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Changes In Branch bad-winsymlink Excluding Merge-Ins
This is equivalent to a diff from de8035cca6 to 1f45ade696
2014-09-23
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00:15 | Cherrypicked a number of commits from a "bad branch" (I somehow fouled up a merge from trunk). check-in: 2d75e87b76 user: sdr tags: winsymlink | |
2014-09-21
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06:13 | Fixed a bug where windows would strip exe or lnk status from files checked in with posix semantics. Note: There is still a known potential issue if a repo is opened on a file system that does not support reparse points (such as FAT derived file systems) or similar such scenarios. Closed-Leaf check-in: 1f45ade696 user: sdr tags: bad-winsymlink | |
03:05 | Merging latest updates from trunk. check-in: 0ee7e92222 user: sdr tags: bad-winsymlink | |
2014-09-20
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15:28 | Merged updates from trunk. check-in: e2c5960617 user: sdr tags: bad-winsymlink | |
2014-09-15
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01:49 | Work in progress for windows symlink support. check-in: de8035cca6 user: sdr tags: winsymlink | |
2014-09-13
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16:04 | Make "fossil ui" on Windows aware of current checkout. Allows using special names prev/next/current in ui check-in: f62bedf1ef user: drh tags: trunk | |
Changes to src/checkin.c.
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471 472 473 474 475 476 477 | int showHdr = find_option("header",0,0)!=0; int cwdRelative = 0; Glob *pIgnore; Blob rewrittenPathname; const char *zPathname, *zDisplayName; if( find_option("temp",0,0)!=0 ) scanFlags |= SCAN_TEMP; | < | 471 472 473 474 475 476 477 478 479 480 481 482 483 484 | int showHdr = find_option("header",0,0)!=0; int cwdRelative = 0; Glob *pIgnore; Blob rewrittenPathname; const char *zPathname, *zDisplayName; if( find_option("temp",0,0)!=0 ) scanFlags |= SCAN_TEMP; db_must_be_within_tree(); cwdRelative = determine_cwd_relative_option(); /* We should be done with options.. */ verify_all_options(); if( zIgnoreFlag==0 ){ |
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594 595 596 597 598 599 600 | if( find_option("dotfiles",0,0)!=0 ) scanFlags |= SCAN_ALL; if( find_option("temp",0,0)!=0 ) scanFlags |= SCAN_TEMP; if( find_option("allckouts",0,0)!=0 ) scanFlags |= SCAN_NESTED; zIgnoreFlag = find_option("ignore",0,1); verboseFlag = find_option("verbose","v",0)!=0; zKeepFlag = find_option("keep",0,1); zCleanFlag = find_option("clean",0,1); | < | 593 594 595 596 597 598 599 600 601 602 603 604 605 606 | if( find_option("dotfiles",0,0)!=0 ) scanFlags |= SCAN_ALL; if( find_option("temp",0,0)!=0 ) scanFlags |= SCAN_TEMP; if( find_option("allckouts",0,0)!=0 ) scanFlags |= SCAN_NESTED; zIgnoreFlag = find_option("ignore",0,1); verboseFlag = find_option("verbose","v",0)!=0; zKeepFlag = find_option("keep",0,1); zCleanFlag = find_option("clean",0,1); db_must_be_within_tree(); if( zIgnoreFlag==0 ){ zIgnoreFlag = db_get("ignore-glob", 0); } if( zKeepFlag==0 ){ zKeepFlag = db_get("keep-glob", 0); } |
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1112 1113 1114 1115 1116 1117 1118 1119 | ** directly from the filesystem. However, only do this if the file ** itself is actually selected to be part of this check-in. */ if( isSelected ){ int mPerm; mPerm = file_wd_perm(blob_str(&filename)); isExe = ( mPerm==PERM_EXE ); | > > > > > | | 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 | ** directly from the filesystem. However, only do this if the file ** itself is actually selected to be part of this check-in. */ if( isSelected ){ int mPerm; mPerm = file_wd_perm(blob_str(&filename)); #if !defined(_WIN32) isExe = ( mPerm==PERM_EXE ); #endif #if defined(_WIN32) if (win32_symlinks_supported()) #endif isLink = ( mPerm==PERM_LNK ); } if( isExe ){ zPerm = " x"; }else if( isLink ){ zPerm = " l"; /* note: symlinks don't have executable bit on unix */ }else{ |
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Changes to src/file.c.
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205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 | zName = zBuf; memcpy(zName, zLinkFile, nName+1); } nName = file_simplify_name(zName, nName, 0); for(i=1; i<nName; i++){ if( zName[i]=='/' ){ zName[i] = 0; if( file_mkdir(zName, 1) ){ fossil_fatal_recursive("unable to create directory %s", zName); return; } zName[i] = '/'; } } #if !defined(_WIN32) if( symlink(zTargetFile, zName)!=0 ) #else if( win32_symlink(zTargetFile, zName)!=0 ) #endif { fossil_fatal_recursive("unable to create symlink \"%s\"", zName); } if( zName!=zBuf ) free(zName); }else{ Blob content; blob_set(&content, zTargetFile); blob_write_to_file(&content, zLinkFile); blob_reset(&content); } } /* ** Copy symbolic link from zFrom to zTo. */ void symlink_copy(const char *zFrom, const char *zTo){ Blob content; blob_read_link(&content, zFrom); | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 | zName = zBuf; memcpy(zName, zLinkFile, nName+1); } nName = file_simplify_name(zName, nName, 0); for(i=1; i<nName; i++){ if( zName[i]=='/' ){ zName[i] = 0; #if defined(_WIN32) || defined(__CYGWIN__) /* ** On Windows, local path looks like: C:/develop/project/file.txt ** The if stops us from trying to create a directory of a drive letter ** C: in this example. */ if (!(i == 2 && zName[1] == ':')){ #endif if( file_mkdir(zName, 1) ){ fossil_fatal_recursive("unable to create directory %s", zName); return; } #if defined(_WIN32) || defined(__CYGWIN__) } #endif zName[i] = '/'; } } #if !defined(_WIN32) if( symlink(zTargetFile, zName)!=0 ) #else if( win32_symlink(zTargetFile, zName)!=0 ) #endif { fossil_fatal_recursive("unable to create symlink \"%s\"", zName); } if( zName!=zBuf ) free(zName); }else{ Blob content; blob_set(&content, zTargetFile); blob_write_to_file(&content, zLinkFile); blob_reset(&content); } } /* ** This code is used in multiple places around fossil. Rather than having ** four or five slightly different cut & paste chunks of code, this function ** does the task of deleting a (possible) link (if necessary) and then ** either creating a link or a file based on input parameters. ** mayNeedDelete is true if we might need to call link_delete, false otherwise. ** needLink is true if we need to create a symlink, false otherwise. ** mayBeLink is true if zName might be a symlink based on the state of the ** checkout and/or file system, false otherwise. ** blob is the binary data to either write as a symlink or as a file. ** zName is the name of the file or symlink to write. */ void create_symlink_or_file(int mayNeedDelete, int needLink, int mayBeLink, Blob* blob, const char* zName){ if (mayNeedDelete && (needLink || mayBeLink)) link_delete(zName); if (needLink) symlink_create(blob_str(blob), zName); else blob_write_to_file(blob, zName); } /* ** Copy symbolic link from zFrom to zTo. */ void symlink_copy(const char *zFrom, const char *zTo){ Blob content; blob_read_link(&content, zFrom); |
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507 508 509 510 511 512 513 514 515 516 517 518 519 520 | ** Returns zero upon success. */ int file_delete(const char *zFilename){ int rc; #ifdef _WIN32 wchar_t *z = fossil_utf8_to_filename(zFilename); rc = _wunlink(z); #else char *z = fossil_utf8_to_filename(zFilename); rc = unlink(zFilename); #endif fossil_filename_free(z); return rc; } | > > > > > > > > > > > > > > > > > > | 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 | ** Returns zero upon success. */ int file_delete(const char *zFilename){ int rc; #ifdef _WIN32 wchar_t *z = fossil_utf8_to_filename(zFilename); rc = _wunlink(z); #else char *z = fossil_utf8_to_filename(zFilename); rc = unlink(zFilename); #endif fossil_filename_free(z); return rc; } /* ** Delete a link. ** ** Returns zero upon success. */ int link_delete(const char *zFilename){ int rc; #ifdef _WIN32 wchar_t *z = fossil_utf8_to_filename(zFilename); rc = win32_unlink_rmdir(z); #else char *z = fossil_utf8_to_filename(zFilename); rc = unlink(zFilename); #endif fossil_filename_free(z); return rc; } |
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1108 1109 1110 1111 1112 1113 1114 | ** a boolean: "yes", "no", "true", "false", etc. */ void cmd_test_tree_name(void){ int i; Blob x; db_find_and_open_repository(0,0); blob_zero(&x); | < | 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 | ** a boolean: "yes", "no", "true", "false", etc. */ void cmd_test_tree_name(void){ int i; Blob x; db_find_and_open_repository(0,0); blob_zero(&x); for(i=2; i<g.argc; i++){ if( file_tree_name(g.argv[i], &x, 1) ){ fossil_print("%s\n", blob_buffer(&x)); blob_reset(&x); } } } |
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Changes to src/makeheaders.c.
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35 36 37 38 39 40 41 42 43 44 45 | */ #include <stdio.h> #include <stdlib.h> #include <ctype.h> #include <memory.h> #include <sys/stat.h> #include <assert.h> #if defined( __MINGW32__) || defined(__DMC__) || defined(_MSC_VER) || defined(__POCC__) # ifndef WIN32 # define WIN32 # endif | > > < | 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 | */ #include <stdio.h> #include <stdlib.h> #include <ctype.h> #include <memory.h> #include <sys/stat.h> #include <assert.h> #include <string.h> #if defined( __MINGW32__) || defined(__DMC__) || defined(_MSC_VER) || defined(__POCC__) # ifndef WIN32 # define WIN32 # endif #else # include <unistd.h> #endif /* ** Macros for debugging. */ |
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Changes to src/stash.c.
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239 240 241 242 243 244 245 | blob_read_link(&disk, zOPath); }else{ blob_read_from_file(&disk, zOPath); } content_get(rid, &a); blob_delta_apply(&a, &delta, &b); if( isLink == isNewLink && blob_compare(&disk, &a)==0 ){ | < < < < < < | < | 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 | blob_read_link(&disk, zOPath); }else{ blob_read_from_file(&disk, zOPath); } content_get(rid, &a); blob_delta_apply(&a, &delta, &b); if( isLink == isNewLink && blob_compare(&disk, &a)==0 ){ create_symlink_or_file(1, isLink, isNewLink, &b, zNPath); file_wd_setexe(zNPath, isExec); fossil_print("UPDATE %s\n", zNew); }else{ int rc; if( isLink || isNewLink ){ rc = -1; blob_zero(&b); /* because we reset it later */ |
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Changes to src/undo.c.
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68 69 70 71 72 73 74 | } if( old_exists ){ if( new_exists ){ fossil_print("%s %s\n", redoFlag ? "REDO" : "UNDO", zPathname); }else{ fossil_print("NEW %s\n", zPathname); } | < < < < < < | < | 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 | } if( old_exists ){ if( new_exists ){ fossil_print("%s %s\n", redoFlag ? "REDO" : "UNDO", zPathname); }else{ fossil_print("NEW %s\n", zPathname); } create_symlink_or_file(new_exists, old_link, new_link, &new, zFullname); file_wd_setexe(zFullname, old_exe); }else{ fossil_print("DELETE %s\n", zPathname); file_delete(zFullname); } blob_reset(&new); free(zFullname); |
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Changes to src/update.c.
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764 765 766 767 768 769 770 | vid = db_lget_int("checkout", 0); vfile_check_signature(vid, 0); db_multi_exec( "DELETE FROM vmerge;" "INSERT OR IGNORE INTO torevert " " SELECT pathname" " FROM vfile " | | | 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 | vid = db_lget_int("checkout", 0); vfile_check_signature(vid, 0); db_multi_exec( "DELETE FROM vmerge;" "INSERT OR IGNORE INTO torevert " " SELECT pathname" " FROM vfile " " WHERE chnged OR deleted OR rid=0 OR pathname!=origname OR islink;" ); } db_multi_exec( "INSERT OR IGNORE INTO torevert" " SELECT origname" " FROM vfile" " WHERE origname!=pathname AND pathname IN (SELECT name FROM torevert);" |
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806 807 808 809 810 811 812 | " WHERE pathname=%Q AND origname!=pathname;" "DELETE FROM vfile WHERE pathname=%Q", zFile, zFile ); }else{ sqlite3_int64 mtime; undo_save(zFile); | < < < < < < | < | 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 | " WHERE pathname=%Q AND origname!=pathname;" "DELETE FROM vfile WHERE pathname=%Q", zFile, zFile ); }else{ sqlite3_int64 mtime; undo_save(zFile); create_symlink_or_file(file_wd_size(zFull)>=0, isLink, file_wd_islink(zFull), &record, zFull); file_wd_setexe(zFull, isExe); fossil_print("REVERTED: %s\n", zFile); mtime = file_wd_mtime(zFull); db_multi_exec( "UPDATE vfile" " SET mtime=%lld, chnged=0, deleted=0, isexe=%d, islink=%d,mrid=rid" " WHERE pathname=%Q OR origname=%Q", |
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Changes to src/vfile.c.
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318 319 320 321 322 323 324 | } } if( verbose ) fossil_print("%s\n", &zName[nRepos]); if( file_wd_isdir(zName) == 1 ){ /*TODO(dchest): remove directories? */ fossil_fatal("%s is directory, cannot overwrite\n", zName); } | < < < < < < | < | 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 | } } if( verbose ) fossil_print("%s\n", &zName[nRepos]); if( file_wd_isdir(zName) == 1 ){ /*TODO(dchest): remove directories? */ fossil_fatal("%s is directory, cannot overwrite\n", zName); } create_symlink_or_file(file_wd_size(zName)>=0, isLink, file_wd_islink(zName), &content, zName); file_wd_setexe(zName, isExe); blob_reset(&content); db_multi_exec("UPDATE vfile SET mtime=%lld WHERE id=%d", file_wd_mtime(zName), id); } db_finalize(&q); } |
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Changes to src/winfile.c.
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26 27 28 29 30 31 32 | #include <versionhelpers.h> #include "winfile.h" #ifndef LABEL_SECURITY_INFORMATION # define LABEL_SECURITY_INFORMATION (0x00000010L) #endif | > > > | > > > > > > | | | | | | > > > > > > > > > > > | | | > > > > | | > > > > > | > | > | | > > > > > < < | < > | | | | | | | | | | | > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > > | < < | > > > > > | > > > > > > > > | 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 | #include <versionhelpers.h> #include "winfile.h" #ifndef LABEL_SECURITY_INFORMATION # define LABEL_SECURITY_INFORMATION (0x00000010L) #endif /* a couple defines to make the borrowed struct below compile */ #define _ANONYMOUS_UNION #define DUMMYUNIONNAME /* ** this structure copied on 20 Sept 2014 from ** https://reactos-mirror.googlecode.com/svn-history/r54752/branches/usb-bringup/include/ddk/ntifs.h ** which is a public domain file from the ReactOS DDK package. */ typedef struct _REPARSE_DATA_BUFFER { ULONG ReparseTag; USHORT ReparseDataLength; USHORT Reserved; _ANONYMOUS_UNION union { struct { USHORT SubstituteNameOffset; USHORT SubstituteNameLength; USHORT PrintNameOffset; USHORT PrintNameLength; ULONG Flags; WCHAR PathBuffer[1]; } SymbolicLinkReparseBuffer; struct { USHORT SubstituteNameOffset; USHORT SubstituteNameLength; USHORT PrintNameOffset; USHORT PrintNameLength; WCHAR PathBuffer[1]; } MountPointReparseBuffer; struct { UCHAR DataBuffer[1]; } GenericReparseBuffer; } DUMMYUNIONNAME; } REPARSE_DATA_BUFFER, *PREPARSE_DATA_BUFFER; #define LINK_BUFFER_SIZE 1024 /* ** Fill stat buf with information received from GetFileAttributesExW(). ** Does not follow symbolic links, returning instead information about ** the link itself. ** Returns 0 on success, 1 on failure. */ int win32_lstat(const wchar_t *zFilename, struct fossilStat *buf){ WIN32_FILE_ATTRIBUTE_DATA attr; int rc = GetFileAttributesExW(zFilename, GetFileExInfoStandard, &attr); if( rc ){ ssize_t tlen = 0; /* assume it is not a symbolic link */ /* if it is a reparse point it *might* be a symbolic link */ /* so defer to win32_readlink to actually check */ if (attr.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT){ char *tname = fossil_filename_to_utf8(zFilename); char tlink[LINK_BUFFER_SIZE]; tlen = win32_readlink(tname, tlink, sizeof(tlink)); fossil_filename_free(tname); } ULARGE_INTEGER ull; /* if a link was retrieved, it is a symlink, otherwise a dir or file */ buf->st_mode = (tlen > 0) ? S_IFLNK : ((attr.dwFileAttributes & FILE_ATTRIBUTE_DIRECTORY) ? S_IFDIR : S_IFREG); buf->st_size = (((i64)attr.nFileSizeHigh)<<32) | attr.nFileSizeLow; ull.LowPart = attr.ftLastWriteTime.dwLowDateTime; ull.HighPart = attr.ftLastWriteTime.dwHighDateTime; buf->st_mtime = ull.QuadPart / 10000000ULL - 11644473600ULL; } return !rc; } /* ** Fill stat buf with information received from win32_lstat(). ** If a symbolic link is found, follow it and return information about ** the target, repeating until an actual target is found. ** Limit the number of loop iterations so as to avoid an infinite loop ** due to circular links. This should never happen because ** GetFinalPathNameByHandleW() should always preclude that need, but being ** prepared to loop seems prudent, or at least not harmful. ** Returns 0 on success, 1 on failure. */ int win32_stat(const wchar_t *zFilename, struct fossilStat *buf){ int rc; HANDLE file; wchar_t nextFilename[LINK_BUFFER_SIZE]; DWORD len; int iterationsRemaining = 8; /* 8 is arbitrary, can be modified as needed */ while (iterationsRemaining-- > 0){ rc = win32_lstat(zFilename, buf); /* exit on error or not link */ if ((rc != 0) || (buf->st_mode != S_IFLNK)) break; /* it is a link, so open the linked file */ file = CreateFileW(zFilename, GENERIC_READ, 0, NULL, OPEN_EXISTING, 0, NULL); if ((file == NULL) || (file == INVALID_HANDLE_VALUE)){ rc = 1; break; } /* get the final path name and close the handle */ len = GetFinalPathNameByHandleW(file, nextFilename, LINK_BUFFER_SIZE - 1, 0); CloseHandle(file); /* if any problems getting the final path name error so exit */ if ((len <= 0) || (len > LINK_BUFFER_SIZE - 1)){ rc = 1; break; } /* prepare to try again just in case we have a chain to follow */ /* this shouldn't happen, but just trying to be safe */ zFilename = nextFilename; } return rc; } /* ** An implementation of a posix-like readlink function for win32. ** Copies the target of a symbolic link to buf if possible. ** Returns the length of the link copied to buf on success, -1 on failure. */ ssize_t win32_readlink(const char *path, char *buf, size_t bufsiz){ /* assume we're going to fail */ ssize_t rv = -1; /* does path reference a reparse point? */ WIN32_FILE_ATTRIBUTE_DATA attr; int rc = GetFileAttributesEx(path, GetFileExInfoStandard, &attr); if (rc && (attr.dwFileAttributes & FILE_ATTRIBUTE_REPARSE_POINT)){ /* since it is a reparse point, open it */ HANDLE file = CreateFile(path, GENERIC_READ, 0, NULL, OPEN_EXISTING, FILE_FLAG_OPEN_REPARSE_POINT, NULL); if ((file != NULL) && (file != INVALID_HANDLE_VALUE)){ /* use DeviceIoControl to get the reparse point data */ int data_size = sizeof(REPARSE_DATA_BUFFER) + LINK_BUFFER_SIZE * sizeof(wchar_t); REPARSE_DATA_BUFFER* data = fossil_malloc(data_size); DWORD data_used; data->ReparseTag = IO_REPARSE_TAG_SYMLINK; data->ReparseDataLength = 0; data->Reserved = 0; int rc = DeviceIoControl(file, FSCTL_GET_REPARSE_POINT, NULL, 0, data, data_size, &data_used, NULL); /* did the reparse point data fit into the desired buffer? */ if (rc && (data_used < data_size)){ /* it fit, so setup the print name for further processing */ USHORT offset = data->SymbolicLinkReparseBuffer.PrintNameOffset / sizeof(wchar_t), length = data->SymbolicLinkReparseBuffer.PrintNameLength / sizeof(wchar_t); char *temp; data->SymbolicLinkReparseBuffer.PathBuffer[offset + length] = 0; /* convert the filename to utf8, copy it, and discard the converted copy */ temp = fossil_filename_to_utf8(data->SymbolicLinkReparseBuffer.PathBuffer + offset); rv = strlen(temp); if (rv >= bufsiz) rv = bufsiz; memcpy(buf, temp, rv); fossil_filename_free(temp); } fossil_free(data); /* all done, close the reparse point */ CloseHandle(file); } } return rv; } /* ** Either unlink a file or remove a directory on win32 systems. ** To delete a symlink on a posix system, you simply unlink the entry. ** Unfortunately for our purposes, win32 differentiates between symlinks for ** files and for directories. Thus you must unlink a file symlink or rmdir a ** directory symlink. This is a convenience function used when we know we're ** deleting a symlink of some type. ** Returns 0 on success, 1 on failure. */ int win32_unlink_rmdir(const wchar_t *zFilename){ int rc = 0; fossilStat stat; if (win32_stat(zFilename, &stat) == 0){ if (stat.st_mode == S_IFDIR) rc = RemoveDirectoryW(zFilename); else rc = DeleteFileW(zFilename); } return !rc; } /* ** An implementation of a posix-like symlink function for win32. ** Attempts to create a file or directory symlink based on the target. ** Defaults to a file symlink if the target does not exist / can't be checked. ** Finally, if the symlink cannot be created for whatever reason (perhaps ** newpath is on a network share or a FAT derived file system), default to ** creation of a text file with the context of the link. ** Returns 0 on success, 1 on failure. */ int win32_symlink(const char *oldpath, const char *newpath){ fossilStat stat; int created = 0; DWORD flags = 0; wchar_t *zMbcs; /* does oldpath exist? is it a dir or a file? */ zMbcs = fossil_utf8_to_filename(oldpath); if (win32_stat(zMbcs, &stat) == 0){ if (stat.st_mode == S_IFDIR) flags = SYMBOLIC_LINK_FLAG_DIRECTORY; } fossil_filename_free(zMbcs); /* remove newpath before creating the symlink */ zMbcs = fossil_utf8_to_filename(newpath); win32_unlink_rmdir(zMbcs); fossil_filename_free(zMbcs); created = CreateSymbolicLink(newpath, oldpath, flags); /* if the symlink was not created, create a plain text file */ if (!created){ Blob content; blob_set(&content, oldpath); blob_write_to_file(&content, newpath); blob_reset(&content); created = 1; } return !created; } /* ** Check if symlinks are potentially supported on the current OS. ** Theoretically this code should work on any NT based version of windows ** but I have no way of testing that. The initial check for ** IsWindowsVistaOrGreater() should in theory eliminate any system prior to ** Windows Vista, but I have no way to test that at this time. ** Return 1 if supported, 0 if not. */ int win32_symlinks_supported(){ TOKEN_PRIVILEGES tp; LUID luid; HANDLE process, token; DWORD status; /* symlinks only supported on vista or greater */ |
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