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authorJeff Hostetler <jeffhostetler@github.com>2024-03-07 15:22:27 +0000
committerJunio C Hamano <gitster@pobox.com>2024-03-07 10:24:34 -0800
commit0c1c3c861eacc7e27e627c80cc081ec7c00c743d (patch)
tree22b47a16348bdc077eadf05bd10169c6eafd725f /t
parentb387623c12f3f4a376e4d35a610fd3e55d7ea907 (diff)
downloadgit-0c1c3c861eacc7e27e627c80cc081ec7c00c743d.tar.gz
t0211: demonstrate missing 'def_param' events for certain commands
Some Git commands fail to emit 'def_param' events for interesting config and environment variable settings. Add unit tests to demonstrate this. Most commands are considered "builtin" and are based upon git.c. These typically do emit 'def_param' events. Exceptions are some of the "query" commands, the "run-dashed" mechanism, and alias handling. Commands built from remote-curl.c (instead of git.c), such as "git-remote-https", do not emit 'def_param' events. Likewise, "git-http-fetch" is built http-fetch.c and does not emit them. Signed-off-by: Jeff Hostetler <jeffhostetler@github.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't')
-rwxr-xr-xt/t0211-trace2-perf.sh231
1 files changed, 231 insertions, 0 deletions
diff --git a/t/t0211-trace2-perf.sh b/t/t0211-trace2-perf.sh
index 290b6eaaab..588c5bad03 100755
--- a/t/t0211-trace2-perf.sh
+++ b/t/t0211-trace2-perf.sh
@@ -287,4 +287,235 @@ test_expect_success 'unsafe URLs are redacted by default' '
grep "d0|main|def_param|.*|remote.origin.url:https://user:pwd@example.com" actual
'
+# Confirm that the requested command produces a "cmd_name" and a
+# set of "def_param" events.
+#
+try_simple () {
+ test_when_finished "rm prop.perf actual" &&
+
+ cmd=$1 &&
+ cmd_name=$2 &&
+
+ test_config_global "trace2.configParams" "cfg.prop.*" &&
+ test_config_global "trace2.envvars" "ENV_PROP_FOO,ENV_PROP_BAR" &&
+
+ test_config_global "cfg.prop.foo" "red" &&
+
+ ENV_PROP_FOO=blue \
+ GIT_TRACE2_PERF="$(pwd)/prop.perf" \
+ $cmd &&
+ perl "$TEST_DIRECTORY/t0211/scrub_perf.perl" <prop.perf >actual &&
+ grep "d0|main|cmd_name|.*|$cmd_name" actual &&
+ grep "d0|main|def_param|.*|cfg.prop.foo:red" actual &&
+ grep "d0|main|def_param|.*|ENV_PROP_FOO:blue" actual
+}
+
+# Representative mainstream builtin Git command dispatched
+# in run_builtin() in git.c
+#
+test_expect_success 'expect def_params for normal builtin command' '
+ try_simple "git version" "version"
+'
+
+# Representative query command dispatched in handle_options()
+# in git.c
+#
+test_expect_failure 'expect def_params for query command' '
+ try_simple "git --man-path" "_query_"
+'
+
+# remote-curl.c does not use the builtin setup in git.c, so confirm
+# that executables built from remote-curl.c emit def_params.
+#
+# Also tests the dashed-command handling where "git foo" silently
+# spawns "git-foo". Make sure that both commands should emit
+# def_params.
+#
+# Pass bogus arguments to remote-https and allow the command to fail
+# because we don't actually have a remote to fetch from. We just want
+# to see the run-dashed code run an executable built from
+# remote-curl.c rather than git.c. Confirm that we get def_param
+# events from both layers.
+#
+test_expect_failure 'expect def_params for remote-curl and _run_dashed_' '
+ test_when_finished "rm prop.perf actual" &&
+
+ test_config_global "trace2.configParams" "cfg.prop.*" &&
+ test_config_global "trace2.envvars" "ENV_PROP_FOO,ENV_PROP_BAR" &&
+
+ test_config_global "cfg.prop.foo" "red" &&
+
+ test_might_fail env \
+ ENV_PROP_FOO=blue \
+ GIT_TRACE2_PERF="$(pwd)/prop.perf" \
+ git remote-http x y &&
+
+ perl "$TEST_DIRECTORY/t0211/scrub_perf.perl" <prop.perf >actual &&
+
+ grep "d0|main|cmd_name|.*|_run_dashed_" actual &&
+ grep "d0|main|def_param|.*|cfg.prop.foo:red" actual &&
+ grep "d0|main|def_param|.*|ENV_PROP_FOO:blue" actual &&
+
+ grep "d1|main|cmd_name|.*|remote-curl" actual &&
+ grep "d1|main|def_param|.*|cfg.prop.foo:red" actual &&
+ grep "d1|main|def_param|.*|ENV_PROP_FOO:blue" actual
+'
+
+# Similarly, `git-http-fetch` is not built from git.c so do a
+# trivial fetch so that the main git.c run-dashed code spawns
+# an executable built from http-fetch.c. Confirm that we get
+# def_param events from both layers.
+#
+test_expect_failure 'expect def_params for http-fetch and _run_dashed_' '
+ test_when_finished "rm prop.perf actual" &&
+
+ test_config_global "trace2.configParams" "cfg.prop.*" &&
+ test_config_global "trace2.envvars" "ENV_PROP_FOO,ENV_PROP_BAR" &&
+
+ test_config_global "cfg.prop.foo" "red" &&
+
+ test_might_fail env \
+ ENV_PROP_FOO=blue \
+ GIT_TRACE2_PERF="$(pwd)/prop.perf" \
+ git http-fetch --stdin file:/// <<-EOF &&
+ EOF
+
+ perl "$TEST_DIRECTORY/t0211/scrub_perf.perl" <prop.perf >actual &&
+
+ grep "d0|main|cmd_name|.*|_run_dashed_" actual &&
+ grep "d0|main|def_param|.*|cfg.prop.foo:red" actual &&
+ grep "d0|main|def_param|.*|ENV_PROP_FOO:blue" actual &&
+
+ grep "d1|main|cmd_name|.*|http-fetch" actual &&
+ grep "d1|main|def_param|.*|cfg.prop.foo:red" actual &&
+ grep "d1|main|def_param|.*|ENV_PROP_FOO:blue" actual
+'
+
+# Historically, alias expansion explicitly emitted the def_param
+# events (independent of whether the command was a builtin, a Git
+# command or arbitrary shell command) so that it wasn't dependent
+# upon the unpeeling of the alias. Let's make sure that we preserve
+# the net effect.
+#
+test_expect_success 'expect def_params during git alias expansion' '
+ test_when_finished "rm prop.perf actual" &&
+
+ test_config_global "trace2.configParams" "cfg.prop.*" &&
+ test_config_global "trace2.envvars" "ENV_PROP_FOO,ENV_PROP_BAR" &&
+
+ test_config_global "cfg.prop.foo" "red" &&
+
+ test_config_global "alias.xxx" "version" &&
+
+ ENV_PROP_FOO=blue \
+ GIT_TRACE2_PERF="$(pwd)/prop.perf" \
+ git xxx &&
+
+ perl "$TEST_DIRECTORY/t0211/scrub_perf.perl" <prop.perf >actual &&
+
+ # "git xxx" is first mapped to "git-xxx" and the child will fail.
+ grep "d0|main|cmd_name|.*|_run_dashed_ (_run_dashed_)" actual &&
+
+ # We unpeel that and substitute "version" into "xxx" (giving
+ # "git version") and update the cmd_name event.
+ grep "d0|main|cmd_name|.*|_run_git_alias_ (_run_dashed_/_run_git_alias_)" actual &&
+
+ # These def_param events could be associated with either of the
+ # above cmd_name events. It does not matter.
+ grep "d0|main|def_param|.*|cfg.prop.foo:red" actual &&
+ grep "d0|main|def_param|.*|ENV_PROP_FOO:blue" actual &&
+
+ # The "git version" child sees a different cmd_name hierarchy.
+ # Also test the def_param (only for completeness).
+ grep "d1|main|cmd_name|.*|version (_run_dashed_/_run_git_alias_/version)" actual &&
+ grep "d1|main|def_param|.*|cfg.prop.foo:red" actual &&
+ grep "d1|main|def_param|.*|ENV_PROP_FOO:blue" actual
+'
+
+test_expect_success 'expect def_params during shell alias expansion' '
+ test_when_finished "rm prop.perf actual" &&
+
+ test_config_global "trace2.configParams" "cfg.prop.*" &&
+ test_config_global "trace2.envvars" "ENV_PROP_FOO,ENV_PROP_BAR" &&
+
+ test_config_global "cfg.prop.foo" "red" &&
+
+ test_config_global "alias.xxx" "!git version" &&
+
+ ENV_PROP_FOO=blue \
+ GIT_TRACE2_PERF="$(pwd)/prop.perf" \
+ git xxx &&
+
+ perl "$TEST_DIRECTORY/t0211/scrub_perf.perl" <prop.perf >actual &&
+
+ # "git xxx" is first mapped to "git-xxx" and the child will fail.
+ grep "d0|main|cmd_name|.*|_run_dashed_ (_run_dashed_)" actual &&
+
+ # We unpeel that and substitute "git version" for "git xxx" (as a
+ # shell command. Another cmd_name event is emitted as we unpeel.
+ grep "d0|main|cmd_name|.*|_run_shell_alias_ (_run_dashed_/_run_shell_alias_)" actual &&
+
+ # These def_param events could be associated with either of the
+ # above cmd_name events. It does not matter.
+ grep "d0|main|def_param|.*|cfg.prop.foo:red" actual &&
+ grep "d0|main|def_param|.*|ENV_PROP_FOO:blue" actual &&
+
+ # We get the following only because we used a git command for the
+ # shell command. In general, it could have been a shell script and
+ # we would see nothing.
+ #
+ # The child knows the cmd_name hierarchy so it includes it.
+ grep "d1|main|cmd_name|.*|version (_run_dashed_/_run_shell_alias_/version)" actual &&
+ grep "d1|main|def_param|.*|cfg.prop.foo:red" actual &&
+ grep "d1|main|def_param|.*|ENV_PROP_FOO:blue" actual
+'
+
+test_expect_failure 'expect def_params during nested git alias expansion' '
+ test_when_finished "rm prop.perf actual" &&
+
+ test_config_global "trace2.configParams" "cfg.prop.*" &&
+ test_config_global "trace2.envvars" "ENV_PROP_FOO,ENV_PROP_BAR" &&
+
+ test_config_global "cfg.prop.foo" "red" &&
+
+ test_config_global "alias.xxx" "yyy" &&
+ test_config_global "alias.yyy" "version" &&
+
+ ENV_PROP_FOO=blue \
+ GIT_TRACE2_PERF="$(pwd)/prop.perf" \
+ git xxx &&
+
+ perl "$TEST_DIRECTORY/t0211/scrub_perf.perl" <prop.perf >actual &&
+
+ # "git xxx" is first mapped to "git-xxx" and try to spawn "git-xxx"
+ # and the child will fail.
+ grep "d0|main|cmd_name|.*|_run_dashed_ (_run_dashed_)" actual &&
+ grep "d0|main|child_start|.*|.* class:dashed argv:\[git-xxx\]" actual &&
+
+ # We unpeel that and substitute "yyy" into "xxx" (giving "git yyy")
+ # and spawn "git-yyy" and the child will fail.
+ grep "d0|main|alias|.*|alias:xxx argv:\[yyy\]" actual &&
+ grep "d0|main|cmd_name|.*|_run_dashed_ (_run_dashed_/_run_dashed_)" actual &&
+ grep "d0|main|child_start|.*|.* class:dashed argv:\[git-yyy\]" actual &&
+
+ # We unpeel that and substitute "version" into "xxx" (giving
+ # "git version") and update the cmd_name event.
+ grep "d0|main|alias|.*|alias:yyy argv:\[version\]" actual &&
+ grep "d0|main|cmd_name|.*|_run_git_alias_ (_run_dashed_/_run_dashed_/_run_git_alias_)" actual &&
+
+ # These def_param events could be associated with any of the
+ # above cmd_name events. It does not matter.
+ grep "d0|main|def_param|.*|cfg.prop.foo:red" actual >actual.matches &&
+ grep "d0|main|def_param|.*|ENV_PROP_FOO:blue" actual &&
+
+ # However, we do not want them repeated each time we unpeel.
+ test_line_count = 1 actual.matches &&
+
+ # The "git version" child sees a different cmd_name hierarchy.
+ # Also test the def_param (only for completeness).
+ grep "d1|main|cmd_name|.*|version (_run_dashed_/_run_dashed_/_run_git_alias_/version)" actual &&
+ grep "d1|main|def_param|.*|cfg.prop.foo:red" actual &&
+ grep "d1|main|def_param|.*|ENV_PROP_FOO:blue" actual
+'
+
test_done