From: Francois Fleuret Date: Sun, 7 Mar 2010 22:25:32 +0000 (+0100) Subject: Now able to list files existing in DIR1 which do not in DIR2. X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?p=finddup.git;a=commitdiff_plain;h=87eea2c3b5958b578cdf32f5e01d3c733bdf7615 Now able to list files existing in DIR1 which do not in DIR2. --- diff --git a/Makefile b/Makefile index 235ac49..d02a4d9 100644 --- a/Makefile +++ b/Makefile @@ -26,7 +26,7 @@ MAN_PATH = /usr/share/man/man1 LDFLAGS= -REVISION_NUMBER=\"$(shell cat REVISION_NUMBER)\" +UNAME=\"$(shell uname -srmn)\" ifeq ($(DEBUG),yes) OPTIMIZE_FLAG = -ggdb3 -DDEBUG -fno-omit-frame-pointer @@ -34,7 +34,7 @@ else OPTIMIZE_FLAG = -O2 endif -CFLAGS = -Wall -ansi -pedantic -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DREVISION_NUMBER=$(REVISION_NUMBER) $(OPTIMIZE_FLAG) +CFLAGS = -Wall -ansi -pedantic -D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64 -DUNAME="$(UNAME)" $(OPTIMIZE_FLAG) all: finddup diff --git a/finddup.1 b/finddup.1 index 36ae5a3..989cff9 100644 --- a/finddup.1 +++ b/finddup.1 @@ -10,7 +10,7 @@ finddup \- Find files common to several directories or not .SH "SYNOPSIS" -\fBfinddup\fP [OPTION]... [FILE]... +\fBfinddup\fP [OPTION]... DIR1 [[^]DIR2] .SH "DESCRIPTION" @@ -18,6 +18,12 @@ finddup \- Find files common to several directories or not common to two directories or files existing in one directories and not in another one. +With a single directory argument, prints the duplicate files found in +it. With two directories, prints the files common to both. + +If the second directory name starts with a ^, prints the files +existing in DIR1 which do not exist in DIR2. + .SH "OPTIONS" .TP \fB-h\fR @@ -28,7 +34,8 @@ shows the real path of the files .SH "BUGS" -None known, probably many though. +Every pair of different files with same content are listed, which +results in K^2 printed lines when K files are similar. .SH "AUTHOR" diff --git a/finddup.c b/finddup.c index 09c50d1..39a3df6 100644 --- a/finddup.c +++ b/finddup.c @@ -46,19 +46,11 @@ typedef int64_t size_sum_t; int ignore_dotfiles = 0; /* 1 means ignore files and directories starting with a dot */ -int forced_width = 0; /* -1 means no width limit, strictly positive - means limit, 0 means not active */ - -int forced_height = 0; /* -1 means no height limit, strictly positive - means limit, 0 means not active */ - -int fancy_size_display = 0; /* 1 means to use floating values with K, M and G - as units */ - -int reverse_sorting = 0; /* 1 means to show the large ones first */ +int show_realpaths = 0; /* 1 means ignore files and directories + starting with a dot */ -int show_top = 0; /* 1 means to show the top of the sorted list - instead of the bottom */ +int show_progress = 1; /* 1 means show a progress bar when we are in a + tty */ /********************************************************************/ @@ -152,6 +144,8 @@ int same_content(struct file_with_size *f1, struct file_with_size *f2) { if(s1 == s2) { if(s1 == 0) { + close(fd1); + close(fd2); return 1; } else { if(strncmp(buffer1, buffer2, s1)) { @@ -167,6 +161,8 @@ int same_content(struct file_with_size *f1, struct file_with_size *f2) { } } } else { + if(fd1 >= 0) { close(fd1); } + if(fd2 >= 0) { close(fd2); } return 0; } } @@ -183,10 +179,10 @@ struct file_with_size *scan_directory(struct file_with_size *tail, struct dirent *dir_e; struct stat dummy; struct file_with_size *tmp; - char subname[BUFFER_SIZE]; + char subname[PATH_MAX]; if(lstat(name, &dummy) != 0) { - fprintf(stderr, "Can not stat %s: %s\n", name, strerror(errno)); + fprintf(stderr, "Can not stat \"%s\": %s\n", name, strerror(errno)); exit(EXIT_FAILURE); } @@ -199,7 +195,7 @@ struct file_with_size *scan_directory(struct file_with_size *tail, if(dir) { while((dir_e = readdir(dir))) { if(!ignore_entry(dir_e->d_name)) { - snprintf(subname, BUFFER_SIZE, "%s/%s", name, dir_e->d_name); + snprintf(subname, PATH_MAX, "%s/%s", name, dir_e->d_name); tail = scan_directory(tail, subname); } } @@ -221,13 +217,50 @@ struct file_with_size *scan_directory(struct file_with_size *tail, void start(const char *dirname1, const char *dirname2) { struct file_with_size *list1, *list2; struct file_with_size *node1, *node2; + int not_in, found; + + if(dirname2[0] == '^') { + not_in = 1; + dirname2++; + } else { + not_in = 0; + } + list1 = scan_directory(0, dirname1); list2 = scan_directory(0, dirname2); - for(node1 = list1; node1; node1 = node1->next) { - for(node2 = list2; node2; node2 = node2->next) { - if(node1->inode != node2->inode && same_files(node1, node2)) { - printf("%s %s \n", node1->filename, node2->filename); + if(not_in) { + for(node1 = list1; node1; node1 = node1->next) { + found = 0; + + for(node2 = list2; !found && node2; node2 = node2->next) { + if(node1->inode != node2->inode && same_files(node1, node2)) { + found = 1; + } + } + + if(!found) { + if(show_realpaths) { + printf("%s\n", realpath(node1->filename, 0)); + } else { + printf("%s\n", node1->filename); + } + } + } + + } else { + + for(node1 = list1; node1; node1 = node1->next) { + for(node2 = list2; node2; node2 = node2->next) { + if(node1->inode != node2->inode && same_files(node1, node2)) { + if(show_realpaths) { + printf("%s %s\n", + realpath(node1->filename, 0), + realpath(node2->filename, 0)); + } else { + printf("%s %s\n", node1->filename, node2->filename); + } + } } } } @@ -247,7 +280,7 @@ int main(int argc, char **argv) { setlocale (LC_ALL, ""); while (1) { - c = getopt(argc, argv, "h"); + c = getopt(argc, argv, "hr"); if (c == -1) break; @@ -260,6 +293,10 @@ int main(int argc, char **argv) { break; + case 'r': + show_realpaths = 1; + break; + default: exit(EXIT_FAILURE); } @@ -267,8 +304,10 @@ int main(int argc, char **argv) { if(optind + 1 < argc) { start(argv[optind], argv[optind + 1]); + } else if(optind < argc) { + start(argv[optind], argv[optind]); } else { - fprintf(stderr, "%s [OPTIONS] \n", argv[0]); + fprintf(stderr, "%s [OPTIONS] [[^]]\n", argv[0]); exit(EXIT_FAILURE); }