git/t/t0061-run-command.sh
Nguyễn Thái Ngọc Duy c61a975df1 run-command.c: print env vars in trace_run_command()
Occasionally submodule code could execute new commands with GIT_DIR set
to some submodule. GIT_TRACE prints just the command line which makes it
hard to tell that it's not really executed on this repository.

Print the env delta (compared to parent environment) in this case.

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-01-19 10:49:20 -08:00

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#!/bin/sh
#
# Copyright (c) 2009 Ilari Liusvaara
#
test_description='Test run command'
. ./test-lib.sh
cat >hello-script <<-EOF
#!$SHELL_PATH
cat hello-script
EOF
>empty
test_expect_success 'start_command reports ENOENT' '
test-run-command start-command-ENOENT ./does-not-exist
'
test_expect_success 'run_command can run a command' '
cat hello-script >hello.sh &&
chmod +x hello.sh &&
test-run-command run-command ./hello.sh >actual 2>err &&
test_cmp hello-script actual &&
test_cmp empty err
'
test_expect_success !MINGW 'run_command can run a script without a #! line' '
cat >hello <<-\EOF &&
cat hello-script
EOF
chmod +x hello &&
test-run-command run-command ./hello >actual 2>err &&
test_cmp hello-script actual &&
test_cmp empty err
'
test_expect_success 'run_command does not try to execute a directory' '
test_when_finished "rm -rf bin1 bin2" &&
mkdir -p bin1/greet bin2 &&
write_script bin2/greet <<-\EOF &&
cat bin2/greet
EOF
PATH=$PWD/bin1:$PWD/bin2:$PATH \
test-run-command run-command greet >actual 2>err &&
test_cmp bin2/greet actual &&
test_cmp empty err
'
test_expect_success POSIXPERM 'run_command passes over non-executable file' '
test_when_finished "rm -rf bin1 bin2" &&
mkdir -p bin1 bin2 &&
write_script bin1/greet <<-\EOF &&
cat bin1/greet
EOF
chmod -x bin1/greet &&
write_script bin2/greet <<-\EOF &&
cat bin2/greet
EOF
PATH=$PWD/bin1:$PWD/bin2:$PATH \
test-run-command run-command greet >actual 2>err &&
test_cmp bin2/greet actual &&
test_cmp empty err
'
test_expect_success POSIXPERM 'run_command reports EACCES' '
cat hello-script >hello.sh &&
chmod -x hello.sh &&
test_must_fail test-run-command run-command ./hello.sh 2>err &&
grep "fatal: cannot exec.*hello.sh" err
'
test_expect_success POSIXPERM,SANITY 'unreadable directory in PATH' '
mkdir local-command &&
test_when_finished "chmod u+rwx local-command && rm -fr local-command" &&
git config alias.nitfol "!echo frotz" &&
chmod a-rx local-command &&
(
PATH=./local-command:$PATH &&
git nitfol >actual
) &&
echo frotz >expect &&
test_cmp expect actual
'
cat >expect <<-EOF
preloaded output of a child
Hello
World
preloaded output of a child
Hello
World
preloaded output of a child
Hello
World
preloaded output of a child
Hello
World
EOF
test_expect_success 'run_command runs in parallel with more jobs available than tasks' '
test-run-command run-command-parallel 5 sh -c "printf \"%s\n%s\n\" Hello World" 2>actual &&
test_cmp expect actual
'
test_expect_success 'run_command runs in parallel with as many jobs as tasks' '
test-run-command run-command-parallel 4 sh -c "printf \"%s\n%s\n\" Hello World" 2>actual &&
test_cmp expect actual
'
test_expect_success 'run_command runs in parallel with more tasks than jobs available' '
test-run-command run-command-parallel 3 sh -c "printf \"%s\n%s\n\" Hello World" 2>actual &&
test_cmp expect actual
'
cat >expect <<-EOF
preloaded output of a child
asking for a quick stop
preloaded output of a child
asking for a quick stop
preloaded output of a child
asking for a quick stop
EOF
test_expect_success 'run_command is asked to abort gracefully' '
test-run-command run-command-abort 3 false 2>actual &&
test_cmp expect actual
'
cat >expect <<-EOF
no further jobs available
EOF
test_expect_success 'run_command outputs ' '
test-run-command run-command-no-jobs 3 sh -c "printf \"%s\n%s\n\" Hello World" 2>actual &&
test_cmp expect actual
'
test_trace () {
expect="$1"
shift
GIT_TRACE=1 test-run-command "$@" run-command true 2>&1 >/dev/null | \
sed 's/.* run_command: //' >actual &&
echo "$expect true" >expect &&
test_cmp expect actual
}
test_expect_success 'GIT_TRACE with environment variables' '
test_trace "abc=1 def=2" env abc=1 env def=2 &&
test_trace "abc=2" env abc env abc=1 env abc=2 &&
test_trace "abc=2" env abc env abc=2 &&
(
abc=1 && export abc &&
test_trace "def=1" env abc=1 env def=1
) &&
(
abc=1 && export abc &&
test_trace "def=1" env abc env abc=1 env def=1
) &&
test_trace "def=1" env non-exist env def=1 &&
test_trace "abc=2" env abc=1 env abc env abc=2 &&
(
abc=1 def=2 && export abc def &&
test_trace "unset abc def;" env abc env def
) &&
(
abc=1 def=2 && export abc def &&
test_trace "unset def; abc=3" env abc env def env abc=3
) &&
(
abc=1 && export abc &&
test_trace "unset abc;" env abc=2 env abc
)
'
test_done