From: Francois Fleuret Date: Mon, 19 Apr 2010 16:12:47 +0000 (+0200) Subject: Added the -t, --time-sort option. X-Git-Url: https://fleuret.org/cgi-bin/gitweb/gitweb.cgi?a=commitdiff_plain;h=84317c21dc50141fff4a8f1fc1ac3c075e29923f;p=finddup.git Added the -t, --time-sort option. --- diff --git a/finddup.1 b/finddup.1 index 62ab0b8..3eec991 100644 --- a/finddup.1 +++ b/finddup.1 @@ -1,4 +1,4 @@ -.TH "FINDDUP" "1.0" "Mar 2010" "Francois Fleuret" "User Commands" +.TH "FINDDUP" "1.1" "Mar 2010" "Francois Fleuret" "User Commands" \" This man page was written by Francois Fleuret \" and is distributed under a Creative Commons Attribution-Share Alike @@ -47,13 +47,16 @@ ignore files and directories starting with a dot ignore empty files .TP \fB-c\fR, \fB--hide-matchings\fR -do not show which files from DIR2 corresponds to files from DIR1 +do not show which files from DIR2 correspond to files from DIR1 (hence, show only the files from DIR1 which have an identical twin in DIR2) .TP \fB-g\fR, \fB--no-group-ids\fR do not show the file group IDs .TP +\fB-t\fR, \fB--time-sort\fR +sort files in each group according to the modification times +.TP \fB-p\fR, \fB--show-progress\fR show progress information in stderr .TP diff --git a/finddup.c b/finddup.c index e881fff..2ef91df 100644 --- a/finddup.c +++ b/finddup.c @@ -23,7 +23,7 @@ * */ -#define VERSION_NUMBER "1.0" +#define VERSION_NUMBER "1.1" #define _BSD_SOURCE @@ -71,6 +71,9 @@ int same_inodes_are_different = 0; /* 1 means that comparison between two files with same inode will always be false */ +int sort_by_time = 0; /* 1 means to sort files in each group according + to the modification time */ + /********************************************************************/ /* malloc with error checking. */ @@ -99,6 +102,7 @@ struct file_node { struct file_node *next; char *name; size_t size; + time_t atime, mtime, ctime; ino_t inode; int group_id; /* one per identical file content */ int dir_id; /* 1 for DIR1, and 2 for DIR2 */ @@ -227,6 +231,9 @@ struct file_node *scan_directory(struct file_node *tail, const char *name) { tmp->next = tail; tmp->name = strdup(name); tmp->size = sb.st_size; + tmp->atime = sb.st_atime; + tmp->mtime = sb.st_mtime; + tmp->ctime = sb.st_ctime; tmp->inode = sb.st_ino; tmp->group_id = -1; tmp->dir_id = -1; @@ -274,12 +281,22 @@ int compare_nodes(const void *x1, const void *x2) { } else if((*f1)->group_id > (*f2)->group_id) { return 1; } else { - if((*f1)->dir_id < (*f2)->dir_id) { - return -1; - } else if((*f1)->dir_id > (*f2)->dir_id) { - return 1; + if(sort_by_time) { + if((*f1)->mtime < (*f2)->mtime) { + return -1; + } else if((*f1)->mtime > (*f2)->mtime) { + return 1; + } else { + return 0; + } } 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; + } } } } @@ -514,6 +531,7 @@ void usage(FILE *out) { fprintf(out, " -c, --hide-matchings do not show which files in DIR2 corresponds to\n"); fprintf(out, " those in DIR1\n"); fprintf(out, " -g, --no-group-ids do not show the file groups\n"); + fprintf(out, " -t, --time-sort sort according to modification time in each group\n"); fprintf(out, " -p, --show-progress show progress\n"); fprintf(out, " -r, --real-paths show the real file paths\n"); fprintf(out, " -i, --same-inodes-are-different\n"); @@ -530,6 +548,7 @@ static struct option long_options[] = { { "real-paths", no_argument, 0, 'r' }, { "hide-matchings", no_argument, 0, 'c' }, { "no-group-ids", no_argument, 0, 'g' }, + { "time-sort", no_argument, 0, 't' }, { "ignore-dots", no_argument, 0, 'd' }, { "ignore-empty", no_argument, 0, '0' }, { "show-progress", no_argument, 0, 'p' }, @@ -541,7 +560,7 @@ int main(int argc, char **argv) { setlocale (LC_ALL, ""); - while ((c = getopt_long(argc, argv, "hircgd0pm", + while ((c = getopt_long(argc, argv, "hircgtd0pm", long_options, NULL)) != -1) { switch (c) { @@ -571,6 +590,10 @@ int main(int argc, char **argv) { show_groups = 0; break; + case 't': + sort_by_time = 1; + break; + case 'p': show_progress = 1; break;