src/shared/generator.h

   1 /* SPDX-License-Identifier: LGPL-2.1+ */
   2 #pragma once
   3
   4 #include <stdio.h>
   5
   6 #include "main-func.h"
   7
   8 int generator_open_unit_file(
   9         const char *dest,
  10         const char *source,
  11         const char *name,
  12         FILE **file);
  13
  14 int generator_add_symlink(const char *root, const char *dst, const char *dep_type, const char *src);
  15
  16 int generator_write_fsck_deps(
  17         FILE *f,
  18         const char *dir,
  19         const char *what,
  20         const char *where,
  21         const char *type);
  22
  23 int generator_write_timeouts(
  24         const char *dir,
  25         const char *what,
  26         const char *where,
  27         const char *opts,
  28         char **filtered);
  29
  30 int generator_write_device_deps(
  31         const char *dir,
  32         const char *what,
  33         const char *where,
  34         const char *opts);
  35
  36 int generator_write_initrd_root_device_deps(
  37         const char *dir,
  38         const char *what);
  39
  40 int generator_hook_up_mkswap(
  41         const char *dir,
  42         const char *what);
  43 int generator_hook_up_mkfs(
  44         const char *dir,
  45         const char *what,
  46         const char *where,
  47         const char *type);
  48 int generator_hook_up_growfs(
  49         const char *dir,
  50         const char *where,
  51         const char *target);
  52
  53 void log_setup_generator(void);
  54
  55 /* Similar to DEFINE_MAIN_FUNCTION, but initializes logging and assigns positional arguments. */
  56 #define DEFINE_MAIN_GENERATOR_FUNCTION(impl)                            \
  57         _DEFINE_MAIN_FUNCTION(                                          \
  58                 ({                                                      \
  59                         log_setup_generator();                          \
  60                         if (argc > 1 && argc != 4)                      \
  61                                 return log_error_errno(SYNTHETIC_ERRNO(EINVAL), \
  62                                                        "This program takes zero or three arguments."); \
  63                 }),                                                     \
  64                 impl(argc > 1 ? argv[1] : "/tmp",                       \
  65                      argc > 1 ? argv[2] : "/tmp",                       \
  66                      argc > 1 ? argv[3] : "/tmp"),                      \
  67                 r < 0 ? EXIT_FAILURE : EXIT_SUCCESS)