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author | Ævar Arnfjörð Bjarmason <avarab@gmail.com> | 2021-07-30 19:18:14 +0300 |
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committer | Junio C Hamano <gitster@pobox.com> | 2021-07-30 20:18:27 +0300 |
commit | 482e1488a9b549cbf7466f4ee5396f93bb4588d6 (patch) | |
tree | afadb2266db0663f43774c5548fcd094d1b831a2 /t/helper | |
parent | ebf3c04b262aa27fbb97f8a0156c2347fecafafb (diff) |
t0001: fix broken not-quite getcwd(3) test in bed67874e2
With a54e938e5b (strbuf: support long paths w/o read rights in
strbuf_getcwd() on FreeBSD, 2017-03-26) we had t0001 break on systems
like OpenBSD and AIX whose getcwd(3) has standard (but not like glibc
et al) behavior.
This was partially fixed in bed67874e2 (t0001: skip test with
restrictive permissions if getpwd(3) respects them, 2017-08-07).
The problem with that fix is that while its analysis of the problem is
correct, it doesn't actually call getcwd(3), instead it invokes "pwd
-P". There is no guarantee that "pwd -P" is going to call getcwd(3),
as opposed to e.g. being a shell built-in.
On AIX under both bash and ksh this test breaks because "pwd -P" will
happily display the current working directory, but getcwd(3) called by
the "git init" we're testing here will fail to get it.
I checked whether clobbering the $PWD environment variable would
affect it, and it didn't. Presumably these shells keep track of their
working directory internally.
There's possible follow-up work here in teaching strbuf_getcwd() to
get the working directory with whatever method "pwd" uses on these
platforms. See [1] for a discussion of that, but let's take the easy
way out here and just skip these tests by fixing the
GETCWD_IGNORES_PERMS prerequisite to match the limitations of
strbuf_getcwd().
1. https://lore.kernel.org/git/b650bef5-d739-d98d-e9f1-fa292b6ce982@web.de/
Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 't/helper')
-rw-r--r-- | t/helper/test-getcwd.c | 26 | ||||
-rw-r--r-- | t/helper/test-tool.c | 1 | ||||
-rw-r--r-- | t/helper/test-tool.h | 1 |
3 files changed, 28 insertions, 0 deletions
diff --git a/t/helper/test-getcwd.c b/t/helper/test-getcwd.c new file mode 100644 index 0000000000..d680038a78 --- /dev/null +++ b/t/helper/test-getcwd.c @@ -0,0 +1,26 @@ +#include "test-tool.h" +#include "git-compat-util.h" +#include "parse-options.h" + +static const char *getcwd_usage[] = { + "test-tool getcwd", + NULL +}; + +int cmd__getcwd(int argc, const char **argv) +{ + struct option options[] = { + OPT_END() + }; + char *cwd; + + argc = parse_options(argc, argv, "test-tools", options, getcwd_usage, 0); + if (argc > 0) + usage_with_options(getcwd_usage, options); + + cwd = xgetcwd(); + puts(cwd); + free(cwd); + + return 0; +} diff --git a/t/helper/test-tool.c b/t/helper/test-tool.c index c5bd0c6d4c..3c13cb19b5 100644 --- a/t/helper/test-tool.c +++ b/t/helper/test-tool.c @@ -33,6 +33,7 @@ static struct test_cmd cmds[] = { { "fast-rebase", cmd__fast_rebase }, { "genrandom", cmd__genrandom }, { "genzeros", cmd__genzeros }, + { "getcwd", cmd__getcwd }, { "hashmap", cmd__hashmap }, { "hash-speed", cmd__hash_speed }, { "index-version", cmd__index_version }, diff --git a/t/helper/test-tool.h b/t/helper/test-tool.h index e8069a3b22..e691a4d9e9 100644 --- a/t/helper/test-tool.h +++ b/t/helper/test-tool.h @@ -23,6 +23,7 @@ int cmd__example_decorate(int argc, const char **argv); int cmd__fast_rebase(int argc, const char **argv); int cmd__genrandom(int argc, const char **argv); int cmd__genzeros(int argc, const char **argv); +int cmd__getcwd(int argc, const char **argv); int cmd__hashmap(int argc, const char **argv); int cmd__hash_speed(int argc, const char **argv); int cmd__index_version(int argc, const char **argv); |