static int crlf_apply_to_odb(
git_filter *self, git_buf *dest, const git_buf *source)
{
struct crlf_filter *filter = (struct crlf_filter *)self;
assert(self && dest && source);
/* Empty file? Nothing to do */
if (git_buf_len(source) == 0)
return 0;
/* Heuristics to see if we can skip the conversion.
* Straight from Core Git.
*/
if (filter->attrs.crlf_action == GIT_CRLF_AUTO ||
filter->attrs.crlf_action == GIT_CRLF_GUESS) {
git_buf_text_stats stats;
/* Check heuristics for binary vs text... */
if (git_buf_text_gather_stats(&stats, source, false))
return -1;
/*
* We're currently not going to even try to convert stuff
* that has bare CR characters. Does anybody do that crazy
* stuff?
*/
if (stats.cr != stats.crlf)
return -1;
if (filter->attrs.crlf_action == GIT_CRLF_GUESS) {
/*
* If the file in the index has any CR in it, do not convert.
* This is the new safer autocrlf handling.
*/
if (has_cr_in_index(self))
return -1;
}
if (!stats.cr)
return -1;
}
/* Actually drop the carriage returns */
return git_buf_text_crlf_to_lf(dest, source);
}
static int crlf_apply_to_workdir(
struct crlf_attrs *ca, git_buf *to, const git_buf *from)
{
git_buf_text_stats stats;
const char *workdir_ending = NULL;
bool is_binary;
/* Empty file? Nothing to do. */
if (git_buf_len(from) == 0)
return 0;
/* Determine proper line ending */
workdir_ending = line_ending(ca);
if (!workdir_ending)
return -1;
/* only LF->CRLF conversion is supported, do nothing on LF platforms */
if (strcmp(workdir_ending, "\r\n") != 0)
return GIT_PASSTHROUGH;
/* If there are no LFs, or all LFs are part of a CRLF, nothing to do */
is_binary = git_buf_text_gather_stats(&stats, from, false);
if (stats.lf == 0 || stats.lf == stats.crlf)
return GIT_PASSTHROUGH;
if (ca->crlf_action == GIT_CRLF_AUTO ||
ca->crlf_action == GIT_CRLF_GUESS) {
/* If we have any existing CR or CRLF line endings, do nothing */
if (ca->crlf_action == GIT_CRLF_GUESS &&
stats.cr > 0 && stats.crlf > 0)
return GIT_PASSTHROUGH;
/* If we have bare CR characters, do nothing */
if (stats.cr != stats.crlf)
return GIT_PASSTHROUGH;
/* Don't filter binary files */
if (is_binary)
return GIT_PASSTHROUGH;
}
return git_buf_text_lf_to_crlf(to, from);
}
void test_object_blob_filter__stats(void)
{
int i;
git_blob *blob;
git_buf buf = GIT_BUF_INIT;
git_buf_text_stats stats;
for (i = 0; i < CRLF_NUM_TEST_OBJECTS; i++) {
cl_git_pass(git_blob_lookup(&blob, g_repo, &g_crlf_oids[i]));
cl_git_pass(git_blob__getbuf(&buf, blob));
git_buf_text_gather_stats(&stats, &buf, false);
cl_assert_equal_i(
0, memcmp(&g_crlf_filtered_stats[i], &stats, sizeof(stats)));
git_blob_free(blob);
}
git_buf_free(&buf);
}
static int crlf_apply_to_odb(
struct crlf_attrs *ca,
git_buf *to,
const git_buf *from,
const git_filter_source *src)
{
/* Empty file? Nothing to do */
if (!git_buf_len(from))
return 0;
/* Heuristics to see if we can skip the conversion.
* Straight from Core Git.
*/
if (ca->crlf_action == GIT_CRLF_AUTO || ca->crlf_action == GIT_CRLF_GUESS) {
git_buf_text_stats stats;
/* Check heuristics for binary vs text - returns true if binary */
if (git_buf_text_gather_stats(&stats, from, false))
return GIT_PASSTHROUGH;
/* If there are no CR characters to filter out, then just pass */
if (!stats.cr)
return GIT_PASSTHROUGH;
/* If safecrlf is enabled, sanity-check the result. */
if (stats.cr != stats.crlf || stats.lf != stats.crlf) {
switch (ca->safe_crlf) {
case GIT_SAFE_CRLF_FAIL:
giterr_set(
GITERR_FILTER, "LF would be replaced by CRLF in '%s'",
git_filter_source_path(src));
return -1;
case GIT_SAFE_CRLF_WARN:
/* TODO: issue warning when warning API is available */;
break;
default:
break;
}
}
/*
* We're currently not going to even try to convert stuff
* that has bare CR characters. Does anybody do that crazy
* stuff?
*/
if (stats.cr != stats.crlf)
return GIT_PASSTHROUGH;
if (ca->crlf_action == GIT_CRLF_GUESS) {
/*
* If the file in the index has any CR in it, do not convert.
* This is the new safer autocrlf handling.
*/
if (has_cr_in_index(src))
return GIT_PASSTHROUGH;
}
if (!stats.cr)
return GIT_PASSTHROUGH;
}
/* Actually drop the carriage returns */
return git_buf_text_crlf_to_lf(to, from);
}
