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Allow retrieval of index entries

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This is still very basic, as we only actually load three fields into
the record.
This commit is contained in:
Carlos Martín Nieto
2013-09-01 15:20:59 +02:00
parent 808a8176bc
commit e39a17fe43
6 changed files with 140 additions and 3 deletions
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3
c_src/geef.c
View File

@@ -179,6 +179,9 @@ static ErlNifFunc geef_funcs[] =
{"index_write_tree", 1, geef_index_write_tree},
{"index_write_tree", 2, geef_index_write_tree},
{"index_add", 2, geef_index_add},
{"index_count", 1, geef_index_count},
{"index_get", 3, geef_index_get},
{"index_nth", 2, geef_index_nth},
{"index_clear", 1, geef_index_clear},
{"index_read_tree", 2, geef_index_read_tree},
{"signature_new", 2, geef_signature_new},

83
c_src/index.c
View File

@@ -138,6 +138,89 @@ geef_index_add(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
return atoms.ok;
}
ERL_NIF_TERM
geef_index_count(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
{
geef_index *index;
if (!enif_get_resource(env, argv[0], geef_index_type, (void **) &index))
return enif_make_badarg(env);
return enif_make_uint(env, git_index_entrycount(index->index));
}
ERL_NIF_TERM entry_to_term(ErlNifEnv *env, const git_index_entry *entry)
{
ErlNifBinary id, path;
ERL_NIF_TERM mode;
size_t len;
if (geef_oid_bin(&id, &entry->oid) < 0)
return geef_oom(env);
len = strlen(entry->path);
if (!enif_alloc_binary(len, &path)) {
enif_release_binary(&id);
return geef_oom(env);
}
memcpy(path.data, entry->path, len);
mode = enif_make_uint(env, entry->mode);
return enif_make_tuple4(env, atoms.ok, enif_make_binary(env, &path), enif_make_binary(env, &id),
mode);
}
ERL_NIF_TERM
geef_index_nth(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
{
size_t nth;
geef_index *index;
const git_index_entry *entry;
if (!enif_get_resource(env, argv[0], geef_index_type, (void **) &index))
return enif_make_badarg(env);
if (!enif_get_ulong(env, argv[1], &nth))
return enif_make_badarg(env);
entry = git_index_get_byindex(index->index, nth);
if (entry == NULL)
return geef_error(env);
return entry_to_term(env, entry);
}
ERL_NIF_TERM
geef_index_get(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
{
unsigned int stage;
ErlNifBinary path;
geef_index *index;
const git_index_entry *entry;
if (!enif_get_resource(env, argv[0], geef_index_type, (void **) &index))
return enif_make_badarg(env);
if (!enif_get_uint(env, argv[2], &stage))
return enif_make_badarg(env);
if (!enif_inspect_iolist_as_binary(env, argv[1], &path))
return enif_make_badarg(env);
if (geef_terminate_binary(&path) < 0) {
enif_release_binary(&path);
return geef_oom(env);
}
entry = git_index_get_bypath(index->index, (char *) path.data, stage);
enif_release_binary(&path);
if (entry == NULL)
return geef_error(env);
return entry_to_term(env, entry);
}
ERL_NIF_TERM
geef_index_clear(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[])
{

4
c_src/index.h
View File

@@ -19,6 +19,8 @@ ERL_NIF_TERM geef_index_write_tree(ErlNifEnv *env, int argc, const ERL_NIF_TERM
ERL_NIF_TERM geef_index_clear(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
ERL_NIF_TERM geef_index_read_tree(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
ERL_NIF_TERM geef_index_add(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
ERL_NIF_TERM geef_index_new(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
ERL_NIF_TERM geef_index_count(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
ERL_NIF_TERM geef_index_nth(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
ERL_NIF_TERM geef_index_get(ErlNifEnv *env, int argc, const ERL_NIF_TERM argv[]);
#endif