#include "cache-tree.h"
#include "refs.h"
#include "dir.h"
+#include "tree.h"
+#include "commit.h"
+#include "diff.h"
+#include "diffcore.h"
+#include "revision.h"
+#include "blob.h"
/* Index extensions.
*
return new;
}
+static void record_intent_to_add(struct cache_entry *ce)
+{
+ unsigned char sha1[20];
+ if (write_sha1_file("", 0, blob_type, sha1))
+ die("cannot create an empty blob in the object database");
+ hashcpy(ce->sha1, sha1);
+}
+
int add_to_index(struct index_state *istate, const char *path, struct stat *st, int flags)
{
int size, namelen, was_same;
unsigned ce_option = CE_MATCH_IGNORE_VALID|CE_MATCH_RACY_IS_DIRTY;
int verbose = flags & (ADD_CACHE_VERBOSE | ADD_CACHE_PRETEND);
int pretend = flags & ADD_CACHE_PRETEND;
+ int intent_only = flags & ADD_CACHE_INTENT;
+ int add_option = (ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE|
+ (intent_only ? ADD_CACHE_NEW_ONLY : 0));
if (!S_ISREG(st_mode) && !S_ISLNK(st_mode) && !S_ISDIR(st_mode))
return error("%s: can only add regular files, symbolic links or git-directories", path);
ce = xcalloc(1, size);
memcpy(ce->name, path, namelen);
ce->ce_flags = namelen;
- fill_stat_cache_info(ce, st);
+ if (!intent_only)
+ fill_stat_cache_info(ce, st);
if (trust_executable_bit && has_symlinks)
ce->ce_mode = create_ce_mode(st_mode);
alias->ce_flags |= CE_ADDED;
return 0;
}
- if (index_path(ce->sha1, path, st, 1))
- return error("unable to index file %s", path);
+ if (!intent_only) {
+ if (index_path(ce->sha1, path, st, 1))
+ return error("unable to index file %s", path);
+ } else
+ record_intent_to_add(ce);
+
if (ignore_case && alias && different_name(ce, alias))
ce = create_alias_ce(ce, alias);
ce->ce_flags |= CE_ADDED;
if (pretend)
;
- else if (add_index_entry(istate, ce, ADD_CACHE_OK_TO_ADD|ADD_CACHE_OK_TO_REPLACE))
+ else if (add_index_entry(istate, ce, add_option))
return error("unable to add %s to index",path);
if (verbose && !was_same)
printf("add '%s'\n", path);
int ok_to_add = option & ADD_CACHE_OK_TO_ADD;
int ok_to_replace = option & ADD_CACHE_OK_TO_REPLACE;
int skip_df_check = option & ADD_CACHE_SKIP_DFCHECK;
+ int new_only = option & ADD_CACHE_NEW_ONLY;
cache_tree_invalidate_path(istate->cache_tree, ce->name);
pos = index_name_pos(istate, ce->name, ce->ce_flags);
/* existing match? Just replace it. */
if (pos >= 0) {
- replace_index_entry(istate, pos, ce);
+ if (!new_only)
+ replace_index_entry(istate, pos, ce);
return 0;
}
pos = -pos-1;
ce->ce_size = ntohl(ondisk->size);
/* On-disk flags are just 16 bits */
ce->ce_flags = ntohs(ondisk->flags);
+
+ /* For future extension: we do not understand this entry yet */
+ if (ce->ce_flags & CE_EXTENDED)
+ die("Unknown index entry format");
hashcpy(ce->sha1, ondisk->sha1);
len = ce->ce_flags & CE_NAMEMASK;
size_t mmap_size;
errno = EBUSY;
- if (istate->alloc)
+ if (istate->initialized)
return istate->cache_nr;
errno = ENOENT;
* index size
*/
istate->alloc = xmalloc(estimate_cache_size(mmap_size, istate->cache_nr));
+ istate->initialized = 1;
src_offset = sizeof(*hdr);
dst_offset = 0;
cache_tree_free(&(istate->cache_tree));
free(istate->alloc);
istate->alloc = NULL;
+ istate->initialized = 0;
/* no need to throw away allocated active_cache */
return 0;
istate->cache_nr = dst - istate->cache;
return !!last;
}
+
+struct update_callback_data
+{
+ int flags;
+ int add_errors;
+};
+
+static void update_callback(struct diff_queue_struct *q,
+ struct diff_options *opt, void *cbdata)
+{
+ int i;
+ struct update_callback_data *data = cbdata;
+
+ for (i = 0; i < q->nr; i++) {
+ struct diff_filepair *p = q->queue[i];
+ const char *path = p->one->path;
+ switch (p->status) {
+ default:
+ die("unexpected diff status %c", p->status);
+ case DIFF_STATUS_UNMERGED:
+ case DIFF_STATUS_MODIFIED:
+ case DIFF_STATUS_TYPE_CHANGED:
+ if (add_file_to_index(&the_index, path, data->flags)) {
+ if (!(data->flags & ADD_CACHE_IGNORE_ERRORS))
+ die("updating files failed");
+ data->add_errors++;
+ }
+ break;
+ case DIFF_STATUS_DELETED:
+ if (data->flags & ADD_CACHE_IGNORE_REMOVAL)
+ break;
+ if (!(data->flags & ADD_CACHE_PRETEND))
+ remove_file_from_index(&the_index, path);
+ if (data->flags & (ADD_CACHE_PRETEND|ADD_CACHE_VERBOSE))
+ printf("remove '%s'\n", path);
+ break;
+ }
+ }
+}
+
+int add_files_to_cache(const char *prefix, const char **pathspec, int flags)
+{
+ struct update_callback_data data;
+ struct rev_info rev;
+ init_revisions(&rev, prefix);
+ setup_revisions(0, NULL, &rev, NULL);
+ rev.prune_data = pathspec;
+ rev.diffopt.output_format = DIFF_FORMAT_CALLBACK;
+ rev.diffopt.format_callback = update_callback;
+ data.flags = flags;
+ data.add_errors = 0;
+ rev.diffopt.format_callback_data = &data;
+ run_diff_files(&rev, DIFF_RACY_IS_MODIFIED);
+ return !!data.add_errors;
+}
+