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julia_init.c: Use JULIA_DEPOT_PATH and JULIA_LOAD_PATH from the environment #1032

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julia_init.c: Use JULIA_DEPOT_PATH and JULIA_LOAD_PATH from the environment #1032

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fc1f6bb
Use `JULIA_DEPOT_PATH` and `JULIA_LOAD_PATH` from the environment
kpamnany Feb 28, 2025
e29f517
Address review comment
kpamnany Mar 5, 2025
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40 changes: 31 additions & 9 deletions src/julia_init.c
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Original file line number Diff line number Diff line change
Expand Up @@ -42,23 +42,45 @@ const char *get_sysimage_path(const char *libname) {

void set_depot_load_path(const char *root_dir) {
#ifdef _WIN32
char *path_sep = ";";
char *julia_share_subdir = "\\share\\julia";
#else
char *path_sep = ":";
char *julia_share_subdir = "/share/julia";
#endif
char *share_dir =
calloc(sizeof(char), strlen(root_dir) + strlen(julia_share_subdir) + 1);
strcat(share_dir, root_dir);
strcat(share_dir, julia_share_subdir);
int share_path_len = strlen(root_dir) + strlen(julia_share_subdir) + 1;

char *curr_depot_path = getenv("JULIA_DEPOT_PATH");
int curr_depot_path_len = curr_depot_path == NULL ? 0 : strlen(curr_depot_path);
int new_depot_path_len = curr_depot_path_len + 1 + share_path_len;
char *new_depot_path = calloc(sizeof (char), new_depot_path_len);
if (curr_depot_path_len > 0) {
strcat(new_depot_path, curr_depot_path);
strcat(new_depot_path, path_sep);
}
strcat(new_depot_path, root_dir);
strcat(new_depot_path, julia_share_subdir);

char *curr_load_path = getenv("JULIA_LOAD_PATH");
int curr_load_path_len = curr_load_path == NULL ? 0 : strlen(curr_load_path);
int new_load_path_len = curr_load_path_len + 1 + share_path_len;
char *new_load_path = calloc(sizeof (char), new_load_path_len);
if (curr_load_path_len > 0) {
strcat(new_load_path, curr_load_path);
strcat(new_load_path, path_sep);
}
strcat(new_load_path, root_dir);
strcat(new_load_path, julia_share_subdir);

#ifdef _WIN32
_putenv_s("JULIA_DEPOT_PATH", share_dir);
_putenv_s("JULIA_LOAD_PATH", share_dir);
_putenv_s("JULIA_DEPOT_PATH", new_depot_path);
_putenv_s("JULIA_LOAD_PATH", new_load_path);
#else
setenv("JULIA_DEPOT_PATH", share_dir, 1);
setenv("JULIA_LOAD_PATH", share_dir, 1);
setenv("JULIA_DEPOT_PATH", new_depot_path, 1);
setenv("JULIA_LOAD_PATH", new_load_path, 1);
#endif
free(share_dir);
free(new_load_path);
free(new_depot_path);
}

void init_julia(int argc, char **argv) {
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