git/t/t0210-trace2-normal.sh
Patrick Steinhardt ce01f92889 remote: plug memory leak when aliasing URLs
When we have a `url.*.insteadOf` configuration, then we end up aliasing
URLs when populating remotes. One place where this happens is in
`alias_all_urls()`, where we loop through all remotes and then alias
each of their URLs. The actual aliasing logic is then contained in
`alias_url()`, which returns an allocated string that contains the new
URL. This URL replaces the old URL that we have in the strvec that
contains all remote URLs.

We replace the remote URLs via `strvec_replace()`, which does not hand
over ownership of the new string to the vector. Still, we didn't free
the aliased URL and thus have a memory leak here. Fix it by freeing the
aliased string.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2024-08-14 10:07:56 -07:00

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#!/bin/sh
test_description='test trace2 facility (normal target)'
TEST_PASSES_SANITIZE_LEAK=true
. ./test-lib.sh
# Turn off any inherited trace2 settings for this test.
sane_unset GIT_TRACE2 GIT_TRACE2_PERF GIT_TRACE2_EVENT
sane_unset GIT_TRACE2_BRIEF
sane_unset GIT_TRACE2_CONFIG_PARAMS
# Add t/helper directory to PATH so that we can use a relative
# path to run nested instances of test-tool.exe (see 004child).
# This helps with HEREDOC comparisons later.
TTDIR="$GIT_BUILD_DIR/t/helper/" && export TTDIR
PATH="$TTDIR:$PATH" && export PATH
# Warning: use of 'test_cmp' may run test-tool.exe and/or git.exe
# Warning: to do the actual diff/comparison, so the HEREDOCs here
# Warning: only cover our actual calls to test-tool and/or git.
# Warning: So you may see extra lines in artifact files when
# Warning: interactively debugging.
V=$(git version | sed -e 's/^git version //') && export V
# There are multiple trace2 targets: normal, perf, and event.
# Trace2 events will/can be written to each active target (subject
# to whatever filtering that target decides to do).
# This script tests the normal target in isolation.
#
# Defer setting GIT_TRACE2 until the actual command line we want to test
# because hidden git and test-tool commands run by the test harness
# can contaminate our output.
# Enable "brief" feature which turns off "<clock> <file>:<line> " prefix.
GIT_TRACE2_BRIEF=1 && export GIT_TRACE2_BRIEF
# Basic tests of the trace2 normal stream. Since this stream is used
# primarily with printf-style debugging/tracing, we do limited testing
# here.
#
# We do confirm the following API features:
# [] the 'version <v>' event
# [] the 'start <argv>' event
# [] the 'cmd_name <name>' event
# [] the 'exit <time> code:<code>' event
# [] the 'atexit <time> code:<code>' event
#
# Fields of the form _FIELD_ are tokens that have been replaced (such
# as the elapsed time).
# Verb 001return
#
# Implicit return from cmd_<verb> function propagates <code>.
test_expect_success 'normal stream, return code 0' '
test_when_finished "rm trace.normal actual expect" &&
GIT_TRACE2="$(pwd)/trace.normal" test-tool trace2 001return 0 &&
perl "$TEST_DIRECTORY/t0210/scrub_normal.perl" <trace.normal >actual &&
cat >expect <<-EOF &&
version $V
start _EXE_ trace2 001return 0
cmd_name trace2 (trace2)
exit elapsed:_TIME_ code:0
atexit elapsed:_TIME_ code:0
EOF
test_cmp expect actual
'
test_expect_success 'normal stream, return code 1' '
test_when_finished "rm trace.normal actual expect" &&
test_must_fail env GIT_TRACE2="$(pwd)/trace.normal" test-tool trace2 001return 1 &&
perl "$TEST_DIRECTORY/t0210/scrub_normal.perl" <trace.normal >actual &&
cat >expect <<-EOF &&
version $V
start _EXE_ trace2 001return 1
cmd_name trace2 (trace2)
exit elapsed:_TIME_ code:1
atexit elapsed:_TIME_ code:1
EOF
test_cmp expect actual
'
test_expect_success 'automatic filename' '
test_when_finished "rm -r traces actual expect" &&
mkdir traces &&
GIT_TRACE2="$(pwd)/traces" test-tool trace2 001return 0 &&
perl "$TEST_DIRECTORY/t0210/scrub_normal.perl" <"$(ls traces/*)" >actual &&
cat >expect <<-EOF &&
version $V
start _EXE_ trace2 001return 0
cmd_name trace2 (trace2)
exit elapsed:_TIME_ code:0
atexit elapsed:_TIME_ code:0
EOF
test_cmp expect actual
'
# Verb 002exit
#
# Explicit exit(code) from within cmd_<verb> propagates <code>.
test_expect_success 'normal stream, exit code 0' '
test_when_finished "rm trace.normal actual expect" &&
GIT_TRACE2="$(pwd)/trace.normal" test-tool trace2 002exit 0 &&
perl "$TEST_DIRECTORY/t0210/scrub_normal.perl" <trace.normal >actual &&
cat >expect <<-EOF &&
version $V
start _EXE_ trace2 002exit 0
cmd_name trace2 (trace2)
exit elapsed:_TIME_ code:0
atexit elapsed:_TIME_ code:0
EOF
test_cmp expect actual
'
test_expect_success 'normal stream, exit code 1' '
test_when_finished "rm trace.normal actual expect" &&
test_must_fail env GIT_TRACE2="$(pwd)/trace.normal" test-tool trace2 002exit 1 &&
perl "$TEST_DIRECTORY/t0210/scrub_normal.perl" <trace.normal >actual &&
cat >expect <<-EOF &&
version $V
start _EXE_ trace2 002exit 1
cmd_name trace2 (trace2)
exit elapsed:_TIME_ code:1
atexit elapsed:_TIME_ code:1
EOF
test_cmp expect actual
'
# Verb 003error
#
# To the above, add multiple 'error <msg>' events
test_expect_success 'normal stream, error event' '
test_when_finished "rm trace.normal actual expect" &&
GIT_TRACE2="$(pwd)/trace.normal" test-tool trace2 003error "hello world" "this is a test" &&
perl "$TEST_DIRECTORY/t0210/scrub_normal.perl" <trace.normal >actual &&
cat >expect <<-EOF &&
version $V
start _EXE_ trace2 003error '\''hello world'\'' '\''this is a test'\''
cmd_name trace2 (trace2)
error hello world
error this is a test
exit elapsed:_TIME_ code:0
atexit elapsed:_TIME_ code:0
EOF
test_cmp expect actual
'
# Verb 007bug
#
# Check that BUG writes to trace2
test_expect_success 'BUG messages are written to trace2' '
test_when_finished "rm trace.normal actual expect" &&
test_must_fail env GIT_TRACE2="$(pwd)/trace.normal" test-tool trace2 007bug &&
perl "$TEST_DIRECTORY/t0210/scrub_normal.perl" <trace.normal >actual &&
cat >expect <<-EOF &&
version $V
start _EXE_ trace2 007bug
cmd_name trace2 (trace2)
error the bug message
exit elapsed:_TIME_ code:99
atexit elapsed:_TIME_ code:99
EOF
test_cmp expect actual
'
test_expect_success 'bug messages with BUG_if_bug() are written to trace2' '
test_when_finished "rm trace.normal actual expect" &&
test_expect_code 99 env GIT_TRACE2="$(pwd)/trace.normal" \
test-tool trace2 008bug 2>err &&
cat >expect <<-\EOF &&
a bug message
another bug message
an explicit BUG_if_bug() following bug() call(s) is nice, but not required
EOF
sed "s/^.*: //" <err >actual &&
test_cmp expect actual &&
perl "$TEST_DIRECTORY/t0210/scrub_normal.perl" <trace.normal >actual &&
cat >expect <<-EOF &&
version $V
start _EXE_ trace2 008bug
cmd_name trace2 (trace2)
error a bug message
error another bug message
error an explicit BUG_if_bug() following bug() call(s) is nice, but not required
exit elapsed:_TIME_ code:99
atexit elapsed:_TIME_ code:99
EOF
test_cmp expect actual
'
test_expect_success 'bug messages without explicit BUG_if_bug() are written to trace2' '
test_when_finished "rm trace.normal actual expect" &&
test_expect_code 99 env GIT_TRACE2="$(pwd)/trace.normal" \
test-tool trace2 009bug_BUG 2>err &&
cat >expect <<-\EOF &&
a bug message
another bug message
had bug() call(s) in this process without explicit BUG_if_bug()
EOF
sed "s/^.*: //" <err >actual &&
test_cmp expect actual &&
perl "$TEST_DIRECTORY/t0210/scrub_normal.perl" <trace.normal >actual &&
cat >expect <<-EOF &&
version $V
start _EXE_ trace2 009bug_BUG
cmd_name trace2 (trace2)
error a bug message
error another bug message
error on exit(): had bug() call(s) in this process without explicit BUG_if_bug()
exit elapsed:_TIME_ code:99
atexit elapsed:_TIME_ code:99
EOF
test_cmp expect actual
'
test_expect_success 'bug messages followed by BUG() are written to trace2' '
test_when_finished "rm trace.normal actual expect" &&
test_expect_code 99 env GIT_TRACE2="$(pwd)/trace.normal" \
test-tool trace2 010bug_BUG 2>err &&
cat >expect <<-\EOF &&
a bug message
a BUG message
EOF
sed "s/^.*: //" <err >actual &&
test_cmp expect actual &&
perl "$TEST_DIRECTORY/t0210/scrub_normal.perl" <trace.normal >actual &&
cat >expect <<-EOF &&
version $V
start _EXE_ trace2 010bug_BUG
cmd_name trace2 (trace2)
error a bug message
error a BUG message
exit elapsed:_TIME_ code:99
atexit elapsed:_TIME_ code:99
EOF
test_cmp expect actual
'
sane_unset GIT_TRACE2_BRIEF
# Now test without environment variables and get all Trace2 settings
# from the global config.
test_expect_success 'using global config, normal stream, return code 0' '
test_when_finished "rm trace.normal actual expect" &&
test_config_global trace2.normalBrief 1 &&
test_config_global trace2.normalTarget "$(pwd)/trace.normal" &&
test-tool trace2 001return 0 &&
perl "$TEST_DIRECTORY/t0210/scrub_normal.perl" <trace.normal >actual &&
cat >expect <<-EOF &&
version $V
start _EXE_ trace2 001return 0
cmd_name trace2 (trace2)
exit elapsed:_TIME_ code:0
atexit elapsed:_TIME_ code:0
EOF
test_cmp expect actual
'
test_expect_success 'using global config with include' '
test_when_finished "rm trace.normal actual expect real.gitconfig" &&
test_config_global trace2.normalBrief 1 &&
test_config_global trace2.normalTarget "$(pwd)/trace.normal" &&
mv "$(pwd)/.gitconfig" "$(pwd)/real.gitconfig" &&
test_config_global include.path "$(pwd)/real.gitconfig" &&
test-tool trace2 001return 0 &&
perl "$TEST_DIRECTORY/t0210/scrub_normal.perl" <trace.normal >actual &&
cat >expect <<-EOF &&
version $V
start _EXE_ trace2 001return 0
cmd_name trace2 (trace2)
exit elapsed:_TIME_ code:0
atexit elapsed:_TIME_ code:0
EOF
test_cmp expect actual
'
test_expect_success 'unsafe URLs are redacted by default' '
test_when_finished \
"rm -r trace.normal unredacted.normal clone clone2" &&
test_config_global \
"url.$(pwd).insteadOf" https://user:pwd@example.com/ &&
test_config_global trace2.configParams "core.*,remote.*.url" &&
GIT_TRACE2="$(pwd)/trace.normal" \
git clone https://user:pwd@example.com/ clone &&
! grep user:pwd trace.normal &&
GIT_TRACE2_REDACT=0 GIT_TRACE2="$(pwd)/unredacted.normal" \
git clone https://user:pwd@example.com/ clone2 &&
grep "start .* clone https://user:pwd@example.com" unredacted.normal &&
grep "remote.origin.url=https://user:pwd@example.com" unredacted.normal
'
test_done