mpatch: switch alignment of wrapped line from tab to spaces with clang-format I may be a weird person for liking this style, but our C style is historically nominally the Linux Kernel style, and when you configure clang-format to be kernel-ish, this is what you get. If we want to change it, we can do so by tweaking the formatter rules in the future. Differential Revision: https://phab.mercurial-scm.org/D1132

mpatch: reformat function prototypes with clang-format Differential Revision: https://phab.mercurial-scm.org/D1131

contrib: remove check-code rule about indentation We're moving towards a clang-format world, and clang-format is able to wrap argument lists with spaces reliably, while still enforcing tabs globally. Let's let clang-format do its job, and not do as much C-style enforcement with regular expressions. Differential Revision: https://phab.mercurial-scm.org/D1130

clang-format: configuration for the clang-format source formatter Differential Revision: https://phab.mercurial-scm.org/D1129

merge: allow user to halt merge on merge-tool failures Depends on D932. Call the new _onfilemergefailure function when a merge tool reports failure via a return code. Differential Revision: https://phab.mercurial-scm.org/D951

filemerge: introduce functions to halt merge flow Depends on D931. This patch introduces functions and a config option that will allow a user to halt the merge if there are failures during a file merge. These functions will be used in the next patch. Differential Revision: https://phab.mercurial-scm.org/D932

amend: add a flag `-n/--note` to store note with amend This patch utilises the functionality added in previous patches and adds a flag to amend command in hgext/amend to add a note to the amend. Since the note is stored in the obsmarker metadata, this will only be useful when obsmarker creation is enabled, otherwise this is no-op. Not adding releasenotes part as we yet don't have a functionality in core to show the note. Differential Revision: https://phab.mercurial-scm.org/D1095

cmdutil: pass metadata from amend() to cleanupnodes `commit --amend` and amend command in core and extensions rely on cmdutil.amend() for amending a commit. So the logic to add a note to amend must reside here. This patch assumes that note will be passed in opts dictionary to the function and it will be passed to cleanupnodes and then createmarkers to store the note in the obsmarker metadata. After this patch, note can be stored on an amend changeset by passing notes as a part of opts to cmdutil.amend(). Differential Revision: https://phab.mercurial-scm.org/D1094

scmutil: add capability to cleanupnodes to take obsmarker metadata This patch adds a metadata argument to cleanupnodes() which will be dict and can be passed to obsmarker.createmarkers() and can be stored on the obsmarker. In cases when obsolescence is not enabled, the metadata argument is useless. This is a step towards storing a note in amend. Differential Revision: https://phab.mercurial-scm.org/D1093

test-hgweb-annotate-whitespace: make test compatible with chg D946 fixed a bunch of tests which had the same root cause. Please see that for details. This seems to be one of the newer tests which fails because of the same reason. Test Plan: Ran the test 'test-hgweb-annotate-whitespace.t' with and without the '--chg' option. Differential Revision: https://phab.mercurial-scm.org/D1124