Isolation of udev code from remaining systemd

This commit is a first attempt to isolate the udev code from the
remaining code base.  It intentionally does not modify any files
but purely delete files which, on a first examination, appear to
not be needed.  This is a sweeping commit which may easily have
missed needed code.  Files can be retrieved by doing a checkout
from the previous commit:

 git checkout 2944f347d0 -- <filename>

1 files changed, 0 insertions, 190 deletions

diff --git a/src/login/sysfs-show.c b/src/login/sysfs-show.c
deleted file mode 100644
index d113ec3e43..0000000000
--- a/src/login/sysfs-show.c
+++ /dev/null
@@ -1,190 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
-/***
-  This file is part of systemd.
-
-  Copyright 2010 Lennart Poettering
-
-  systemd is free software; you can redistribute it and/or modify it
-  under the terms of the GNU Lesser General Public License as published by
-  the Free Software Foundation; either version 2.1 of the License, or
-  (at your option) any later version.
-
-  systemd is distributed in the hope that it will be useful, but
-  WITHOUT ANY WARRANTY; without even the implied warranty of
-  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
-  Lesser General Public License for more details.
-
-  You should have received a copy of the GNU Lesser General Public License
-  along with systemd; If not, see <http://www.gnu.org/licenses/>.
-***/
-
-#include <errno.h>
-#include <string.h>
-#include <libudev.h>
-
-#include "util.h"
-#include "sysfs-show.h"
-#include "path-util.h"
-
-static int show_sysfs_one(
-                struct udev *udev,
-                const char *seat,
-                struct udev_list_entry **item,
-                const char *sub,
-                const char *prefix,
-                unsigned n_columns) {
-
-        assert(udev);
-        assert(seat);
-        assert(item);
-        assert(prefix);
-
-        while (*item) {
-                struct udev_list_entry *next, *lookahead;
-                struct udev_device *d;
-                const char *sn, *name, *sysfs, *subsystem, *sysname;
-                char *l, *k;
-
-                sysfs = udev_list_entry_get_name(*item);
-                if (!path_startswith(sysfs, sub))
-                        return 0;
-
-                d = udev_device_new_from_syspath(udev, sysfs);
-                if (!d) {
-                        *item = udev_list_entry_get_next(*item);
-                        continue;
-                }
-
-                sn = udev_device_get_property_value(d, "ID_SEAT");
-                if (isempty(sn))
-                        sn = "seat0";
-
-                /* fixme, also check for tag 'seat' here */
-                if (!streq(seat, sn) || !udev_device_has_tag(d, "seat")) {
-                        udev_device_unref(d);
-                        *item = udev_list_entry_get_next(*item);
-                        continue;
-                }
-
-                name = udev_device_get_sysattr_value(d, "name");
-                if (!name)
-                        name = udev_device_get_sysattr_value(d, "id");
-                subsystem = udev_device_get_subsystem(d);
-                sysname = udev_device_get_sysname(d);
-
-                /* Look if there's more coming after this */
-                lookahead = next = udev_list_entry_get_next(*item);
-                while (lookahead) {
-                        const char *lookahead_sysfs;
-
-                        lookahead_sysfs = udev_list_entry_get_name(lookahead);
-
-                        if (path_startswith(lookahead_sysfs, sub) &&
-                            !path_startswith(lookahead_sysfs, sysfs)) {
-                                struct udev_device *lookahead_d;
-
-                                lookahead_d = udev_device_new_from_syspath(udev, lookahead_sysfs);
-                                if (lookahead_d) {
-                                        const char *lookahead_sn;
-                                        bool found;
-
-                                        lookahead_sn = udev_device_get_property_value(d, "ID_SEAT");
-                                        if (isempty(lookahead_sn))
-                                                lookahead_sn = "seat0";
-
-                                        found = streq(seat, lookahead_sn) && udev_device_has_tag(lookahead_d, "seat");
-                                        udev_device_unref(lookahead_d);
-
-                                        if (found)
-                                                break;
-                                }
-                        }
-
-                        lookahead = udev_list_entry_get_next(lookahead);
-                }
-
-                k = ellipsize(sysfs, n_columns, 20);
-                printf("%s%s%s\n", prefix, draw_special_char(lookahead ? DRAW_TREE_BRANCH : DRAW_TREE_RIGHT),
-                                   k ? k : sysfs);
-                free(k);
-
-                if (asprintf(&l,
-                             "(%s:%s)%s%s%s",
-                             subsystem, sysname,
-                             name ? " \"" : "", name ? name : "", name ? "\"" : "") < 0) {
-                        udev_device_unref(d);
-                        return -ENOMEM;
-                }
-
-                k = ellipsize(l, n_columns, 70);
-                printf("%s%s%s\n", prefix, lookahead ? draw_special_char(DRAW_TREE_VERT) : "  ",
-                                   k ? k : l);
-                free(k);
-                free(l);
-
-                *item = next;
-                if (*item) {
-                        char *p;
-
-                        p = strappend(prefix, lookahead ? draw_special_char(DRAW_TREE_VERT) : "  ");
-                        show_sysfs_one(udev, seat, item, sysfs, p ? p : prefix, n_columns - 2);
-                        free(p);
-                }
-
-                udev_device_unref(d);
-        }
-
-        return 0;
-}
-
-int show_sysfs(const char *seat, const char *prefix, unsigned n_columns) {
-        struct udev *udev;
-        struct udev_list_entry *first = NULL;
-        struct udev_enumerate *e;
-        int r;
-
-        if (n_columns <= 0)
-                n_columns = columns();
-
-        if (!prefix)
-                prefix = "";
-
-        if (isempty(seat))
-                seat = "seat0";
-
-        udev = udev_new();
-        if (!udev)
-                return -ENOMEM;
-
-        e = udev_enumerate_new(udev);
-        if (!e) {
-                r = -ENOMEM;
-                goto finish;
-        }
-
-        if (!streq(seat, "seat0"))
-                r = udev_enumerate_add_match_tag(e, seat);
-        else
-                r = udev_enumerate_add_match_tag(e, "seat");
-
-        if (r < 0)
-                goto finish;
-
-        r = udev_enumerate_scan_devices(e);
-        if (r < 0)
-                goto finish;
-
-        first = udev_enumerate_get_list_entry(e);
-        if (first)
-                show_sysfs_one(udev, seat, &first, "/", prefix, n_columns);
-
-finish:
-        if (e)
-                udev_enumerate_unref(e);
-
-        if (udev)
-                udev_unref(udev);
-
-        return r;
-}