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This initial implementation of 'git notes merge' only handles the trivial merge cases (i.e. where the merge is either a no-op, or a fast-forward). The patch includes testcases for these trivial merge cases. Future patches will extend the functionality of 'git notes merge'. This patch has been improved by the following contributions: - Stephen Boyd: Simplify argc logic - Stephen Boyd: Use test_commit - Ævar Arnfjörð Bjarmason: Don't use C99 comments. - Jonathan Nieder: Add constants for common verbosity values - Jonathan Nieder: Use trace_printf(...) instead of OUTPUT(o, 5, ...) - Jonathan Nieder: Remove extraneous show() function - Jonathan Nieder: Clarify handling of empty/missing notes ref in notes_merge() - Junio C Hamano: fixup minor style issues Thanks-to: Stephen Boyd <bebarino@gmail.com> Thanks-to: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Thanks-to: Jonathan Nieder <jrnieder@gmail.com> Thanks-to: Junio C Hamano <gitster@pobox.com> Signed-off-by: Johan Herland <johan@herland.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
#ifndef NOTES_MERGE_H
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#define NOTES_MERGE_H
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enum notes_merge_verbosity {
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NOTES_MERGE_VERBOSITY_DEFAULT = 2,
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NOTES_MERGE_VERBOSITY_MAX = 5
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};
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struct notes_merge_options {
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const char *local_ref;
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const char *remote_ref;
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int verbosity;
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};
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void init_notes_merge_options(struct notes_merge_options *o);
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/*
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* Merge notes from o->remote_ref into o->local_ref
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*
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* The commits given by the two refs are merged, producing one of the following
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* outcomes:
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*
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* 1. The merge trivially results in an existing commit (e.g. fast-forward or
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* already-up-to-date). The SHA1 of the result is written into 'result_sha1'
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* and 0 is returned.
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* 2. The merge fails. result_sha1 is set to null_sha1, and non-zero returned.
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*
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* Both o->local_ref and o->remote_ref must be given (non-NULL), but either ref
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* (although not both) may refer to a non-existing notes ref, in which case
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* that notes ref is interpreted as an empty notes tree, and the merge
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* trivially results in what the other ref points to.
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*/
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int notes_merge(struct notes_merge_options *o,
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unsigned char *result_sha1);
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#endif
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