Display existing hard links in result sets
This is a breaking change in the plain text output,
but somehow the list displayed in case of existing hard links
was arbitrary, since the all the hardlinked filenames were not displayed.
Here's a sample JSON result with this patch:
{
"file_size": 9216,
"paths": [
"test_tree/f09-1_5.raw",
"test_tree/f09-4_5.raw"
],
"links": {
"test_tree/f09-1_5.raw": [
"test_tree/f09-2_5.raw",
"test_tree/f09-3_5.raw"
],
"test_tree/f09-4_5.raw": [
"test_tree/f09-5_5.raw"
]
}
}
Here the 5 files have the same contents, but there are two hardlink groups:
"test_tree/f09-1_5.raw"
"test_tree/f09-2_5.raw"
"test_tree/f09-3_5.raw"
are hard-linked, and
"test_tree/f09-4_5.raw"
"test_tree/f09-5_5.raw"
are hard-linked.
Here's the same set displayed With the regular text output:
Group #5 (2 files * 9216 bytes):
test_tree/f09-1_5.raw
test_tree/f09-2_5.raw
test_tree/f09-3_5.raw
test_tree/f09-4_5.raw
test_tree/f09-5_5.raw
(The link file names are indented using 1 space character.)
/*
* Copyright (C) 2014-2018 Mikael Berthe <mikael@lilotux.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or (at
* your option) any later version.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
package main
// Implement a sort interface for the list of duplicate groups
type byGroupFileSize foListList
func (a byGroupFileSize) Len() int { return len(a) }
func (a byGroupFileSize) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
func (a byGroupFileSize) Less(i, j int) bool {
// Since this is supposed to be used for duplicate lists,
// we use the size of the first file of the group.
if a[i][0].Size() == a[j][0].Size() {
return a[i][0].FilePath < a[j][0].FilePath
}
return a[i][0].Size() < a[j][0].Size()
}
// Implement a sort interface for a slice of files
type byFilePathName FileObjList
func (a byFilePathName) Len() int { return len(a) }
func (a byFilePathName) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
func (a byFilePathName) Less(i, j int) bool {
return a[i].FilePath < a[j].FilePath
}