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upload-pack: fix off-by-one depth calculation in shallow clone
get_shallow_commits() is used to determine the cut points at a given depth (i.e. the number of commits in a chain that the user likes to get). However we count current depth up to the commit "commit" but we do the cutting at its parents (i.e. current depth + 1). This makes upload-pack always return one commit more than requested. This patch fixes it. Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
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@ -72,8 +72,14 @@ struct commit_list *get_shallow_commits(struct object_array *heads, int depth,
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}
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if (parse_commit(commit))
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die("invalid commit");
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commit->object.flags |= not_shallow_flag;
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cur_depth++;
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if (cur_depth >= depth) {
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commit_list_insert(commit, &result);
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commit->object.flags |= shallow_flag;
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commit = NULL;
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continue;
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}
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commit->object.flags |= not_shallow_flag;
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for (p = commit->parents, commit = NULL; p; p = p->next) {
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if (!p->item->util) {
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int *pointer = xmalloc(sizeof(int));
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@ -130,16 +130,25 @@ test_expect_success 'single given branch clone' '
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test_must_fail git --git-dir=branch-a/.git rev-parse origin/B
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'
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test_expect_success 'clone shallow depth 1' '
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git clone --no-single-branch --depth 1 "file://$(pwd)/." shallow0 &&
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test "`git --git-dir=shallow0/.git rev-list --count HEAD`" = 1
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'
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test_expect_success 'clone shallow' '
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git clone --no-single-branch --depth 2 "file://$(pwd)/." shallow
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'
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test_expect_success 'clone shallow depth count' '
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test "`git --git-dir=shallow/.git rev-list --count HEAD`" = 2
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'
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test_expect_success 'clone shallow object count' '
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(
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cd shallow &&
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git count-objects -v
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) > count.shallow &&
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grep "^in-pack: 18" count.shallow
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grep "^in-pack: 12" count.shallow
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'
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test_expect_success 'clone shallow object count (part 2)' '
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@ -256,12 +265,16 @@ test_expect_success 'additional simple shallow deepenings' '
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)
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'
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test_expect_success 'clone shallow depth count' '
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test "`git --git-dir=shallow/.git rev-list --count HEAD`" = 11
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'
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test_expect_success 'clone shallow object count' '
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(
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cd shallow &&
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git count-objects -v
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) > count.shallow &&
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grep "^count: 52" count.shallow
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grep "^count: 55" count.shallow
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'
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test_expect_success 'fetch --no-shallow on full repo' '
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@ -293,7 +306,7 @@ test_expect_success 'clone shallow object count' '
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cd shallow2 &&
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git count-objects -v
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) > count.shallow2 &&
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grep "^in-pack: 6" count.shallow2
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grep "^in-pack: 3" count.shallow2
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'
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test_expect_success 'clone shallow with --branch' '
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@ -301,7 +314,7 @@ test_expect_success 'clone shallow with --branch' '
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'
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test_expect_success 'clone shallow object count' '
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echo "in-pack: 6" > count3.expected &&
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echo "in-pack: 3" > count3.expected &&
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GIT_DIR=shallow3/.git git count-objects -v |
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grep "^in-pack" > count3.actual &&
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test_cmp count3.expected count3.actual
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@ -330,7 +343,7 @@ EOF
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GIT_DIR=shallow6/.git git tag -l >taglist.actual &&
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test_cmp taglist.expected taglist.actual &&
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echo "in-pack: 7" > count6.expected &&
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echo "in-pack: 4" > count6.expected &&
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GIT_DIR=shallow6/.git git count-objects -v |
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grep "^in-pack" > count6.actual &&
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test_cmp count6.expected count6.actual
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@ -345,7 +358,7 @@ EOF
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GIT_DIR=shallow7/.git git tag -l >taglist.actual &&
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test_cmp taglist.expected taglist.actual &&
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echo "in-pack: 7" > count7.expected &&
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echo "in-pack: 4" > count7.expected &&
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GIT_DIR=shallow7/.git git count-objects -v |
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grep "^in-pack" > count7.actual &&
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test_cmp count7.expected count7.actual
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