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Apply filters on checkout.

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This commit is contained in:
Ben Straub 2012-07-06 10:22:45 -08:00
parent 2b63db4cbb
commit 0e874b12d8
1 changed files with 40 additions and 6 deletions
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46
src/checkout.c
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@ -18,6 +18,7 @@
#include "refs.h"
#include "buffer.h"
#include "repository.h"
#include "filter.h"
GIT_BEGIN_DECL
@ -60,6 +61,29 @@ static int count_walker(const char *path, git_tree_entry *entry, void *payload)
return 0;
}
static int apply_filters(git_buf *out,
git_vector *filters,
const void *data,
size_t len)
{
int retcode = GIT_ERROR;
git_buf_clear(out);
if (!filters->length) {
/* No filters to apply; just copy the result */
git_buf_put(out, data, len);
return 0;
}
git_buf origblob;
git_buf_attach(&origblob, (char*)data, len);
retcode = git_filters_apply(out, &origblob, filters);
git_buf_detach(&origblob);
return retcode;
}
static int blob_contents_to_file(git_repository *repo, git_buf *fnbuf, const git_oid *id, int mode)
{
int retcode = GIT_ERROR;
@ -68,14 +92,24 @@ static int blob_contents_to_file(git_repository *repo, git_buf *fnbuf, const git
if (!git_blob_lookup(&blob, repo, id)) {
const void *contents = git_blob_rawcontent(blob);
size_t len = git_blob_rawsize(blob);
git_vector filters = GIT_VECTOR_INIT;
int filter_count;
/* TODO: line-ending smudging */
int fd = git_futils_creat_withpath(git_buf_cstr(fnbuf),
GIT_DIR_MODE, mode);
if (fd >= 0) {
retcode = (!p_write(fd, contents, len)) ? 0 : GIT_ERROR;
p_close(fd);
filter_count = git_filters_load(&filters, repo,
git_buf_cstr(fnbuf),
GIT_FILTER_TO_WORKTREE);
printf("Got %d filters\n", filter_count);
if (filter_count >= 0) {
git_buf filteredblob = GIT_BUF_INIT;
if (!apply_filters(&filteredblob, &filters, contents, len)) {
int fd = git_futils_creat_withpath(git_buf_cstr(fnbuf),
GIT_DIR_MODE, mode);
if (fd >= 0) {
retcode = (!p_write(fd, contents, len)) ? 0 : GIT_ERROR;
p_close(fd);
}
}
}
git_blob_free(blob);