static int find_and_add_filter(
git_vector *filters, git_repository *repo, const char *path,
int (*apply)(struct git_filter *self, git_buf *dest, const git_buf *source))
{
struct crlf_attrs ca;
struct crlf_filter *filter;
size_t pathlen;
int error;
/* Load gitattributes for the path */
if ((error = crlf_load_attributes(&ca, repo, path)) < 0)
return error;
/*
* Use the core Git logic to see if we should perform CRLF for this file
* based on its attributes & the value of `core.autocrlf`
*/
ca.crlf_action = crlf_input_action(&ca);
if (ca.crlf_action == GIT_CRLF_BINARY)
return 0;
if (ca.crlf_action == GIT_CRLF_GUESS) {
int auto_crlf;
if ((error = git_repository__cvar(&auto_crlf, repo, GIT_CVAR_AUTO_CRLF)) < 0)
return error;
if (auto_crlf == GIT_AUTO_CRLF_FALSE)
return 0;
}
/* If we're good, we create a new filter object and push it
* into the filters array */
pathlen = strlen(path);
filter = git__malloc(sizeof(struct crlf_filter) + pathlen + 1);
GITERR_CHECK_ALLOC(filter);
filter->f.apply = apply;
filter->f.do_free = NULL;
memcpy(&filter->attrs, &ca, sizeof(struct crlf_attrs));
filter->repo = repo;
memcpy(filter->path, path, pathlen + 1);
return git_vector_insert(filters, filter);
}
static int crlf_check(
git_filter *self,
void **payload, /* points to NULL ptr on entry, may be set */
const git_filter_source *src,
const char **attr_values)
{
int error;
struct crlf_attrs ca;
GIT_UNUSED(self);
if (!attr_values) {
ca.crlf_action = GIT_CRLF_GUESS;
ca.eol = GIT_EOL_UNSET;
} else {
ca.crlf_action = check_crlf(attr_values[2]); /* text */
if (ca.crlf_action == GIT_CRLF_GUESS)
ca.crlf_action = check_crlf(attr_values[0]); /* clrf */
ca.eol = check_eol(attr_values[1]); /* eol */
}
ca.auto_crlf = GIT_AUTO_CRLF_DEFAULT;
/*
* Use the core Git logic to see if we should perform CRLF for this file
* based on its attributes & the value of `core.autocrlf`
*/
ca.crlf_action = crlf_input_action(&ca);
if (ca.crlf_action == GIT_CRLF_BINARY)
return GIT_PASSTHROUGH;
if (ca.crlf_action == GIT_CRLF_GUESS ||
(ca.crlf_action == GIT_CRLF_AUTO &&
git_filter_source_mode(src) == GIT_FILTER_SMUDGE)) {
error = git_repository__cvar(
&ca.auto_crlf, git_filter_source_repo(src), GIT_CVAR_AUTO_CRLF);
if (error < 0)
return error;
if (ca.auto_crlf == GIT_AUTO_CRLF_FALSE)
return GIT_PASSTHROUGH;
if (ca.auto_crlf == GIT_AUTO_CRLF_INPUT &&
git_filter_source_mode(src) == GIT_FILTER_SMUDGE)
return GIT_PASSTHROUGH;
}
if (git_filter_source_mode(src) == GIT_FILTER_CLEAN) {
error = git_repository__cvar(
&ca.safe_crlf, git_filter_source_repo(src), GIT_CVAR_SAFE_CRLF);
if (error < 0)
return error;
/* downgrade FAIL to WARN if ALLOW_UNSAFE option is used */
if ((git_filter_source_options(src) & GIT_FILTER_OPT_ALLOW_UNSAFE) &&
ca.safe_crlf == GIT_SAFE_CRLF_FAIL)
ca.safe_crlf = GIT_SAFE_CRLF_WARN;
}
*payload = git__malloc(sizeof(ca));
GITERR_CHECK_ALLOC(*payload);
memcpy(*payload, &ca, sizeof(ca));
return 0;
}
