alias: fix loss of non-zero return code in command aliases
This also includes test for shell aliases. It avoid using "false" command
because "man false" does not say "exit with 1" but "exit with a status code
indicating failure."
exchange: drop dead code
This code have been factorised and moved in its own function by
7d0bbb6dd730. We
actually read the result of this other computation in the very line before the
deleted block. I somehow forgot to remove the original code, but it is now
dead. Good bye duplicated computation.
import: add --partial flag to create a changeset despite failed hunks
The `hg import` command gains a `--partial` flag. When specified, a commit will
always be created from a patch import. Any hunk that fails to apply will
create .rej file, same as what `hg qimport` would do. This change is mainly
aimed at preserving changeset metadata when applying a patch, something very
important for reviewers.
In case of failure with `--partial`, `hg import` returns 1 and the following
message is displayed:
patch applied partially
(fix the .rej files and run `hg commit --amend`)
When multiple patches are imported, we stop at the first one with failed hunks.
In the future, someone may feel brave enough to tackle a --continue flag to
import.
update: introduce --tool for controlling the merge tool
Update is a kind of merge and may also need a merge tool and should have the
options described in the merge-tools help.