git/log-tree.c, branch v2.18.2

Merge branch 'jk/snprintf-truncation'

2018-05-30T12:51:28Z

Avoid unchecked snprintf() to make future code auditing easier. * jk/snprintf-truncation: fmt_with_err: add a comment that truncation is OK shorten_unambiguous_ref: use xsnprintf fsmonitor: use internal argv_array of struct child_process log_write_email_headers: use strbufs http: use strbufs instead of fixed buffers

Merge branch 'bc/format-patch-cover-no-attach'

2018-05-23T05:38:21Z

"git format-patch --cover --attach" created a broken MIME multipart message for the cover letter, which has been fixed by keeping the cover letter as plain text file. * bc/format-patch-cover-no-attach: format-patch: make cover letters always text/plain

Merge branch 'js/deprecate-grafts'

2018-05-23T05:38:17Z

The functionality of "$GIT_DIR/info/grafts" has been superseded by the "refs/replace/" mechanism for some time now, but the internal code had support for it in many places, which has been cleaned up in order to drop support of the "grafts" mechanism. * js/deprecate-grafts: Remove obsolete script to convert grafts to replace refs technical/shallow: describe why shallow cannot use replace refs technical/shallow: stop referring to grafts filter-branch: stop suggesting to use grafts Deprecate support for .git/info/grafts Add a test for `git replace --convert-graft-file` replace: introduce --convert-graft-file replace: prepare create_graft() for converting graft files wholesale replace: "libify" create_graft() and callees replace: avoid using die() to indicate a bug commit: Let the callback of for_each_mergetag return on error argv_array: offer to split a string by whitespace

Merge branch 'ds/lazy-load-trees'

2018-05-23T05:38:13Z

The code has been taught to use the duplicated information stored in the commit-graph file to learn the tree object name for a commit to avoid opening and parsing the commit object when it makes sense to do so. * ds/lazy-load-trees: coccinelle: avoid wrong transformation suggestions from commit.cocci commit-graph: lazy-load trees for commits treewide: replace maybe_tree with accessor methods commit: create get_commit_tree() method treewide: rename tree to maybe_tree

log_write_email_headers: use strbufs

2018-05-21T00:54:34Z

When we write a MIME attachment, we write the mime headers into fixed-size buffers. These are likely to be big enough in practice, but technically the input could be arbitrarily large (e.g., if the caller provided a lot of content in the extra_headers string), in which case we'd quietly truncate it and generate bogus output. Let's convert these buffers to strbufs. The memory ownership here is a bit funny. The original fixed buffers were static, and we merely pass out pointers to them to be used by the caller (and in one case, we even just stuff our value into the opt->diffopt.stat_sep value). Ideally we'd actually pass back heap buffers, and the caller would be responsible for freeing them. This patch punts on that cleanup for now, and instead just marks the strbufs as static. That means we keep ownership in this function, making it not a complete leak. This also takes us one step closer to fixing it in the long term (since we can eventually use strbuf_detach() to hand ownership to the caller, once it's ready). Signed-off-by: Jeff King Signed-off-by: Junio C Hamano

format-patch: make cover letters always text/plain

2018-05-02T03:55:00Z

When formatting a series of patches using --attach and --cover-letter, the cover letter lacks the closing MIME boundary, violating RFC 2046. Certain clients, such as Thunderbird, discard the message body in such a case. Since the cover letter is just one part and sending it as multipart/mixed is not very useful, always emit it as text/plain, avoiding the boundary problem altogether. Reported-by: Patrick Hemmer Signed-off-by: brian m. carlson Signed-off-by: Junio C Hamano

commit: Let the callback of for_each_mergetag return on error

2018-04-26T03:52:57Z

This is yet another patch to be filed under the keyword "libification". There is one subtle change in behavior here, where a `git log` that has been asked to show the mergetags would now stop reporting the mergetags upon the first failure, whereas previously, it would have continued to the next mergetag, if any. In practice, that change should not matter, as it is 1) uncommon to perform octopus merges using multiple tags as merge heads, and 2) when the user asks to be shown those tags, they really should be there. Signed-off-by: Johannes Schindelin Signed-off-by: Junio C Hamano

treewide: replace maybe_tree with accessor methods

2018-04-11T01:47:16Z

In anticipation of making trees load lazily, create a Coccinelle script (contrib/coccinelle/commit.cocci) to ensure that all references to the 'maybe_tree' member of struct commit are either mutations or accesses through get_commit_tree() or get_commit_tree_oid(). Apply the Coccinelle script to create the rest of the patch. Signed-off-by: Derrick Stolee Signed-off-by: Junio C Hamano

treewide: rename tree to maybe_tree

2018-04-11T01:47:16Z

Using the commit-graph file to walk commit history removes the large cost of parsing commits during the walk. This exposes a performance issue: lookup_tree() takes a large portion of the computation time, even when Git never uses those trees. In anticipation of lazy-loading these trees, rename the 'tree' member of struct commit to 'maybe_tree'. This serves two purposes: it hints at the future role of possibly being NULL even if the commit has a valid tree, and it allows for unambiguous transformation from simple member access (i.e. commit->maybe_tree) to method access. Signed-off-by: Derrick Stolee Signed-off-by: Junio C Hamano

Merge branch 'bw/c-plus-plus' into ds/lazy-load-trees

2018-04-11T01:46:32Z

* bw/c-plus-plus: (37 commits) replace: rename 'new' variables trailer: rename 'template' variables tempfile: rename 'template' variables wrapper: rename 'template' variables environment: rename 'namespace' variables diff: rename 'template' variables environment: rename 'template' variables init-db: rename 'template' variables unpack-trees: rename 'new' variables trailer: rename 'new' variables submodule: rename 'new' variables split-index: rename 'new' variables remote: rename 'new' variables ref-filter: rename 'new' variables read-cache: rename 'new' variables line-log: rename 'new' variables imap-send: rename 'new' variables http: rename 'new' variables entry: rename 'new' variables diffcore-delta: rename 'new' variables ...