Files
geef/c_src/tree.c
Carlos Martín Nieto b5b68cce8b Allow getting a tree entry
2013-03-02 02:56:58 +01:00

70 lines
1.5 KiB
C

#include <git2.h>
#include <string.h>
#include <stdio.h>
#include "oid.h"
#include "geef.h"
#include "tree.h"
static int geef_string_bin(ErlNifBinary *bin, const char *str)
{
size_t len;
len = strlen(str);
if (!enif_alloc_binary(len, bin))
return -1;
memcpy(bin->data, str, len);
return 0;
}
static ERL_NIF_TERM tree_entry_to_term(ErlNifEnv *env, const git_tree_entry *entry)
{
ErlNifBinary name, oid;
if (geef_oid_bin(&oid, git_tree_entry_id(entry)) < 0)
return atoms.error;
if (geef_string_bin(&name, git_tree_entry_name(entry)) < 0) {
enif_release_binary(&name);
return atoms.error;
}
return enif_make_tuple5(env, atoms.ok, enif_make_int(env, git_tree_entry_filemode(entry)),
geef_object_type2atom(git_tree_entry_type(entry)),
enif_make_binary(env, &oid), enif_make_binary(env, &name));
}
ERL_NIF_TERM
geef_tree_bypath(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
{
char *path;
int error;
geef_object *obj;
ErlNifBinary bin;
git_tree_entry *entry;
if (!enif_get_resource(env, argv[0], geef_object_type, (void **) &obj))
return enif_make_badarg(env);
if (!enif_inspect_iolist_as_binary(env, argv[1], &bin))
return enif_make_badarg(env);
path = malloc(bin.size + 1);
if (!path)
return atoms.error;
memcpy(path, bin.data, bin.size);
path[bin.size] = '\0';
error = git_tree_entry_bypath(&entry, (git_tree *)obj->obj, path);
free(path);
if (error < 0)
return geef_error(env);
return tree_entry_to_term(env, entry);
}