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intl/icu/source/tools/toolutil/filetools.cpp@6474c204b198 (annotated)

intl/icu/source/tools/toolutil/filetools.cpp

Wed, 31 Dec 2014 06:09:35 +0100

author

Michael Schloh von Bennewitz <michael@schloh.com>

date

Wed, 31 Dec 2014 06:09:35 +0100

changeset 0

6474c204b198

permissions

-rw-r--r--

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

michael@0	1	/******************************************************************************
michael@0	2	* Copyright (C) 2009-2013, International Business Machines
michael@0	3	* Corporation and others. All Rights Reserved.
michael@0	4	*******************************************************************************
michael@0	5	*/
michael@0	6
michael@0	7	#if U_PLATFORM == U_PF_MINGW
michael@0	8	// *cough* - for struct stat
michael@0	9	#ifdef __STRICT_ANSI__
michael@0	10	#undef __STRICT_ANSI__
michael@0	11	#endif
michael@0	12	#endif
michael@0	13
michael@0	14	#include "filetools.h"
michael@0	15	#include "filestrm.h"
michael@0	16	#include "cstring.h"
michael@0	17	#include "unicode/putil.h"
michael@0	18	#include "putilimp.h"
michael@0	19
michael@0	20	#include <stdio.h>
michael@0	21	#include <stdlib.h>
michael@0	22	#include <sys/stat.h>
michael@0	23	#include <time.h>
michael@0	24	#include <string.h>
michael@0	25
michael@0	26	#if U_HAVE_DIRENT_H
michael@0	27	#include <dirent.h>
michael@0	28	typedef struct dirent DIRENT;
michael@0	29
michael@0	30	#define MAX_PATH_SIZE 4096 /* Set the limit for the size of the path. */
michael@0	31
michael@0	32	#define SKIP1 "."
michael@0	33	#define SKIP2 ".."
michael@0	34	#endif
michael@0	35
michael@0	36	static int32_t whichFileModTimeIsLater(const char *file1, const char *file2);
michael@0	37
michael@0	38	/*
michael@0	39	* Goes through the given directory recursive to compare each file's modification time with that of the file given.
michael@0	40	* Also can be given just one file to check against. Default value for isDir is FALSE.
michael@0	41	*/
michael@0	42	U_CAPI UBool U_EXPORT2
michael@0	43	isFileModTimeLater(const char *filePath, const char *checkAgainst, UBool isDir) {
michael@0	44	UBool isLatest = TRUE;
michael@0	45
michael@0	46	if (filePath == NULL || checkAgainst == NULL) {
michael@0	47	return FALSE;
michael@0	48	}
michael@0	49
michael@0	50	if (isDir == TRUE) {
michael@0	51	#if U_HAVE_DIRENT_H
michael@0	52	DIR *pDir = NULL;
michael@0	53	if ((pDir= opendir(checkAgainst)) != NULL) {
michael@0	54	DIR *subDirp = NULL;
michael@0	55	DIRENT *dirEntry = NULL;
michael@0	56
michael@0	57	while ((dirEntry = readdir(pDir)) != NULL) {
michael@0	58	if (uprv_strcmp(dirEntry->d_name, SKIP1) != 0 && uprv_strcmp(dirEntry->d_name, SKIP2) != 0) {
michael@0	59	char newpath[MAX_PATH_SIZE] = "";
michael@0	60	uprv_strcpy(newpath, checkAgainst);
michael@0	61	uprv_strcat(newpath, U_FILE_SEP_STRING);
michael@0	62	uprv_strcat(newpath, dirEntry->d_name);
michael@0	63
michael@0	64	if ((subDirp = opendir(newpath)) != NULL) {
michael@0	65	/* If this new path is a directory, make a recursive call with the newpath. */
michael@0	66	closedir(subDirp);
michael@0	67	isLatest = isFileModTimeLater(filePath, newpath, isDir);
michael@0	68	if (!isLatest) {
michael@0	69	break;
michael@0	70	}
michael@0	71	} else {
michael@0	72	int32_t latest = whichFileModTimeIsLater(filePath, newpath);
michael@0	73	if (latest < 0 || latest == 2) {
michael@0	74	isLatest = FALSE;
michael@0	75	break;
michael@0	76	}
michael@0	77	}
michael@0	78
michael@0	79	}
michael@0	80	}
michael@0	81	closedir(pDir);
michael@0	82	} else {
michael@0	83	fprintf(stderr, "Unable to open directory: %s\n", checkAgainst);
michael@0	84	return FALSE;
michael@0	85	}
michael@0	86	#endif
michael@0	87	} else {
michael@0	88	if (T_FileStream_file_exists(checkAgainst)) {
michael@0	89	int32_t latest = whichFileModTimeIsLater(filePath, checkAgainst);
michael@0	90	if (latest < 0 || latest == 2) {
michael@0	91	isLatest = FALSE;
michael@0	92	}
michael@0	93	} else {
michael@0	94	isLatest = FALSE;
michael@0	95	}
michael@0	96	}
michael@0	97
michael@0	98	return isLatest;
michael@0	99	}
michael@0	100
michael@0	101	/* Compares the mod time of both files returning a number indicating which one is later. -1 if error ocurs. */
michael@0	102	static int32_t whichFileModTimeIsLater(const char *file1, const char *file2) {
michael@0	103	int32_t result = 0;
michael@0	104	struct stat stbuf1, stbuf2;
michael@0	105
michael@0	106	if (stat(file1, &stbuf1) == 0 && stat(file2, &stbuf2) == 0) {
michael@0	107	time_t modtime1, modtime2;
michael@0	108	double diff;
michael@0	109
michael@0	110	modtime1 = stbuf1.st_mtime;
michael@0	111	modtime2 = stbuf2.st_mtime;
michael@0	112
michael@0	113	diff = difftime(modtime1, modtime2);
michael@0	114	if (diff < 0.0) {
michael@0	115	result = 2;
michael@0	116	} else if (diff > 0.0) {
michael@0	117	result = 1;
michael@0	118	}
michael@0	119
michael@0	120	} else {
michael@0	121	fprintf(stderr, "Unable to get stats from file: %s or %s\n", file1, file2);
michael@0	122	result = -1;
michael@0	123	}
michael@0	124
michael@0	125	return result;
michael@0	126	}
michael@0	127
michael@0	128	/* Swap the file separater character given with the new one in the file path. */
michael@0	129	U_CAPI void U_EXPORT2
michael@0	130	swapFileSepChar(char *filePath, const char oldFileSepChar, const char newFileSepChar) {
michael@0	131	for (int32_t i = 0, length = uprv_strlen(filePath); i < length; i++) {
michael@0	132	filePath[i] = (filePath[i] == oldFileSepChar ) ? newFileSepChar : filePath[i];
michael@0	133	}
michael@0	134	}