adding a

making snapshot of 0 files from rev 000000000000

making snapshot of 1 files from working dir

diff -Nr a.000000000000/a a/a

0a1

> a

making snapshot of 0 files from rev 000000000000

making snapshot of 1 files from working dir

diffing a.000000000000 a

hg falabala [OPT]... [FILE]...

use 'echo' to diff repository (or selected files)

            Show differences between revisions for the specified

            files, using the 'echo' program.

            When two revision arguments are given, then changes are

            shown between those revisions. If only one revision is

            specified then that revision is compared to the working

            directory, and, when no revisions are specified, the

            working directory files are compared to its parent.

options:

 -o --option   pass option to comparison program

 -r --rev      revision

 -I --include  include names matching the given patterns

 -X --exclude  exclude names matching the given patterns

making snapshot of 1 files from rev e27a2475d60a

making snapshot of 1 files from rev 5e49ec8d3f05

diffing a.e27a2475d60a a.5e49ec8d3f05

1 files updated, 0 files merged, 0 files removed, 0 files unresolved

1 files updated, 0 files merged, 1 files removed, 0 files unresolved

1 files updated, 0 files merged, 0 files removed, 0 files unresolved

(branch merge, don't forget to commit)

making snapshot of 1 files from rev 5e49ec8d3f05

making snapshot of 1 files from working dir

diffing a.5e49ec8d3f05 a

diff-like tools yield a non-zero exit code