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Clear error when rebase has broken parent reference #415

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Clear error when rebase has broken parent reference #415

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1348bbe
Show clearer error message when subrepo_parent is not an ancestor of …
OskiKervinen-MF Jul 19, 2019
f261515
Only verify the parent commit when it is going to be used
OskiKervinen-MF Jul 22, 2019
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13 changes: 13 additions & 0 deletions lib/git-subrepo
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Original file line number Diff line number Diff line change
Expand Up @@ -700,7 +700,20 @@ subrepo:branch() {
local first_gitrepo_commit=

o "Subrepo parent: $subrepo_parent"

if [[ -n "$subrepo_parent" ]]; then

# Check if the subrepo parent is an ancestor of HEAD.
# For example rebasing the commit that touched the subrepo
# could make the commit no longer match.
local parent_is_ancestor=
git merge-base --is-ancestor "$subrepo_parent" HEAD && parent_is_ancestor="true"
if [[ -z "$parent_is_ancestor" ]]; then
error "The previous commit where the subrepo was updated, '$subrepo_parent' is not an ancestor of HEAD. \n \
Did you rebase that commit?\n \
Try manually setting subrepo.parent in .gitrepo to the hash of the correct commit."
fi

local prev_commit=
local ancestor=
o "Create new commits with parents into the subrepo fetch"
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