Skip to content

HTTPS clone URL

Subversion checkout URL

You can clone with HTTPS or Subversion.

Download ZIP
Fetching contributors…

Cannot retrieve contributors at this time

177 lines (156 sloc) 4.051 kb
#include "cache.h"
#include "dir.h"
#include "resolve-undo.h"
#include "string-list.h"
/* The only error case is to run out of memory in string-list */
void record_resolve_undo(struct index_state *istate, struct cache_entry *ce)
{
struct string_list_item *lost;
struct resolve_undo_info *ui;
struct string_list *resolve_undo;
int stage = ce_stage(ce);
if (!stage)
return;
if (!istate->resolve_undo) {
resolve_undo = xcalloc(1, sizeof(*resolve_undo));
resolve_undo->strdup_strings = 1;
istate->resolve_undo = resolve_undo;
}
resolve_undo = istate->resolve_undo;
lost = string_list_insert(resolve_undo, ce->name);
if (!lost->util)
lost->util = xcalloc(1, sizeof(*ui));
ui = lost->util;
hashcpy(ui->sha1[stage - 1], ce->sha1);
ui->mode[stage - 1] = ce->ce_mode;
}
static int write_one(struct string_list_item *item, void *cbdata)
{
struct strbuf *sb = cbdata;
struct resolve_undo_info *ui = item->util;
int i;
if (!ui)
return 0;
strbuf_addstr(sb, item->string);
strbuf_addch(sb, 0);
for (i = 0; i < 3; i++)
strbuf_addf(sb, "%o%c", ui->mode[i], 0);
for (i = 0; i < 3; i++) {
if (!ui->mode[i])
continue;
strbuf_add(sb, ui->sha1[i], 20);
}
return 0;
}
void resolve_undo_write(struct strbuf *sb, struct string_list *resolve_undo)
{
for_each_string_list(resolve_undo, write_one, sb);
}
struct string_list *resolve_undo_read(const char *data, unsigned long size)
{
struct string_list *resolve_undo;
size_t len;
char *endptr;
int i;
resolve_undo = xcalloc(1, sizeof(*resolve_undo));
resolve_undo->strdup_strings = 1;
while (size) {
struct string_list_item *lost;
struct resolve_undo_info *ui;
len = strlen(data) + 1;
if (size <= len)
goto error;
lost = string_list_insert(resolve_undo, data);
if (!lost->util)
lost->util = xcalloc(1, sizeof(*ui));
ui = lost->util;
size -= len;
data += len;
for (i = 0; i < 3; i++) {
ui->mode[i] = strtoul(data, &endptr, 8);
if (!endptr || endptr == data || *endptr)
goto error;
len = (endptr + 1) - (char*)data;
if (size <= len)
goto error;
size -= len;
data += len;
}
for (i = 0; i < 3; i++) {
if (!ui->mode[i])
continue;
if (size < 20)
goto error;
hashcpy(ui->sha1[i], (const unsigned char *)data);
size -= 20;
data += 20;
}
}
return resolve_undo;
error:
string_list_clear(resolve_undo, 1);
error("Index records invalid resolve-undo information");
return NULL;
}
void resolve_undo_clear_index(struct index_state *istate)
{
struct string_list *resolve_undo = istate->resolve_undo;
if (!resolve_undo)
return;
string_list_clear(resolve_undo, 1);
free(resolve_undo);
istate->resolve_undo = NULL;
istate->cache_changed = 1;
}
int unmerge_index_entry_at(struct index_state *istate, int pos)
{
struct cache_entry *ce;
struct string_list_item *item;
struct resolve_undo_info *ru;
int i, err = 0;
if (!istate->resolve_undo)
return pos;
ce = istate->cache[pos];
if (ce_stage(ce)) {
/* already unmerged */
while ((pos < istate->cache_nr) &&
! strcmp(istate->cache[pos]->name, ce->name))
pos++;
return pos - 1; /* return the last entry processed */
}
item = string_list_lookup(istate->resolve_undo, ce->name);
if (!item)
return pos;
ru = item->util;
if (!ru)
return pos;
remove_index_entry_at(istate, pos);
for (i = 0; i < 3; i++) {
struct cache_entry *nce;
if (!ru->mode[i])
continue;
nce = make_cache_entry(ru->mode[i], ru->sha1[i],
ce->name, i + 1, 0);
if (add_index_entry(istate, nce, ADD_CACHE_OK_TO_ADD)) {
err = 1;
error("cannot unmerge '%s'", ce->name);
}
}
if (err)
return pos;
free(ru);
item->util = NULL;
return unmerge_index_entry_at(istate, pos);
}
void unmerge_index(struct index_state *istate, const char **pathspec)
{
int i;
if (!istate->resolve_undo)
return;
for (i = 0; i < istate->cache_nr; i++) {
struct cache_entry *ce = istate->cache[i];
if (!match_pathspec(pathspec, ce->name, ce_namelen(ce), 0, NULL))
continue;
i = unmerge_index_entry_at(istate, i);
}
}
Jump to Line
Something went wrong with that request. Please try again.