Function makeUniqueMirroredDestDirs

freebsd/contrib/zstd/programs/util.c:883–920

}

static void
makeUniqueMirroredDestDirs(char** srcDirNames, unsigned nbFile, const char* outDirName)
{
    unsigned int i = 0, uniqueDirNr = 0;
    char** uniqueDirNames = NULL;

    if (nbFile == 0)
        return;

    uniqueDirNames = (char** ) malloc(nbFile * sizeof (char *));
    CONTROL(uniqueDirNames != NULL);

    /* if dirs is "a/b/c" and "a/b/c/d", we only need call:
     * we just need "a/b/c/d" */
    qsort((void *)srcDirNames, nbFile, sizeof(char*), compareDir);

    uniqueDirNr = 1;
    uniqueDirNames[uniqueDirNr - 1] = srcDirNames[0];
    for (i = 1; i < nbFile; i++) {
        char* prevDirName = srcDirNames[i - 1];
        char* currDirName = srcDirNames[i];

        /* note: we alwasy compare trimmed path, i.e.:
         * src dir of "./foo" and "/foo" will be both saved into:
         * "outDirName/foo/" */
        if (!firstIsParentOrSameDirOfSecond(trimPath(prevDirName),
                                            trimPath(currDirName)))
            uniqueDirNr++;

        /* we need maintain original src dir name instead of trimmed
         * dir, so we can retrive the original src dir's mode_t */
        uniqueDirNames[uniqueDirNr - 1] = currDirName;
    }

    makeMirroredDestDirsWithSameSrcDirMode(uniqueDirNames, uniqueDirNr, outDirName);

    free(uniqueDirNames);
}

static void
makeMirroredDestDirs(char** srcFileNames, unsigned nbFile, const char* outDirName)