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%% options
copyright owner = Dirk Krause
copyright year = 2017-xxxx
SPDX-License-Identifier: BSD-3-Clause
%% header
/** @file dk4mm.h Make mode: Check if rebuilding destination file
is necessary.
*/
#ifndef DK4CONF_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4conf.h"
#else
#include <dktools-4/dk4conf.h>
#endif
#endif
#ifndef DK4TYPES_H_INCLUDED
#if DK4_BUILDING_DKTOOLS4
#include "dk4types.h"
#else
#include <dktools-4/dk4types.h>
#endif
#endif
#ifdef __cplusplus
extern "C" {
#endif
/** Check whether or not it is necessary to rebuild a destination file.
@param dn Destination file name.
@param sn Source file name.
@return 0 if the destination file is up to date, any non-0 value otherwise.
*/
int
dk4makemode_must_rebuild(const dkChar *dn, const dkChar *sn);
#ifdef __cplusplus
}
#endif
/* vim: set ai sw=4 ts=4 : */
%% module
#include "dk4conf.h"
#include "dk4mm.h"
#include "dk4statd.h"
#if DK4_HAVE_ASSERT_H
#ifndef ASSERT_H_INCLUDED
#include <assert.h>
#define ASSERT_H_INCLUDED 1
#endif
#endif
int
dk4makemode_must_rebuild(const dkChar *dn, const dkChar *sn)
{
dk4_stat_t ds;
dk4_stat_t ss;
int back = 0;
#if DK4_USE_ASSERT
assert(NULL != dn);
assert(NULL != sn);
#endif
if ((NULL == dn) || (NULL == sn)) {
goto finished;
}
if (0 != dk4stat(&ss, sn, NULL)) {
/* Source file exists. */
back = 1;
if (0 != dk4stat(&ds, dn, NULL)) {
/* Destination file exists. */
if (ds.st_mtime > ss.st_mtime) {
/* Destination file exists and is up to date. */
back = 0;
}
}
}
else {
/* Source file does not exist. */
}
finished:
return back;
}
/* vim: set ai sw=4 ts=4 : */
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