mirror of
https://github.com/git/git.git
synced 2024-11-27 12:03:55 +08:00
940283101c
In some situations run-command will incorrectly try (and fail) to execute a directory instead of an executable file. This was observed by having a directory called "ssh" in $PATH before the real ssh and trying to use ssh protoccol, reslting in the following: $ git ls-remote ssh://url fatal: cannot exec 'ssh': Permission denied It ends up being worse and run-command will even try to execute a non-executable file if it preceeds the executable version of a file on the PATH. For example, if PATH=~/bin1:~/bin2:~/bin3 and there exists a directory 'git-hello' in 'bin1', a non-executable file 'git-hello' in bin2 and an executable file 'git-hello' (which prints "Hello World!") in bin3 the following will occur: $ git hello fatal: cannot exec 'git-hello': Permission denied This is due to only checking 'access()' when locating an executable in PATH, which doesn't distinguish between files and directories. Instead use 'is_executable()' which check that the path is to a regular, executable file. Now run-command won't try to execute the directory or non-executable file 'git-hello': $ git hello Hello World! which matches what execvp(3) would have done when asked to execute git-hello with such a $PATH. Reported-by: Brian Hatfield <bhatfield@google.com> Signed-off-by: Brandon Williams <bmwill@google.com> Reviewed-by: Jonathan Nieder <jrnieder@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
145 lines
3.4 KiB
Bash
Executable File
145 lines
3.4 KiB
Bash
Executable File
#!/bin/sh
|
|
#
|
|
# Copyright (c) 2009 Ilari Liusvaara
|
|
#
|
|
|
|
test_description='Test run command'
|
|
|
|
. ./test-lib.sh
|
|
|
|
cat >hello-script <<-EOF
|
|
#!$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_done
|