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2015-05-29t5520: test work tree fast-forward when fetch updates headLibravatar Paul Tan1-0/+21
Since b10ac50 (Fix pulling into the same branch., 2005-08-25), git-pull, upon detecting that git-fetch updated the current head, will fast-forward the working tree to the updated head commit. Implement tests to ensure that the fast-forward occurs in such a case, as well as to ensure that the user-friendly advice is printed upon failure. Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-29t5520: test for failure if index has unresolved entriesLibravatar Paul Tan1-0/+19
Commit d38a30d (Be more user-friendly when refusing to do something because of conflict., 2010-01-12) introduced code paths to git-pull which will error out with user-friendly advices if the user is in the middle of a merge or has unmerged files. Implement tests to ensure that git-pull will not run, and will print these advices, if the user is in the middle of a merge or has unmerged files in the index. Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-18t5520: test no merge candidates casesLibravatar Paul Tan1-0/+55
a8c9bef (pull: improve advice for unconfigured error case, 2009-10-05) fully established the current advices given by git-pull for the different cases where git-fetch will not have anything marked for merge: 1. We fetched from a specific remote, and a refspec was given, but it ended up not fetching anything. This is usually because the user provided a wildcard refspec which had no matches on the remote end. 2. We fetched from a non-default remote, but didn't specify a branch to merge. We can't use the configured one because it applies to the default remote, and thus the user must specify the branches to merge. 3. We fetched from the branch's or repo's default remote, but: a. We are not on a branch, so there will never be a configured branch to merge with. b. We are on a branch, but there is no configured branch to merge with. 4. We fetched from the branch's or repo's default remote, but the configured branch to merge didn't get fetched (either it doesn't exist, or wasn't part of the configured fetch refspec) Implement tests for the above 5 cases to ensure that the correct code paths are triggered for each of these cases. Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-05-18t5520: prevent field splitting in content comparisonsLibravatar Paul Tan1-35/+35
Many tests in t5520 used the following to test the contents of files: test `cat file` = expected or test $(cat file) = expected These 2 forms, however, will be affected by field splitting and, depending on the value of $IFS, may be split into multiple arguments, making the test fail in mysterious ways. Replace the above 2 forms with: test "$(cat file)" = expected as quoting the command substitution will prevent field splitting. Signed-off-by: Paul Tan <pyokagan@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-29merge: deprecate 'git merge <message> HEAD <commit>' syntaxLibravatar Junio C Hamano7-9/+9
We had this in "git merge" manual for eternity: 'git merge' <msg> HEAD <commit>... [This] syntax (<msg> `HEAD` <commit>...) is supported for historical reasons. Do not use it from the command line or in new scripts. It is the same as `git merge -m <msg> <commit>...`. With the update to "git merge" to make it understand what is recorded in FETCH_HEAD directly, including Octopus merge cases, we now can rewrite the use of this syntax in "git pull" with a simple "git merge FETCH_HEAD". Also there are quite a few fallouts in the test scripts, and it turns out that "git cvsimport" also uses this old syntax to record a merge. Judging from this result, I would not be surprised if dropping the support of the old syntax broke scripts people have written and been relying on for the past ten years. But at least we can start the deprecation process by throwing a warning message when the syntax is used. With luck, we might be able to drop the support in a few years. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-29merge: handle FETCH_HEAD internallyLibravatar Junio C Hamano3-39/+81
The collect_parents() function now is responsible for 1. parsing the commits given on the command line into a list of commits to be merged; 2. filtering these parents into independent ones; and 3. optionally calling fmt_merge_msg() via prepare_merge_message() to prepare an auto-generated merge log message, using fake contents that FETCH_HEAD would have had if these commits were fetched from the current repository with "git pull . $args..." Make "git merge FETCH_HEAD" to be the same as the traditional git merge "$(git fmt-merge-msg <.git/FETCH_HEAD)" $commits invocation of the command in "git pull", where $commits are the ones that appear in FETCH_HEAD that are not marked as not-for-merge, by making it do a bit more, specifically: - noticing "FETCH_HEAD" is the only "commit" on the command line and picking the commits that are not marked as not-for-merge as the list of commits to be merged (substitute for step #1 above); - letting the resulting list fed to step #2 above; - doing the step #3 above, using the contents of the FETCH_HEAD instead of fake contents crafted from the list of commits parsed in the step #1 above. Note that this changes the semantics. "git merge FETCH_HEAD" has always behaved as if the first commit in the FETCH_HEAD file were directly specified on the command line, creating a two-way merge whose auto-generated merge log said "merge commit xyz". With this change, if the previous fetch was to grab multiple branches (e.g. "git fetch $there topic-a topic-b"), the new world order is to create an octopus, behaving as if "git pull $there topic-a topic-b" were run. This is a deliberate change to make that happen, and can be seen in the changes to t3033 tests. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-29merge: decide if we auto-generate the message early in collect_parents()Libravatar Junio C Hamano1-7/+9
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-29merge: make collect_parents() auto-generate the merge messageLibravatar Junio C Hamano1-14/+22
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-29merge: extract prepare_merge_message() logic outLibravatar Junio C Hamano1-11/+15
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-29merge: narrow scope of merge_namesLibravatar Junio C Hamano1-4/+7
In order to pass the list of parents to fmt_merge_msg(), cmd_merge() uses this strbuf to create something that look like FETCH_HEAD that describes commits that are being merged. This is necessary only when we are creating the merge commit message ourselves, but was done unconditionally. Move the variable and the logic to populate it to confine them in a block that needs them. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-29merge: split reduce_parents() out of collect_parents()Libravatar Junio C Hamano1-16/+25
The latter does two separate things: - Parse the list of commits on the command line, and formulate the list of commits to be merged (including the current HEAD); - Compute the list of parents to be recorded in the resulting merge commit. Split the latter into a separate helper function, so that we can later supply the list commits to be merged from a different source (namely, FETCH_HEAD). Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-29merge: clarify collect_parents() logicLibravatar Junio C Hamano1-2/+11
Clarify this small function in three ways. - The function initially collects all commits to be merged into a commit_list "remoteheads"; the "remotes" pointer always points at the tail of this list (either the remoteheads variable itself, or the ->next slot of the element at the end of the list) to help elongate the list by repeated calls to commit_list_insert(). Because the new element appended by commit_list_insert() will always have its ->next slot NULLed out, there is no need for us to assign NULL to *remotes to terminate the list at the end. - The variable "head_subsumed" always confused me every time I read this code. What is happening here is that we inspect what the caller told us to merge (including the current HEAD) and come up with the list of parents to be recorded for the resulting merge commit, omitting commits that are ancestor of other commits. This filtering may remove the current HEAD from the resulting parent list---and we signal that fact with this variable, so that we can later record it as the first parent when "--no-ff" is in effect. - The "parents" list is created for this function by reduce_heads() and was not deallocated after its use, even though the loop control was written in such a way to allow us to do so by taking the "next" element in a separate variable so that it can be used in the next-step part of the loop control. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-29merge: small leakfix and code simplificationLibravatar Junio C Hamano1-2/+2
When parsing a merged object name like "foo~20" to formulate a merge summary "Merge branch foo (early part)", a temporary strbuf is used, but we forgot to deallocate it when we failed to find the named branch. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-29merge: do not check argc to determine number of remote headsLibravatar Junio C Hamano1-3/+2
To reject merging multiple commits into an unborn branch, we check argc, thinking that collect_parents() that reads the remaining command line arguments from <argc, argv> will give us the same number of commits as its input, i.e. argc. Because what we really care about is the number of commits, let the function run and then make sure it returns only one commit instead. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-29merge: clarify "pulling into void" special caseLibravatar Junio C Hamano1-17/+18
Instead of having it as one of the three if/elseif/.. case arms, test the condition and handle this special case upfront. This makes it easier to follow the flow of logic. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-29t5520: test pulling an octopus into an unborn branchLibravatar Junio C Hamano1-0/+9
The code comment for "git merge" in builtin/merge.c, we say If the merged head is a valid one there is no reason to forbid "git merge" into a branch yet to be born. We do the same for "git pull". and t5520 does have an existing test for that behaviour. However, there was no test to make sure that 'git pull' to pull multiple branches into an unborn branch must fail. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-29t5520: style fixesLibravatar Junio C Hamano1-16/+6
Fix style funnies in early part of this test script that checks "git pull" into an unborn branch. The primary change is that 'chdir' to a newly created empty test repository is now protected by being done in a subshell to make it more robust without having to chdir back to the original place. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-29merge: simplify code flowLibravatar Junio C Hamano1-8/+8
One of the first things cmd_merge() does is to see if the "--abort" option is given and run "reset --merge" and exit. When the control reaches this point, we know "--abort" was not given. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-04-29merge: test the top-level merge driverLibravatar Junio C Hamano1-0/+136
We seem to have tests for specific merge strategy backends (e.g. recursive), but not much test coverage for the "git merge" itself. As I am planning to update the semantics of merging "FETCH_HEAD" in such a way that these two git pull . topic_a topic_b... vs. git fetch . topic_a topic_b... git merge FETCH_HEAD are truly equivalent, let me add a few test cases to cover the tricky ones. Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-01-12Git 2.2.2Libravatar Junio C Hamano3-2/+33
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2015-01-12Merge branch 'jk/read-packed-refs-without-path-max' into maintLibravatar Junio C Hamano1-21/+25
* jk/read-packed-refs-without-path-max: read_packed_refs: use skip_prefix instead of static array read_packed_refs: pass strbuf to parse_ref_line read_packed_refs: use a strbuf for reading lines
2015-01-12Merge branch 'mg/add-ignore-errors' into maintLibravatar Junio C Hamano2-2/+8
* mg/add-ignore-errors: add: ignore only ignored files
2015-01-12Merge branch 'mh/find-uniq-abbrev' into maintLibravatar Junio C Hamano1-1/+1
* mh/find-uniq-abbrev: sha1_name: avoid unnecessary sha1 lookup in find_unique_abbrev
2015-01-12Merge branch 'jk/approxidate-avoid-y-d-m-over-future-dates' into maintLibravatar Junio C Hamano2-9/+15
* jk/approxidate-avoid-y-d-m-over-future-dates: approxidate: allow ISO-like dates far in the future pass TIME_DATE_NOW to approxidate future-check
2015-01-12Merge branch 'rw/apply-does-not-take-ignore-date' into maintLibravatar Junio C Hamano1-1/+0
* rw/apply-does-not-take-ignore-date: git-am.txt: --ignore-date flag is not passed to git-apply
2015-01-12Merge branch 'jk/for-each-reflog-ent-reverse' into maintLibravatar Junio C Hamano2-12/+67
* jk/for-each-reflog-ent-reverse: for_each_reflog_ent_reverse: turn leftover check into assertion for_each_reflog_ent_reverse: fix newlines on block boundaries
2015-01-07Merge branch 'maint-2.1' into maintLibravatar Junio C Hamano2-12/+35
* maint-2.1: is_hfs_dotgit: loosen over-eager match of \u{..47}
2015-01-07Merge branch 'maint-2.0' into maint-2.1Libravatar Junio C Hamano2-12/+35
* maint-2.0: is_hfs_dotgit: loosen over-eager match of \u{..47}
2015-01-07Merge branch 'maint-1.9' into maint-2.0Libravatar Junio C Hamano2-12/+35
* maint-1.9: is_hfs_dotgit: loosen over-eager match of \u{..47}
2015-01-07Merge branch 'maint-1.8.5' into maint-1.9Libravatar Junio C Hamano2-12/+35
* maint-1.8.5: is_hfs_dotgit: loosen over-eager match of \u{..47}
2015-01-07Merge branch 'jk/dotgit-case-maint-1.8.5' into maint-1.8.5Libravatar Junio C Hamano2-12/+35
* jk/dotgit-case-maint-1.8.5: is_hfs_dotgit: loosen over-eager match of \u{..47}
2014-12-29is_hfs_dotgit: loosen over-eager match of \u{..47}Libravatar Jeff King2-12/+35
Our is_hfs_dotgit function relies on the hackily-implemented next_hfs_char to give us the next character that an HFS+ filename comparison would look at. It's hacky because it doesn't implement the full case-folding table of HFS+; it gives us just enough to see if the path matches ".git". At the end of next_hfs_char, we use tolower() to convert our 32-bit code point to lowercase. Our tolower() implementation only takes an 8-bit char, though; it throws away the upper 24 bits. This means we can't have any false negatives for is_hfs_dotgit. We only care about matching 7-bit ASCII characters in ".git", and we will correctly process 'G' or 'g'. However, we _can_ have false positives. Because we throw away the upper bits, code point \u{0147} (for example) will look like 'G' and get downcased to 'g'. It's not known whether a sequence of code points whose truncation ends up as ".git" is meaningful in any language, but it does not hurt to be more accurate here. We can just pass out the full 32-bit code point, and compare it manually to the upper and lowercase characters we care about. Signed-off-by: Jeff King <peff@peff.net> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-22Prepare for 2.2.2Libravatar Junio C Hamano2-1/+34
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-22Merge branch 'jk/rebuild-perl-scripts-with-no-perl-seting-change' into maintLibravatar Junio C Hamano1-4/+10
The build procedure did not bother fixing perl and python scripts when NO_PERL and NO_PYTHON build-time configuration changed. * jk/rebuild-perl-scripts-with-no-perl-seting-change: Makefile: have python scripts depend on NO_PYTHON setting Makefile: simplify by using SCRIPT_{PERL,SH}_GEN macros Makefile: have perl scripts depend on NO_PERL setting
2014-12-22Merge branch 'jk/no-perl-tests' into maintLibravatar Junio C Hamano3-4/+4
Some tests that depend on perl lacked PERL prerequisite to protect them, breaking build with NO_PERL configuration. * jk/no-perl-tests: t960[34]: mark cvsimport tests as requiring perl t0090: mark add-interactive test with PERL prerequisite
2014-12-22Merge branch 'po/everyday-doc' into maintLibravatar Junio C Hamano1-1/+1
"Everyday" document had a broken link. * po/everyday-doc: Documentation: change "gitlink" typo in git-push
2014-12-22Merge branch 'jk/push-simple' into maintLibravatar Junio C Hamano2-6/+34
Git 2.0 was supposed to make the "simple" mode for the default of "git push", but it didn't. * jk/push-simple: push: truly use "simple" as default, not "upstream"
2014-12-22Merge branch 'mh/config-flip-xbit-back-after-checking' into maintLibravatar Junio C Hamano2-1/+9
"git init" (hence "git clone") initialized the per-repository configuration file .git/config with x-bit by mistake. * mh/config-flip-xbit-back-after-checking: create_default_files(): don't set u+x bit on $GIT_DIR/config
2014-12-22Merge branch 'jk/gitweb-with-newer-cgi-multi-param' into maintLibravatar Junio C Hamano1-1/+5
"gitweb" used to depend on a behaviour that was deprecated by recent CGI.pm. * jk/gitweb-with-newer-cgi-multi-param: gitweb: hack around CGI's list-context param() handling
2014-12-22Merge branch 'rs/receive-pack-use-labs' into maintLibravatar Junio C Hamano1-1/+1
* rs/receive-pack-use-labs: use labs() for variables of type long instead of abs()
2014-12-22Merge branch 'rs/maint-config-use-labs' into maintLibravatar Junio C Hamano1-2/+2
* rs/maint-config-use-labs: use labs() for variables of type long instead of abs()
2014-12-22Merge branch 'js/windows-open-eisdir-error' into maintLibravatar Junio C Hamano1-1/+1
open() emulated on Windows platforms did not give EISDIR upon an attempt to open a directory for writing. * js/windows-open-eisdir-error: Windows: correct detection of EISDIR in mingw_open()
2014-12-22Merge branch 'jk/colors-fix' into maintLibravatar Junio C Hamano3-14/+25
"git config --get-color" did not parse its command line arguments carefully. * jk/colors-fix: t4026: test "normal" color config: fix parsing of "git config --get-color some.key -1" docs: describe ANSI 256-color mode
2014-12-22Merge branch 'jk/checkout-from-tree' into maintLibravatar Junio C Hamano2-0/+35
"git checkout $treeish $path", when $path in the index and the working tree already matched what is in $treeish at the $path, still overwrote the $path unnecessarily. * jk/checkout-from-tree: checkout $tree: do not throw away unchanged index entries
2014-12-22clean: typofixLibravatar Alexander Kuleshov1-1/+1
Signed-off-by: Alexander Kuleshov <kuleshovmail@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-17Git 2.2.1Libravatar Junio C Hamano4-3/+38
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-17Sync with v2.1.4Libravatar Junio C Hamano19-42/+406
* maint-2.1: Git 2.1.4 Git 2.0.5 Git 1.9.5 Git 1.8.5.6 fsck: complain about NTFS ".git" aliases in trees read-cache: optionally disallow NTFS .git variants path: add is_ntfs_dotgit() helper fsck: complain about HFS+ ".git" aliases in trees read-cache: optionally disallow HFS+ .git variants utf8: add is_hfs_dotgit() helper fsck: notice .git case-insensitively t1450: refactor ".", "..", and ".git" fsck tests verify_dotfile(): reject .git case-insensitively read-tree: add tests for confusing paths like ".." and ".git" unpack-trees: propagate errors adding entries to the index
2014-12-17Git 2.1.4Libravatar Junio C Hamano4-3/+38
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2014-12-17Sync with v2.0.5Libravatar Junio C Hamano18-41/+370
* maint-2.0: Git 2.0.5 Git 1.9.5 Git 1.8.5.6 fsck: complain about NTFS ".git" aliases in trees read-cache: optionally disallow NTFS .git variants path: add is_ntfs_dotgit() helper fsck: complain about HFS+ ".git" aliases in trees read-cache: optionally disallow HFS+ .git variants utf8: add is_hfs_dotgit() helper fsck: notice .git case-insensitively t1450: refactor ".", "..", and ".git" fsck tests verify_dotfile(): reject .git case-insensitively read-tree: add tests for confusing paths like ".." and ".git" unpack-trees: propagate errors adding entries to the index
2014-12-17Git 2.0.5Libravatar Junio C Hamano4-3/+38
Signed-off-by: Junio C Hamano <gitster@pobox.com>