786b150c8d
When `git clone` is asked to dissociate the repository from the reference repository whose objects were used, it is quite possible that the pack files need to be repacked. In that case, the pack files need to be deleted that were originally hard-links to the reference repository's pack files. On platforms where a file cannot be deleted if another process still holds a handle on it, we therefore need to take pains to release all pack files and indexes before dissociating. This fixes https://github.com/git-for-windows/git/issues/446 The test case to demonstrate the breakage technically does not need to be run on Linux or MacOSX. It won't hurt, either, though. Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
240 lines
5.2 KiB
Bash
Executable File
240 lines
5.2 KiB
Bash
Executable File
#!/bin/sh
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#
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# Copyright (C) 2006 Martin Waitz <tali@admingilde.org>
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#
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test_description='test clone --reference'
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. ./test-lib.sh
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base_dir=`pwd`
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U=$base_dir/UPLOAD_LOG
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test_expect_success 'preparing first repository' \
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'test_create_repo A && cd A &&
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echo first > file1 &&
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git add file1 &&
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git commit -m initial'
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cd "$base_dir"
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test_expect_success 'preparing second repository' \
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'git clone A B && cd B &&
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echo second > file2 &&
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git add file2 &&
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git commit -m addition &&
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git repack -a -d &&
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git prune'
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cd "$base_dir"
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test_expect_success 'cloning with reference (-l -s)' \
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'git clone -l -s --reference B A C'
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cd "$base_dir"
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test_expect_success 'existence of info/alternates' \
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'test_line_count = 2 C/.git/objects/info/alternates'
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cd "$base_dir"
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test_expect_success 'pulling from reference' \
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'cd C &&
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git pull ../B master'
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cd "$base_dir"
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test_expect_success 'that reference gets used' \
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'cd C &&
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echo "0 objects, 0 kilobytes" > expected &&
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git count-objects > current &&
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test_cmp expected current'
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cd "$base_dir"
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rm -f "$U.D"
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test_expect_success 'cloning with reference (no -l -s)' '
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GIT_TRACE_PACKET=$U.D git clone --reference B "file://$(pwd)/A" D
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'
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test_expect_success 'fetched no objects' '
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test -s "$U.D" &&
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! grep " want" "$U.D"
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'
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cd "$base_dir"
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test_expect_success 'existence of info/alternates' \
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'test_line_count = 1 D/.git/objects/info/alternates'
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cd "$base_dir"
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test_expect_success 'pulling from reference' \
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'cd D && git pull ../B master'
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cd "$base_dir"
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test_expect_success 'that reference gets used' \
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'cd D && echo "0 objects, 0 kilobytes" > expected &&
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git count-objects > current &&
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test_cmp expected current'
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cd "$base_dir"
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test_expect_success 'updating origin' \
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'cd A &&
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echo third > file3 &&
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git add file3 &&
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git commit -m update &&
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git repack -a -d &&
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git prune'
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cd "$base_dir"
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test_expect_success 'pulling changes from origin' \
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'cd C &&
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git pull origin'
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cd "$base_dir"
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# the 2 local objects are commit and tree from the merge
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test_expect_success 'that alternate to origin gets used' \
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'cd C &&
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echo "2 objects" > expected &&
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git count-objects | cut -d, -f1 > current &&
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test_cmp expected current'
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cd "$base_dir"
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test_expect_success 'pulling changes from origin' \
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'cd D &&
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git pull origin'
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cd "$base_dir"
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# the 5 local objects are expected; file3 blob, commit in A to add it
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# and its tree, and 2 are our tree and the merge commit.
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test_expect_success 'check objects expected to exist locally' \
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'cd D &&
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echo "5 objects" > expected &&
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git count-objects | cut -d, -f1 > current &&
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test_cmp expected current'
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cd "$base_dir"
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test_expect_success 'preparing alternate repository #1' \
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'test_create_repo F && cd F &&
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echo first > file1 &&
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git add file1 &&
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git commit -m initial'
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cd "$base_dir"
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test_expect_success 'cloning alternate repo #2 and adding changes to repo #1' \
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'git clone F G && cd F &&
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echo second > file2 &&
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git add file2 &&
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git commit -m addition'
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cd "$base_dir"
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test_expect_success 'cloning alternate repo #1, using #2 as reference' \
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'git clone --reference G F H'
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cd "$base_dir"
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test_expect_success 'cloning with reference being subset of source (-l -s)' \
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'git clone -l -s --reference A B E'
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cd "$base_dir"
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test_expect_success 'clone with reference from a tagged repository' '
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(
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cd A && git tag -a -m 'tagged' HEAD
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) &&
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git clone --reference=A A I
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'
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test_expect_success 'prepare branched repository' '
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git clone A J &&
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(
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cd J &&
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git checkout -b other master^ &&
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echo other >otherfile &&
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git add otherfile &&
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git commit -m other &&
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git checkout master
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)
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'
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rm -f "$U.K"
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test_expect_success 'fetch with incomplete alternates' '
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git init K &&
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echo "$base_dir/A/.git/objects" >K/.git/objects/info/alternates &&
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(
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cd K &&
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git remote add J "file://$base_dir/J" &&
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GIT_TRACE_PACKET=$U.K git fetch J
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) &&
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master_object=$(cd A && git for-each-ref --format="%(objectname)" refs/heads/master) &&
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test -s "$U.K" &&
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! grep " want $master_object" "$U.K" &&
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tag_object=$(cd A && git for-each-ref --format="%(objectname)" refs/tags/HEAD) &&
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! grep " want $tag_object" "$U.K"
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'
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test_expect_success 'clone using repo with gitfile as a reference' '
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git clone --separate-git-dir=L A M &&
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git clone --reference=M A N &&
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echo "$base_dir/L/objects" >expected &&
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test_cmp expected "$base_dir/N/.git/objects/info/alternates"
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'
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test_expect_success 'clone using repo pointed at by gitfile as reference' '
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git clone --reference=M/.git A O &&
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echo "$base_dir/L/objects" >expected &&
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test_cmp expected "$base_dir/O/.git/objects/info/alternates"
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'
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test_expect_success 'clone and dissociate from reference' '
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git init P &&
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(
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cd P && test_commit one
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) &&
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git clone P Q &&
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(
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cd Q && test_commit two
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) &&
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git clone --no-local --reference=P Q R &&
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git clone --no-local --reference=P --dissociate Q S &&
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# removing the reference P would corrupt R but not S
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rm -fr P &&
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test_must_fail git -C R fsck &&
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git -C S fsck
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'
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test_expect_success 'clone, dissociate from partial reference and repack' '
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rm -fr P Q R &&
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git init P &&
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(
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cd P &&
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test_commit one &&
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git repack &&
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test_commit two &&
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git repack
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) &&
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git clone --bare P Q &&
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(
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cd P &&
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git checkout -b second &&
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test_commit three &&
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git repack
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) &&
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git clone --bare --dissociate --reference=P Q R &&
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ls R/objects/pack/*.pack >packs.txt &&
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test_line_count = 1 packs.txt
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'
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test_done
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