tests: fix and add lint for non-portable seq
[git/git.git] / t / t5552-skipping-fetch-negotiator.sh
CommitLineData
42cc7485
JT
1#!/bin/sh
2
3test_description='test skipping fetch negotiator'
4. ./test-lib.sh
5
6have_sent () {
7 while test "$#" -ne 0
8 do
9 grep "fetch> have $(git -C client rev-parse $1)" trace
10 if test $? -ne 0
11 then
12 echo "No have $(git -C client rev-parse $1) ($1)"
13 return 1
14 fi
15 shift
16 done
17}
18
19have_not_sent () {
20 while test "$#" -ne 0
21 do
22 grep "fetch> have $(git -C client rev-parse $1)" trace
23 if test $? -eq 0
24 then
25 return 1
26 fi
27 shift
28 done
29}
30
b6e7fc4f
JK
31# trace_fetch <client_dir> <server_dir> [args]
32#
33# Trace the packet output of fetch, but make sure we disable the variable
34# in the child upload-pack, so we don't combine the results in the same file.
35trace_fetch () {
36 client=$1; shift
37 server=$1; shift
38 GIT_TRACE_PACKET="$(pwd)/trace" \
39 git -C "$client" fetch \
40 --upload-pack 'unset GIT_TRACE_PACKET; git-upload-pack' \
41 "$server" "$@"
42}
43
42cc7485
JT
44test_expect_success 'commits with no parents are sent regardless of skip distance' '
45 git init server &&
46 test_commit -C server to_fetch &&
47
48 git init client &&
b2fa7a23 49 for i in $(test_seq 7)
42cc7485
JT
50 do
51 test_commit -C client c$i
52 done &&
53
54 # We send: "c7" (skip 1) "c5" (skip 2) "c2" (skip 4). After that, since
55 # "c1" has no parent, it is still sent as "have" even though it would
56 # normally be skipped.
57 test_config -C client fetch.negotiationalgorithm skipping &&
b6e7fc4f 58 trace_fetch client "$(pwd)/server" &&
42cc7485
JT
59 have_sent c7 c5 c2 c1 &&
60 have_not_sent c6 c4 c3
61'
62
af3a67de
ÆAB
63test_expect_success 'unknown fetch.negotiationAlgorithm values error out' '
64 rm -rf server client trace &&
65 git init server &&
66 test_commit -C server to_fetch &&
67
68 git init client &&
69 test_commit -C client on_client &&
70 git -C client checkout on_client &&
71
72 test_config -C client fetch.negotiationAlgorithm invalid &&
73 test_must_fail git -C client fetch "$(pwd)/server" 2>err &&
74 test_i18ngrep "unknown fetch negotiation algorithm" err &&
75
76 # Explicit "default" value
77 test_config -C client fetch.negotiationAlgorithm default &&
78 git -C client -c fetch.negotiationAlgorithm=default fetch "$(pwd)/server" &&
79
80 # Implementation detail: If there is nothing to fetch, we will not error out
81 test_config -C client fetch.negotiationAlgorithm invalid &&
82 git -C client fetch "$(pwd)/server" 2>err &&
83 test_i18ngrep ! "unknown fetch negotiation algorithm" err
84'
85
42cc7485
JT
86test_expect_success 'when two skips collide, favor the larger one' '
87 rm -rf server client trace &&
88 git init server &&
89 test_commit -C server to_fetch &&
90
91 git init client &&
b2fa7a23 92 for i in $(test_seq 11)
42cc7485
JT
93 do
94 test_commit -C client c$i
95 done &&
96 git -C client checkout c5 &&
97 test_commit -C client c5side &&
98
99 # Before reaching c5, we send "c5side" (skip 1) and "c11" (skip 1) "c9"
100 # (skip 2) "c6" (skip 4). The larger skip (skip 4) takes precedence, so
101 # the next "have" sent will be "c1" (from "c6" skip 4) and not "c4"
102 # (from "c5side" skip 1).
103 test_config -C client fetch.negotiationalgorithm skipping &&
b6e7fc4f 104 trace_fetch client "$(pwd)/server" &&
42cc7485
JT
105 have_sent c5side c11 c9 c6 c1 &&
106 have_not_sent c10 c8 c7 c5 c4 c3 c2
107'
108
109test_expect_success 'use ref advertisement to filter out commits' '
110 rm -rf server client trace &&
111 git init server &&
112 test_commit -C server c1 &&
113 test_commit -C server c2 &&
114 test_commit -C server c3 &&
115 git -C server tag -d c1 c2 c3 &&
116
117 git clone server client &&
118 test_commit -C client c4 &&
119 test_commit -C client c5 &&
120 git -C client checkout c4^^ &&
121 test_commit -C client c2side &&
122
123 git -C server checkout --orphan anotherbranch &&
124 test_commit -C server to_fetch &&
125
126 # The server advertising "c3" (as "refs/heads/master") means that we do
127 # not need to send any ancestors of "c3", but we still need to send "c3"
128 # itself.
129 test_config -C client fetch.negotiationalgorithm skipping &&
b6e7fc4f 130 trace_fetch client origin to_fetch &&
42cc7485
JT
131 have_sent c5 c4^ c2side &&
132 have_not_sent c4 c4^^ c4^^^
133'
134
135test_expect_success 'handle clock skew' '
136 rm -rf server client trace &&
137 git init server &&
138 test_commit -C server to_fetch &&
139
140 git init client &&
141
142 # 2 regular commits
143 test_tick=2000000000 &&
144 test_commit -C client c1 &&
145 test_commit -C client c2 &&
146
147 # 4 old commits
148 test_tick=1000000000 &&
149 git -C client checkout c1 &&
150 test_commit -C client old1 &&
151 test_commit -C client old2 &&
152 test_commit -C client old3 &&
153 test_commit -C client old4 &&
154
155 # "c2" and "c1" are popped first, then "old4" to "old1". "old1" would
156 # normally be skipped, but is treated as a commit without a parent here
157 # and sent, because (due to clock skew) its only parent has already been
158 # popped off the priority queue.
159 test_config -C client fetch.negotiationalgorithm skipping &&
b6e7fc4f 160 trace_fetch client "$(pwd)/server" &&
42cc7485
JT
161 have_sent c2 c1 old4 old2 old1 &&
162 have_not_sent old3
163'
164
165test_expect_success 'do not send "have" with ancestors of commits that server ACKed' '
166 rm -rf server client trace &&
167 git init server &&
168 test_commit -C server to_fetch &&
169
170 git init client &&
b2fa7a23 171 for i in $(test_seq 8)
42cc7485
JT
172 do
173 git -C client checkout --orphan b$i &&
174 test_commit -C client b$i.c0
175 done &&
b2fa7a23 176 for j in $(test_seq 19)
42cc7485 177 do
b2fa7a23 178 for i in $(test_seq 8)
42cc7485
JT
179 do
180 git -C client checkout b$i &&
181 test_commit -C client b$i.c$j
182 done
183 done &&
184
185 # Copy this branch over to the server and add a commit on it so that it
186 # is reachable but not advertised.
187 git -C server fetch --no-tags "$(pwd)/client" b1:refs/heads/b1 &&
188 git -C server checkout b1 &&
189 test_commit -C server commit-on-b1 &&
190
191 test_config -C client fetch.negotiationalgorithm skipping &&
b6e7fc4f 192 trace_fetch client "$(pwd)/server" to_fetch &&
42cc7485
JT
193 grep " fetch" trace &&
194
195 # fetch-pack sends 2 requests each containing 16 "have" lines before
196 # processing the first response. In these 2 requests, 4 commits from
197 # each branch are sent. Just check the first branch.
198 have_sent b1.c19 b1.c17 b1.c14 b1.c9 &&
199 have_not_sent b1.c18 b1.c16 b1.c15 b1.c13 b1.c12 b1.c11 b1.c10 &&
200
201 # While fetch-pack is processing the first response, it should read that
202 # the server ACKs b1.c19 and b1.c17.
203 grep "fetch< ACK $(git -C client rev-parse b1.c19) common" trace &&
204 grep "fetch< ACK $(git -C client rev-parse b1.c17) common" trace &&
205
206 # fetch-pack should thus not send any more commits in the b1 branch, but
207 # should still send the others (in this test, just check b2).
b2fa7a23 208 for i in $(test_seq 0 8)
42cc7485
JT
209 do
210 have_not_sent b1.c$i
211 done &&
212 have_sent b2.c1 b2.c0
213'
214
215test_done