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builtin-add.c: restructure the code for maintainability

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A private function add_files_to_cache() in builtin-add.c was borrowed by
checkout and commit re-implementors without getting properly refactored to
more library-ish place.  This does the refactoring.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Junio C Hamano
2008-07-21 01:24:17 -07:00
parent b0320eaf6a
commit 041aee31be
3 changed files with 62 additions and 57 deletions
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61
read-cache.c
View File

@ -8,6 +8,11 @@
#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"
/* Index extensions.
*
@ -1444,3 +1449,59 @@ int read_index_unmerged(struct index_state *istate)
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;
}