Split out pretty-print.c and move pager.c and main-func.h to shared/

This is high-level functionality, and fits better in shared/ (which is for
our executables), than in basic/ (which is also for libraries).

src/test/meson.build

@@ -305,6 +305,10 @@ tests += [
          [],
          []],
 
+        [['src/test/test-pretty-print.c'],
+         [],
+         []],
+
         [['src/test/test-uid-range.c'],
          [],
          []],

src/test/test-pretty-print.c

@@ -0,0 +1,40 @@
+/* SPDX-License-Identifier: LGPL-2.1+ */
+
+#include <stdio.h>
+
+#include "alloc-util.h"
+#include "macro.h"
+#include "pretty-print.h"
+#include "strv.h"
+#include "tests.h"
+
+static void test_terminal_urlify(void) {
+        _cleanup_free_ char *formatted = NULL;
+
+        assert_se(terminal_urlify("https://www.freedesktop.org/wiki/Software/systemd/", "systemd homepage", &formatted) >= 0);
+        printf("Hey, considere visiting the %s right now! It is very good!\n", formatted);
+
+        formatted = mfree(formatted);
+
+        assert_se(terminal_urlify_path("/etc/fstab", "this link to your /etc/fstab", &formatted) >= 0);
+        printf("Or click on %s to have a look at it!\n", formatted);
+}
+
+static void test_cat_files(void) {
+        assert_se(cat_files("/no/such/file", NULL, 0) == -ENOENT);
+        assert_se(cat_files("/no/such/file", NULL, CAT_FLAGS_MAIN_FILE_OPTIONAL) == 0);
+
+        if (access("/etc/fstab", R_OK) >= 0)
+                assert_se(cat_files("/etc/fstab", STRV_MAKE("/etc/fstab", "/etc/fstab"), 0) == 0);
+}
+
+int main(int argc, char *argv[]) {
+        test_setup_logging(LOG_INFO);
+
+        test_terminal_urlify();
+        test_cat_files();
+
+        print_separator();
+
+        return 0;
+}

src/test/test-strip-tab-ansi.c

@@ -3,6 +3,7 @@
 #include <stdio.h>
 
 #include "alloc-util.h"
+#include "pretty-print.h"
 #include "string-util.h"
 #include "terminal-util.h"
 #include "util.h"

src/test/test-terminal-util.c

@@ -6,7 +6,7 @@
 #include "alloc-util.h"
 #include "fd-util.h"
 #include "fileio.h"
-#include "log.h"
+#include "tests.h"
 #include "macro.h"
 #include "strv.h"
 #include "terminal-util.h"
@@ -55,36 +55,11 @@ static void test_read_one_char(void) {
         unlink(name);
 }
 
-static void test_terminal_urlify(void) {
-        _cleanup_free_ char *formatted = NULL;
-
-        assert_se(terminal_urlify("https://www.freedesktop.org/wiki/Software/systemd/", "systemd homepage", &formatted) >= 0);
-        printf("Hey, considere visiting the %s right now! It is very good!\n", formatted);
-
-        formatted = mfree(formatted);
-
-        assert_se(terminal_urlify_path("/etc/fstab", "this link to your /etc/fstab", &formatted) >= 0);
-        printf("Or click on %s to have a look at it!\n", formatted);
-}
-
-static void test_cat_files(void) {
-        assert_se(cat_files("/no/such/file", NULL, 0) == -ENOENT);
-        assert_se(cat_files("/no/such/file", NULL, CAT_FLAGS_MAIN_FILE_OPTIONAL) == 0);
-
-        if (access("/etc/fstab", R_OK) >= 0)
-                assert_se(cat_files("/etc/fstab", STRV_MAKE("/etc/fstab", "/etc/fstab"), 0) == 0);
-}
-
 int main(int argc, char *argv[]) {
-        log_parse_environment();
-        log_open();
+        test_setup_logging(LOG_INFO);
 
         test_default_term_for_tty();
         test_read_one_char();
-        test_terminal_urlify();
-        test_cat_files();
-
-        print_separator();
 
         return 0;
 }