config.c

Go to the documentation of this file.

 
#include "config.h"
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include "mutt/lib.h"
#include "config/lib.h"
#include "core/lib.h"
#include "compress/lib.h"
#include "store/lib.h"

static int hcache_validator(const struct ConfigDef *cdef, intptr_t value, struct Buffer *err)
{
  if (value == 0)
    return CSR_SUCCESS;
 
  const char *const c_header_cache_backend = cs_subset_string(NeoMutt->sub, "header_cache_backend");
  if (!c_header_cache_backend)
  {
    buf_printf(err, _("Set option %s before setting %s"), "header_cache_backend", cdef->name);
    return CSR_ERR_INVALID;
  }
 
  return CSR_SUCCESS;
}

static int hcache_backend_validator(const struct ConfigDef *cdef,
                                    intptr_t value, struct Buffer *err)
{
  if (value == 0)
    return CSR_SUCCESS;
 
  const char *str = (const char *) value;
 
  if (store_is_valid_backend(str))
    return CSR_SUCCESS;
 
  buf_printf(err, _("Invalid value for %s"), cdef->name);
  buf_addch(err, '\n');
  struct Slist *sl = store_backend_list();
  struct Buffer *list = buf_pool_get();
  struct ListNode *np = NULL;
  bool first = true;
  STAILQ_FOREACH(np, &sl->head, entries)
  {
    if (!first)
      buf_addstr(list, ", ");
    buf_addstr(list, np->data);
    first = false;
  }
  buf_add_printf(err, _("Choose from: %s"), buf_string(list));
  buf_pool_release(&list);
  slist_free(&sl);
  return CSR_ERR_INVALID | CSR_INV_WARNING;
}
 
#if defined(USE_HCACHE_COMPRESSION)
static int compress_method_validator(const struct ConfigDef *cdef,
                                     intptr_t value, struct Buffer *err)
{
#ifdef USE_HCACHE_COMPRESSION
  if (value == 0)
    return CSR_SUCCESS;
 
  const char *str = (const char *) value;
 
  if (compress_get_ops(str))
    return CSR_SUCCESS;
 
  buf_printf(err, _("Invalid value for %s"), cdef->name);
  buf_addch(err, '\n');
  struct Slist *sl = compress_list();
  struct Buffer *list = buf_pool_get();
  struct ListNode *np = NULL;
  bool first = true;
  STAILQ_FOREACH(np, &sl->head, entries)
  {
    if (!first)
      buf_addstr(list, ", ");
    buf_addstr(list, np->data);
    first = false;
  }
  buf_add_printf(err, _("Choose from: %s"), buf_string(list));
  buf_pool_release(&list);
  slist_free(&sl);
  return CSR_ERR_INVALID | CSR_INV_WARNING;
#else
  return CSR_SUCCESS;
#endif
}

static int compress_level_validator(const struct ConfigDef *cdef,
                                    intptr_t value, struct Buffer *err)
{
#ifdef USE_HCACHE_COMPRESSION
  const char *const c_header_cache_compress_method = cs_subset_string(NeoMutt->sub, "header_cache_compress_method");
  if (!c_header_cache_compress_method)
  {
    buf_printf(err, _("Set option %s before setting %s"),
               "header_cache_compress_method", cdef->name);
    return CSR_ERR_INVALID;
  }
 
  const struct ComprOps *cops = compress_get_ops(c_header_cache_compress_method);
  if (!cops)
  {
    buf_printf(err, _("Invalid value for option %s: %s"),
               "header_cache_compress_method", c_header_cache_compress_method);
    return CSR_ERR_INVALID;
  }
 
  if ((value < cops->min_level) || (value > cops->max_level))
  {
    // L10N: This applies to the "$header_cache_compress_level" config variable.
    //       It shows the minimum and maximum values, e.g. 'between 1 and 22'
    buf_printf(err, _("Option %s must be between %d and %d inclusive"),
               cdef->name, cops->min_level, cops->max_level);
    return CSR_ERR_INVALID;
  }
#endif
  return CSR_SUCCESS;
}
#endif

struct ConfigDef HcacheVars[] = {
  // clang-format off
  { "header_cache", DT_PATH, 0, 0, hcache_validator,
    "(hcache) Directory/file for the header cache database"
  },
  { "header_cache_backend", DT_STRING, 0, 0, hcache_backend_validator,
    "(hcache) Header cache backend to use"
  },
  { NULL },
  // clang-format on
};
 
#if defined(USE_HCACHE_COMPRESSION)
struct ConfigDef HcacheVarsComp[] = {
  // clang-format off
  // These two are not in alphabetical order because `level`s validator depends on `method`
  { "header_cache_compress_method", DT_STRING, 0, 0, compress_method_validator,
    "(hcache) Enable generic hcache database compression"
  },
  { "header_cache_compress_level", DT_NUMBER|D_INTEGER_NOT_NEGATIVE, 1, 0, compress_level_validator,
    "(hcache) Level of compression for method"
  },
  { NULL },
  // clang-format on
};
#endif