#include "rsync.h"
-extern int dry_run;
extern int verbose;
+extern int link_dest;
extern int make_backups;
+extern int log_format_has_i;
+extern char *basis_dir[];
extern struct file_list *the_file_list;
#ifdef SUPPORT_HARD_LINKS
+#define SKIPPED_LINK (-1)
+#define FINISHED_LINK (-2)
+
#define FPTR(i) (the_file_list->files[i])
#define LINKED(p1,p2) (FPTR(p1)->F_DEV == FPTR(p2)->F_DEV \
&& FPTR(p1)->F_INODE == FPTR(p2)->F_INODE)
* linked, and replace the dev+inode data with the hlindex+next linked list. */
static void link_idev_data(void)
{
- int head, from, to, start;
+ int cur, from, to, start;
alloc_pool_t hlink_pool;
alloc_pool_t idev_pool = the_file_list->hlink_pool;
for (from = to = 0; from < hlink_count; from++) {
start = from;
- head = hlink_list[start];
- while (from < hlink_count-1
- && LINKED(hlink_list[from], hlink_list[from+1])) {
- pool_free(idev_pool, 0, FPTR(hlink_list[from])->link_u.idev);
- FPTR(hlink_list[from])->link_u.links = pool_talloc(hlink_pool,
+ while (1) {
+ cur = hlink_list[from];
+ if (from == hlink_count-1
+ || !LINKED(cur, hlink_list[from+1]))
+ break;
+ pool_free(idev_pool, 0, FPTR(cur)->link_u.idev);
+ FPTR(cur)->link_u.links = pool_talloc(hlink_pool,
struct hlink, 1, "hlink_list");
- FPTR(hlink_list[from])->F_HLINDEX = to;
- FPTR(hlink_list[from])->F_NEXT = hlink_list[from+1];
- from++;
+ FPTR(cur)->F_HLINDEX = to;
+ FPTR(cur)->F_NEXT = hlink_list[++from];
}
+ pool_free(idev_pool, 0, FPTR(cur)->link_u.idev);
if (from > start) {
- pool_free(idev_pool, 0, FPTR(hlink_list[from])->link_u.idev);
- FPTR(hlink_list[from])->link_u.links = pool_talloc(hlink_pool,
+ int head = hlink_list[start];
+ FPTR(cur)->link_u.links = pool_talloc(hlink_pool,
struct hlink, 1, "hlink_list");
FPTR(head)->flags |= FLAG_HLINK_TOL;
- FPTR(hlink_list[from])->F_HLINDEX = to;
- FPTR(hlink_list[from])->F_NEXT = head;
- FPTR(hlink_list[from])->flags |= FLAG_HLINK_EOL;
+ FPTR(cur)->F_HLINDEX = to;
+ FPTR(cur)->F_NEXT = head;
+ FPTR(cur)->flags |= FLAG_HLINK_EOL;
hlink_list[to++] = head;
- } else {
- pool_free(idev_pool, 0, FPTR(head)->link_u.idev);
- FPTR(head)->link_u.idev = NULL;
- }
+ } else
+ FPTR(cur)->link_u.links = NULL;
}
if (!to) {
#ifdef SUPPORT_HARD_LINKS
int i;
- if (the_file_list->count < 2)
- return;
-
if (hlink_list)
free(hlink_list);
#endif
}
-int hard_link_check(struct file_struct *file, int ndx, int skip)
+#ifdef SUPPORT_HARD_LINKS
+static int maybe_hard_link(struct file_struct *file, int ndx,
+ char *fname, int statret, STRUCT_STAT *st,
+ char *toname, STRUCT_STAT *to_st,
+ int itemizing, enum logcode code)
+{
+ if (statret == 0) {
+ if (st->st_dev == to_st->st_dev
+ && st->st_ino == to_st->st_ino) {
+ if (itemizing) {
+ itemize(file, ndx, statret, st,
+ ITEM_LOCAL_CHANGE | ITEM_XNAME_FOLLOWS,
+ 0, "");
+ }
+ return 0;
+ }
+ if (make_backups) {
+ if (!make_backup(fname))
+ return -1;
+ } else if (robust_unlink(fname)) {
+ rsyserr(FERROR, errno, "unlink %s failed",
+ full_fname(fname));
+ return -1;
+ }
+ }
+ return hard_link_one(file, ndx, fname, statret, st, toname,
+ 0, itemizing, code);
+}
+#endif
+
+int hard_link_check(struct file_struct *file, int ndx, char *fname,
+ int statret, STRUCT_STAT *st, int itemizing,
+ enum logcode code, int skip)
{
#ifdef SUPPORT_HARD_LINKS
- if (!hlink_list || !file->link_u.links)
- return 0;
+ int head;
if (skip && !(file->flags & FLAG_HLINK_EOL))
- hlink_list[file->F_HLINDEX] = file->F_NEXT;
- if (hlink_list[file->F_HLINDEX] != ndx) {
- if (verbose > 2) {
+ head = hlink_list[file->F_HLINDEX] = file->F_NEXT;
+ else
+ head = hlink_list[file->F_HLINDEX];
+ if (ndx != head) {
+ struct file_struct *head_file = FPTR(head);
+ if (!log_format_has_i && verbose > 1) {
rprintf(FINFO, "\"%s\" is a hard link\n",
- safe_fname(f_name(file)));
+ f_name(file, NULL));
}
+ if (head_file->F_HLINDEX == FINISHED_LINK) {
+ STRUCT_STAT st2, st3;
+ char *toname = f_name(head_file, NULL);
+ if (link_stat(toname, &st2, 0) < 0) {
+ rsyserr(FERROR, errno, "stat %s failed",
+ full_fname(toname));
+ return -1;
+ }
+ if (statret < 0 && basis_dir[0] != NULL) {
+ char cmpbuf[MAXPATHLEN];
+ int j = 0;
+ do {
+ pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname);
+ if (link_stat(cmpbuf, &st3, 0) < 0)
+ continue;
+ if (link_dest) {
+ if (st2.st_dev != st3.st_dev
+ || st2.st_ino != st3.st_ino)
+ continue;
+ statret = 1;
+ st = &st3;
+ if (verbose < 2 || !log_format_has_i)
+ itemizing = code = 0;
+ break;
+ }
+ if (!unchanged_file(cmpbuf, file, &st3))
+ continue;
+ statret = 1;
+ st = &st3;
+ if (unchanged_attrs(file, &st3))
+ break;
+ } while (basis_dir[++j] != NULL);
+ }
+ maybe_hard_link(file, ndx, fname, statret, st,
+ toname, &st2, itemizing, code);
+ file->F_HLINDEX = FINISHED_LINK;
+ } else
+ file->F_HLINDEX = SKIPPED_LINK;
return 1;
}
#endif
int itemizing, enum logcode code)
{
if (do_link(toname, fname)) {
- if (verbose) {
- rsyserr(FERROR, errno, "link %s => %s failed",
- full_fname(fname), safe_fname(toname));
- }
+ if (terse) {
+ if (!verbose)
+ return -1;
+ code = FINFO;
+ } else
+ code = FERROR;
+ rsyserr(code, errno, "link %s => %s failed",
+ full_fname(fname), toname);
return -1;
}
if (itemizing) {
- itemize(file, ndx, statret, st, ITEM_HARD_LINKED,
+ itemize(file, ndx, statret, st,
+ ITEM_LOCAL_CHANGE | ITEM_XNAME_FOLLOWS, 0,
terse ? "" : toname);
}
- if (code && verbose && !terse) {
- rprintf(code, "%s => %s\n",
- safe_fname(fname), safe_fname(toname));
- }
+ if (code && verbose && !terse)
+ rprintf(code, "%s => %s\n", fname, toname);
return 0;
}
#endif
STRUCT_STAT st1, st2;
int statret, ndx = master;
- if (link_stat(f_name_to(file, hlink1), &st1, 0) < 0)
+ file->F_HLINDEX = FINISHED_LINK;
+ if (link_stat(f_name(file, hlink1), &st1, 0) < 0)
return;
if (!(file->flags & FLAG_HLINK_TOL)) {
while (!(file->flags & FLAG_HLINK_EOL)) {
do {
ndx = file->F_NEXT;
file = FPTR(ndx);
- if (ndx == master)
+ if (file->F_HLINDEX != SKIPPED_LINK)
continue;
- hlink2 = f_name(file);
- if ((statret = link_stat(hlink2, &st2, 0)) == 0) {
- if (st2.st_dev == st1.st_dev
- && st2.st_ino == st1.st_ino) {
- if (itemizing) {
- itemize(file, ndx, statret,
- &st2, ITEM_HARD_LINKED, "");
- }
- continue;
- }
- if (make_backups) {
- if (!make_backup(hlink2))
- continue;
- } else if (robust_unlink(hlink2)) {
- if (verbose > 0) {
- rsyserr(FINFO, errno,
- "unlink %s failed",
- full_fname(hlink2));
- }
- continue;
- }
- }
- hard_link_one(file, ndx, hlink2, statret,
- &st2, hlink1, 0, itemizing, code);
+ hlink2 = f_name(file, NULL);
+ statret = link_stat(hlink2, &st2, 0);
+ maybe_hard_link(file, ndx, hlink2, statret, &st2,
+ hlink1, &st1, itemizing, code);
+ file->F_HLINDEX = FINISHED_LINK;
} while (!(file->flags & FLAG_HLINK_EOL));
#endif
}
Matt McCutchen's Web Site / rsync / rsync.git / blobdiff