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71406ed4d6
One test in t5400 examines the packet exchange between git-push and git-receive-pack. The latter inherits the GIT_TRACE_PACKET environment variable, so that both processes dump trace data into the same file concurrently. This should not be a problem because the trace file is opened with O_APPEND. On Windows, however, O_APPEND is not atomic as it should be: it is emulated as lseek(SEEK_END) followed by write(). For this reason, the test is unreliable: it can happen that one process overwrites a line that was just written by the other process. As a consequence, the test sometimes does not find one or another line that is expected (and it is also successful occasionally). The test case is actually only interested in the output of git-push. To ensure that only git-push writes to the trace file, override the receive-pack command such that it does not even open the trace file. Reported-by: Johannes Sixt <j6t@kdbg.org> Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
300 lines
7.9 KiB
Bash
Executable file
300 lines
7.9 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2005 Junio C Hamano
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#
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test_description='See why rewinding head breaks send-pack
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'
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. ./test-lib.sh
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cnt=64
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test_expect_success setup '
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test_tick &&
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mkdir mozart mozart/is &&
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echo "Commit #0" >mozart/is/pink &&
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git update-index --add mozart/is/pink &&
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tree=$(git write-tree) &&
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commit=$(echo "Commit #0" | git commit-tree $tree) &&
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zero=$commit &&
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parent=$zero &&
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i=0 &&
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while test $i -le $cnt
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do
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i=$(($i+1)) &&
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test_tick &&
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echo "Commit #$i" >mozart/is/pink &&
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git update-index --add mozart/is/pink &&
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tree=$(git write-tree) &&
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commit=$(echo "Commit #$i" | git commit-tree $tree -p $parent) &&
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git update-ref refs/tags/commit$i $commit &&
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parent=$commit || return 1
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done &&
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git update-ref HEAD "$commit" &&
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git clone ./. victim &&
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( cd victim && git config receive.denyCurrentBranch warn && git log ) &&
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git update-ref HEAD "$zero" &&
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parent=$zero &&
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i=0 &&
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while test $i -le $cnt
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do
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i=$(($i+1)) &&
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test_tick &&
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echo "Rebase #$i" >mozart/is/pink &&
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git update-index --add mozart/is/pink &&
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tree=$(git write-tree) &&
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commit=$(echo "Rebase #$i" | git commit-tree $tree -p $parent) &&
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git update-ref refs/tags/rebase$i $commit &&
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parent=$commit || return 1
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done &&
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git update-ref HEAD "$commit" &&
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echo Rebase &&
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git log'
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test_expect_success 'pack the source repository' '
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git repack -a -d &&
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git prune
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'
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test_expect_success 'pack the destination repository' '
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(
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cd victim &&
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git repack -a -d &&
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git prune
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)
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'
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test_expect_success 'refuse pushing rewound head without --force' '
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pushed_head=$(git rev-parse --verify master) &&
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victim_orig=$(cd victim && git rev-parse --verify master) &&
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test_must_fail git send-pack ./victim master &&
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victim_head=$(cd victim && git rev-parse --verify master) &&
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test "$victim_head" = "$victim_orig" &&
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# this should update
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git send-pack --force ./victim master &&
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victim_head=$(cd victim && git rev-parse --verify master) &&
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test "$victim_head" = "$pushed_head"
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'
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test_expect_success 'push can be used to delete a ref' '
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( cd victim && git branch extra master ) &&
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git send-pack ./victim :extra master &&
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( cd victim &&
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test_must_fail git rev-parse --verify extra )
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'
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test_expect_success 'refuse deleting push with denyDeletes' '
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(
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cd victim &&
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( git branch -D extra || : ) &&
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git config receive.denyDeletes true &&
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git branch extra master
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) &&
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test_must_fail git send-pack ./victim :extra master
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'
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test_expect_success 'cannot override denyDeletes with git -c send-pack' '
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(
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cd victim &&
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test_might_fail git branch -D extra &&
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git config receive.denyDeletes true &&
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git branch extra master
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) &&
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test_must_fail git -c receive.denyDeletes=false \
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send-pack ./victim :extra master
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'
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test_expect_success 'override denyDeletes with git -c receive-pack' '
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(
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cd victim &&
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test_might_fail git branch -D extra &&
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git config receive.denyDeletes true &&
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git branch extra master
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) &&
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git send-pack \
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--receive-pack="git -c receive.denyDeletes=false receive-pack" \
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./victim :extra master
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'
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test_expect_success 'denyNonFastforwards trumps --force' '
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(
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cd victim &&
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( git branch -D extra || : ) &&
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git config receive.denyNonFastforwards true
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) &&
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victim_orig=$(cd victim && git rev-parse --verify master) &&
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test_must_fail git send-pack --force ./victim master^:master &&
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victim_head=$(cd victim && git rev-parse --verify master) &&
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test "$victim_orig" = "$victim_head"
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'
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test_expect_success 'send-pack --all sends all branches' '
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# make sure we have at least 2 branches with different
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# values, just to be thorough
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git branch other-branch HEAD^ &&
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git init --bare all.git &&
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git send-pack --all all.git &&
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git for-each-ref refs/heads >expect &&
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git -C all.git for-each-ref refs/heads >actual &&
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test_cmp expect actual
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'
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test_expect_success 'push --all excludes remote-tracking hierarchy' '
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mkdir parent &&
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(
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cd parent &&
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git init && : >file && git add file && git commit -m add
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) &&
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git clone parent child &&
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(
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cd child && git push --all
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) &&
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(
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cd parent &&
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test -z "$(git for-each-ref refs/remotes/origin)"
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)
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'
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test_expect_success 'receive-pack runs auto-gc in remote repo' '
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rm -rf parent child &&
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git init parent &&
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(
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# Setup a repo with 2 packs
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cd parent &&
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echo "Some text" >file.txt &&
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git add . &&
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git commit -m "Initial commit" &&
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git repack -adl &&
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echo "Some more text" >>file.txt &&
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git commit -a -m "Second commit" &&
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git repack
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) &&
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cp -R parent child &&
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(
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# Set the child to auto-pack if more than one pack exists
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cd child &&
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git config gc.autopacklimit 1 &&
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git config gc.autodetach false &&
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git branch test_auto_gc &&
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# And create a file that follows the temporary object naming
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# convention for the auto-gc to remove
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: >.git/objects/tmp_test_object &&
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test-chmtime =-1209601 .git/objects/tmp_test_object
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) &&
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(
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cd parent &&
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echo "Even more text" >>file.txt &&
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git commit -a -m "Third commit" &&
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git send-pack ../child HEAD:refs/heads/test_auto_gc
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) &&
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test ! -e child/.git/objects/tmp_test_object
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'
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rewound_push_setup() {
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rm -rf parent child &&
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mkdir parent &&
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(
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cd parent &&
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git init &&
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echo one >file && git add file && git commit -m one &&
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git config receive.denyCurrentBranch warn &&
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echo two >file && git commit -a -m two
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) &&
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git clone parent child &&
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(
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cd child && git reset --hard HEAD^
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)
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}
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test_expect_success 'pushing explicit refspecs respects forcing' '
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rewound_push_setup &&
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parent_orig=$(cd parent && git rev-parse --verify master) &&
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(
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cd child &&
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test_must_fail git send-pack ../parent \
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refs/heads/master:refs/heads/master
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) &&
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parent_head=$(cd parent && git rev-parse --verify master) &&
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test "$parent_orig" = "$parent_head" &&
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(
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cd child &&
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git send-pack ../parent \
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+refs/heads/master:refs/heads/master
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) &&
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parent_head=$(cd parent && git rev-parse --verify master) &&
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child_head=$(cd child && git rev-parse --verify master) &&
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test "$parent_head" = "$child_head"
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'
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test_expect_success 'pushing wildcard refspecs respects forcing' '
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rewound_push_setup &&
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parent_orig=$(cd parent && git rev-parse --verify master) &&
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(
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cd child &&
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test_must_fail git send-pack ../parent \
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"refs/heads/*:refs/heads/*"
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) &&
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parent_head=$(cd parent && git rev-parse --verify master) &&
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test "$parent_orig" = "$parent_head" &&
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(
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cd child &&
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git send-pack ../parent \
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"+refs/heads/*:refs/heads/*"
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) &&
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parent_head=$(cd parent && git rev-parse --verify master) &&
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child_head=$(cd child && git rev-parse --verify master) &&
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test "$parent_head" = "$child_head"
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'
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test_expect_success 'deny pushing to delete current branch' '
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rewound_push_setup &&
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(
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cd child &&
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test_must_fail git send-pack ../parent :refs/heads/master 2>errs
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)
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'
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extract_ref_advertisement () {
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perl -lne '
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# \\ is there to skip capabilities after \0
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/push< ([^\\]+)/ or next;
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exit 0 if $1 eq "0000";
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print $1;
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'
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}
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test_expect_success 'receive-pack de-dupes .have lines' '
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git init shared &&
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git -C shared commit --allow-empty -m both &&
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git clone -s shared fork &&
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(
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cd shared &&
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git checkout -b only-shared &&
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git commit --allow-empty -m only-shared &&
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git update-ref refs/heads/foo HEAD
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) &&
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# Notable things in this expectation:
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# - local refs are not de-duped
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# - .have does not duplicate locals
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# - .have does not duplicate itself
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local=$(git -C fork rev-parse HEAD) &&
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shared=$(git -C shared rev-parse only-shared) &&
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cat >expect <<-EOF &&
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$local refs/heads/master
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$local refs/remotes/origin/HEAD
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$local refs/remotes/origin/master
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$shared .have
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EOF
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GIT_TRACE_PACKET=$(pwd)/trace \
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git push \
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--receive-pack="unset GIT_TRACE_PACKET; git-receive-pack" \
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fork HEAD:foo &&
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extract_ref_advertisement <trace >refs &&
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test_cmp expect refs
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'
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test_done
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