X-Git-Url: https://mattmccutchen.net/rsync/rsync.git/blobdiff_plain/cca92086975de6bf3af19a8bbe5965f3716ebd12..1e4f5f6342d983152c4771ed2c3fa4dfa3ab2246:/generator.c diff --git a/generator.c b/generator.c index 226f44e6..50d6d889 100644 --- a/generator.c +++ b/generator.c @@ -1,38 +1,37 @@ -/* -*- c-file-style: "linux" -*- - - rsync -- fast file replication program - - Copyright (C) 1996-2000 by Andrew Tridgell - Copyright (C) Paul Mackerras 1996 - Copyright (C) 2002 by Martin Pool - - This program is free software; you can redistribute it and/or modify - it under the terms of the GNU General Public License as published by - the Free Software Foundation; either version 2 of the License, or - (at your option) any later version. - - This program is distributed in the hope that it will be useful, - but WITHOUT ANY WARRANTY; without even the implied warranty of - MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - GNU General Public License for more details. - - You should have received a copy of the GNU General Public License - along with this program; if not, write to the Free Software - Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ +/* + * Routines that are exclusive to the generator process. + * + * Copyright (C) 1996-2000 Andrew Tridgell + * Copyright (C) 1996 Paul Mackerras + * Copyright (C) 2002 Martin Pool + * Copyright (C) 2003, 2004, 2005, 2006 Wayne Davison + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 51 Franklin Street - Fifth Floor, Boston, MA 02110-1301, USA. + */ #include "rsync.h" extern int verbose; extern int dry_run; extern int do_xfers; -extern int log_format_has_i; -extern int daemon_log_format_has_i; +extern int stdout_format_has_i; +extern int logfile_format_has_i; extern int am_root; extern int am_server; extern int am_daemon; extern int do_progress; -extern int recurse; extern int relative_paths; extern int implied_dirs; extern int keep_dirlinks; @@ -51,7 +50,7 @@ extern int delete_during; extern int delete_after; extern int module_id; extern int ignore_errors; -extern int remove_sent_files; +extern int remove_source_files; extern int delay_updates; extern int update_only; extern int ignore_existing; @@ -79,6 +78,7 @@ extern int copy_dest; extern int link_dest; extern int whole_file; extern int list_only; +extern int new_root_dir; extern int read_batch; extern int safe_symlinks; extern long block_size; /* "long" because popt can't set an int32. */ @@ -94,8 +94,6 @@ extern struct file_list *the_file_list; extern struct filter_list_struct server_filter_list; static int deletion_count = 0; /* used to implement --max-delete */ -static int can_link_symlinks = 1; /* start out optimistic */ -static int can_link_devices = 1; /* For calling delete_file() */ #define DEL_FORCE_RECURSE (1<<1) /* recurse even w/o --force */ @@ -293,8 +291,8 @@ static void do_delete_pass(struct file_list *flist) STRUCT_STAT st; int j; - if (dry_run > 1 /* destination doesn't exist yet */ - || list_only) + /* dry_run is incremented when the destination doesn't exist yet. */ + if (dry_run > 1 || list_only) return; for (j = 0; j < flist->count; j++) { @@ -360,7 +358,7 @@ void itemize(struct file_struct *file, int ndx, int statret, STRUCT_STAT *st, iflags &= 0xffff; if ((iflags & SIGNIFICANT_ITEM_FLAGS || verbose > 1 - || log_format_has_i > 1 || (xname && *xname)) && !read_batch) { + || stdout_format_has_i > 1 || (xname && *xname)) && !read_batch) { if (protocol_version >= 29) { if (ndx >= 0) write_int(sock_f_out, ndx); @@ -369,8 +367,10 @@ void itemize(struct file_struct *file, int ndx, int statret, STRUCT_STAT *st, write_byte(sock_f_out, fnamecmp_type); if (iflags & ITEM_XNAME_FOLLOWS) write_vstring(sock_f_out, xname, strlen(xname)); - } else if (ndx >= 0) - log_item(file, &stats, iflags, xname); + } else if (ndx >= 0) { + enum logcode code = logfile_format_has_i ? FINFO : FCLIENT; + log_item(code, file, &stats, iflags, xname); + } } } @@ -453,7 +453,7 @@ static void sum_sizes_sqroot(struct sum_struct *sum, int64 len) int64 l; int b = BLOCKSUM_BIAS; for (l = len; l >>= 1; b += 2) {} - for (c = blength; c >>= 1 && b; b--) {} + for (c = blength; (c >>= 1) && b; b--) {} /* add a bit, subtract rollsum, round up. */ s2length = (b + 1 - 32 + 7) / 8; /* --optimize in compiler-- */ s2length = MAX(s2length, csum_length); @@ -630,7 +630,7 @@ static int try_dests_reg(struct file_struct *file, char *fname, int ndx, case 2: if (!unchanged_attrs(file, stp)) continue; - if ((always_checksum || ignore_times) + if (always_checksum && preserve_times && cmp_time(stp->st_mtime, file->modtime)) continue; best_match = j; @@ -647,29 +647,31 @@ static int try_dests_reg(struct file_struct *file, char *fname, int ndx, j = best_match; pathjoin(cmpbuf, MAXPATHLEN, basis_dir[j], fname); if (link_stat(cmpbuf, stp, 0) < 0) - match_level = 0; + return -1; } -#ifdef HAVE_LINK if (match_level == 3 && !copy_dest) { +#ifdef SUPPORT_HARD_LINKS if (link_dest) { if (hard_link_one(file, ndx, fname, 0, stp, cmpbuf, 1, itemizing && verbose > 1, code) < 0) goto try_a_copy; - if (preserve_hard_links && file->link_u.links) + if (preserve_hard_links && file->link_u.links) { + if (dry_run) + file->link_u.links->link_dest_used = j + 1; hard_link_cluster(file, ndx, itemizing, code); - } else if (itemizing) + } + } else +#endif + if (itemizing) itemize(file, ndx, 0, stp, 0, 0, NULL); if (verbose > 1 && maybe_ATTRS_REPORT) { - code = daemon_log_format_has_i || dry_run - ? FCLIENT : FINFO; - rprintf(code, "%s is uptodate\n", fname); + rprintf(FCLIENT, "%s is uptodate\n", fname); } return -2; } -#endif if (match_level >= 2) { try_a_copy: /* Copy the file locally. */ @@ -686,8 +688,7 @@ static int try_dests_reg(struct file_struct *file, char *fname, int ndx, if (maybe_ATTRS_REPORT && ((!itemizing && verbose && match_level == 2) || (verbose > 1 && match_level == 3))) { - code = daemon_log_format_has_i || dry_run - ? FCLIENT : FINFO; + code = match_level == 3 ? FCLIENT : FINFO; rprintf(code, "%s%s\n", fname, match_level == 3 ? " is uptodate" : ""); } @@ -702,12 +703,12 @@ static int try_dests_reg(struct file_struct *file, char *fname, int ndx, /* This is only called for non-regular files. We return -2 if we've finished * handling the file, or -1 if no dest-linking occurred. */ static int try_dests_non(struct file_struct *file, char *fname, int ndx, - int itemizing, int *possible_ptr, - int maybe_ATTRS_REPORT, enum logcode code) + int itemizing, int maybe_ATTRS_REPORT, + enum logcode code) { - char fnamebuf[MAXPATHLEN], lnk[MAXPATHLEN]; + char fnamebuf[MAXPATHLEN]; STRUCT_STAT st; - int len, i = 0; + int i = 0; do { pathjoin(fnamebuf, MAXPATHLEN, basis_dir[i], fname); @@ -716,35 +717,53 @@ static int try_dests_non(struct file_struct *file, char *fname, int ndx, continue; if (S_ISLNK(file->mode)) { #ifdef SUPPORT_LINKS + char lnk[MAXPATHLEN]; + int len; if ((len = readlink(fnamebuf, lnk, MAXPATHLEN-1)) <= 0) continue; lnk[len] = '\0'; if (strcmp(lnk, file->u.link) != 0) #endif continue; - } else { + } else if (IS_SPECIAL(file->mode)) { + if (!IS_SPECIAL(st.st_mode) || st.st_rdev != file->u.rdev) + continue; + } else if (IS_DEVICE(file->mode)) { if (!IS_DEVICE(st.st_mode) || st.st_rdev != file->u.rdev) continue; + } else { + rprintf(FERROR, + "internal: try_dests_non() called with invalid mode (%o)\n", + (int)file->mode); + exit_cleanup(RERR_UNSUPPORTED); } - if (link_dest) { +#ifdef SUPPORT_HARD_LINKS + if (link_dest +#ifndef CAN_HARDLINK_SYMLINK + && !S_ISLNK(file->mode) +#endif +#ifndef CAN_HARDLINK_SPECIAL + && !IS_SPECIAL(file->mode) && !IS_DEVICE(file->mode) +#endif + ) { if (do_link(fnamebuf, fname) < 0) { - /* TODO improve this to be based on errno? */ - *possible_ptr = 0; + rsyserr(FERROR, errno, + "failed to hard-link %s with %s", + fnamebuf, fname); break; } if (preserve_hard_links && file->link_u.links) hard_link_cluster(file, ndx, itemizing, code); } - if (itemizing && log_format_has_i && verbose > 1) { +#endif + if (itemizing && stdout_format_has_i && verbose > 1) { int changes = compare_dest ? 0 : ITEM_LOCAL_CHANGE + (link_dest ? ITEM_XNAME_FOLLOWS : 0); char *lp = link_dest ? "" : NULL; itemize(file, ndx, 0, &st, changes, 0, lp); } if (verbose > 1 && maybe_ATTRS_REPORT) { - code = daemon_log_format_has_i || dry_run - ? FCLIENT : FINFO; - rprintf(code, "%s is uptodate\n", fname); + rprintf(FCLIENT, "%s is uptodate\n", fname); } return -2; } while (basis_dir[++i] != NULL); @@ -791,7 +810,8 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx, fuzzy_dirlist = NULL; } if (missing_below >= 0) { - dry_run--; + if (dry_run) + dry_run--; missing_below = -1; } parent_dirname = ""; @@ -821,9 +841,13 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx, } } - if (missing_below >= 0 && file->dir.depth <= missing_below) { - dry_run--; - missing_below = -1; + if (missing_below >= 0) { + if (file->dir.depth <= missing_below) { + if (dry_run) + dry_run--; + missing_below = -1; + } else if (!dry_run) + return; } if (dry_run > 1) { statret = -1; @@ -890,8 +914,14 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx, dry_run++; } if (itemizing && f_out != -1) { - itemize(file, ndx, statret, &st, - statret ? ITEM_LOCAL_CHANGE : 0, 0, NULL); + int sr = statret; + if (new_root_dir) { + if (*fname == '.' && fname[1] == '\0') + sr = -1; + new_root_dir = 0; + } + itemize(file, ndx, sr, &st, + sr ? ITEM_LOCAL_CHANGE : 0, 0, NULL); } if (statret != 0 && do_mkdir(fname,file->mode) < 0 && errno != EEXIST) { if (!relative_paths || errno != ENOENT @@ -900,10 +930,18 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx, rsyserr(FERROR, errno, "recv_generator: mkdir %s failed", full_fname(fname)); + file->flags |= FLAG_MISSING; + if (ndx+1 < the_file_list->count + && the_file_list->files[ndx+1]->dir.depth > file->dir.depth) { + rprintf(FERROR, + "*** Skipping everything below this failed directory ***\n"); + missing_below = file->dir.depth; + } + return; } } if (set_file_attrs(fname, file, statret ? NULL : &st, 0) - && verbose && code && f_out != -1) + && verbose && code != FNONE && f_out != -1) rprintf(code, "%s/\n", fname); if (delete_during && f_out != -1 && !phase && dry_run < 2 && (file->flags & FLAG_DEL_HERE)) @@ -951,6 +989,8 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx, itemizing, code); } + if (remove_source_files == 1) + goto return_with_success; return; } } @@ -960,13 +1000,18 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx, return; if (!S_ISLNK(st.st_mode)) statret = -1; - } else if (basis_dir[0] != NULL && can_link_symlinks) { + } else if (basis_dir[0] != NULL) { if (try_dests_non(file, fname, ndx, itemizing, - &can_link_symlinks, maybe_ATTRS_REPORT, code) == -2) { +#ifndef CAN_HARDLINK_SYMLINK + if (link_dest) { + /* Resort to --copy-dest behavior. */ + } else +#endif if (!copy_dest) return; - itemizing = code = 0; + itemizing = 0; + code = FNONE; } } if (preserve_hard_links && file->link_u.links @@ -982,17 +1027,17 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx, itemize(file, ndx, statret, &st, ITEM_LOCAL_CHANGE, 0, NULL); } - if (code && verbose) { + if (code != FNONE && verbose) { rprintf(code, "%s -> %s\n", fname, file->u.link); } - if (remove_sent_files && !dry_run) { - char numbuf[4]; - SIVAL(numbuf, 0, ndx); - send_msg(MSG_SUCCESS, numbuf, 4); - } if (preserve_hard_links && file->link_u.links) hard_link_cluster(file, ndx, itemizing, code); + /* This does not check remove_source_files == 1 + * because this is one of the items that the old + * --remove-sent-files option would remove. */ + if (remove_source_files) + goto return_with_success; } #endif return; @@ -1000,14 +1045,18 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx, if ((am_root && preserve_devices && IS_DEVICE(file->mode)) || (preserve_specials && IS_SPECIAL(file->mode))) { - if (statret != 0 - && (basis_dir[0] != NULL && can_link_devices)) { + if (statret != 0 && basis_dir[0] != NULL) { if (try_dests_non(file, fname, ndx, itemizing, - &can_link_devices, maybe_ATTRS_REPORT, code) == -2) { +#ifndef CAN_HARDLINK_SPECIAL + if (link_dest) { + /* Resort to --copy-dest behavior. */ + } else +#endif if (!copy_dest) return; - itemizing = code = 0; + itemizing = 0; + code = FNONE; } } if (statret != 0 @@ -1037,12 +1086,14 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx, itemize(file, ndx, statret, &st, ITEM_LOCAL_CHANGE, 0, NULL); } - if (code && verbose) + if (code != FNONE && verbose) rprintf(code, "%s\n", fname); if (preserve_hard_links && file->link_u.links) { hard_link_cluster(file, ndx, itemizing, code); } + if (remove_source_files == 1) + goto return_with_success; } } else { if (itemizing) @@ -1050,6 +1101,8 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx, set_file_attrs(fname, file, &st, maybe_ATTRS_REPORT); if (preserve_hard_links && file->link_u.links) hard_link_cluster(file, ndx, itemizing, code); + if (remove_source_files == 1) + goto return_with_success; } return; } @@ -1104,9 +1157,12 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx, if (statret != 0 && basis_dir[0] != NULL) { int j = try_dests_reg(file, fname, ndx, fnamecmpbuf, &st, itemizing, maybe_ATTRS_REPORT, code); - if (j == -2) + if (j == -2) { + if (remove_source_files == 1) + goto return_with_success; return; - if (j != -1) { + } + if (j >= 0) { fnamecmp = fnamecmpbuf; fnamecmp_type = j; statret = 0; @@ -1171,6 +1227,14 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx, set_file_attrs(fname, file, &st, maybe_ATTRS_REPORT); if (preserve_hard_links && file->link_u.links) hard_link_cluster(file, ndx, itemizing, code); + if (remove_source_files != 1) + return; + return_with_success: + if (!dry_run) { + char numbuf[4]; + SIVAL(numbuf, 0, ndx); + send_msg(MSG_SUCCESS, numbuf, 4); + } return; } @@ -1243,8 +1307,8 @@ static void recv_generator(char *fname, struct file_struct *file, int ndx, rprintf(FINFO, "generating and sending sums for %d\n", ndx); notify_others: - if (remove_sent_files && !delay_updates && !phase) - increment_active_files(ndx, itemizing, code); + if (remove_source_files && !delay_updates && !phase) + increment_active_files(ndx, itemizing, code); write_int(f_out, ndx); if (itemizing) { int iflags = ITEM_TRANSFER; @@ -1299,19 +1363,20 @@ void generate_files(int f_out, struct file_list *flist, char *local_name) int save_ignore_non_existing = ignore_non_existing; int save_do_progress = do_progress; int save_make_backups = make_backups; + int dir_tweaking = !(list_only || local_name || dry_run); if (protocol_version >= 29) { itemizing = 1; - maybe_ATTRS_REPORT = log_format_has_i ? 0 : ATTRS_REPORT; - code = daemon_log_format_has_i ? 0 : FLOG; + maybe_ATTRS_REPORT = stdout_format_has_i ? 0 : ATTRS_REPORT; + code = logfile_format_has_i ? FNONE : FLOG; } else if (am_daemon) { - itemizing = daemon_log_format_has_i && do_xfers; + itemizing = logfile_format_has_i && do_xfers; maybe_ATTRS_REPORT = ATTRS_REPORT; code = itemizing || !do_xfers ? FCLIENT : FINFO; } else if (!am_server) { - itemizing = log_format_has_i; - maybe_ATTRS_REPORT = log_format_has_i ? 0 : ATTRS_REPORT; - code = itemizing ? 0 : FINFO; + itemizing = stdout_format_has_i; + maybe_ATTRS_REPORT = stdout_format_has_i ? 0 : ATTRS_REPORT; + code = itemizing ? FNONE : FINFO; } else { itemizing = 0; maybe_ATTRS_REPORT = ATTRS_REPORT; @@ -1360,7 +1425,7 @@ void generate_files(int f_out, struct file_list *flist, char *local_name) * them. This is then fixed after the transfer is done. */ #ifdef HAVE_CHMOD if (!am_root && S_ISDIR(file->mode) && !(file->mode & S_IWUSR) - && !list_only) { + && dir_tweaking) { mode_t mode = file->mode | S_IWUSR; /* user write */ char *fname = local_name ? local_name : fbuf; if (do_chmod(fname, mode) < 0) { @@ -1440,8 +1505,7 @@ void generate_files(int f_out, struct file_list *flist, char *local_name) if (delete_after && !local_name && flist->count > 0) do_delete_pass(flist); - if ((need_retouch_dir_perms || need_retouch_dir_times) - && !list_only && !local_name && !dry_run) { + if ((need_retouch_dir_perms || need_retouch_dir_times) && dir_tweaking) { int j = 0; /* Now we need to fix any directory permissions that were * modified during the transfer and/or re-set any tweaked @@ -1453,6 +1517,16 @@ void generate_files(int f_out, struct file_list *flist, char *local_name) continue; if (!need_retouch_dir_times && file->mode & S_IWUSR) continue; + if (file->flags & FLAG_MISSING) { + int missing = file->dir.depth; + while (++i < flist->count) { + file = flist->files[i]; + if (file->dir.depth <= missing) + break; + } + i--; + continue; + } recv_generator(f_name(file, NULL), file, i, itemizing, maybe_ATTRS_REPORT, code, -1); if (allowed_lull && !(++j % lull_mod))