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41fa7d2eae
If the remote peer upload-pack process supports the include-tag
protocol extension then we can avoid running a second fetch cycle
on the client side by letting the server send us the annotated tags
along with the objects it is packing for us. In the following graph
we can now fetch both "tag1" and "tag2" on the same connection that
we fetched "master" from the remote when we only have L available
on the local side:
T - tag1 S - tag2
/ /
L - o ------ o ------ B
\ \
\ \
origin/master master
The objects for "tag1" are implicitly downloaded without our direct
knowledge. The existing "quickfetch" optimization within git-fetch
discovers that tag1 is complete after the first connection and does
not open a second connection.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
150 lines
2.9 KiB
Bash
Executable file
150 lines
2.9 KiB
Bash
Executable file
#!/bin/sh
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test_description='test automatic tag following'
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. ./test-lib.sh
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# End state of the repository:
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#
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# T - tag1 S - tag2
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# / /
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# L - A ------ O ------ B
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# \ \ \
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# \ C - origin/cat \
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# origin/master master
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test_expect_success setup '
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test_tick &&
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echo ichi >file &&
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git add file &&
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git commit -m L &&
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L=$(git rev-parse --verify HEAD) &&
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(
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mkdir cloned &&
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cd cloned &&
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git init-db &&
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git remote add -f origin ..
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) &&
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test_tick &&
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echo A >file &&
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git add file &&
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git commit -m A &&
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A=$(git rev-parse --verify HEAD)
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'
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U=UPLOAD_LOG
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cat - <<EOF >expect
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#S
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want $A
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#E
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EOF
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test_expect_success 'fetch A (new commit : 1 connection)' '
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rm -f $U
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(
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cd cloned &&
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GIT_DEBUG_SEND_PACK=3 git fetch 3>../$U &&
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test $A = $(git rev-parse --verify origin/master)
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) &&
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test -s $U &&
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cut -d" " -f1,2 $U >actual &&
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git diff expect actual
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'
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test_expect_success "create tag T on A, create C on branch cat" '
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git tag -a -m tag1 tag1 $A &&
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T=$(git rev-parse --verify tag1) &&
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git checkout -b cat &&
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echo C >file &&
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git add file &&
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git commit -m C &&
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C=$(git rev-parse --verify HEAD) &&
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git checkout master
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'
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cat - <<EOF >expect
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#S
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want $C
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want $T
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#E
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EOF
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test_expect_success 'fetch C, T (new branch, tag : 1 connection)' '
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rm -f $U
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(
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cd cloned &&
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GIT_DEBUG_SEND_PACK=3 git fetch 3>../$U &&
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test $C = $(git rev-parse --verify origin/cat) &&
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test $T = $(git rev-parse --verify tag1) &&
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test $A = $(git rev-parse --verify tag1^0)
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) &&
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test -s $U &&
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cut -d" " -f1,2 $U >actual &&
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git diff expect actual
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'
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test_expect_success "create commits O, B, tag S on B" '
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test_tick &&
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echo O >file &&
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git add file &&
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git commit -m O &&
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test_tick &&
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echo B >file &&
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git add file &&
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git commit -m B &&
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B=$(git rev-parse --verify HEAD) &&
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git tag -a -m tag2 tag2 $B &&
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S=$(git rev-parse --verify tag2)
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'
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cat - <<EOF >expect
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#S
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want $B
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want $S
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#E
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EOF
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test_expect_success 'fetch B, S (commit and tag : 1 connection)' '
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rm -f $U
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(
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cd cloned &&
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GIT_DEBUG_SEND_PACK=3 git fetch 3>../$U &&
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test $B = $(git rev-parse --verify origin/master) &&
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test $B = $(git rev-parse --verify tag2^0) &&
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test $S = $(git rev-parse --verify tag2)
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) &&
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test -s $U &&
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cut -d" " -f1,2 $U >actual &&
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git diff expect actual
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'
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cat - <<EOF >expect
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#S
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want $B
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want $S
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#E
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EOF
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test_expect_success 'new clone fetch master and tags' '
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git branch -D cat
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rm -f $U
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(
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mkdir clone2 &&
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cd clone2 &&
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git init &&
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git remote add origin .. &&
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GIT_DEBUG_SEND_PACK=3 git fetch 3>../$U &&
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test $B = $(git rev-parse --verify origin/master) &&
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test $S = $(git rev-parse --verify tag2) &&
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test $B = $(git rev-parse --verify tag2^0) &&
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test $T = $(git rev-parse --verify tag1) &&
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test $A = $(git rev-parse --verify tag1^0)
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) &&
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test -s $U &&
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cut -d" " -f1,2 $U >actual &&
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git diff expect actual
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'
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test_done
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