From: Francois Fleuret Date: Wed, 15 Dec 2010 19:03:54 +0000 (+0100) Subject: Added the -e option to execute a command for each group of identical files. X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=commitdiff_plain;h=069e440749c66d6fd7a9aa89ef7c31df1b3f34ea;p=finddup.git Added the -e option to execute a command for each group of identical files. --- diff --git a/finddup.1 b/finddup.1 index abfc209..8a284ec 100644 --- a/finddup.1 +++ b/finddup.1 @@ -68,6 +68,10 @@ show the real path of the files .TP \fB-i\fR, \fB--same-inodes-are-different\fR files with same inode are considered as different +.TP +\fB-e \fI\fR, \fB--exec \fI\fR +execute the provided command for each group of identical files, with +their names as arguments .SH "BUGS" diff --git a/finddup.c b/finddup.c index b1a8474..c0a51a1 100644 --- a/finddup.c +++ b/finddup.c @@ -30,6 +30,7 @@ #include #include #include +#include #include #include #include @@ -74,6 +75,9 @@ int same_inodes_are_different = 0; /* 1 means that comparison between int sort_by_time = 0; /* 1 means to sort files in each group according to the modification time */ +char *command_to_exec = 0; /* the name of the command to exec for each + group of identical files */ + /********************************************************************/ /* malloc with error checking. */ @@ -323,6 +327,49 @@ int compare_nodes(const void *x1, const void *x2) { } } +void exec_command(int nb, struct file_node **nodes) { + char **args; + int max_group_size = 0, group_size, m, n, status; + pid_t pid; + + for(n = 0; n < nb; n++) { + if(n == 0 || nodes[n]->group_id != nodes[n-1]->group_id) { + group_size = 0; + } + group_size++; + if(group_size > max_group_size) { + max_group_size = group_size; + } + } + + args = safe_malloc((max_group_size + 2) * sizeof(char *)); + args[0] = command_to_exec; + + n = 0; + while(n < nb) { + m = n; + while(n < nb && nodes[n]->group_id == nodes[m]->group_id) { + args[n - m + 1] = nodes[n]->name; + n++; + } + args[n - m + 1] = 0; + pid = fork(); + if(pid < 0) { + } else if(pid == 0) { + if(execvp(command_to_exec, args) < 0) { + perror("execvp"); + exit(EXIT_FAILURE); + } + } else { + while(wait(&status) != pid); + if(status > 0) { + exit(EXIT_FAILURE); + } + } + } + + free(args); +} void print_result(struct file_node *list1, struct file_node *list2) { struct file_node *node1, *node2; @@ -359,11 +406,15 @@ void print_result(struct file_node *list1, struct file_node *list2) { qsort(nodes, nb, sizeof(struct file_node *), compare_nodes); - for(n = 0; n < nb; n++) { - if(!show_groups && n > 0 && nodes[n]->group_id != nodes[n-1]->group_id) { - printf("\n"); + if(command_to_exec) { + exec_command(nb, nodes); + } else { + 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]); } - print_file(nodes[n]); } free(nodes); @@ -544,6 +595,9 @@ void usage(FILE *out) { fprintf(out, " -r, --real-paths show the real file paths\n"); fprintf(out, " -i, --same-inodes-are-different\n"); fprintf(out, " consider files with same inode as different\n"); + fprintf(out, " -e , --exec \n"); + fprintf(out, " execute the provided command for each group of\n"); + fprintf(out, " identical files, with their names as arguments\n"); fprintf(out, "\n"); fprintf(out, "Report bugs and comments to .\n"); } @@ -561,6 +615,7 @@ static struct option long_options[] = { { "ignore-dots", no_argument, 0, 'd' }, { "ignore-empty", no_argument, 0, '0' }, { "show-progress", no_argument, 0, 'p' }, + { "exec", 1, 0, 'e' }, { 0, 0, 0, 0 } }; @@ -569,7 +624,7 @@ int main(int argc, char **argv) { setlocale (LC_ALL, ""); - while ((c = getopt_long(argc, argv, "vhircgtd0pm", + while ((c = getopt_long(argc, argv, "vhircgtd0pme:", long_options, NULL)) != -1) { switch (c) { @@ -616,6 +671,13 @@ int main(int argc, char **argv) { show_hits = 0; break; + case 'e': + if(command_to_exec != 0) { + free(command_to_exec); + } + command_to_exec = strdup(optarg); + break; + default: usage(stderr); exit(EXIT_FAILURE);