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2021-09-13t3407: rename a variablePhillip Wood1-7/+7
$dotest holds the name of the rebase state directory and was named after the state directory used at the time the test was added. As we no longer use that name rename the variable to reflect its purpose. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-13t3407: use test_cmp_revPhillip Wood1-7/+7
This provides better diagnostics if a test fails Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-13t3407: use test_commitPhillip Wood1-12/+5
Simplify the setup by using test_commit. Note that this replaces the branch "pre-rebase" with a tag of the same name. "pre-rebase" is only used as a fixed reference point so it makes sense to use a tag rather than a branch. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-13t3407: run tests in $TEST_DIRECTORYPhillip Wood1-13/+0
Commit 97b88dd58c ("git-rebase.sh: Fix --merge --abort failures when path contains whitespace", 2008-05-04) started running these tests in a subdirectory with a space in its name. At that time $TEST_DIRECTORY did not contain a space but shortly after in 4a7aaccd83 ("Rename the test trash directory to contain spaces.", 2008-05-04) $TEST_DIRECTORY was changed to contain a space so we no longer need to run these tests in a subdirectory. Signed-off-by: Phillip Wood <phillip.wood@dunelm.org.uk> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-13http: don't hardcode the value of CURL_SOCKOPT_OKÆvar Arnfjörð Bjarmason2-1/+12
Use the new git-curl-compat.h header to define CURL_SOCKOPT_OK to its known value if we're on an older curl version that doesn't have it. It was hardcoded in http.c in a15d069a198 (http: enable keepalive on TCP sockets, 2013-10-12). Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-13http: centralize the accounting of libcurl dependenciesÆvar Arnfjörð Bjarmason3-15/+133
As discussed in 644de29e220 (http: drop support for curl < 7.19.4, 2021-07-30) checking against LIBCURL_VERSION_NUM isn't as reliable as checking specific symbols present in curl, as some distros have been known to backport features. However, while some of the curl_easy_setopt() arguments we rely on are macros, others are enum, and we can't assume that those that are macros won't change into enums in the future. So we're still going to have to check LIBCURL_VERSION_NUM, but by doing that in one central place and using a macro definition of our own, anyone who's backporting features can define it themselves, and thus have access to more modern curl features that they backported, even if they didn't bump the LIBCURL_VERSION_NUM. More importantly, as shown in a preceding commit doing these version checks makes for hard to read and possibly buggy code, as shown by the bug fixed there where we were conflating base 10 for base 16 when comparing the version. By doing them all in one place we'll hopefully reduce the chances of such future mistakes, furthermore it now becomes easier to see at a glance what the oldest supported version is, which makes it easier to reason about any future deprecation similar to the recent e48a623dea0 (Merge branch 'ab/http-drop-old-curl', 2021-08-24). Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-13http: correct curl version check for CURLOPT_PINNEDPUBLICKEYÆvar Arnfjörð Bjarmason1-4/+4
In aeff8a61216 (http: implement public key pinning, 2016-02-15) a dependency and warning() was added if curl older than 7.44.0 was used, but the relevant code depended on CURLOPT_PINNEDPUBLICKEY, introduced in 7.39.0. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-13http: correct version check for CURL_HTTP_VERSION_2Ævar Arnfjörð Bjarmason1-2/+2
In d73019feb44 (http: add support selecting http version, 2018-11-08) a dependency was added on CURL_HTTP_VERSION_2, but this feature was introduced in curl version 7.43.0, not 7.47.0, as the incorrect version check led us to believe. As looking through the history of that commit on the mailing list will reveal[1], the reason for this is that an earlier version of it depended on CURL_HTTP_VERSION_2TLS, which was introduced in libcurl 7.47.0. But the version that made it in in d73019feb44 had dropped the dependency on CURL_HTTP_VERSION_2TLS, but the corresponding version check was not corrected. The newest symbol we depend on is CURL_HTTP_VERSION_2. It was added in 7.33.0, but the CURL_HTTP_VERSION_2 alias we used was added in 7.47.0. So we could support an even older version here, but let's just correct the checked version. 1. https://lore.kernel.org/git/pull.69.git.gitgitgadget@gmail.com/ Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-13http: drop support for curl < 7.18.0 (again)Ævar Arnfjörð Bjarmason1-2/+0
In 644de29e220 (http: drop support for curl < 7.19.4, 2021-07-30) we dropped support for curl < 7.19.4, so we can drop support for this non-obvious dependency on curl < 7.18.0. It's non-obvious because in curl's hex version notation 0x071800 is version 7.24.0, *not* 7.18.0, so at a glance this patch looks incorrect. But it's correct, because the existing version check being removed here is wrong. The check guards use of the following curl defines: CURLPROXY_SOCKS4 7.10 CURLPROXY_SOCKS4A 7.18.0 CURLPROXY_SOCKS5 7.10 CURLPROXY_SOCKS5_HOSTNAME 7.18.0 I.e. the oldest version that has these is in fact 7.18.0, not 7.24.0. That we were checking 7.24.0 is just an mistake in 6d7afe07f29 (remote-http(s): support SOCKS proxies, 2015-10-26), i.e. its author confusing base 10 and base 16. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-13Makefile: drop support for curl < 7.9.8 (again)Ævar Arnfjörð Bjarmason1-9/+2
In 1119a15b5c8 (http: drop support for curl < 7.11.1, 2021-07-30) support for curl versions older than 7.11.1 was removed, and we currently require at least version 7.19.4, see 644de29e220 (http: drop support for curl < 7.19.4, 2021-07-30). In those changes this Makefile-specific check added in 0890098780f (Decide whether to build http-push in the Makefile, 2005-11-18) was missed, now that we're never going to use such an ancient curl version we don't need to check that we have at least 7.9.8 here. I have no idea what in http-push.c broke on versions older than that. This does not impact "NO_CURL" setups, as this is in the "else" branch after that check. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-13INSTALL: mention that we need libcurl 7.19.4 or newer to buildÆvar Arnfjörð Bjarmason1-0/+4
Without NO_CURL=Y we require at least version "7.19.4" of libcurl, see 644de29e220 (http: drop support for curl < 7.19.4, 2021-07-30). Let's document this in the "INSTALL" document. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12parse-options API: remove OPTION_ARGUMENT featureÆvar Arnfjörð Bjarmason6-28/+3
As was noted in 1a85b49b87a (parse-options: make OPT_ARGUMENT() more useful, 2019-03-14) there's only ever been one user of the OPT_ARGUMENT(), that user was added in 20de316e334 (difftool: allow running outside Git worktrees with --no-index, 2019-03-14). The OPT_ARGUMENT() feature itself was added way back in 580d5bffdea (parse-options: new option type to treat an option-like parameter as an argument., 2008-03-02), but as discussed in 1a85b49b87a wasn't used until 20de316e334 in 2019. Now that the preceding commit has migrated this code over to using "struct strvec" to manage the "args" member of a "struct child_process", we can just use that directly instead of relying on OPT_ARGUMENT. This has a minor change in behavior in that if we'll pass --no-index we'll now always pass it as the first argument, before we'd pass it in whatever position the caller did. Preserving this was the real value of OPT_ARGUMENT(), but as it turns out we didn't need that either. We can always inject it as the first argument, the other end will parse it just the same. Note that we cannot remove the "out" and "cpidx" members of "struct parse_opt_ctx_t" added in 580d5bffdea, while they were introduced with OPT_ARGUMENT() we since used them for other things. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12difftool: use run_command() API in run_file_diff()Ævar Arnfjörð Bjarmason1-7/+6
Change the run_file_diff() function to use the run_command() API directly, instead of invoking the run_command_v_opt_cd_env() wrapper. This allows it, like run_dir_diff(), to use the "args" from "struct strvec", instead of the "const char **argv" passed into cmd_difftool(). This will be used in the subsequent commit to get rid of OPT_ARGUMENT() from cmd_difftool(). Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12difftool: prepare "diff" cmdline in cmd_difftool()Jeff King1-8/+7
We call into either run_dir_diff() or run_file_diff(), each of which sets up a child argv starting with "diff" and some hard-coded options (depending on which mode we're using). Let's extract that logic into the caller, which will make it easier to modify the options for cases which affect both functions. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12difftool: prepare "struct child_process" in cmd_difftool()Ævar Arnfjörð Bjarmason1-14/+15
Move the preparation of the "struct child_process" from run_dir_diff() to its only caller, cmd_difftool(). This is in preparation for migrating run_file_diff() to using the run_command() API directly, and to move more of the shared setup of the two to cmd_difftool(). Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12git rev-parse --parseopt tests: add more usagestr testsÆvar Arnfjörð Bjarmason1-0/+54
Add tests for the "usagestr" passed to parse-options.c usage_with_options_internal() through cmd_parseopt(). These test for edge cases in the existing behavior related to the "--parseopt" interface doing its own line-splitting with strbuf_getline(), and the native C interface expecting and potentially needing to handle newlines within the strings in the array it accepts. The results are probably something that wasn't anticipated, but let's make sure we stay backwards compatible with it. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12send-pack: properly use parse_options() API for usage stringÆvar Arnfjörð Bjarmason2-6/+6
When "send-pack" was changed to use the parse_options() API in 068c77a5189 (builtin/send-pack.c: use parse_options API, 2015-08-19) it was made to use one very long line, instead it should split them up with newlines. Furthermore we were including an inline explanation that you couldn't combine "--all" and "<ref>", but unlike in the "blame" case this was not preceded by an empty string. Let's instead show that --all and <ref> can't be combined in the the usual language of the usage syntax instead. We can make it clear that one of the two options "--foo" and "--bar" is mandatory, but that the two are mutually exclusive by referring to them as "( --foo | --bar )". Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12parse-options API users: align usage output in C-stringsÆvar Arnfjörð Bjarmason4-8/+8
In preparation for having continued usage lines properly aligned in "git <cmd> -h" output, let's have the "[" on the second such lines align with the "[" on the first line. In some cases this makes the output worse, because e.g. the "git ls-remote -h" output had been aligned to account for the extra whitespace that the usage_with_options_internal() function in parse-options.c would add. In other cases such as builtin/stash.c (not changed here), we were aligned in the C strings, but since that didn't account for the extra padding in usage_with_options_internal() it would come out looking misaligned, e.g. code like this: N_("git stash [push [-p|--patch] [-k|--[no-]keep-index] [-q|--quiet]\n" " [-u|--include-untracked] [-a|--all] [-m|--message <message>]\n" Would emit: or: git stash [push [-p|--patch] [-k|--[no-]keep-index] [-q|--quiet] [-u|--include-untracked] [-a|--all] [-m|--message <message>] Let's change all the usage arrays which use such continued usage output via "\n"-embedding to be like builtin/stash.c. This makes the output worse temporarily, but in a subsequent change I'll improve the usage_with_options_internal() to take this into account, at which point all of the strings being changed here will emit prettier output. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12gc: remove unused launchctl_get_uid() callÆvar Arnfjörð Bjarmason1-7/+1
When the launchctl_boot_plist() function was added in a16eb6b1ff3 (maintenance: skip bootout/bootstrap when plist is registered, 2021-08-24), an unused call to launchctl_get_uid() was added along with it. That call appears to have been copy/pasted from launchctl_boot_plist(). Since we can remove that, we can also get rid of the "result" variable, whose only purpose was allow for the free() between its assignment and the return. That pattern also appears to have been copy/pasted from launchctl_boot_plist(). As the patch shows the returned value from launchctl_get_uid() wasn't used at all in this function. The launchctl_get_uid() function itself just calls xstrfmt() and getuid(), neither of which have any subtle global side-effects, so this removal is safe. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12test-tool run-command: fix flip-flop init patternÆvar Arnfjörð Bjarmason1-4/+1
In be5d88e1128 (test-tool run-command: learn to run (parts of) the testsuite, 2019-10-04) an init pattern was added that would use TESTSUITE_INIT, but then promptly memset() everything back to 0. We'd then set the "dup" on the two string lists. Our setting of "next" to "-1" thus did nothing, we'd reset it to "0" before using it. Let's set it to "0" instead, and trust the "STRING_LIST_INIT_DUP" to set "strdup_strings" appropriately for us. Note that while we compile this code, there's no in-tree user for the "testsuite" target being modified here anymore, see the discussion at and around <nycvar.QRO.7.76.6.2109091323150.59@tvgsbejvaqbjf.bet>[1]. 1. https://lore.kernel.org/git/nycvar.QRO.7.76.6.2109091323150.59@tvgsbejvaqbjf.bet/ Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12tests: remove leftover untracked filesElijah Newren12-4/+18
Remove untracked files that are unwanted after they are done being used. While the set of cases in this patch is certainly far from comprehensive, it was motivated by some work to see what the fallout would be if we were to make the removal of untracked files as a side effect of other commands into an error. Some cases were a bit more involved than the testcase changes included in this patch, but the ones included here represent the simple cases. While this patch is not that important since we are not changing the behavior of those other commands into an error in the near term, I thought these changes were useful anyway as an explicit documentation of the intent that these untracked files are no longer useful. Acked-by: Johannes Schindelin <Johannes.Schindelin@gmx.de> Acked-by: Derrick Stolee <stolee@gmail.com> Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12strvec: use size_t to store nr and allocJeff King1-2/+2
We converted argv_array (which later became strvec) to use size_t in 819f0e76b1 (argv-array: use size_t for count and alloc, 2020-07-28) in order to avoid the possibility of integer overflow. But later, commit d70a9eb611 (strvec: rename struct fields, 2020-07-28) accidentally converted these back to ints! Those two commits were part of the same patch series. I'm pretty sure what happened is that they were originally written in the opposite order and then cleaned up and re-ordered during an interactive rebase. And when resolving the inevitable conflict, I mistakenly took the "rename" patch completely, accidentally dropping the type change. We can correct it now; better late than never. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12compression: drop write-only core_compression_* variablesRené Scharfe3-5/+0
Since 8de7eeb54b (compression: unify pack.compression configuration parsing, 2016-11-15) the variables core_compression_level and core_compression_seen are only set, but never read. Remove them. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12test-lib: remove unused $_x40 and $_z40 variablesÆvar Arnfjörð Bjarmason1-4/+2
These two have fallen out of use with the SHA-256 migration. The last use of $_x40 was removed in fc7e73d7ef (t4013: improve diff-post-processor logic, 2020-08-21) and The last use of $_z40 was removed in 7a868c51c2 (t5562: use $ZERO_OID, 2019-12-21), but it was then needlessly refactored to be hash-agnostic in 192b517589 (t: use hash-specific lookup tables to define test constants, 2020-02-22). We can just remove it. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12git-bisect: remove unused SHA-1 $x40 shell variableÆvar Arnfjörð Bjarmason1-2/+0
This variable was last used in code removed in 06f5608c14 (bisect--helper: `bisect_start` shell function partially in C, 2019-01-02). Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12git-sh-setup: remove unused "pull with rebase" messageÆvar Arnfjörð Bjarmason1-6/+0
Remove the "pull with rebase" message previously used by the git-pull.sh script, which was removed in 49eb8d39c78 (Remove contrib/examples/*, 2018-03-25). Even if some out-of-tree user copy/pasted the old git-pull.sh code, and relied on passing it a "pull with rebase" argument, we'll fall back on the "*" case here, they just won't get the "pull with rebase" part of their message translated. I don't think it's likely that anyone out-of-tree relied on that, but I'm being conservative here per the discussion that can be found upthread of [1]. 1. https://lore.kernel.org/git/87tuiwjfvi.fsf@evledraar.gmail.com/ Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12git-submodule: remove unused is_zero_oid() functionÆvar Arnfjörð Bjarmason1-5/+0
The is_zero_oid() function in git-submodule.sh has not been used since e83e3333b57 (submodule: port submodule subcommand 'summary' from shell to C, 2020-08-13), so we can remove it. This was the last user of the sane_egrep() function in git-sh-setup.sh. I'm not removing it in case some out-of-tree user relied on it. Per the discussion that can be found upthread of [1]. 1. https://lore.kernel.org/git/87tuiwjfvi.fsf@evledraar.gmail.com/ Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12packfile: use oidset for bad objectsRené Scharfe3-31/+11
Store the object ID of broken pack entries in an oidset instead of keeping only their hashes in an unsorted array. The resulting code is shorter and easier to read. It also handles the (hopefully) very rare case of having a high number of bad objects better. Helped-by: Jeff King <peff@peff.net> Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12packfile: convert has_packed_and_bad() to object_idRené Scharfe3-4/+4
The single caller has a full object ID, so pass it on instead of just its hash member. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12packfile: convert mark_bad_packed_object() to object_idRené Scharfe3-8/+8
All callers have full object IDs, so pass them on instead of just their hash member. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12midx: inline nth_midxed_pack_entry()René Scharfe1-20/+9
fill_midx_entry() finds the position of an object ID and passes it to nth_midxed_pack_entry(), which uses the position to look up the object ID for its own purposes. Inline the latter into the former to avoid that lookup. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12oidset: make oidset_size() an inline functionRené Scharfe2-6/+4
oidset_size() just reads a single word from memory and returns it. Avoid the function call overhead for this trivial operation by turning it into an inline function. While we're at it, declare its parameter const to allow it to be used on read-only oidsets. Suggested-by: Jeff King <peff@peff.net> Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12INSTALL: reword and copy-edit the "libcurl" sectionÆvar Arnfjörð Bjarmason1-5/+5
Make the "libcurl" section shorter and more to the point, this is mostly based on suggestions from [1]. 1. https://lore.kernel.org/git/YTtxcBdF2VQdWp5C@coredump.intra.peff.net/ Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-12INSTALL: don't mention the "curl" executable at allÆvar Arnfjörð Bjarmason1-2/+1
In 1d53f90ed97 (The "curl" executable is no longer required, 2008-06-15) the wording for requiring curl(1) was changed to the current "you might also want...". Mentioning the "curl" executable at all is just confusing, someone building git might want to use it to debug things, but they might also just use wget(1) or some other http client. The "curl" executable has the advantage that you might be able to e.g. reproduce a bug in git's usage of libcurl with it, but anyone going to those extents is unlikely to be aided by this note in INSTALL. Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-10help: correct the usage string in -h and documentationÆvar Arnfjörð Bjarmason2-2/+3
Clarify the usage string in the documentation so we group e.g. -i and --info, and add the missing short options to the "-h" output. The alignment of the second line is off now, but will be fixed with another series of mine[1]. In the meantime let's just assume that fix will make it in eventually for the purposes of this patch, if it's misaligned for a bit it doesn't matter much. 1. https://lore.kernel.org/git/cover-0.2-00000000000-20210901T110917Z-avarab@gmail.com Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-10am: fix incorrect exit status on am fail to abortElijah Newren2-2/+3
Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-10t4151: add a few am --abort testsElijah Newren1-0/+39
Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-10git-am.txt: clarify --abort behaviorElijah Newren1-0/+2
Both Johannes and I assumed (perhaps due to familiarity with rebase) that am --abort would return the user to a clean state. However, since am, unlike rebase, is intended to be used within a dirty working tree, --abort will only clean the files involved in the am operation. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-10stash: restore untracked files AFTER restoring tracked filesElijah Newren2-5/+5
If a user deletes a file and places a directory of untracked files there, then stashes all these changes, the untracked directory of files cannot be restored until after the corresponding file in the way is removed. So, restore changes to tracked files before restoring untracked files. There is no counterpart problem to worry about with the user deleting an untracked file and then add a tracked one in its place. Git does not track untracked files, and so will not know the untracked file was deleted, and thus won't be able to stash the removal of that file. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-10stash: avoid feeding directories to update-indexElijah Newren2-1/+15
When a file is removed from the cache, but there is a file of the same name present in the working directory, we would normally treat that file in the working directory as untracked. However, in the case of stash, doing that would prevent a simple 'git stash push', because the untracked file would be in the way of restoring the deleted file. git stash, however, blindly assumes that whatever is in the working directory for a deleted file is wanted and passes that path along to update-index. That causes problems when the working directory contains a directory with the same name as the deleted file. Add some code for this special case that will avoid passing directory names to update-index. Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-10t3903: document a pair of directory/file bugsElijah Newren1-0/+58
There are three tests here, because the second bug is documented with two tests: a file -> directory change and a directory -> file change. The reason for the two tests is just to verify that both are indeed broken but that both will be fixed by the same simple change (which will be provided in a subsequent patch). Signed-off-by: Elijah Newren <newren@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-10docs/protocol-v2: point readers transport config discussionJeff King1-1/+7
We recently added tips for server admins to configure various transports to support v2's GIT_PROTOCOL variable. While the protocol-v2 document is pretty technical and not of interest to most admins, it may be a starting point for them to figure out how to turn on v2. Let's put some pointers from there to the other documentation. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-10docs/git: discuss server-side config for GIT_PROTOCOLJeff King2-0/+23
The v2 protocol requires that the GIT_PROTOCOL environment variable gets passed around, but we don't have any documentation describing how this is supposed to work. In particular, we need to note what server admins might need to configure to make things work. The definition of the GIT_PROTOCOL variable is probably the best place for this, since: - we deal with multiple transports (ssh, http, etc). Transport-specific documentation (like the git-http-backend bits added in the previous commit) are helpful for those transports, but this gives a broader overview. Plus we do not have a specific transport endpoint program for ssh, so this is a reasonable place to mention it. - the server side of the protocol involves multiple programs. For now, upload-pack is the only endpoint which uses GIT_PROTOCOL, but that will likely expand in the future. We're better off with a central discussion of what the server admin might need to do. However, for discoverability, this patch adds a pointer from upload-pack's documentation. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-10docs/http-backend: mention v2 protocolJeff King1-1/+25
Historically there was a little bit of configuration needed at the webserver level in order to get the client's v2 protocol probes to Git. But when we introduced the v2 protocol, we never documented these. As of the previous commit, this should mostly work out of the box without any explicit configuration. But it's worth documenting this to make it clear how we expect it to work, especially in the face of webservers which don't provide all headers over the CGI interface. Or anybody who runs across this documentation but has an older version of Git (or _used_ to have an older version, and wonders why they still have a SetEnvIf line in their Apache config and whether it's still necessary). Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-10http-backend: handle HTTP_GIT_PROTOCOL CGI variableJeff King2-2/+4
When a client requests the v2 protocol over HTTP, they set the Git-Protocol header. Webservers will generally make that available to our CGI as HTTP_GIT_PROTOCOL in the environment. However, that's not sufficient for upload-pack, etc, to respect it; they look in GIT_PROTOCOL (without the HTTP_ prefix). Either the webserver or the CGI is responsible for relaying that HTTP header into the GIT_PROTOCOL variable. Traditionally, our tests have configured the webserver to do so, but that's a burden on the server admin. We can make this work out of the box by having the http-backend CGI copy the contents of HTTP_GIT_PROTOCOL to GIT_PROTOCOL. There are no new tests here. By removing the SetEnvIf line from our test Apache config, we're now relying on this behavior of http-backend to trigger the v2 protocol there (and there are numerous tests that fail if this doesn't work). There is one subtlety here: we copy HTTP_GIT_PROTOCOL only if there is no existing GIT_PROTOCOL variable. That leaves the webserver admin free to override the client's decision if they choose. This is unlikely to be useful in practice, but is more flexible. And indeed, it allows the v2-to-v0 fallback test added in the previous commit to continue working. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-10t5551: test v2-to-v0 http protocol fallbackJeff King2-0/+14
Since we use the v2 protocol by default, the connection of a v2 client to a v2 server is well covered by the test suite. And with the GIT_TEST_PROTOCOL_VERSION knob, we can easily test a v0 client connecting to a v2-aware server (which will then just speak v0). But we have no regular tests that a v2 client, when encountering a non-v2-aware server, will correctly fall back to using v0. In theory this is a job for the cross-version tests in t/interop, but: - they cover only git:// and file:// clones - they are not part of the usual test suite, so nobody ever runs them anyway Since using v2 over http requires configuring the web server to pass along the Git-Protocol header, we can easily create a situation where the server does not respect the v2 probe, and the conversation falls back to v0. This works just fine. This new test is not about fixing any particular bug, but just making sure that the system works (and continues to work) as expected. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-10index-pack: use xopen in init_threadRené Scharfe2-8/+9
Support an arbitrary file descriptor expression in the semantic patch for replacing open+die_errno with xopen, not just an identifier, and apply it. This makes the error message at the single affected place more consistent and reduces code duplication. Signed-off-by: René Scharfe <l.s.r@web.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-10ssh signing: test that gpg fails for unknown keysFabian Stelzer1-1/+28
Test that verify-commit/tag will fail when a gpg key is completely unknown. To do this we have to generate a key, use it for a signature and delete it from our keyring aferwards completely. Signed-off-by: Fabian Stelzer <fs@gigacodes.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-10ssh signing: tests for logs, tags & push certsFabian Stelzer3-0/+285
Signed-off-by: Fabian Stelzer <fs@gigacodes.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2021-09-10ssh signing: duplicate t7510 tests for commitsFabian Stelzer1-0/+398
Signed-off-by: Fabian Stelzer <fs@gigacodes.de> Signed-off-by: Junio C Hamano <gitster@pobox.com>