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38f865c27d
When execvp reports EACCES, it can be one of two things:
1. We found a file to execute, but did not have
permissions to do so.
2. We did not have permissions to look in some directory
in the $PATH.
In the former case, we want to consider this a
permissions problem and report it to the user as such (since
getting this for something like "git foo" is likely a
configuration error).
In the latter case, there is a good chance that the
inaccessible directory does not contain anything of
interest. Reporting "permission denied" is confusing to the
user (and prevents our usual "did you mean...?" lookup). It
also prevents git from trying alias lookup, since we do so
only when an external command does not exist (not when it
exists but has an error).
This patch detects EACCES from execvp, checks whether we are
in case (2), and if so converts errno to ENOENT. This
behavior matches that of "bash" (but not of simpler shells
that use execvp more directly, like "dash").
Test stolen from Junio.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
51 lines
1.1 KiB
Bash
Executable file
51 lines
1.1 KiB
Bash
Executable file
#!/bin/sh
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#
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# Copyright (c) 2009 Ilari Liusvaara
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#
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test_description='Test run command'
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. ./test-lib.sh
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cat >hello-script <<-EOF
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#!$SHELL_PATH
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cat hello-script
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EOF
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>empty
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test_expect_success 'start_command reports ENOENT' '
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test-run-command start-command-ENOENT ./does-not-exist
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'
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test_expect_success 'run_command can run a command' '
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cat hello-script >hello.sh &&
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chmod +x hello.sh &&
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test-run-command run-command ./hello.sh >actual 2>err &&
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test_cmp hello-script actual &&
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test_cmp empty err
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'
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test_expect_success POSIXPERM 'run_command reports EACCES' '
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cat hello-script >hello.sh &&
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chmod -x hello.sh &&
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test_must_fail test-run-command run-command ./hello.sh 2>err &&
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grep "fatal: cannot exec.*hello.sh" err
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'
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test_expect_success POSIXPERM 'unreadable directory in PATH' '
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mkdir local-command &&
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test_when_finished "chmod u+rwx local-command && rm -fr local-command" &&
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git config alias.nitfol "!echo frotz" &&
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chmod a-rx local-command &&
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(
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PATH=./local-command:$PATH &&
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git nitfol >actual
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) &&
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echo frotz >expect &&
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test_cmp expect actual
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'
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test_done
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