7f0cc04f2c
When a user specifies a URI via 'git clone --bundle-uri', that URI may be a bundle list that advertises a 'bundle.heuristic' value. In that case, the Git client stores a 'fetch.bundleURI' config value storing that URI. Teach 'git fetch' to check for this config value and download bundles from that URI before fetching from the Git remote(s). Likely, the bundle provider has configured a heuristic (such as "creationToken") that will allow the Git client to download only a portion of the bundles before continuing the fetch. Since this URI is completely independent of the remote server, we want to be sure that we connect to the bundle URI before creating a connection to the Git remote. We do not want to hold a stateful connection for too long if we can avoid it. To test that this works correctly, extend the previous tests that set 'fetch.bundleURI' to do follow-up fetches. The bundle list is updated incrementally at each phase to demonstrate that the heuristic avoids downloading older bundles. This includes the middle fetch downloading the objects in bundle-3.bundle from the Git remote, and therefore not needing that bundle in the third fetch. Signed-off-by: Derrick Stolee <derrickstolee@github.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
598 lines
15 KiB
Bash
Executable File
598 lines
15 KiB
Bash
Executable File
#!/bin/sh
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test_description='test fetching bundles with --bundle-uri'
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. ./test-lib.sh
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test_expect_success 'fail to clone from non-existent file' '
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test_when_finished rm -rf test &&
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git clone --bundle-uri="$(pwd)/does-not-exist" . test 2>err &&
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grep "failed to download bundle from URI" err
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'
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test_expect_success 'fail to clone from non-bundle file' '
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test_when_finished rm -rf test &&
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echo bogus >bogus &&
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git clone --bundle-uri="$(pwd)/bogus" . test 2>err &&
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grep "is not a bundle" err
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'
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test_expect_success 'create bundle' '
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git init clone-from &&
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git -C clone-from checkout -b topic &&
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test_commit -C clone-from A &&
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test_commit -C clone-from B &&
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git -C clone-from bundle create B.bundle topic
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'
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test_expect_success 'clone with path bundle' '
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git clone --bundle-uri="clone-from/B.bundle" \
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clone-from clone-path &&
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git -C clone-path rev-parse refs/bundles/topic >actual &&
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git -C clone-from rev-parse topic >expect &&
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test_cmp expect actual
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'
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test_expect_success 'clone with file:// bundle' '
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git clone --bundle-uri="file://$(pwd)/clone-from/B.bundle" \
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clone-from clone-file &&
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git -C clone-file rev-parse refs/bundles/topic >actual &&
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git -C clone-from rev-parse topic >expect &&
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test_cmp expect actual
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'
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# To get interesting tests for bundle lists, we need to construct a
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# somewhat-interesting commit history.
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#
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# ---------------- bundle-4
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#
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# 4
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# / \
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# ----|---|------- bundle-3
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# | |
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# | 3
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# | |
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# ----|---|------- bundle-2
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# | |
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# 2 |
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# | |
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# ----|---|------- bundle-1
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# \ /
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# 1
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# |
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# (previous commits)
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test_expect_success 'construct incremental bundle list' '
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(
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cd clone-from &&
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git checkout -b base &&
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test_commit 1 &&
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git checkout -b left &&
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test_commit 2 &&
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git checkout -b right base &&
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test_commit 3 &&
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git checkout -b merge left &&
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git merge right -m "4" &&
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git bundle create bundle-1.bundle base &&
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git bundle create bundle-2.bundle base..left &&
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git bundle create bundle-3.bundle base..right &&
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git bundle create bundle-4.bundle merge --not left right
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)
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'
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test_expect_success 'clone bundle list (file, no heuristic)' '
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cat >bundle-list <<-EOF &&
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[bundle]
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version = 1
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mode = all
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[bundle "bundle-1"]
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uri = file://$(pwd)/clone-from/bundle-1.bundle
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[bundle "bundle-2"]
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uri = file://$(pwd)/clone-from/bundle-2.bundle
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[bundle "bundle-3"]
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uri = file://$(pwd)/clone-from/bundle-3.bundle
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[bundle "bundle-4"]
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uri = file://$(pwd)/clone-from/bundle-4.bundle
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EOF
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git clone --bundle-uri="file://$(pwd)/bundle-list" \
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clone-from clone-list-file 2>err &&
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! grep "Repository lacks these prerequisite commits" err &&
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git -C clone-from for-each-ref --format="%(objectname)" >oids &&
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git -C clone-list-file cat-file --batch-check <oids &&
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git -C clone-list-file for-each-ref --format="%(refname)" >refs &&
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grep "refs/bundles/" refs >actual &&
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cat >expect <<-\EOF &&
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refs/bundles/base
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refs/bundles/left
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refs/bundles/merge
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refs/bundles/right
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EOF
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test_cmp expect actual
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'
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test_expect_success 'clone bundle list (file, all mode, some failures)' '
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cat >bundle-list <<-EOF &&
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[bundle]
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version = 1
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mode = all
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# Does not exist. Should be skipped.
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[bundle "bundle-0"]
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uri = file://$(pwd)/clone-from/bundle-0.bundle
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[bundle "bundle-1"]
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uri = file://$(pwd)/clone-from/bundle-1.bundle
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[bundle "bundle-2"]
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uri = file://$(pwd)/clone-from/bundle-2.bundle
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# No bundle-3 means bundle-4 will not apply.
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[bundle "bundle-4"]
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uri = file://$(pwd)/clone-from/bundle-4.bundle
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# Does not exist. Should be skipped.
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[bundle "bundle-5"]
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uri = file://$(pwd)/clone-from/bundle-5.bundle
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EOF
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GIT_TRACE2_PERF=1 \
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git clone --bundle-uri="file://$(pwd)/bundle-list" \
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clone-from clone-all-some 2>err &&
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! grep "Repository lacks these prerequisite commits" err &&
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! grep "fatal" err &&
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grep "warning: failed to download bundle from URI" err &&
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git -C clone-from for-each-ref --format="%(objectname)" >oids &&
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git -C clone-all-some cat-file --batch-check <oids &&
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git -C clone-all-some for-each-ref --format="%(refname)" >refs &&
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grep "refs/bundles/" refs >actual &&
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cat >expect <<-\EOF &&
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refs/bundles/base
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refs/bundles/left
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EOF
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test_cmp expect actual
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'
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test_expect_success 'clone bundle list (file, all mode, all failures)' '
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cat >bundle-list <<-EOF &&
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[bundle]
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version = 1
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mode = all
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# Does not exist. Should be skipped.
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[bundle "bundle-0"]
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uri = file://$(pwd)/clone-from/bundle-0.bundle
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# Does not exist. Should be skipped.
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[bundle "bundle-5"]
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uri = file://$(pwd)/clone-from/bundle-5.bundle
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EOF
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git clone --bundle-uri="file://$(pwd)/bundle-list" \
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clone-from clone-all-fail 2>err &&
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! grep "Repository lacks these prerequisite commits" err &&
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! grep "fatal" err &&
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grep "warning: failed to download bundle from URI" err &&
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git -C clone-from for-each-ref --format="%(objectname)" >oids &&
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git -C clone-all-fail cat-file --batch-check <oids &&
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git -C clone-all-fail for-each-ref --format="%(refname)" >refs &&
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! grep "refs/bundles/" refs
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'
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test_expect_success 'clone bundle list (file, any mode)' '
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cat >bundle-list <<-EOF &&
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[bundle]
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version = 1
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mode = any
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# Does not exist. Should be skipped.
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[bundle "bundle-0"]
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uri = file://$(pwd)/clone-from/bundle-0.bundle
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[bundle "bundle-1"]
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uri = file://$(pwd)/clone-from/bundle-1.bundle
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# Does not exist. Should be skipped.
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[bundle "bundle-5"]
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uri = file://$(pwd)/clone-from/bundle-5.bundle
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EOF
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git clone --bundle-uri="file://$(pwd)/bundle-list" \
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clone-from clone-any-file 2>err &&
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! grep "Repository lacks these prerequisite commits" err &&
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git -C clone-from for-each-ref --format="%(objectname)" >oids &&
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git -C clone-any-file cat-file --batch-check <oids &&
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git -C clone-any-file for-each-ref --format="%(refname)" >refs &&
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grep "refs/bundles/" refs >actual &&
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cat >expect <<-\EOF &&
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refs/bundles/base
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EOF
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test_cmp expect actual
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'
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test_expect_success 'clone bundle list (file, any mode, all failures)' '
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cat >bundle-list <<-EOF &&
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[bundle]
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version = 1
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mode = any
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# Does not exist. Should be skipped.
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[bundle "bundle-0"]
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uri = $HTTPD_URL/bundle-0.bundle
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# Does not exist. Should be skipped.
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[bundle "bundle-5"]
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uri = $HTTPD_URL/bundle-5.bundle
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EOF
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git clone --bundle-uri="file://$(pwd)/bundle-list" \
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clone-from clone-any-fail 2>err &&
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! grep "fatal" err &&
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grep "warning: failed to download bundle from URI" err &&
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git -C clone-from for-each-ref --format="%(objectname)" >oids &&
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git -C clone-any-fail cat-file --batch-check <oids &&
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git -C clone-any-fail for-each-ref --format="%(refname)" >refs &&
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! grep "refs/bundles/" refs
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'
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#########################################################################
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# HTTP tests begin here
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. "$TEST_DIRECTORY"/lib-httpd.sh
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start_httpd
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test_expect_success 'fail to fetch from non-existent HTTP URL' '
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test_when_finished rm -rf test &&
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git clone --bundle-uri="$HTTPD_URL/does-not-exist" . test 2>err &&
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grep "failed to download bundle from URI" err
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'
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test_expect_success 'fail to fetch from non-bundle HTTP URL' '
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test_when_finished rm -rf test &&
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echo bogus >"$HTTPD_DOCUMENT_ROOT_PATH/bogus" &&
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git clone --bundle-uri="$HTTPD_URL/bogus" . test 2>err &&
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grep "is not a bundle" err
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'
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test_expect_success 'clone HTTP bundle' '
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cp clone-from/B.bundle "$HTTPD_DOCUMENT_ROOT_PATH/B.bundle" &&
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git clone --no-local --mirror clone-from \
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"$HTTPD_DOCUMENT_ROOT_PATH/fetch.git" &&
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git clone --bundle-uri="$HTTPD_URL/B.bundle" \
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"$HTTPD_URL/smart/fetch.git" clone-http &&
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git -C clone-http rev-parse refs/bundles/topic >actual &&
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git -C clone-from rev-parse topic >expect &&
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test_cmp expect actual &&
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test_config -C clone-http log.excludedecoration refs/bundle/
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'
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test_expect_success 'clone bundle list (HTTP, no heuristic)' '
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test_when_finished rm -f trace*.txt &&
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cp clone-from/bundle-*.bundle "$HTTPD_DOCUMENT_ROOT_PATH/" &&
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cat >"$HTTPD_DOCUMENT_ROOT_PATH/bundle-list" <<-EOF &&
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[bundle]
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version = 1
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mode = all
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[bundle "bundle-1"]
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uri = $HTTPD_URL/bundle-1.bundle
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[bundle "bundle-2"]
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uri = $HTTPD_URL/bundle-2.bundle
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[bundle "bundle-3"]
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uri = $HTTPD_URL/bundle-3.bundle
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[bundle "bundle-4"]
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uri = $HTTPD_URL/bundle-4.bundle
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EOF
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GIT_TRACE2_EVENT="$(pwd)/trace-clone.txt" \
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git clone --bundle-uri="$HTTPD_URL/bundle-list" \
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clone-from clone-list-http 2>err &&
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! grep "Repository lacks these prerequisite commits" err &&
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git -C clone-from for-each-ref --format="%(objectname)" >oids &&
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git -C clone-list-http cat-file --batch-check <oids &&
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cat >expect <<-EOF &&
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$HTTPD_URL/bundle-1.bundle
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$HTTPD_URL/bundle-2.bundle
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$HTTPD_URL/bundle-3.bundle
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$HTTPD_URL/bundle-4.bundle
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$HTTPD_URL/bundle-list
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EOF
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# Sort the list, since the order is not well-defined
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# without a heuristic.
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test_remote_https_urls <trace-clone.txt | sort >actual &&
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test_cmp expect actual
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'
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test_expect_success 'clone bundle list (HTTP, any mode)' '
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cp clone-from/bundle-*.bundle "$HTTPD_DOCUMENT_ROOT_PATH/" &&
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cat >"$HTTPD_DOCUMENT_ROOT_PATH/bundle-list" <<-EOF &&
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[bundle]
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version = 1
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mode = any
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# Does not exist. Should be skipped.
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[bundle "bundle-0"]
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uri = $HTTPD_URL/bundle-0.bundle
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[bundle "bundle-1"]
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uri = $HTTPD_URL/bundle-1.bundle
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# Does not exist. Should be skipped.
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[bundle "bundle-5"]
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uri = $HTTPD_URL/bundle-5.bundle
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EOF
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git clone --bundle-uri="$HTTPD_URL/bundle-list" \
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clone-from clone-any-http 2>err &&
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! grep "fatal" err &&
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grep "warning: failed to download bundle from URI" err &&
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git -C clone-from for-each-ref --format="%(objectname)" >oids &&
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git -C clone-any-http cat-file --batch-check <oids &&
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git -C clone-list-file for-each-ref --format="%(refname)" >refs &&
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grep "refs/bundles/" refs >actual &&
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cat >expect <<-\EOF &&
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refs/bundles/base
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refs/bundles/left
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refs/bundles/merge
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refs/bundles/right
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EOF
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test_cmp expect actual
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'
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test_expect_success 'clone bundle list (http, creationToken)' '
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test_when_finished rm -f trace*.txt &&
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cp clone-from/bundle-*.bundle "$HTTPD_DOCUMENT_ROOT_PATH/" &&
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cat >"$HTTPD_DOCUMENT_ROOT_PATH/bundle-list" <<-EOF &&
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[bundle]
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version = 1
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mode = all
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heuristic = creationToken
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[bundle "bundle-1"]
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uri = bundle-1.bundle
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creationToken = 1
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[bundle "bundle-2"]
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uri = bundle-2.bundle
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creationToken = 2
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[bundle "bundle-3"]
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uri = bundle-3.bundle
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creationToken = 3
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[bundle "bundle-4"]
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uri = bundle-4.bundle
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creationToken = 4
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EOF
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GIT_TRACE2_EVENT="$(pwd)/trace-clone.txt" git \
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clone --bundle-uri="$HTTPD_URL/bundle-list" \
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"$HTTPD_URL/smart/fetch.git" clone-list-http-2 &&
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git -C clone-from for-each-ref --format="%(objectname)" >oids &&
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git -C clone-list-http-2 cat-file --batch-check <oids &&
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cat >expect <<-EOF &&
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$HTTPD_URL/bundle-list
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$HTTPD_URL/bundle-4.bundle
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$HTTPD_URL/bundle-3.bundle
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$HTTPD_URL/bundle-2.bundle
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$HTTPD_URL/bundle-1.bundle
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EOF
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test_remote_https_urls <trace-clone.txt >actual &&
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test_cmp expect actual
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'
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test_expect_success 'clone incomplete bundle list (http, creationToken)' '
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test_when_finished rm -f trace*.txt &&
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cp clone-from/bundle-*.bundle "$HTTPD_DOCUMENT_ROOT_PATH/" &&
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cat >"$HTTPD_DOCUMENT_ROOT_PATH/bundle-list" <<-EOF &&
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[bundle]
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version = 1
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mode = all
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heuristic = creationToken
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[bundle "bundle-1"]
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uri = bundle-1.bundle
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creationToken = 1
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EOF
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GIT_TRACE2_EVENT=$(pwd)/trace-clone.txt \
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git clone --bundle-uri="$HTTPD_URL/bundle-list" \
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--single-branch --branch=base --no-tags \
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"$HTTPD_URL/smart/fetch.git" clone-token-http &&
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test_cmp_config -C clone-token-http "$HTTPD_URL/bundle-list" fetch.bundleuri &&
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cat >expect <<-EOF &&
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$HTTPD_URL/bundle-list
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$HTTPD_URL/bundle-1.bundle
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EOF
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test_remote_https_urls <trace-clone.txt >actual &&
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test_cmp expect actual &&
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# We now have only one bundle ref.
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git -C clone-token-http for-each-ref --format="%(refname)" "refs/bundles/*" >refs &&
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cat >expect <<-\EOF &&
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refs/bundles/base
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EOF
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test_cmp expect refs &&
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# Add remaining bundles, exercising the "deepening" strategy
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# for downloading via the creationToken heurisitc.
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cat >>"$HTTPD_DOCUMENT_ROOT_PATH/bundle-list" <<-EOF &&
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[bundle "bundle-2"]
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uri = bundle-2.bundle
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creationToken = 2
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[bundle "bundle-3"]
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uri = bundle-3.bundle
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creationToken = 3
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[bundle "bundle-4"]
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uri = bundle-4.bundle
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creationToken = 4
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EOF
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GIT_TRACE2_EVENT="$(pwd)/trace1.txt" \
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git -C clone-token-http fetch origin --no-tags \
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refs/heads/merge:refs/heads/merge &&
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cat >expect <<-EOF &&
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$HTTPD_URL/bundle-list
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$HTTPD_URL/bundle-4.bundle
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$HTTPD_URL/bundle-3.bundle
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$HTTPD_URL/bundle-2.bundle
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EOF
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test_remote_https_urls <trace1.txt >actual &&
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test_cmp expect actual &&
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# We now have all bundle refs.
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git -C clone-token-http for-each-ref --format="%(refname)" "refs/bundles/*" >refs &&
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cat >expect <<-\EOF &&
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refs/bundles/base
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refs/bundles/left
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refs/bundles/merge
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refs/bundles/right
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EOF
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test_cmp expect refs
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'
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test_expect_success 'http clone with bundle.heuristic creates fetch.bundleURI' '
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test_when_finished rm -rf fetch-http-4 trace*.txt &&
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cat >"$HTTPD_DOCUMENT_ROOT_PATH/bundle-list" <<-EOF &&
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[bundle]
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version = 1
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mode = all
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heuristic = creationToken
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[bundle "bundle-1"]
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uri = bundle-1.bundle
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creationToken = 1
|
|
EOF
|
|
|
|
GIT_TRACE2_EVENT="$(pwd)/trace-clone.txt" \
|
|
git clone --single-branch --branch=base \
|
|
--bundle-uri="$HTTPD_URL/bundle-list" \
|
|
"$HTTPD_URL/smart/fetch.git" fetch-http-4 &&
|
|
|
|
test_cmp_config -C fetch-http-4 "$HTTPD_URL/bundle-list" fetch.bundleuri &&
|
|
|
|
cat >expect <<-EOF &&
|
|
$HTTPD_URL/bundle-list
|
|
$HTTPD_URL/bundle-1.bundle
|
|
EOF
|
|
|
|
test_remote_https_urls <trace-clone.txt >actual &&
|
|
test_cmp expect actual &&
|
|
|
|
# only received base ref from bundle-1
|
|
git -C fetch-http-4 for-each-ref --format="%(refname)" "refs/bundles/*" >refs &&
|
|
cat >expect <<-\EOF &&
|
|
refs/bundles/base
|
|
EOF
|
|
test_cmp expect refs &&
|
|
|
|
cat >>"$HTTPD_DOCUMENT_ROOT_PATH/bundle-list" <<-EOF &&
|
|
[bundle "bundle-2"]
|
|
uri = bundle-2.bundle
|
|
creationToken = 2
|
|
EOF
|
|
|
|
# Fetch the objects for bundle-2 _and_ bundle-3.
|
|
GIT_TRACE2_EVENT="$(pwd)/trace1.txt" \
|
|
git -C fetch-http-4 fetch origin --no-tags \
|
|
refs/heads/left:refs/heads/left \
|
|
refs/heads/right:refs/heads/right &&
|
|
|
|
cat >expect <<-EOF &&
|
|
$HTTPD_URL/bundle-list
|
|
$HTTPD_URL/bundle-2.bundle
|
|
EOF
|
|
|
|
test_remote_https_urls <trace1.txt >actual &&
|
|
test_cmp expect actual &&
|
|
|
|
# received left from bundle-2
|
|
git -C fetch-http-4 for-each-ref --format="%(refname)" "refs/bundles/*" >refs &&
|
|
cat >expect <<-\EOF &&
|
|
refs/bundles/base
|
|
refs/bundles/left
|
|
EOF
|
|
test_cmp expect refs &&
|
|
|
|
cat >>"$HTTPD_DOCUMENT_ROOT_PATH/bundle-list" <<-EOF &&
|
|
[bundle "bundle-3"]
|
|
uri = bundle-3.bundle
|
|
creationToken = 3
|
|
|
|
[bundle "bundle-4"]
|
|
uri = bundle-4.bundle
|
|
creationToken = 4
|
|
EOF
|
|
|
|
# This fetch should skip bundle-3.bundle, since its objects are
|
|
# already local (we have the requisite commits for bundle-4.bundle).
|
|
GIT_TRACE2_EVENT="$(pwd)/trace2.txt" \
|
|
git -C fetch-http-4 fetch origin --no-tags \
|
|
refs/heads/merge:refs/heads/merge &&
|
|
|
|
cat >expect <<-EOF &&
|
|
$HTTPD_URL/bundle-list
|
|
$HTTPD_URL/bundle-4.bundle
|
|
EOF
|
|
|
|
test_remote_https_urls <trace2.txt >actual &&
|
|
test_cmp expect actual &&
|
|
|
|
# received merge ref from bundle-4, but right is missing
|
|
# because we did not download bundle-3.
|
|
git -C fetch-http-4 for-each-ref --format="%(refname)" "refs/bundles/*" >refs &&
|
|
|
|
cat >expect <<-\EOF &&
|
|
refs/bundles/base
|
|
refs/bundles/left
|
|
refs/bundles/merge
|
|
EOF
|
|
test_cmp expect refs
|
|
'
|
|
|
|
# Do not add tests here unless they use the HTTP server, as they will
|
|
# not run unless the HTTP dependencies exist.
|
|
|
|
test_done
|