1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/intl/icu/source/tools/toolutil/filetools.cpp Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,134 @@
1.4 +/******************************************************************************
1.5 + * Copyright (C) 2009-2013, International Business Machines
1.6 + * Corporation and others. All Rights Reserved.
1.7 + *******************************************************************************
1.8 + */
1.9 +
1.10 +#if U_PLATFORM == U_PF_MINGW
1.11 +// *cough* - for struct stat
1.12 +#ifdef __STRICT_ANSI__
1.13 +#undef __STRICT_ANSI__
1.14 +#endif
1.15 +#endif
1.16 +
1.17 +#include "filetools.h"
1.18 +#include "filestrm.h"
1.19 +#include "cstring.h"
1.20 +#include "unicode/putil.h"
1.21 +#include "putilimp.h"
1.22 +
1.23 +#include <stdio.h>
1.24 +#include <stdlib.h>
1.25 +#include <sys/stat.h>
1.26 +#include <time.h>
1.27 +#include <string.h>
1.28 +
1.29 +#if U_HAVE_DIRENT_H
1.30 +#include <dirent.h>
1.31 +typedef struct dirent DIRENT;
1.32 +
1.33 +#define MAX_PATH_SIZE 4096 /* Set the limit for the size of the path. */
1.34 +
1.35 +#define SKIP1 "."
1.36 +#define SKIP2 ".."
1.37 +#endif
1.38 +
1.39 +static int32_t whichFileModTimeIsLater(const char *file1, const char *file2);
1.40 +
1.41 +/*
1.42 + * Goes through the given directory recursive to compare each file's modification time with that of the file given.
1.43 + * Also can be given just one file to check against. Default value for isDir is FALSE.
1.44 + */
1.45 +U_CAPI UBool U_EXPORT2
1.46 +isFileModTimeLater(const char *filePath, const char *checkAgainst, UBool isDir) {
1.47 + UBool isLatest = TRUE;
1.48 +
1.49 + if (filePath == NULL || checkAgainst == NULL) {
1.50 + return FALSE;
1.51 + }
1.52 +
1.53 + if (isDir == TRUE) {
1.54 +#if U_HAVE_DIRENT_H
1.55 + DIR *pDir = NULL;
1.56 + if ((pDir= opendir(checkAgainst)) != NULL) {
1.57 + DIR *subDirp = NULL;
1.58 + DIRENT *dirEntry = NULL;
1.59 +
1.60 + while ((dirEntry = readdir(pDir)) != NULL) {
1.61 + if (uprv_strcmp(dirEntry->d_name, SKIP1) != 0 && uprv_strcmp(dirEntry->d_name, SKIP2) != 0) {
1.62 + char newpath[MAX_PATH_SIZE] = "";
1.63 + uprv_strcpy(newpath, checkAgainst);
1.64 + uprv_strcat(newpath, U_FILE_SEP_STRING);
1.65 + uprv_strcat(newpath, dirEntry->d_name);
1.66 +
1.67 + if ((subDirp = opendir(newpath)) != NULL) {
1.68 + /* If this new path is a directory, make a recursive call with the newpath. */
1.69 + closedir(subDirp);
1.70 + isLatest = isFileModTimeLater(filePath, newpath, isDir);
1.71 + if (!isLatest) {
1.72 + break;
1.73 + }
1.74 + } else {
1.75 + int32_t latest = whichFileModTimeIsLater(filePath, newpath);
1.76 + if (latest < 0 || latest == 2) {
1.77 + isLatest = FALSE;
1.78 + break;
1.79 + }
1.80 + }
1.81 +
1.82 + }
1.83 + }
1.84 + closedir(pDir);
1.85 + } else {
1.86 + fprintf(stderr, "Unable to open directory: %s\n", checkAgainst);
1.87 + return FALSE;
1.88 + }
1.89 +#endif
1.90 + } else {
1.91 + if (T_FileStream_file_exists(checkAgainst)) {
1.92 + int32_t latest = whichFileModTimeIsLater(filePath, checkAgainst);
1.93 + if (latest < 0 || latest == 2) {
1.94 + isLatest = FALSE;
1.95 + }
1.96 + } else {
1.97 + isLatest = FALSE;
1.98 + }
1.99 + }
1.100 +
1.101 + return isLatest;
1.102 +}
1.103 +
1.104 +/* Compares the mod time of both files returning a number indicating which one is later. -1 if error ocurs. */
1.105 +static int32_t whichFileModTimeIsLater(const char *file1, const char *file2) {
1.106 + int32_t result = 0;
1.107 + struct stat stbuf1, stbuf2;
1.108 +
1.109 + if (stat(file1, &stbuf1) == 0 && stat(file2, &stbuf2) == 0) {
1.110 + time_t modtime1, modtime2;
1.111 + double diff;
1.112 +
1.113 + modtime1 = stbuf1.st_mtime;
1.114 + modtime2 = stbuf2.st_mtime;
1.115 +
1.116 + diff = difftime(modtime1, modtime2);
1.117 + if (diff < 0.0) {
1.118 + result = 2;
1.119 + } else if (diff > 0.0) {
1.120 + result = 1;
1.121 + }
1.122 +
1.123 + } else {
1.124 + fprintf(stderr, "Unable to get stats from file: %s or %s\n", file1, file2);
1.125 + result = -1;
1.126 + }
1.127 +
1.128 + return result;
1.129 +}
1.130 +
1.131 +/* Swap the file separater character given with the new one in the file path. */
1.132 +U_CAPI void U_EXPORT2
1.133 +swapFileSepChar(char *filePath, const char oldFileSepChar, const char newFileSepChar) {
1.134 + for (int32_t i = 0, length = uprv_strlen(filePath); i < length; i++) {
1.135 + filePath[i] = (filePath[i] == oldFileSepChar ) ? newFileSepChar : filePath[i];
1.136 + }
1.137 +}
