Commit Graph

307 Commits

Author SHA1 Message Date
Emma Brooks
19d097e3d7 format-patch: teach --no-encode-email-headers
When commit subjects or authors have non-ASCII characters, git
format-patch Q-encodes them so they can be safely sent over email.
However, if the patch transfer method is something other than email (web
review tools, sneakernet), this only serves to make the patch metadata
harder to read without first applying it (unless you can decode RFC 2047
in your head). git am as well as some email software supports
non-Q-encoded mail as described in RFC 6531.

Add --[no-]encode-email-headers and format.encodeEmailHeaders to let the
user control this behavior.

Signed-off-by: Emma Brooks <me@pluvano.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-04-07 22:37:18 -07:00
Junio C Hamano
9f3f38769d Merge branch 'rs/strbuf-insertstr'
Code clean-up.

* rs/strbuf-insertstr:
  mailinfo: don't insert header prefix for handle_content_type()
  strbuf: add and use strbuf_insertstr()
2020-02-17 13:22:17 -08:00
René Scharfe
a91cc7fad0 strbuf: add and use strbuf_insertstr()
Add a function for inserting a C string into a strbuf.  Use it
throughout the source to get rid of magic string length constants and
explicit strlen() calls.

Like strbuf_addstr(), implement it as an inline function to avoid the
implicit strlen() calls to cause runtime overhead.

Helped-by: Taylor Blau <me@ttaylorr.com>
Helped-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-02-10 09:04:45 -08:00
Junio C Hamano
11ad30b887 Merge branch 'hi/gpg-mintrustlevel'
gpg.minTrustLevel configuration variable has been introduced to
tell various signature verification codepaths the required minimum
trust level.

* hi/gpg-mintrustlevel:
  gpg-interface: add minTrustLevel as a configuration option
2020-01-30 14:17:08 -08:00
Hans Jerry Illikainen
54887b4689 gpg-interface: add minTrustLevel as a configuration option
Previously, signature verification for merge and pull operations checked
if the key had a trust-level of either TRUST_NEVER or TRUST_UNDEFINED in
verify_merge_signature().  If that was the case, the process die()d.

The other code paths that did signature verification relied entirely on
the return code from check_commit_signature().  And signatures made with
a good key, irregardless of its trust level, was considered valid by
check_commit_signature().

This difference in behavior might induce users to erroneously assume
that the trust level of a key in their keyring is always considered by
Git, even for operations where it is not (e.g. during a verify-commit or
verify-tag).

The way it worked was by gpg-interface.c storing the result from the
key/signature status *and* the lowest-two trust levels in the `result`
member of the signature_check structure (the last of these status lines
that were encountered got written to `result`).  These are documented in
GPG under the subsection `General status codes` and `Key related`,
respectively [1].

The GPG documentation says the following on the TRUST_ status codes [1]:

    """
    These are several similar status codes:

    - TRUST_UNDEFINED <error_token>
    - TRUST_NEVER     <error_token>
    - TRUST_MARGINAL  [0  [<validation_model>]]
    - TRUST_FULLY     [0  [<validation_model>]]
    - TRUST_ULTIMATE  [0  [<validation_model>]]

    For good signatures one of these status lines are emitted to
    indicate the validity of the key used to create the signature.
    The error token values are currently only emitted by gpgsm.
    """

My interpretation is that the trust level is conceptionally different
from the validity of the key and/or signature.  That seems to also have
been the assumption of the old code in check_signature() where a result
of 'G' (as in GOODSIG) and 'U' (as in TRUST_NEVER or TRUST_UNDEFINED)
were both considered a success.

The two cases where a result of 'U' had special meaning were in
verify_merge_signature() (where this caused git to die()) and in
format_commit_one() (where it affected the output of the %G? format
specifier).

I think it makes sense to refactor the processing of TRUST_ status lines
such that users can configure a minimum trust level that is enforced
globally, rather than have individual parts of git (e.g. merge) do it
themselves (except for a grace period with backward compatibility).

I also think it makes sense to not store the trust level in the same
struct member as the key/signature status.  While the presence of a
TRUST_ status code does imply that the signature is good (see the first
paragraph in the included snippet above), as far as I can tell, the
order of the status lines from GPG isn't well-defined; thus it would
seem plausible that the trust level could be overwritten with the
key/signature status if they were stored in the same member of the
signature_check structure.

This patch introduces a new configuration option: gpg.minTrustLevel.  It
consolidates trust-level verification to gpg-interface.c and adds a new
`trust_level` member to the signature_check structure.

Backward-compatibility is maintained by introducing a special case in
verify_merge_signature() such that if no user-configurable
gpg.minTrustLevel is set, then the old behavior of rejecting
TRUST_UNDEFINED and TRUST_NEVER is enforced.  If, on the other hand,
gpg.minTrustLevel is set, then that value overrides the old behavior.

Similarly, the %G? format specifier will continue show 'U' for
signatures made with a key that has a trust level of TRUST_UNDEFINED or
TRUST_NEVER, even though the 'U' character no longer exist in the
`result` member of the signature_check structure.  A new format
specifier, %GT, is also introduced for users that want to show all
possible trust levels for a signature.

Another approach would have been to simply drop the trust-level
requirement in verify_merge_signature().  This would also have made the
behavior consistent with other parts of git that perform signature
verification.  However, requiring a minimum trust level for signing keys
does seem to have a real-world use-case.  For example, the build system
used by the Qubes OS project currently parses the raw output from
verify-tag in order to assert a minimum trust level for keys used to
sign git tags [2].

[1] https://git.gnupg.org/cgi-bin/gitweb.cgi?p=gnupg.git;a=blob;f=doc/doc/DETAILS;h=bd00006e933ac56719b1edd2478ecd79273eae72;hb=refs/heads/master
[2] 9674c1991d/scripts/verify-git-tag (L43)

Signed-off-by: Hans Jerry Illikainen <hji@dyntopia.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2020-01-15 14:06:06 -08:00
Junio C Hamano
d37cfe3b5c Merge branch 'dl/pretty-reference'
"git log" family learned "--pretty=reference" that gives the name
of a commit in the format that is often used to refer to it in log
messages.

* dl/pretty-reference:
  SubmittingPatches: use `--pretty=reference`
  pretty: implement 'reference' format
  pretty: add struct cmt_fmt_map::default_date_mode_type
  pretty: provide short date format
  t4205: cover `git log --reflog -z` blindspot
  pretty.c: inline initalize format_context
  revision: make get_revision_mark() return const pointer
  completion: complete `tformat:` pretty format
  SubmittingPatches: remove dq from commit reference
  pretty-formats.txt: use generic terms for hash
  SubmittingPatches: use generic terms for hash
2019-12-10 13:11:43 -08:00
Denton Liu
1f0fc1db85 pretty: implement 'reference' format
The standard format for referencing other commits within some projects
(such as git.git) is the reference format. This is described in
Documentation/SubmittingPatches as

	If you want to reference a previous commit in the history of a stable
	branch, use the format "abbreviated hash (subject, date)", like this:

	....
		Commit f86a374 (pack-bitmap.c: fix a memleak, 2015-03-30)
		noticed that ...
	....

Since this format is so commonly used, standardize it as a pretty
format.

The tests that are implemented essentially show that the format-string
does not change in response to various log options. This is useful
because, for future developers, it shows that we've considered the
limitations of the "canned format-string" approach and we are fine with
them.

Based-on-a-patch-by: SZEDER Gábor <szeder.dev@gmail.com>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-20 13:33:37 +09:00
Denton Liu
618a855083 pretty: add struct cmt_fmt_map::default_date_mode_type
In a future commit, we plan on having a pretty format which will use a
default date format unless otherwise overidden. Add support for this by
adding a `default_date_mode_type` member in `struct cmt_fmt_map`.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-20 13:33:36 +09:00
René Scharfe
0df621172d pretty: provide short date format
Add the placeholders %as and %cs to format author date and committer
date, respectively, without the time part, like --date=short does, i.e.
like YYYY-MM-DD.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-20 13:33:36 +09:00
Denton Liu
3e8ed3b93e pretty.c: inline initalize format_context
Instead of memsetting and then initializing the fields in the struct,
move the initialization of `format_context` to its assignment.

Signed-off-by: Denton Liu <liu.denton@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-11-20 13:33:36 +09:00
Prarit Bhargava
d8b8217c8a pretty: add "%aL" etc. to show local-part of email addresses
In many projects the number of contributors is low enough that users know
each other and the full email address doesn't need to be displayed.
Displaying only the author's username saves a lot of columns on the screen.

Existing 'e/E' (as in "%ae" and "%aE") placeholders would show the
author's address as "prarit@redhat.com", which would waste columns to show
the same domain-part for all contributors when used in a project internal
to redhat.  Introduce 'l/L' placeholders that strip '@' and domain part from
the e-mail address.

Signed-off-by: Prarit Bhargava <prarit@redhat.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-10-30 11:49:41 +09:00
René Scharfe
0cc7380d88 log-tree: call load_ref_decorations() in get_name_decoration()
Load a default set of ref name decorations at the first lookup.  This
frees direct and indirect callers from doing so.  They can still do it
if they want to use a filter or are interested in full decorations
instead of the default short ones -- the first load_ref_decorations()
call wins.

This means that the load in builtin/log.c::cmd_log_init_finish() is
respected even if --simplify-by-decoration is given, as the previously
dominating earlier load in handle_revision_opt() is gone.  So a filter
given with --decorate-refs-exclude is used for simplification in that
case, as expected.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-09-09 11:16:40 -07:00
René Scharfe
921d49be86 use COPY_ARRAY for copying arrays
Convert calls of memcpy(3) to use COPY_ARRAY, which shortens and
simplifies the code a bit.

Patch generated by Coccinelle and contrib/coccinelle/array.cocci.

Signed-off-by: Rene Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-06-17 18:15:04 -07:00
Jeff King
9a1180fc30 pretty: drop unused strbuf from parse_padding_placeholder()
Unlike other parts of the --pretty user-format expansion,
this function is not actually writing to the output, but
instead just storing the padding values into a context
struct. We don't need to be passed a strbuf at all.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-03-20 18:34:09 +09:00
Jeff King
da55ff3d84 pretty: drop unused "type" parameter in needs_rfc2047_encoding()
The "should we encode" check was split off from add_rfc2047() into its
own function in 41dd00bad3 (format-patch: fix rfc2047 address encoding
with respect to rfc822 specials, 2012-10-18). But only the "add" half
needs to know the rfc2047_type, since it only affects _how_ we encode,
not whether we do.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-03-20 18:34:09 +09:00
Junio C Hamano
b0e7fb2e5c Merge branch 'nd/completion-more-parameters'
The command line completion (in contrib/) has been taught to
complete more subcommand parameters.

* nd/completion-more-parameters:
  completion: add more parameter value completion
2019-03-07 09:59:58 +09:00
Junio C Hamano
42977bf5c7 Merge branch 'aw/pretty-trailers'
The %(trailers) formatter in "git log --format=..."  now allows to
optionally pick trailers selectively by keyword, show only values,
etc.

* aw/pretty-trailers:
  pretty: add support for separator option in %(trailers)
  strbuf: separate callback for strbuf_expand:ing literals
  pretty: add support for "valueonly" option in %(trailers)
  pretty: allow showing specific trailers
  pretty: single return path in %(trailers) handling
  pretty: allow %(trailers) options with explicit value
  doc: group pretty-format.txt placeholders descriptions
2019-03-07 09:59:52 +09:00
Nguyễn Thái Ngọc Duy
5a59a2301f completion: add more parameter value completion
This adds value completion for a couple more paramters. To make it
easier to maintain these hard coded lists, add a comment at the original
list/code to remind people to update git-completion.bash too.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-02-20 12:31:56 -08:00
Junio C Hamano
b99a579f8e Merge branch 'sb/more-repo-in-api'
The in-core repository instances are passed through more codepaths.

* sb/more-repo-in-api: (23 commits)
  t/helper/test-repository: celebrate independence from the_repository
  path.h: make REPO_GIT_PATH_FUNC repository agnostic
  commit: prepare free_commit_buffer and release_commit_memory for any repo
  commit-graph: convert remaining functions to handle any repo
  submodule: don't add submodule as odb for push
  submodule: use submodule repos for object lookup
  pretty: prepare format_commit_message to handle arbitrary repositories
  commit: prepare logmsg_reencode to handle arbitrary repositories
  commit: prepare repo_unuse_commit_buffer to handle any repo
  commit: prepare get_commit_buffer to handle any repo
  commit-reach: prepare in_merge_bases[_many] to handle any repo
  commit-reach: prepare get_merge_bases to handle any repo
  commit-reach.c: allow get_merge_bases_many_0 to handle any repo
  commit-reach.c: allow remove_redundant to handle any repo
  commit-reach.c: allow merge_bases_many to handle any repo
  commit-reach.c: allow paint_down_to_common to handle any repo
  commit: allow parse_commit* to handle any repo
  object: parse_object to honor its repository argument
  object-store: prepare has_{sha1, object}_file to handle any repo
  object-store: prepare read_object_file to deal with any repo
  ...
2019-02-05 14:26:09 -08:00
Anders Waldenborg
0b691d8685 pretty: add support for separator option in %(trailers)
By default trailer lines are terminated by linebreaks ('\n'). By
specifying the new 'separator' option they will instead be separated by
user provided string and have separator semantics rather than terminator
semantics. The separator string can contain the literal formatting codes
%n and %xNN allowing it to be things that are otherwise hard to type
such as %x00, or comma and end-parenthesis which would break parsing.

E.g:
 $ git log --pretty='%(trailers:key=Reviewed-by,valueonly,separator=%x00)'

Signed-off-by: Anders Waldenborg <anders@0x63.nu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-01-29 10:03:32 -08:00
Anders Waldenborg
fd2015b323 strbuf: separate callback for strbuf_expand:ing literals
Expanding '%n' and '%xNN' is generic functionality, so extract that from
the pretty.c formatter into a callback that can be reused.

No functional change intended

Signed-off-by: Anders Waldenborg <anders@0x63.nu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-01-29 10:03:32 -08:00
Anders Waldenborg
d9b936db52 pretty: add support for "valueonly" option in %(trailers)
With the new "key=" option to %(trailers) it often makes little sense to
show the key, as it by definition already is knows which trailer is
printed there. This new "valueonly" option makes it omit the key when
printing trailers.

E.g.:
 $ git show -s --pretty='%s%n%(trailers:key=Signed-off-by,valueonly)' aaaa88182
will show:
 > upload-pack: fix broken if/else chain in config callback
 > Jeff King <peff@peff.net>
 > Junio C Hamano <gitster@pobox.com>

Signed-off-by: Anders Waldenborg <anders@0x63.nu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-01-29 10:03:32 -08:00
Anders Waldenborg
250bea0c16 pretty: allow showing specific trailers
Adds a new "key=X" option to "%(trailers)" which will cause it to only
print trailer lines which match any of the specified keys.

Signed-off-by: Anders Waldenborg <anders@0x63.nu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-01-29 10:03:32 -08:00
Anders Waldenborg
3e3f347819 pretty: single return path in %(trailers) handling
No functional change intended.

This change may not seem useful on its own, but upcoming commits will do
memory allocation in there, and a single return path makes deallocation
easier.

Signed-off-by: Anders Waldenborg <anders@0x63.nu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-01-29 10:03:32 -08:00
Anders Waldenborg
4f732e0fd7 pretty: allow %(trailers) options with explicit value
In addition to old %(trailers:only) it is now allowed to write
%(trailers:only=yes)

By itself this only gives (the not quite so useful) possibility to have
users change their mind in the middle of a formatting
string (%(trailers:only=true,only=false)). However, it gives users the
opportunity to override defaults from future options.

Signed-off-by: Anders Waldenborg <anders@0x63.nu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-01-29 10:03:09 -08:00
Issac Trotts
ad6f028f06 log: add %S option (like --source) to log --format
Make it possible to write for example

        git log --format="%H,%S"

where the %S at the end is a new placeholder that prints out the ref
(tag/branch) for each commit.

Using %d might seem like an alternative but it only shows the ref for the last
commit in the branch.

Signed-off-by: Issac Trotts <issactrotts@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2019-01-11 10:28:11 -08:00
Stefan Beller
f54fbf5eef pretty: prepare format_commit_message to handle arbitrary repositories
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-11-14 17:22:40 +09:00
Stefan Beller
424510ed19 commit: prepare logmsg_reencode to handle arbitrary repositories
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-11-14 17:22:40 +09:00
Junio C Hamano
11cc180fa5 Merge branch 'mg/gpg-fingerprint'
New "--pretty=format:" placeholders %GF and %GP that show the GPG
key fingerprints have been invented.

* mg/gpg-fingerprint:
  gpg-interface.c: obtain primary key fingerprint as well
  gpg-interface.c: support getting key fingerprint via %GF format
  gpg-interface.c: use flags to determine key/signer info presence
2018-11-03 00:53:58 +09:00
Michał Górny
4de9394dcb gpg-interface.c: obtain primary key fingerprint as well
Obtain the primary key fingerprint off VALIDSIG status message,
and expose it via %GP format.

Signed-off-by: Michał Górny <mgorny@gentoo.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-23 08:00:43 +09:00
Michał Górny
3daaaabe7e gpg-interface.c: support getting key fingerprint via %GF format
Support processing VALIDSIG status that provides additional information
for valid signatures.  Use this information to propagate signing key
fingerprint and expose it via %GF pretty format.  This format can be
used to build safer key verification systems that verify the key via
complete fingerprint rather than short/long identifier provided by %GK.

Signed-off-by: Michał Górny <mgorny@gentoo.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-10-23 08:00:09 +09:00
Junio C Hamano
fba9654364 Merge branch 'jk/trailer-fixes'
"git interpret-trailers" and its underlying machinery had a buggy
code that attempted to ignore patch text after commit log message,
which triggered in various codepaths that will always get the log
message alone and never get such an input.

* jk/trailer-fixes:
  append_signoff: use size_t for string offsets
  sequencer: ignore "---" divider when parsing trailers
  pretty, ref-filter: format %(trailers) with no_divider option
  interpret-trailers: allow suppressing "---" divider
  interpret-trailers: tighten check for "---" patch boundary
  trailer: pass process_trailer_opts to trailer_info_get()
  trailer: use size_t for iterating trailer list
  trailer: use size_t for string offsets
2018-09-17 13:53:54 -07:00
Jeff King
e5fba5d558 pretty, ref-filter: format %(trailers) with no_divider option
In both of these cases we know that we are feeding the
trailer-parsing code a pure commit message. We should tell
it so, which avoids false positives for a commit message
that contains a "---" line.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-08-23 10:08:51 -07:00
Junio C Hamano
7d020f5a78 Merge branch 'jk/size-t'
Code clean-up to use size_t/ssize_t when they are the right type.

* jk/size-t:
  strbuf_humanise: use unsigned variables
  pass st.st_size as hint for strbuf_readlink()
  strbuf_readlink: use ssize_t
  strbuf: use size_t for length in intermediate variables
  reencode_string: use size_t for string lengths
  reencode_string: use st_add/st_mult helpers
2018-08-15 15:08:25 -07:00
Junio C Hamano
3a2a1dc170 Merge branch 'sb/object-store-lookup'
lookup_commit_reference() and friends have been updated to find
in-core object for a specific in-core repository instance.

* sb/object-store-lookup: (32 commits)
  commit.c: allow lookup_commit_reference to handle arbitrary repositories
  commit.c: allow lookup_commit_reference_gently to handle arbitrary repositories
  tag.c: allow deref_tag to handle arbitrary repositories
  object.c: allow parse_object to handle arbitrary repositories
  object.c: allow parse_object_buffer to handle arbitrary repositories
  commit.c: allow get_cached_commit_buffer to handle arbitrary repositories
  commit.c: allow set_commit_buffer to handle arbitrary repositories
  commit.c: migrate the commit buffer to the parsed object store
  commit-slabs: remove realloc counter outside of slab struct
  commit.c: allow parse_commit_buffer to handle arbitrary repositories
  tag: allow parse_tag_buffer to handle arbitrary repositories
  tag: allow lookup_tag to handle arbitrary repositories
  commit: allow lookup_commit to handle arbitrary repositories
  tree: allow lookup_tree to handle arbitrary repositories
  blob: allow lookup_blob to handle arbitrary repositories
  object: allow lookup_object to handle arbitrary repositories
  object: allow object_as_type to handle arbitrary repositories
  tag: add repository argument to deref_tag
  tag: add repository argument to parse_tag_buffer
  tag: add repository argument to lookup_tag
  ...
2018-08-02 15:30:42 -07:00
Jeff King
c7d017d7e1 reencode_string: use size_t for string lengths
The iconv interface takes a size_t, which is the appropriate
type for an in-memory buffer. But our reencode_string_*
functions use integers, meaning we may get confusing results
when the sizes exceed INT_MAX. Let's use size_t
consistently.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-24 10:19:29 -07:00
brian m. carlson
580f0980e1 pretty: switch hard-coded constants to the_hash_algo
Switch several hard-coded constants into expressions based either on
GIT_MAX_HEXSZ or the_hash_algo.

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-07-16 14:27:40 -07:00
Stefan Beller
3ce85f7e5a commit: add repository argument to get_cached_commit_buffer
Add a repository argument to allow callers of get_cached_commit_buffer to
be more specific about which repository to handle. This is a small
mechanical change; it doesn't change the implementation to handle
repositories other than the_repository yet.

As with the previous commits, use a macro to catch callers passing a
repository other than the_repository at compile time.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-29 10:43:39 -07:00
Stefan Beller
109cd76dd3 object: add repository argument to parse_object
Add a repository argument to allow the callers of parse_object
to be more specific about which repository to act on. This is a small
mechanical change; it doesn't change the implementation to handle
repositories other than the_repository yet.

As with the previous commits, use a macro to catch callers passing a
repository other than the_repository at compile time.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-29 10:43:38 -07:00
Junio C Hamano
c89b6e136e Merge branch 'ds/lazy-load-trees'
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
2018-05-23 14:38:13 +09:00
Derrick Stolee
2e27bd7731 treewide: replace maybe_tree with accessor methods
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 <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-11 10:47:16 +09:00
Derrick Stolee
891435d55d treewide: rename tree to maybe_tree
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 <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-11 10:47:16 +09:00
brian m. carlson
30e677e0e2 strbuf: convert strbuf_add_unique_abbrev to use struct object_id
Convert the declaration and definition of strbuf_add_unique_abbrev to
make it take a pointer to struct object_id.  Predeclare the struct in
strbuf.h, as cache.h includes strbuf.h before it declares the struct,
and otherwise the struct declaration would have the wrong scope.

Apply the following semantic patch, along with the standard object_id
transforms, to adjust the callers:

@@
expression E1, E2, E3;
@@
- strbuf_add_unique_abbrev(E1, E2.hash, E3);
+ strbuf_add_unique_abbrev(E1, &E2, E3);

@@
expression E1, E2, E3;
@@
- strbuf_add_unique_abbrev(E1, E2->hash, E3);
+ strbuf_add_unique_abbrev(E1, E2, E3);

Signed-off-by: brian m. carlson <sandals@crustytoothpaste.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-14 09:23:48 -07:00
Rafael Ascensão
65516f586b log: add option to choose which refs to decorate
When `log --decorate` is used, git will decorate commits with all
available refs. While in most cases this may give the desired effect,
under some conditions it can lead to excessively verbose output.

Introduce two command line options, `--decorate-refs=<pattern>` and
`--decorate-refs-exclude=<pattern>` to allow the user to select which
refs are used in decoration.

When "--decorate-refs=<pattern>" is given, only the refs that match the
pattern are used in decoration. The refs that match the pattern when
"--decorate-refs-exclude=<pattern>" is given, are never used in
decoration.

These options follow the same convention for mixing negative and
positive patterns across the system, assuming that the inclusive default
is to match all refs available.

 (1) if there is no positive pattern given, pretend as if an
     inclusive default positive pattern was given;

 (2) for each candidate, reject it if it matches no positive
     pattern, or if it matches any one of the negative patterns.

The rules for what is considered a match are slightly different from the
rules used elsewhere.

Commands like `log --glob` assume a trailing '/*' when glob chars are
not present in the pattern. This makes it difficult to specify a single
ref.  On the other hand, commands like `describe --match --all` allow
specifying exact refs, but do not have the convenience of allowing
"shorthand refs" like 'refs/heads' or 'heads' to refer to
'refs/heads/*'.

The commands introduced in this patch consider a match if:

  (a) the pattern contains globs chars,
	and regular pattern matching returns a match.

  (b) the pattern does not contain glob chars,
         and ref '<pattern>' exists, or if ref exists under '<pattern>/'

This allows both behaviours (allowing single refs and shorthand refs)
yet remaining compatible with existent commands.

Helped-by: Kevin Daudt <me@ikke.info>
Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Rafael Ascensão <rafa.almas@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-22 13:18:59 +09:00
Taylor Blau
84ff053d47 pretty.c: delimit "%(trailers)" arguments with ","
In preparation for adding consistent "%(trailers)" atom options to
`git-for-each-ref(1)`'s "--format" argument, change "%(trailers)" in
pretty.c to separate sub-arguments with a ",", instead of a ":".

Multiple sub-arguments are given either as "%(trailers:unfold,only)" or
"%(trailers:only,unfold)".

This change disambiguates between "top-level" arguments, and arguments
given to the trailers atom itself. It is consistent with the behavior of
"%(upstream)" and "%(push)" atoms.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-02 09:22:52 +09:00
Junio C Hamano
06cf4f2d87 Merge branch 'jk/trailers-parse'
"git interpret-trailers" has been taught a "--parse" and a few
other options to make it easier for scripts to grab existing
trailer lines from a commit log message.

* jk/trailers-parse:
  doc/interpret-trailers: fix "the this" typo
  pretty: support normalization options for %(trailers)
  t4205: refactor %(trailers) tests
  pretty: move trailer formatting to trailer.c
  interpret-trailers: add --parse convenience option
  interpret-trailers: add an option to unfold values
  interpret-trailers: add an option to show only existing trailers
  interpret-trailers: add an option to show only the trailers
  trailer: put process_trailers() options into a struct
2017-08-26 22:55:04 -07:00
Jeff King
58311c66fd pretty: support normalization options for %(trailers)
The interpret-trailers command recently learned some options
to make its output easier to parse (for a caller whose only
interested in picking out the trailer values). But it's not
very efficient for asking for the trailers of many commits
in a single invocation.

We already have "%(trailers)" to do that, but it doesn't
know about unfolding or omitting non-trailers. Let's plumb
those options through, so you can have the best of both.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-08-15 11:13:58 -07:00
Jeff King
a388b10fc1 pretty: move trailer formatting to trailer.c
The next commit will add many features to the %(trailer)
placeholder in pretty.c. We'll need to access some internal
functions of trailer.c for that, so our options are either:

  1. expose those functions publicly

or

  2. make an entry point into trailer.c to do the formatting

Doing (2) ends up exposing less surface area, though do note
that caveats in the docstring of the new function.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-08-15 11:13:58 -07:00
Jeff King
18fb7ffc3d pretty: respect color settings for %C placeholders
The color placeholders have traditionally been
unconditional, showing colors even when git is not otherwise
configured to do so. This was not so bad for their original
use, which was on the command-line (and the user could
decide at that moment whether to add colors or not). But
these days we have configured formats via pretty.*, and
those should operate correctly in multiple contexts.

In 3082517 (log --format: teach %C(auto,black) to respect
color config, 2012-12-17), we gave an extended placeholder
that could be used to accomplish this. But it's rather
clunky to use, because you have to specify it individually
for each color (and their matching resets) in the format.
We shied away from just switching the default to auto,
because it is technically breaking backwards compatibility.

However, there's not really a use case for unconditional
colors. The most plausible reason you would want them is to
redirect "git log" output to a file. But there, the right
answer is --color=always, as it does the right thing both
with custom user-format colors and git-generated colors.

So let's switch to the more useful default. In the
off-chance that somebody really does find a use for
unconditional colors without wanting to enable the rest of
git's colors, we provide a new %C(always,...) to enable the
old behavior. And we can remind them of --color=always in
the documentation.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-13 12:42:51 -07:00
Junio C Hamano
49771171e5 Merge branch 'rs/pretty-add-again' into maint
The pretty-format specifiers like '%h', '%t', etc. had an
optimization that no longer works correctly.  In preparation/hope
of getting it correctly implemented, first discard the optimization
that is broken.

* rs/pretty-add-again:
  pretty: recalculate duplicate short hashes
2017-07-10 13:58:57 -07:00