From 1c4dfb5efd0d992cd324ffcaae545f5d4edff129 Mon Sep 17 00:00:00 2001
From: Michael Vrable <mvrable@cs.ucsd.edu>
Date: Fri, 18 May 2007 15:47:36 -0700
Subject: [PATCH] Add rudimentary command-line parsing and support for file
exclusions.
---
scandir.cc | 103 +++++++++++++++++++++++++++++++++++++++++++++--------
1 file changed, 88 insertions(+), 15 deletions(-)
diff --git a/scandir.cc b/scandir.cc
index f8f6127..a82bc5e 100644
--- a/scandir.cc
+++ b/scandir.cc
@@ -1,25 +1,26 @@
/* Recursively descend the filesystem and visit each file. */
-#include <stdio.h>
-#include <stdlib.h>
-#include <stdint.h>
#include <dirent.h>
#include <errno.h>
#include <fcntl.h>
-#include <pwd.h>
+#include <getopt.h>
#include <grp.h>
-#include <sys/types.h>
+#include <pwd.h>
+#include <stdint.h>
+#include <stdio.h>
+#include <stdlib.h>
#include <sys/stat.h>
+#include <sys/types.h>
#include <unistd.h>
#include <algorithm>
-#include <string>
-#include <list>
-#include <vector>
-#include <iostream>
#include <fstream>
-#include <sstream>
+#include <iostream>
+#include <list>
#include <set>
+#include <sstream>
+#include <string>
+#include <vector>
#include "format.h"
#include "localdb.h"
@@ -55,6 +56,9 @@ std::set<string> segment_list;
void scandir(const string& path);
+/* Selection of files to include/exclude in the snapshot. */
+std::list<string> excludes;
+
/* Ensure contents of metadata are flushed to an object. */
void metadata_flush()
{
@@ -201,6 +205,16 @@ void scanfile(const string& path)
// Set to true if the item is a directory and we should recursively scan
bool recurse = false;
+ // Check this file against the include/exclude list to see if it should be
+ // considered
+ for (list<string>::iterator i = excludes.begin();
+ i != excludes.end(); ++i) {
+ if (path == *i) {
+ printf("Excluding %s\n", path.c_str());
+ return;
+ }
+ }
+
dictionary file_info;
lstat(path.c_str(), &stat_buf);
@@ -340,22 +354,81 @@ void scandir(const string& path)
for (vector<string>::iterator i = contents.begin();
i != contents.end(); ++i) {
const string& filename = *i;
- scanfile(path + "/" + filename);
+ if (path == ".")
+ scanfile(filename);
+ else
+ scanfile(path + "/" + filename);
}
closedir(dir);
}
-int main(int argc, char *argv[])
+void usage(const char *program)
{
- block_buf = new char[LBS_BLOCK_SIZE];
+ fprintf(stderr,
+ "Usage: %s [OPTION]... SOURCE DEST\n"
+ "Produce backup snapshot of files in SOURCE and store to DEST.\n"
+ "\n"
+ "Options:\n"
+ " --exclude=PATH exclude files in PATH from snapshot\n"
+ " --localdb=PATH local backup metadata is stored in PATH\n",
+ program);
+}
+int main(int argc, char *argv[])
+{
+ string backup_source = ".";
string backup_dest = ".";
+ string localdb_dir = "";
+
+ while (1) {
+ static struct option long_options[] = {
+ {"localdb", 1, 0, 0}, // 0
+ {"exclude", 1, 0, 0}, // 1
+ {NULL, 0, 0, 0},
+ };
- if (argc > 1)
- backup_dest = argv[1];
+ int long_index;
+ int c = getopt_long(argc, argv, "", long_options, &long_index);
+
+ if (c == -1)
+ break;
+
+ if (c == 0) {
+ switch (long_index) {
+ case 0: // --localdb
+ localdb_dir = optarg;
+ break;
+ case 1: // --exclude
+ excludes.push_back(optarg);
+ break;
+ default:
+ fprintf(stderr, "Unhandled long option!\n");
+ return 1;
+ }
+ } else {
+ usage(argv[0]);
+ return 1;
+ }
+ }
+
+ if (argc < optind + 2) {
+ usage(argv[0]);
+ return 1;
+ }
+
+ backup_source = argv[optind];
+ backup_dest = argv[argc - 1];
+
+ if (localdb_dir == "") {
+ localdb_dir = backup_dest;
+ }
+
+ printf("Source: %s, Dest: %s\n",
+ backup_source.c_str(), backup_dest.c_str());
tss = new TarSegmentStore(backup_dest);
+ block_buf = new char[LBS_BLOCK_SIZE];
/* Write a backup descriptor file, which says which segments are needed and
* where to start to restore this snapshot. The filename is based on the
--
2.20.1