svg-flatten: Be a bit smarter locating usvg

This commit is contained in:
jaseg 2021-02-04 22:53:49 +01:00
parent fb9c6ac32c
commit bd2b012740

View file

@ -1,6 +1,8 @@
#include <cstdlib>
#include <cstdio>
#include <sys/types.h>
#include <pwd.h>
#include <filesystem>
#include <iostream>
#include <fstream>
@ -338,30 +340,59 @@ int main(int argc, char **argv) {
}
string dpi_str = to_string(dpi);
const char *command_line[] = {"usvg", "--keep-named-groups", "--dpi", dpi_str.c_str(), barf.c_str(), frob.c_str(), NULL};
struct subprocess_s subprocess;
int rc = subprocess_create(command_line, subprocess_option_inherit_environment, &subprocess);
if (rc) {
cerr << "Error calling usvg!" << endl;
const char *command_line[] = {nullptr, "--keep-named-groups", "--dpi", dpi_str.c_str(), barf.c_str(), frob.c_str(), NULL};
bool found_usvg = false;
int usvg_rc=-1;
for (int i=0; i<2; i++) {
const char *homedir;
if ((homedir = getenv("HOME")) == NULL) {
homedir = getpwuid(getuid())->pw_dir;
}
string homedir_s(homedir);
string loc_in_home = homedir_s + "/.cargo/bin/usvg";
if (i == 0) {
command_line[0] = "usvg";
} else {
command_line[0] = loc_in_home.c_str();
}
struct subprocess_s subprocess;
int rc = subprocess_create(command_line, subprocess_option_inherit_environment, &subprocess);
if (rc) {
cerr << "Error calling usvg!" << endl;
return EXIT_FAILURE;
}
usvg_rc = -1;
rc = subprocess_join(&subprocess, &usvg_rc);
if (rc) {
cerr << "Error calling usvg!" << endl;
return EXIT_FAILURE;
}
rc = subprocess_destroy(&subprocess);
if (rc) {
cerr << "Error calling usvg!" << endl;
return EXIT_FAILURE;
}
if (usvg_rc == 255) {
continue;
}
found_usvg = true;
break;
}
if (!found_usvg) {
cerr << "Error: Cannot find usvg. Is it installed and in $PATH?" << endl;
return EXIT_FAILURE;
}
int usvg_rc = 0;
rc = subprocess_join(&subprocess, &usvg_rc);
if (rc) {
cerr << "Error calling usvg!" << endl;
return EXIT_FAILURE;
}
if (usvg_rc) {
cerr << "usvg returned an error code: " << usvg_rc << endl;
return EXIT_FAILURE;
}
rc = subprocess_destroy(&subprocess);
if (rc) {
cerr << "Error calling usvg!" << endl;
return EXIT_FAILURE;
}
}
VectorizerSelectorizer vec_sel(vectorizer, args["vectorizer_map"] ? args["vectorizer_map"] : "");