Revision 82309874059e32fffcfd1c36093fd2f296a378fc authored by Eric Fischer on 22 November 2017, 19:51:18 UTC, committed by Eric Fischer on 22 November 2017, 19:54:25 UTC
1 parent 9964784
dirtiles.cpp
#include <iostream>
#include <fstream>
#include <sstream>
#include <string>
#include <stdio.h>
#include <string.h>
#include <unistd.h>
#include <dirent.h>
#include <sys/stat.h>
#include "dirtiles.hpp"
std::string dir_read_tile(std::string pbfPath) {
std::ifstream pbfFile(pbfPath, std::ios::in | std::ios::binary);
std::ostringstream contents;
contents << pbfFile.rdbuf();
pbfFile.close();
return (contents.str());
}
void dir_write_tile(const char *outdir, int z, int tx, int ty, std::string const &pbf) {
mkdir(outdir, S_IRWXU | S_IRWXG | S_IRWXO);
std::string curdir(outdir);
std::string slash("/");
std::string newdir = curdir + slash + std::to_string(z);
mkdir(newdir.c_str(), S_IRWXU | S_IRWXG | S_IRWXO);
newdir = newdir + "/" + std::to_string(tx);
mkdir(newdir.c_str(), S_IRWXU | S_IRWXG | S_IRWXO);
newdir = newdir + "/" + std::to_string(ty) + ".pbf";
struct stat st;
if (stat(newdir.c_str(), &st) == 0) {
fprintf(stderr, "Can't write tile to already existing %s\n", newdir.c_str());
exit(EXIT_FAILURE);
}
std::ofstream pbfFile(newdir, std::ios::out | std::ios::binary);
pbfFile.write(pbf.data(), pbf.size());
pbfFile.close();
}
bool numeric(const char *s) {
if (*s == '\0') {
return false;
}
for (; *s != 0; s++) {
if (*s < '0' || *s > '9') {
return false;
}
}
return true;
}
bool pbfname(const char *s) {
while (*s >= '0' && *s <= '9') {
s++;
}
return strcmp(s, ".pbf") == 0;
}
void check_dir(const char *dir, bool rm) {
struct stat st;
std::string meta = std::string(dir) + "/" + "metadata.json";
if (rm) {
unlink(meta.c_str()); // error OK since it may not exist;
} else {
if (stat(meta.c_str(), &st) == 0) {
fprintf(stderr, "%s: file exists\n", meta.c_str());
exit(EXIT_FAILURE);
}
}
DIR *d1 = opendir(dir);
if (d1 != NULL) {
struct dirent *dp;
while ((dp = readdir(d1)) != NULL) {
if (numeric(dp->d_name)) {
std::string z = std::string(dir) + "/" + dp->d_name;
DIR *d2 = opendir(z.c_str());
if (d2 == NULL) {
perror(z.c_str());
exit(EXIT_FAILURE);
}
struct dirent *dp2;
while ((dp2 = readdir(d2)) != NULL) {
if (numeric(dp2->d_name)) {
std::string x = z + "/" + dp2->d_name;
DIR *d3 = opendir(x.c_str());
if (d3 == NULL) {
perror(x.c_str());
exit(EXIT_FAILURE);
}
struct dirent *dp3;
while ((dp3 = readdir(d3)) != NULL) {
if (pbfname(dp3->d_name)) {
std::string y = x + "/" + dp3->d_name;
if (rm) {
if (unlink(y.c_str()) != 0) {
perror(y.c_str());
exit(EXIT_FAILURE);
}
} else {
fprintf(stderr, "%s: file exists\n", y.c_str());
exit(EXIT_FAILURE);
}
}
}
closedir(d3);
}
}
closedir(d2);
}
}
closedir(d1);
}
}
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