l);
+-        if (r < 0 && r != -ENOENT)
+-                return r;
+-
+-        if (isempty(c->vc_keymap))
+-                l = strv_env_unset(l, "KEYMAP");
+-        else {
+-                _cleanup_free_ char *s = NULL;
+-                char **u;
+-
+-                s = strappend("KEYMAP=", c->vc_keymap);
+-                if (!s)
+-                        return -ENOMEM;
+-
+-                u = strv_env_set(l, s);
+-                if (!u)
+-                        return -ENOMEM;
+-
+-                strv_free_and_replace(l, u);
+-        }
+-
+-        if (isempty(c->vc_keymap_toggle))
+-                l = strv_env_unset(l, "KEYMAP_TOGGLE");
+-        else  {
+-                _cleanup_free_ char *s = NULL;
+-                char **u;
+-
+-                s = strappend("KEYMAP_TOGGLE=", c->vc_keymap_toggle);
+-                if (!s)
+-                        return -ENOMEM;
+-
+-                u = strv_env_set(l, s);
+-                if (!u)
+-                        return -ENOMEM;
+-
+-                strv_free_and_replace(l, u);
+-        }
+-
+-        if (strv_isempty(l)) {
+-                if (unlink("/etc/vconsole.conf") < 0)
+-                        return errno == ENOENT ? 0 : -errno;
+-
+-                c->vc_mtime = USEC_INFINITY;
+-                return 0;
+-        }
+-
+-        r = write_env_file_label("/etc/vconsole.conf", l);
+-        if (r < 0)
+-                return r;
+-
+-        if (stat("/etc/vconsole.conf", &st) >= 0)
+-                c->vc_mtime = timespec_load(&st.st_mtim);
+-
+-        return 0;
++        return -ENOSYS;
+ }
+ 
+ int x11_write_data(Context *c) {
+-        _cleanup_fclose_ FILE *f = NULL;
+-        _cleanup_free_ char *temp_path = NULL;
+-        struct stat st;
+-        int r;
+-
+-        if (isempty(c->x11_layout) &&
+-            isempty(c->x11_model) &&
+-            isempty(c->x11_variant) &&
+-            isempty(c->x11_options)) {
+-
+-                if (unlink("/etc/X11/xorg.conf.d/00-keyboard.conf") < 0)
+-                        return errno == ENOENT ? 0 : -errno;
+-
+-                c->vc_mtime = USEC_INFINITY;
+-                return 0;
+-        }
+-
+-        mkdir_p_label("/etc/X11/xorg.conf.d", 0755);
+-
+-        r = fopen_temporary("/etc/X11/xorg.conf.d/00-keyboard.conf", &f, 
&temp_path);
+-        if (r < 0)
+-                return r;
+-
+-        (void) __fsetlocking(f, FSETLOCKING_BYCALLER);
+-        (void) fchmod(fileno(f), 0644);
+-
+-        fputs("# Written by systemd-localed(8), read by systemd-localed and 
Xorg. It's\n"
+-              "# probably wise not to edit this file manually. Use 
localectl(1) to\n"
+-              "# instruct systemd-localed to update it.\n"
+-              "Section \"InputClass\"\n"
+-              "        Identifier \"system-keyboard\"\n"
+-              "        MatchIsKeyboard \"on\"\n", f);
+-
+-        if (!isempty(c->x11_layout))
+-                fprintf(f, "        Option \"XkbLayout\" \"%s\"\n", 
c->x11_layout);
+-
+-        if (!isempty(c->x11_model))
+-                fprintf(f, "        Option \"XkbModel\" \"%s\"\n", 
c->x11_model);
+-
+-        if (!isempty(c->x11_variant))
+-                fprintf(f, "        Option \"XkbVariant\" \"%s\"\n", 
c->x11_variant);
+-
+-        if (!isempty(c->x11_options))
+-                fprintf(f, "        Option \"XkbOptions\" \"%s\"\n", 
c->x11_options);
+-
+-        fputs("EndSection\n", f);
+-
+-        r = fflush_sync_and_check(f);
+-        if (r < 0)
+-                goto fail;
+-
+-        if (rename(temp_path, "/etc/X11/xorg.conf.d/00-keyboard.conf") < 0) {
+-                r = -errno;
+-                goto fail;
+-        }
+-
+-        if (stat("/etc/X11/xorg.conf.d/00-keyboard.conf", &st) >= 0)
+-                c->x11_mtime = timespec_load(&st.st_mtim);
+-
+-        return 0;
+-
+-fail:
+-        if (temp_path)
+-                (void) unlink(temp_path);
+-
+-        return r;
++        return -ENOSYS;
+ }
+ 
+ static int read_next_mapping(const char* filename,



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