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#!/bin/sh
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test_description='git p4 fetching changes in multiple blocks'
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. ./lib-git-p4.sh
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test_expect_success 'start p4d' '
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start_p4d
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'
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create_restricted_group() {
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p4 group -i <<-EOF
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Group: restricted
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MaxResults: 7
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MaxScanRows: 40
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Users: author
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EOF
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}
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test_expect_success 'Create group with limited maxrows' '
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create_restricted_group
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'
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test_expect_success 'Create a repo with many changes' '
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(
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client_view "//depot/included/... //client/included/..." \
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"//depot/excluded/... //client/excluded/..." &&
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mkdir -p "$cli/included" "$cli/excluded" &&
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cd "$cli/included" &&
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>file.txt &&
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p4 add file.txt &&
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p4 submit -d "Add file.txt" &&
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for i in $(test_seq 0 5)
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do
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>outer$i.txt &&
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p4 add outer$i.txt &&
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p4 submit -d "Adding outer$i.txt" &&
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for j in $(test_seq 0 5)
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do
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p4 edit file.txt &&
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echo $i$j >file.txt &&
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p4 submit -d "Commit $i$j" || exit
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done || exit
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done
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)
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'
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test_expect_success 'Default user cannot fetch changes' '
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! p4 changes -m 1 //depot/...
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'
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test_expect_success 'Clone the repo' '
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git p4 clone --dest="$git" --changes-block-size=7 --verbose //depot/included@all
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'
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test_expect_success 'All files are present' '
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echo file.txt >expected &&
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test_write_lines outer0.txt outer1.txt outer2.txt outer3.txt outer4.txt >>expected &&
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test_write_lines outer5.txt >>expected &&
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ls "$git" >current &&
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test_cmp expected current
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'
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test_expect_success 'file.txt is correct' '
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echo 55 >expected &&
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test_cmp expected "$git/file.txt"
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'
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test_expect_success 'Correct number of commits' '
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(cd "$git" && git log --oneline) >log &&
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wc -l log &&
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test_line_count = 43 log
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'
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test_expect_success 'Previous version of file.txt is correct' '
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(cd "$git" && git checkout HEAD^^) &&
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echo 53 >expected &&
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test_cmp expected "$git/file.txt"
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'
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# Test git-p4 sync, with some files outside the client specification.
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p4_add_file() {
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(cd "$cli" &&
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>$1 &&
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p4 add $1 &&
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p4 submit -d "Added file $1" $1
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)
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}
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test_expect_success 'Add some more files' '
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for i in $(test_seq 0 10)
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do
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p4_add_file "included/x$i" &&
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p4_add_file "excluded/x$i"
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done &&
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for i in $(test_seq 0 10)
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do
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p4_add_file "excluded/y$i"
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done
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'
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# This should pick up the 10 new files in "included", but not be confused
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# by the additional files in "excluded"
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test_expect_success 'Syncing files' '
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(
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cd "$git" &&
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git p4 sync --changes-block-size=7 &&
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git checkout p4/master &&
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ls -l x* > log &&
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test_line_count = 11 log
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)
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'
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# Handling of multiple depot paths:
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# git p4 clone //depot/pathA //depot/pathB
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#
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test_expect_success 'Create a repo with multiple depot paths' '
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client_view "//depot/pathA/... //client/pathA/..." \
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"//depot/pathB/... //client/pathB/..." &&
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mkdir -p "$cli/pathA" "$cli/pathB" &&
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for p in pathA pathB
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do
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for i in $(test_seq 1 10)
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do
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p4_add_file "$p/file$p$i"
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done
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done
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'
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test_expect_success 'Clone repo with multiple depot paths' '
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git-p4: auto-size the block
git-p4 originally would fetch changes in one query. On large repos this
could fail because of the limits that Perforce imposes on the number of
items returned and the number of queries in the database.
To fix this, git-p4 learned to query changes in blocks of 512 changes,
However, this can be very slow - if you have a few million changes,
with each chunk taking about a second, it can be an hour or so.
Although it's possible to tune this value manually with the
"--changes-block-size" option, it's far from obvious to ordinary users
that this is what needs doing.
This change alters the block size dynamically by looking for the
specific error messages returned from the Perforce server, and reducing
the block size if the error is seen, either to the limit reported by the
server, or to half the current block size.
That means we can start out with a very large block size, and then let
it automatically drop down to a value that works without error, while
still failing correctly if some other error occurs.
Signed-off-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
6 years ago
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test_when_finished cleanup_git &&
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(
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cd "$git" &&
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git p4 clone --changes-block-size=4 //depot/pathA@all //depot/pathB@all \
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--destination=dest &&
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ls -1 dest >log &&
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test_line_count = 20 log
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)
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'
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git-p4: auto-size the block
git-p4 originally would fetch changes in one query. On large repos this
could fail because of the limits that Perforce imposes on the number of
items returned and the number of queries in the database.
To fix this, git-p4 learned to query changes in blocks of 512 changes,
However, this can be very slow - if you have a few million changes,
with each chunk taking about a second, it can be an hour or so.
Although it's possible to tune this value manually with the
"--changes-block-size" option, it's far from obvious to ordinary users
that this is what needs doing.
This change alters the block size dynamically by looking for the
specific error messages returned from the Perforce server, and reducing
the block size if the error is seen, either to the limit reported by the
server, or to half the current block size.
That means we can start out with a very large block size, and then let
it automatically drop down to a value that works without error, while
still failing correctly if some other error occurs.
Signed-off-by: Luke Diamand <luke@diamand.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
6 years ago
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test_expect_success 'Clone repo with self-sizing block size' '
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test_when_finished cleanup_git &&
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git p4 clone --changes-block-size=1000000 //depot@all --destination="$git" &&
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git -C "$git" log --oneline >log &&
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test_line_count \> 10 log
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'
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test_expect_success 'kill p4d' '
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kill_p4d
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'
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test_done
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