X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=blobdiff_plain;f=finddup.c;h=6623dfa7a3900fbcd29e5dd4efc35a59c1a448d0;hb=0ffe9973e6e6f34916c9e1015ad54932eebf3448;hp=adf138ebc1530ff5e2e560a095d34c686f1d55dc;hpb=834f5d0970d97555f204eea4897204db0511e86e;p=finddup.git diff --git a/finddup.c b/finddup.c index adf138e..6623dfa 100644 --- a/finddup.c +++ b/finddup.c @@ -1,8 +1,8 @@ /* - * finddup is a simple utility find duplicated files, files common to - * several directories, or files present in one directory and not in - * another one. + * finddup is a simple utility to find duplicated files, files common + * to several directories, or files present in one directory and not + * in another one. * * Copyright (c) 2010 Francois Fleuret * Written by Francois Fleuret @@ -41,7 +41,8 @@ #include #include -#define BUFFER_SIZE 4096 +/* 1M really helps compared to 64k */ +#define READ_BUFFER_SIZE (1024 * 1024) typedef int64_t size_sum_t; @@ -50,6 +51,8 @@ typedef int64_t size_sum_t; int ignore_dotfiles = 0; /* 1 means ignore files and directories starting with a dot */ +int ignore_empty_files = 0; /* 1 means ignore empty files */ + int show_realpaths = 0; /* 1 means ignore files and directories starting with a dot */ @@ -65,6 +68,9 @@ int show_groups = 1; /* 1 means to show the group IDs when printing int ignore_same_inode = 0; /* 1 means that comparison between two file with same inode will always be false */ +int tty_width = -1; /* Positive value means what width to use to show + the progress bar */ + /********************************************************************/ /* malloc with error checking. */ @@ -87,21 +93,6 @@ int ignore_entry(const char *name) { (ignore_dotfiles && name[0] == '.'); } -void print_size_sum(size_sum_t s) { - char tmp[100]; - char *a = tmp + sizeof(tmp)/sizeof(char); - *(--a) = '\0'; - if(s) { - while(s) { - *(--a) = s%10 + '0'; - s /= 10; - } - } else { - *(--a) = '0'; - } - printf(a); -} - /**********************************************************************/ struct file_with_size { @@ -109,7 +100,7 @@ struct file_with_size { size_t size; ino_t inode; struct file_with_size *next; - int group_id; + int group_id, dir_id; }; void file_list_delete(struct file_with_size *head) { @@ -133,17 +124,17 @@ int file_list_length(struct file_with_size *head) { /**********************************************************************/ -int same_content(struct file_with_size *f1, struct file_with_size *f2) { +int same_content(struct file_with_size *f1, struct file_with_size *f2, + char *buffer1, char *buffer2) { int fd1, fd2, s1, s2; - char buffer1[BUFFER_SIZE], buffer2[BUFFER_SIZE]; fd1 = open(f1->filename, O_RDONLY); fd2 = open(f2->filename, O_RDONLY); if(fd1 >= 0 && fd2 >= 0) { while(1) { - s1 = read(fd1, buffer1, BUFFER_SIZE); - s2 = read(fd2, buffer2, BUFFER_SIZE); + s1 = read(fd1, buffer1, READ_BUFFER_SIZE); + s2 = read(fd2, buffer2, READ_BUFFER_SIZE); if(s1 < 0 || s2 < 0) { close(fd1); @@ -157,7 +148,7 @@ int same_content(struct file_with_size *f1, struct file_with_size *f2) { close(fd2); return 1; } else { - if(strncmp(buffer1, buffer2, s1)) { + if(memcmp(buffer1, buffer2, s1)) { close(fd1); close(fd2); return 0; @@ -188,11 +179,12 @@ int same_content(struct file_with_size *f1, struct file_with_size *f2) { } } -int same_files(struct file_with_size *f1, struct file_with_size *f2) { +int same_files(struct file_with_size *f1, struct file_with_size *f2, + char *buffer1, char *buffer2) { if(ignore_same_inode && f1->inode == f2->inode) { return 0; } - return f1->size == f2->size && same_content(f1, f2); + return f1->size == f2->size && same_content(f1, f2, buffer1, buffer2); } /**********************************************************************/ @@ -226,13 +218,18 @@ struct file_with_size *scan_directory(struct file_with_size *tail, closedir(dir); } else { if(S_ISREG(sb.st_mode)) { - tmp = safe_malloc(sizeof(struct file_with_size)); - tmp->next = tail; - tmp->filename = strdup(name); - tmp->size = sb.st_size; - tmp->inode = sb.st_ino; - tmp->group_id = -1; - tail = tmp; + if(!ignore_entry(name)) { + if(!ignore_empty_files || sb.st_size > 0) { + tmp = safe_malloc(sizeof(struct file_with_size)); + tmp->next = tail; + tmp->filename = strdup(name); + tmp->size = sb.st_size; + tmp->inode = sb.st_ino; + tmp->group_id = -1; + tmp->dir_id = -1; + tail = tmp; + } + } } } @@ -242,12 +239,17 @@ struct file_with_size *scan_directory(struct file_with_size *tail, void print_file(struct file_with_size *node) { char tmp[PATH_MAX + 1]; if(show_realpaths) { - if(show_groups) { - realpath(node->filename, tmp); - printf("%d %s\n", node->group_id, tmp); + if(realpath(node->filename, tmp)) { + if(show_groups) { + printf("%d %s\n", node->group_id, tmp); + } else { + printf("%s\n", tmp); + } } else { - realpath(node->filename, tmp); - printf("%s\n", tmp); + printf("Can not get the realpath of \"%s\": %s\n", + node->filename, + strerror(errno)); + exit(EXIT_FAILURE); } } else { if(show_groups) { @@ -269,7 +271,13 @@ int compare_nodes(const void *x1, const void *x2) { } else if((*f1)->group_id > (*f2)->group_id) { return 1; } else { - return 0; + if((*f1)->dir_id < (*f2)->dir_id) { + return -1; + } else if((*f1)->dir_id > (*f2)->dir_id) { + return 1; + } else { + return 0; + } } } @@ -284,7 +292,7 @@ void print_result(struct file_with_size *list1, struct file_with_size *list2) { if(node1->group_id >= 0) { nb++; } } - if(show_hits) { + if(list2) { for(node2 = list2; node2; node2 = node2->next) { if(node2->group_id >= 0) { nb++; } } @@ -299,7 +307,7 @@ void print_result(struct file_with_size *list1, struct file_with_size *list2) { } } - if(show_hits) { + if(list2) { for(node2 = list2; node2; node2 = node2->next) { if(node2->group_id >= 0) { nodes[n++] = node2; @@ -310,17 +318,44 @@ void print_result(struct file_with_size *list1, struct file_with_size *list2) { qsort(nodes, nb, sizeof(struct file_with_size *), compare_nodes); for(n = 0; n < nb; n++) { + if(!show_groups && n > 0 && nodes[n]->group_id != nodes[n-1]->group_id) { + printf("\n"); + } print_file(nodes[n]); } free(nodes); } +void print_progress(int max, int n, int *pp) { + int p, k; + int width; + if(show_progress && tty_width > 0) { + width = tty_width - 7; + p = (width * n) / (max - 1); + if(p > *pp) { + for(k = 0; k < p; k++) { + fprintf(stderr, "+"); + } + for(; k < width; k++) { + fprintf(stderr, "-"); + } + *pp = p; + p = (100 * n) / (max - 1); + fprintf(stderr, " [%3d%%]\r", p); + } + } +} + void start(const char *dirname1, const char *dirname2) { struct file_with_size *list1, *list2; struct file_with_size *node1, *node2; int not_in, found; - int k, p, pp, l1, n; + int nb_groups, nb_nodes; + int list1_length, previous_progress; + + char *buffer1 = safe_malloc(sizeof(char) * READ_BUFFER_SIZE); + char *buffer2 = safe_malloc(sizeof(char) * READ_BUFFER_SIZE); not_in = 0; @@ -333,6 +368,10 @@ void start(const char *dirname1, const char *dirname2) { if(dirname2) { if(strncmp(dirname2, "not:", 4) == 0) { not_in = 1; + /* groups are not computed in the not: mode */ + show_groups = 0; + dirname2 += 4; + } else if(strncmp(dirname2, "and:", 4) == 0) { dirname2 += 4; } if(show_progress) { @@ -347,26 +386,20 @@ void start(const char *dirname1, const char *dirname2) { fprintf(stderr, "done.\n"); } - k = 0; - pp = -1; - n = 0; - l1 = file_list_length(list1); + nb_groups = 0; + previous_progress = -1; + nb_nodes = 0; + list1_length = file_list_length(list1); if(not_in) { for(node1 = list1; node1; node1 = node1->next) { - if(show_progress) { - p = (100 * n)/l1; - if(p > pp) { - fprintf(stderr, "%d%%\n", p); - pp = p; - } - n++; - } + print_progress(list1_length, nb_nodes, &previous_progress); + nb_nodes++; found = 0; for(node2 = list2; !found && node2; node2 = node2->next) { - if(same_files(node1, node2)) { + if(same_files(node1, node2, buffer1, buffer2)) { found = 1; } } @@ -382,48 +415,56 @@ void start(const char *dirname1, const char *dirname2) { } else { for(node1 = list1; node1; node1 = node1->next) { - if(show_progress) { - p = (100 * n)/l1; - if(p > pp) { - fprintf(stderr, "%d%%\n", p); - pp = p; - } - n++; - } + print_progress(list1_length, nb_nodes, &previous_progress); + nb_nodes++; for(node2 = list2; node2; node2 = node2->next) { - if(same_files(node1, node2)) { - if(node1->group_id < 0) { - if(node2->group_id >= 0) { - node1->group_id = node2->group_id; - } else { - node1->group_id = k; - k++; + if(node1->group_id < 0 || node2->group_id < 0) { + if(same_files(node1, node2, buffer1, buffer2)) { + if(node1->group_id < 0) { + if(node2->group_id >= 0) { + node1->group_id = node2->group_id; + } else { + node1->group_id = nb_groups; + node1->dir_id = 1; + nb_groups++; + } + } + if(node2->group_id < 0) { + node2->group_id = node1->group_id; + node2->dir_id = 2; } - } - if(node2->group_id < 0) { - node2->group_id = node1->group_id; } } } } } - print_result(list1, list2); + if(show_progress) { + fprintf(stderr, "\n"); + } - file_list_delete(list1); if(dirname2) { + print_result(list1, list2); + file_list_delete(list1); file_list_delete(list2); + } else { + print_result(list1, 0); + file_list_delete(list1); } + + free(buffer1); + free(buffer2); } void print_help(FILE *out) { - fprintf(out, "Usage: finddup [OPTION]... DIR1 [[not:]DIR2]\n"); + fprintf(out, "Usage: finddup [OPTION]... DIR1 [[and:|not:]DIR2]\n"); fprintf(out, "Version %s (%s)\n", VERSION_NUMBER, UNAME); - fprintf(out, "Without DIR2, lists duplicated files found in DIR1. With DIR2, lists files common to both directories. With the not: prefix, lists files found in DIR1 which do not exist in DIR2.\n"); + fprintf(out, "Without DIR2, lists duplicated files found in DIR1. With DIR2, lists files common to both directories. With the not: prefix, lists files found in DIR1 which do not exist in DIR2. The and: prefix is the default and should be used only if you have a directory starting with 'not:'\n"); fprintf(out, "\n"); fprintf(out, " -h show this help\n"); fprintf(out, " -d ignore dot files and directories\n"); + fprintf(out, " -0 ignore empty files\n"); fprintf(out, " -c do not show which files in DIR2 corresponds to those in DIR1\n"); fprintf(out, " -g do not show the file groups\n"); fprintf(out, " -p show progress\n"); @@ -438,13 +479,14 @@ void print_help(FILE *out) { int main(int argc, char **argv) { int c; struct file_with_size *root; + struct winsize win; root = 0; setlocale (LC_ALL, ""); while (1) { - c = getopt(argc, argv, "hrcgdp"); + c = getopt(argc, argv, "hircgd0p"); if (c == -1) break; @@ -460,6 +502,10 @@ int main(int argc, char **argv) { ignore_dotfiles = 1; break; + case '0': + ignore_empty_files = 1; + break; + case 'r': show_realpaths = 1; break; @@ -485,6 +531,12 @@ int main(int argc, char **argv) { } } + if(show_progress && + isatty(STDOUT_FILENO) && + !ioctl (STDOUT_FILENO, TIOCGWINSZ, (char *) &win)) { + tty_width = win.ws_col; + } + if(optind + 2 == argc) { start(argv[optind], argv[optind + 1]); } else if(optind + 1 == argc) {