int filecache_retrieve(TARGET *t, MD5SUM buildmd5sum)
{
MD5SUM blobmd5sum;
MD5SUM copymd5sum;
time_t time;
/* if the target is available in the cache */
const char *cachedname = filecache_getfilename(t, buildmd5sum, 0);
if (!cachedname)
return 0;
if (!filecache_findlink(cachedname, blobmd5sum))
{
if( DEBUG_MD5HASH)
{
printf("Cannot find %s in cache as %s\n", t->name, cachedname);
filecache_disable(t);
}
return 0;
}
getcachedmd5sum( t, 1 );
if ( file_time( t->boundname, &time ) == 0 )
{
if (memcmp(blobmd5sum, t->contentmd5sum, sizeof(MD5SUM)) == 0)
{
if (!(t->flags & T_FLAG_NOCARE))
#ifdef _MSC_VER
_utime(t->boundname, NULL);
#else
utime(t->boundname, NULL);
#endif
printf("%s is already the proper cached target.\n", t->name);
return 1;
}
}
cachedname = filecache_getfilename(t, blobmd5sum, ".blob");
/* try to get it from the cache */
if (copyfile(t->boundname, cachedname, ©md5sum) && memcmp(copymd5sum, blobmd5sum, sizeof(MD5SUM)) == 0)
{
printf( "Using cached %s\n", t->name );
return 1;
}
else if (!(t->flags & T_FLAG_OPTIONALFILECACHE))
{
printf( "Cannot retrieve %s from cache (will build normally)\n", t->name );
return 0;
}
if( DEBUG_MD5HASH)
{
printf( "Cannot find %s in cache as %s\n", t->name, cachedname );
}
return 0;
}
void filecache_update(TARGET *t)
{
MD5SUM blobmd5sum;
int haveblobmd5sum = 0;
const char *cachedname;
const char *blobname;
int cacheerror;
if (!t->filecache_generate)
return;
/* If the buildmd5sum is empty, then the file doesn't exist. */
cacheerror = ismd5empty(t->buildmd5sum);
if (cacheerror)
return;
haveblobmd5sum = 0;
cachedname = filecache_getfilename(t, t->buildmd5sum, NULL);
if (!cachedname)
return;
/* Search for the appropriate .link file that matches the target. */
haveblobmd5sum = filecache_findlink(cachedname, blobmd5sum);
/* If we weren't able to determine the target md5sum, do it now. */
if (!haveblobmd5sum)
{
#ifdef OPT_BUILTIN_LUA_SUPPORT_EXT
LIST *md5callback;
pushsettings( t->settings );
md5callback = var_get( "MD5CALLBACK" );
popsettings( t->settings );
if ( md5callback )
{
luahelper_md5callback(t->boundname, blobmd5sum, md5callback->string);
}
else
{
#endif
md5file(t->boundname, blobmd5sum);
#ifdef OPT_BUILTIN_LUA_SUPPORT_EXT
}
#endif
memcpy(t->contentmd5sum, blobmd5sum, sizeof(MD5SUM));
if (ismd5empty(t->contentmd5sum))
return;
}
{
/* Is the blob already there? */
time_t blobtime;
blobname = filecache_getfilename(t, blobmd5sum, ".blob");
if (file_time(blobname, &blobtime) == -1)
{
time_t blobpartialtime;
const char *blobpartialname;
if(DEBUG_MD5HASH)
printf("Caching %s as %s\n", t->name, cachedname);
else
printf("Caching %s\n", t->name);
/* Write the new .blob to the cache. */
blobpartialname = filecache_getfilename(t, blobmd5sum, ".blob.partial");
if (file_time(blobpartialname, &blobpartialtime) == -1)
{
if (copyfile(blobpartialname, t->boundname, &blobmd5sum) == 0 ||
rename(blobpartialname, blobname) != 0)
{
printf("** Unable to write %s to cache.\n", t->name, cachedname);
filecache_disable(t);
return;
}
}
}
}
/* Write the new .link file to the cache. */
{
FILE *file;
BUFFER linknamebuff;
buffer_init(&linknamebuff);
buffer_addstring(&linknamebuff, cachedname, strlen(cachedname));
buffer_addchar(&linknamebuff, '-');
buffer_addstring(&linknamebuff, md5tostring(blobmd5sum), 32);
buffer_addstring(&linknamebuff, ".link", 5);
buffer_addchar(&linknamebuff, 0);
file_mkdir(buffer_ptr(&linknamebuff));
file = fopen(buffer_ptr(&linknamebuff), "wb");
if (file)
{
write_md5sum(file, blobmd5sum);
write_string(file, t->name);
fclose(file);
}
buffer_free(&linknamebuff);
}
}
void filecache_update(TARGET *t, MD5SUM buildmd5sum)
{
MD5SUM blobmd5sum;
int haveblobmd5sum = 0;
const char *cachedname;
const char *blobname;
int cacheerror;
if (!t->filecache_generate)
return;
/* If the buildmd5sum is empty, then the file doesn't exist. */
cacheerror = ismd5empty(buildmd5sum);
if (cacheerror)
return;
haveblobmd5sum = 0;
cachedname = filecache_getfilename(t, buildmd5sum, NULL);
if (!cachedname)
return;
/* Search for the appropriate .link file that matches the target. */
haveblobmd5sum = filecache_findlink(cachedname, blobmd5sum);
/* If we weren't able to determine the target md5sum, do it now. */
if (!haveblobmd5sum)
{
getcachedmd5sum( t, 1 );
memcpy(blobmd5sum, t->contentchecksum->contentmd5sum, MD5_SUMSIZE);
if (ismd5empty(t->contentchecksum->contentmd5sum))
return;
}
{
/* Is the blob already there? */
time_t blobtime;
blobname = filecache_getfilename(t, blobmd5sum, ".blob");
if (file_time(blobname, &blobtime) == -1)
{
time_t blobpartialtime;
const char *blobpartialname;
if(DEBUG_MD5HASH)
printf("Caching %s as %s\n", t->name, cachedname);
else
printf("Caching %s\n", t->name);
/* Write the new .blob to the cache. */
blobpartialname = filecache_getfilename(t, blobmd5sum, ".blob.partial");
if (file_time(blobpartialname, &blobpartialtime) == -1)
{
if (copyfile(blobpartialname, t->boundname, &blobmd5sum) == 0 ||
rename(blobpartialname, blobname) != 0)
{
printf("** Unable to write %s to cache.\n", t->name);
filecache_disable(t);
return;
}
}
}
}
/* Write the new .link file to the cache. */
{
FILE *file;
BUFFER linknamebuff;
buffer_init(&linknamebuff);
buffer_addstring(&linknamebuff, cachedname, strlen(cachedname));
buffer_addchar(&linknamebuff, '-');
buffer_addstring(&linknamebuff, md5tostring(blobmd5sum), 32);
buffer_addstring(&linknamebuff, ".link", 5);
buffer_addchar(&linknamebuff, 0);
file_mkdir(buffer_ptr(&linknamebuff));
file = fopen(buffer_ptr(&linknamebuff), "wb");
if (file)
{
write_md5sum(file, blobmd5sum);
write_string(file, t->name);
fclose(file);
}
buffer_free(&linknamebuff);
}
}
