terminal: drop unfinished code

This drops the libsystemd-terminal and systemd-consoled code for various
reasons:

 * It's been sitting there unfinished for over a year now and won't get
   finished any time soon.

 * Since its initial creation, several parts need significant rework: The
   input handling should be replaced with the now commonly used libinput,
   the drm accessors should coordinate the handling of mode-object
   hotplugging (including split connectors) with other DRM users, and the
   internal library users should be converted to sd-device and friends.

 * There is still significant kernel work required before sd-console is
   really useful. This includes, but is not limited to, simpledrm and
   drmlog.

 * The authority daemon is needed before all this code can be used for
   real. And this will definitely take a lot more time to get done as
   no-one else is currently working on this, but me.

 * kdbus maintenance has taken up way more time than I thought and it has
   much higher priority. I don't see me spending much time on the
   terminal code in the near future.

If anyone intends to hack on this, please feel free to contact me. I'll
gladly help you out with any issues. Once kdbus and authorityd are
finished (whenever that will be..) I'll definitely pick this up again. But
until then, lets reduce compile times and maintenance efforts on this code
and drop it for now.

1 files changed, 0 insertions, 459 deletions

diff --git a/src/libsystemd-terminal/test-term-page.c b/src/libsystemd-terminal/test-term-page.c
deleted file mode 100644
index d59139b62d..0000000000
--- a/src/libsystemd-terminal/test-term-page.c
+++ /dev/null
@@ -1,459 +0,0 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-/***
-  This file is part of systemd.
-
-  Copyright (C) 2014 David Herrmann <dh.herrmann@gmail.com>
-
-  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/>.
-***/
-
-/*
- * Terminal Page/Line/Cell/Char Tests
- * This tests internals of terminal page, line, cell and char handling. It
- * relies on some implementation details, so it might need to be updated if
- * those internals are changed. They should be fairly obvious, though.
- */
-
-#include <stdio.h>
-#include <string.h>
-#include "macro.h"
-#include "term-internal.h"
-
-#define MY_ASSERT_VALS __FILE__, __LINE__, __PRETTY_FUNCTION__
-#define MY_ASSERT_FORW _FILE, _LINE, _FUNC
-#define MY_ASSERT_ARGS const char *_FILE, int _LINE, const char *_FUNC
-#define MY_ASSERT(expr)                                                 \
-        do {                                                            \
-                if (_unlikely_(!(expr)))                                \
-                        log_assert_failed(#expr, _FILE, _LINE, _FUNC);  \
-        } while (false)                                                 \
-
-/*
- * Character Tests
- *
- * These tests rely on some implementation details of term_char_t, including
- * the way we pack characters and the internal layout of "term_char_t". These
- * tests have to be updated once we change the implementation.
- */
-
-#define PACK(v1, v2, v3) \
-                TERM_CHAR_INIT( \
-                        (((((uint64_t)v1) & 0x1fffffULL) << 43) | \
-                         ((((uint64_t)v2) & 0x1fffffULL) << 22) | \
-                         ((((uint64_t)v3) & 0x1fffffULL) <<  1) | \
-                         0x1) \
-                )
-#define PACK1(v1) PACK2((v1), 0x110000)
-#define PACK2(v1, v2) PACK3((v1), (v2), 0x110000)
-#define PACK3(v1, v2, v3) PACK((v1), (v2), (v3))
-
-static void test_term_char_misc(void) {
-        term_char_t c, t;
-
-        /* test TERM_CHAR_NULL handling */
-
-        c = TERM_CHAR_NULL;                     /* c is NULL */
-        assert_se(term_char_same(c, TERM_CHAR_NULL));
-        assert_se(term_char_equal(c, TERM_CHAR_NULL));
-        assert_se(term_char_is_null(c));
-        assert_se(term_char_is_null(TERM_CHAR_NULL));
-        assert_se(!term_char_is_allocated(c));
-
-        /* test single char handling */
-
-        t = term_char_dup_append(c, 'A');       /* t is >A< now */
-        assert_se(!term_char_same(c, t));
-        assert_se(!term_char_equal(c, t));
-        assert_se(!term_char_is_allocated(t));
-        assert_se(!term_char_is_null(t));
-
-        /* test basic combined char handling */
-
-        t = term_char_dup_append(t, '~');
-        t = term_char_dup_append(t, '^');       /* t is >A~^< now */
-        assert_se(!term_char_same(c, t));
-        assert_se(!term_char_is_allocated(t));
-        assert_se(!term_char_is_null(t));
-
-        c = term_char_dup_append(c, 'A');
-        c = term_char_dup_append(c, '~');
-        c = term_char_dup_append(c, '^');       /* c is >A~^< now */
-        assert_se(term_char_same(c, t));
-        assert_se(term_char_equal(c, t));
-
-        /* test more than 2 comb-chars so the chars are allocated */
-
-        t = term_char_dup_append(t, '`');       /* t is >A~^`< now */
-        c = term_char_dup_append(c, '`');       /* c is >A~^`< now */
-        assert_se(!term_char_same(c, t));
-        assert_se(term_char_equal(c, t));
-
-        /* test dup_append() on allocated chars */
-
-        term_char_free(t);
-        t = term_char_dup_append(c, '"');       /* t is >A~^`"< now */
-        assert_se(!term_char_same(c, t));
-        assert_se(!term_char_equal(c, t));
-        c = term_char_merge(c, '"');            /* c is >A~^`"< now */
-        assert_se(!term_char_same(c, t));
-        assert_se(term_char_equal(c, t));
-
-        term_char_free(t);
-        term_char_free(c);
-}
-
-static void test_term_char_packing(void)  {
-        uint32_t seqs[][1024] = {
-                { -1 },
-                { 0, -1 },
-                { 'A', '~', -1 },
-                { 'A', '~', 0, -1 },
-                { 'A', '~', 'a', -1 },
-        };
-        term_char_t res[] = {
-                TERM_CHAR_NULL,
-                PACK1(0),
-                PACK2('A', '~'),
-                PACK3('A', '~', 0),
-                PACK3('A', '~', 'a'),
-        };
-        uint32_t next;
-        unsigned int i, j;
-        term_char_t c = TERM_CHAR_NULL;
-
-        /*
-         * This creates term_char_t objects based on the data in @seqs and
-         * compares the result to @res. Only basic packed types are tested, no
-         * allocations are done.
-         */
-
-        for (i = 0; i < ELEMENTSOF(seqs); ++i) {
-                for (j = 0; j < ELEMENTSOF(seqs[i]); ++j) {
-                        next = seqs[i][j];
-                        if (next == (uint32_t)-1)
-                                break;
-
-                        c = term_char_merge(c, next);
-                }
-
-                assert_se(!memcmp(&c, &res[i], sizeof(c)));
-                c = term_char_free(c);
-        }
-}
-
-static void test_term_char_allocating(void) {
-        uint32_t seqs[][1024] = {
-                { 0, -1 },
-                { 'A', '~', -1 },
-                { 'A', '~', 0, -1 },
-                { 'A', '~', 'a', -1 },
-                { 'A', '~', 'a', 'b', 'c', 'd', -1 },
-                { 'A', '~', 'a', 'b', 'c', 'd', 0, '^', -1 },
-                /* exceeding implementation-defined soft-limit of 64 */
-                { 'd', 'd', 'd', 'd', 'd', 'd', 'd', 'd',
-                  'd', 'd', 'd', 'd', 'd', 'd', 'd', 'd',
-                  'd', 'd', 'd', 'd', 'd', 'd', 'd', 'd',
-                  'd', 'd', 'd', 'd', 'd', 'd', 'd', 'd',
-                  'd', 'd', 'd', 'd', 'd', 'd', 'd', 'd',
-                  'd', 'd', 'd', 'd', 'd', 'd', 'd', 'd',
-                  'd', 'd', 'd', 'd', 'd', 'd', 'd', 'd',
-                  'd', 'd', 'd', 'd', 'd', 'd', 'd', 'd', 'd', -1 },
-        };
-        term_char_t res[] = {
-                PACK1(0),
-                PACK2('A', '~'),
-                PACK3('A', '~', 0),
-                PACK3('A', '~', 'a'),
-                TERM_CHAR_NULL,                 /* allocated */
-                TERM_CHAR_NULL,                 /* allocated */
-                TERM_CHAR_NULL,                 /* allocated */
-        };
-        uint32_t str[][1024] = {
-                { 0, -1 },
-                { 'A', '~', -1 },
-                { 'A', '~', 0, -1 },
-                { 'A', '~', 'a', -1 },
-                { 'A', '~', 'a', 'b', 'c', 'd', -1 },
-                { 'A', '~', 'a', 'b', 'c', 'd', 0, '^', -1 },
-                { 'd', 'd', 'd', 'd', 'd', 'd', 'd', 'd',
-                  'd', 'd', 'd', 'd', 'd', 'd', 'd', 'd',
-                  'd', 'd', 'd', 'd', 'd', 'd', 'd', 'd',
-                  'd', 'd', 'd', 'd', 'd', 'd', 'd', 'd',
-                  'd', 'd', 'd', 'd', 'd', 'd', 'd', 'd',
-                  'd', 'd', 'd', 'd', 'd', 'd', 'd', 'd',
-                  'd', 'd', 'd', 'd', 'd', 'd', 'd', 'd',
-                  'd', 'd', 'd', 'd', 'd', 'd', 'd', 'd', -1 },
-        };
-        size_t n;
-        uint32_t next;
-        unsigned int i, j;
-        const uint32_t *t;
-
-        /*
-         * This builds term_char_t objects based on the data in @seqs. It
-         * compares the result to @res for packed chars, otherwise it requires
-         * them to be allocated.
-         * After that, we resolve the UCS-4 string and compare it to the
-         * expected strings in @str.
-         */
-
-        for (i = 0; i < ELEMENTSOF(seqs); ++i) {
-                _term_char_free_ term_char_t c = TERM_CHAR_NULL;
-
-                for (j = 0; j < ELEMENTSOF(seqs[i]); ++j) {
-                        next = seqs[i][j];
-                        if (next == (uint32_t)-1)
-                                break;
-
-                        c = term_char_merge(c, next);
-                }
-
-                /* we use TERM_CHAR_NULL as marker for allocated chars here */
-                if (term_char_is_null(res[i]))
-                        assert_se(term_char_is_allocated(c));
-                else
-                        assert_se(!memcmp(&c, &res[i], sizeof(c)));
-
-                t = term_char_resolve(c, &n, NULL);
-                for (j = 0; j < ELEMENTSOF(str[i]); ++j) {
-                        next = str[i][j];
-                        if (next == (uint32_t)-1)
-                                break;
-
-                        assert_se(t[j] == next);
-                }
-
-                assert_se(n == j);
-        }
-}
-
-/*
- * Line Tests
- *
- * The following tests work on term_line objects and verify their behavior when
- * we modify them. To verify and set line layouts, we have two simple helpers
- * to avoid harcoding the cell-verification all the time:
- *   line_set(): Set a line to a given layout
- *   line_assert(): Verify that a line has a given layout
- *
- * These functions take the line-layout encoded as a string and verify it
- * against, or set it on, a term_line object. The format used to describe a
- * line looks like this:
- *       example: "|   | A |   |   |   |   |   | 10 *AB* |"
- *
- * The string describes the contents of all cells of a line, separated by
- * pipe-symbols ('|'). Whitespace are ignored, the leading pipe-symbol is
- * optional.
- * The description of each cell can contain an arbitrary amount of characters
- * in the range 'A'-'Z', 'a'-'z'. All those are combined and used as term_char_t
- * on this cell. Any numbers in the description are combined and are used as
- * cell-age.
- * The occurrence of a '*'-symbol marks the cell as bold, '/' marks it as italic.
- * You can use those characters multiple times, but only the first one has an
- * effect.
- * For further symbols, see parse_attr().
- *
- * Therefore, the following descriptions are equivalent:
- *       1) "|   | /A*   |   |   |   |   |   | 10 *AB*  |"
- *       2) "|   | /A**  |   |   |   |   |   | 10 *AB*  |"
- *       3) "|   | A* // |   |   |   |   |   | 10 *AB*  |"
- *       4) "|   | A* // |   |   |   |   |   | 1 *AB* 0 |"
- *       5) "|   | A* // |   |   |   |   |   | A1B0*    |"
- *
- * The parser isn't very strict about placement of alpha/numerical characters,
- * but simply appends all found chars. Don't make use of that feature! It's
- * just a stupid parser to simplify these tests. Make them readable!
- */
-
-static void parse_attr(char c, term_char_t *ch, term_attr *attr, term_age_t *age) {
-        switch (c) {
-        case ' ':
-                /* ignore */
-                break;
-        case '0' ... '9':
-                /* increase age */
-                *age = *age * 10;
-                *age = *age + c - '0';
-                break;
-        case 'A' ... 'Z':
-        case 'a' ... 'z':
-                /* add to character */
-                *ch = term_char_merge(*ch, c);
-                break;
-        case '*':
-                attr->bold = true;
-                break;
-        case '/':
-                attr->italic = true;
-                break;
-        default:
-                assert_se(0);
-                break;
-        }
-}
-
-static void cell_assert(MY_ASSERT_ARGS, term_cell *c, term_char_t ch, const term_attr *attr, term_age_t age) {
-        MY_ASSERT(term_char_equal(c->ch, ch));
-        MY_ASSERT(!memcmp(&c->attr, attr, sizeof(*attr)));
-        MY_ASSERT(c->age == age);
-}
-#define CELL_ASSERT(_cell, _ch, _attr, _age) cell_assert(MY_ASSERT_VALS, (_cell), (_ch), (_attr), (_age))
-
-static void line_assert(MY_ASSERT_ARGS, term_line *l, const char *str, unsigned int fill) {
-        unsigned int cell_i;
-        term_char_t ch = TERM_CHAR_NULL;
-        term_attr attr = { };
-        term_age_t age = TERM_AGE_NULL;
-        char c;
-
-        assert_se(l->fill == fill);
-
-        /* skip leading whitespace */
-        while (*str == ' ')
-                ++str;
-
-        /* skip leading '|' */
-        if (*str == '|')
-                ++str;
-
-        cell_i = 0;
-        while ((c = *str++)) {
-                switch (c) {
-                case '|':
-                        /* end of cell-description; compare it */
-                        assert_se(cell_i < l->n_cells);
-                        cell_assert(MY_ASSERT_FORW,
-                                    &l->cells[cell_i],
-                                    ch,
-                                    &attr,
-                                    age);
-
-                        ++cell_i;
-                        ch = term_char_free(ch);
-                        zero(attr);
-                        age = TERM_AGE_NULL;
-                        break;
-                default:
-                        parse_attr(c, &ch, &attr, &age);
-                        break;
-                }
-        }
-
-        assert_se(cell_i == l->n_cells);
-}
-#define LINE_ASSERT(_line, _str, _fill) line_assert(MY_ASSERT_VALS, (_line), (_str), (_fill))
-
-static void line_set(term_line *l, unsigned int pos, const char *str, bool insert_mode) {
-        term_char_t ch = TERM_CHAR_NULL;
-        term_attr attr = { };
-        term_age_t age = TERM_AGE_NULL;
-        char c;
-
-        while ((c = *str++))
-                parse_attr(c, &ch, &attr, &age);
-
-        term_line_write(l, pos, ch, 1, &attr, age, insert_mode);
-}
-
-static void line_resize(term_line *l, unsigned int width, const term_attr *attr, term_age_t age) {
-        assert_se(term_line_reserve(l, width, attr, age, width) >= 0);
-        term_line_set_width(l, width);
-}
-
-static void test_term_line_misc(void) {
-        term_line *l;
-
-        assert_se(term_line_new(&l) >= 0);
-        assert_se(!term_line_free(l));
-
-        assert_se(term_line_new(NULL) < 0);
-        assert_se(!term_line_free(NULL));
-
-        assert_se(term_line_new(&l) >= 0);
-        assert_se(l->n_cells == 0);
-        assert_se(l->fill == 0);
-        assert_se(term_line_reserve(l, 16, NULL, 0, 0) >= 0);
-        assert_se(l->n_cells == 16);
-        assert_se(l->fill == 0);
-        assert_se(term_line_reserve(l, 512, NULL, 0, 0) >= 0);
-        assert_se(l->n_cells == 512);
-        assert_se(l->fill == 0);
-        assert_se(term_line_reserve(l, 16, NULL, 0, 0) >= 0);
-        assert_se(l->n_cells == 512);
-        assert_se(l->fill == 0);
-        assert_se(!term_line_free(l));
-}
-
-static void test_term_line_ops(void) {
-        term_line *l;
-        term_attr attr_regular = { };
-        term_attr attr_bold = { .bold = true };
-        term_attr attr_italic = { .italic = true };
-
-        assert_se(term_line_new(&l) >= 0);
-        line_resize(l, 8, NULL, 0);
-        assert_se(l->n_cells == 8);
-
-        LINE_ASSERT(l, "| | | | | | | | |", 0);
-
-        term_line_write(l, 4, TERM_CHAR_NULL, 0, NULL, TERM_AGE_NULL, 0);
-        LINE_ASSERT(l, "| | | | | | | | |", 5);
-
-        term_line_write(l, 1, PACK1('A'), 1, NULL, TERM_AGE_NULL, 0);
-        LINE_ASSERT(l, "| |A| | | | | | |", 5);
-
-        term_line_write(l, 8, PACK2('A', 'B'), 1, NULL, TERM_AGE_NULL, 0);
-        LINE_ASSERT(l, "| |A| | | | | | |", 5);
-
-        term_line_write(l, 7, PACK2('A', 'B'), 1, &attr_regular, 10, 0);
-        LINE_ASSERT(l, "| |A| | | | | | 10 AB |", 8);
-
-        term_line_write(l, 7, PACK2('A', 'B'), 1, &attr_bold, 10, 0);
-        LINE_ASSERT(l, "| |A| | | | | | 10 *AB* |", 8);
-
-        term_line_reset(l, NULL, TERM_AGE_NULL);
-
-        LINE_ASSERT(l, "|   |   |          |          |          |   |   |   |", 0);
-        line_set(l, 2, "*wxyz* 8", 0);
-        line_set(l, 3, "/wxyz/ 8", 0);
-        LINE_ASSERT(l, "|   |   | *wxyz* 8 | /wxyz/ 8 |          |   |   |   |", 4);
-        line_set(l, 2, "*abc* 9", true);
-        LINE_ASSERT(l, "|   |   | *abc* 9  | *wxyz* 9 | /wxyz/ 9 | 9 | 9 | 9 |", 5);
-        line_set(l, 7, "*abc* 10", true);
-        LINE_ASSERT(l, "|   |   | *abc* 9  | *wxyz* 9 | /wxyz/ 9 | 9 | 9 | *abc* 10 |", 8);
-
-        term_line_erase(l, 6, 1, NULL, 11, 0);
-        LINE_ASSERT(l, "|   |   | *abc* 9  | *wxyz* 9 | /wxyz/ 9 | 9 | 11 | *abc* 10 |", 8);
-        term_line_erase(l, 6, 2, &attr_italic, 12, 0);
-        LINE_ASSERT(l, "|   |   | *abc* 9  | *wxyz* 9 | /wxyz/ 9 | 9 | 12 // | 12 // |", 6);
-        term_line_erase(l, 7, 2, &attr_regular, 13, 0);
-        LINE_ASSERT(l, "|   |   | *abc* 9  | *wxyz* 9 | /wxyz/ 9 | 9 | 12 // | 13 |", 6);
-        term_line_delete(l, 1, 3, &attr_bold, 14);
-        LINE_ASSERT(l, "|   | /wxyz/ 14 | 14 | 14 // | 14 | 14 ** | 14 ** | 14 ** |", 3);
-        term_line_insert(l, 2, 2, &attr_regular, 15);
-        LINE_ASSERT(l, "|   | /wxyz/ 14 | 15 | 15 | 15 | 15 // | 15 | 15 ** |", 5);
-
-        assert_se(!term_line_free(l));
-}
-
-int main(int argc, char *argv[]) {
-        test_term_char_misc();
-        test_term_char_packing();
-        test_term_char_allocating();
-
-        test_term_line_misc();
-        test_term_line_ops();
-
-        return 0;
-}