Commit Graph

1261 Commits

Author SHA1 Message Date
Ville Skyttä
928f0ab4ba Documentation: spelling and grammar fixes
Signed-off-by: Ville Skyttä <ville.skytta@iki.fi>
Reviewed-by: Eric Sunshine <sunshine@sunshineco.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-22 14:26:23 -07:00
Taylor Blau
6653fec3bb grep.c: add configuration variables to show matched option
To support git-grep(1)'s new option, '--column', document and teach
grep.c how to interpret relevant configuration options, similar to those
associated with '--line-number'.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-22 12:59:02 -07:00
Brandon Williams
0dcbc0392e docs: link to gitsubmodules
Add a link to gitsubmodules(7) under the `submodule.active` entry in
git-config(1).

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-21 13:58:33 -07:00
Taylor Blau
f8a0c6e799 Documentation/config.txt: camel-case lineNumber for consistency
lineNumber has casing that is inconsistent with surrounding options,
like color.grep.matchContext, and color.grep.matchSelected. Re-case this
documentation in order to be consistent with the text around it, and to
ensure that new entries are consistent, too.

Signed-off-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-21 13:48:36 -07:00
Ævar Arnfjörð Bjarmason
8d7b558bae checkout & worktree: introduce checkout.defaultRemote
Introduce a checkout.defaultRemote setting which can be used to
designate a remote to prefer (via checkout.defaultRemote=origin) when
running e.g. "git checkout master" to mean origin/master, even though
there's other remotes that have the "master" branch.

I want this because it's very handy to use this workflow to checkout a
repository and create a topic branch, then get back to a "master" as
retrieved from upstream:

    (
        cd /tmp &&
        rm -rf tbdiff &&
        git clone git@github.com:trast/tbdiff.git &&
        cd tbdiff &&
        git branch -m topic &&
        git checkout master
    )

That will output:

    Branch 'master' set up to track remote branch 'master' from 'origin'.
    Switched to a new branch 'master'

But as soon as a new remote is added (e.g. just to inspect something
from someone else) the DWIMery goes away:

    (
        cd /tmp &&
        rm -rf tbdiff &&
        git clone git@github.com:trast/tbdiff.git &&
        cd tbdiff &&
        git branch -m topic &&
        git remote add avar git@github.com:avar/tbdiff.git &&
        git fetch avar &&
        git checkout master
    )

Will output (without the advice output added earlier in this series):

    error: pathspec 'master' did not match any file(s) known to git.

The new checkout.defaultRemote config allows me to say that whenever
that ambiguity comes up I'd like to prefer "origin", and it'll still
work as though the only remote I had was "origin".

Also adjust the advice.checkoutAmbiguousRemoteBranchName message to
mention this new config setting to the user, the full output on my
git.git is now (the last paragraph is new):

    $ ./git --exec-path=$PWD checkout master
    error: pathspec 'master' did not match any file(s) known to git.
    hint: 'master' matched more than one remote tracking branch.
    hint: We found 26 remotes with a reference that matched. So we fell back
    hint: on trying to resolve the argument as a path, but failed there too!
    hint:
    hint: If you meant to check out a remote tracking branch on, e.g. 'origin',
    hint: you can do so by fully qualifying the name with the --track option:
    hint:
    hint:     git checkout --track origin/<name>
    hint:
    hint: If you'd like to always have checkouts of an ambiguous <name> prefer
    hint: one remote, e.g. the 'origin' remote, consider setting
    hint: checkout.defaultRemote=origin in your config.

I considered splitting this into checkout.defaultRemote and
worktree.defaultRemote, but it's probably less confusing to break our
own rules that anything shared between config should live in core.*
than have two config settings, and I couldn't come up with a short
name under core.* that made sense (core.defaultRemoteForCheckout?).

See also 70c9ac2f19 ("DWIM "git checkout frotz" to "git checkout -b
frotz origin/frotz"", 2009-10-18) which introduced this DWIM feature
to begin with, and 4e85333197 ("worktree: make add <path> <branch>
dwim", 2017-11-26) which added it to git-worktree.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-11 09:41:02 -07:00
Ævar Arnfjörð Bjarmason
ad8d5104b4 checkout: add advice for ambiguous "checkout <branch>"
As the "checkout" documentation describes:

    If <branch> is not found but there does exist a tracking branch in
    exactly one remote (call it <remote>) with a matching name, treat
    as equivalent to [...] <remote>/<branch.

This is a really useful feature. The problem is that when you add
another remote (e.g. a fork), git won't find a unique branch name
anymore, and will instead print this unhelpful message:

    $ git checkout master
    error: pathspec 'master' did not match any file(s) known to git

Now it will, on my git.git checkout, print:

    $ ./git --exec-path=$PWD checkout master
    error: pathspec 'master' did not match any file(s) known to git.
    hint: 'master' matched more than one remote tracking branch.
    hint: We found 26 remotes with a reference that matched. So we fell back
    hint: on trying to resolve the argument as a path, but failed there too!
    hint:
    hint: If you meant to check out a remote tracking branch on, e.g. 'origin',
    hint: you can do so by fully qualifying the name with the --track option:
    hint:
    hint:     git checkout --track origin/<name>

Note that the "error: pathspec[...]" message is still printed. This is
because whatever else checkout may have tried earlier, its final
fallback is to try to resolve the argument as a path. E.g. in this
case:

    $ ./git --exec-path=$PWD checkout master pu
    error: pathspec 'master' did not match any file(s) known to git.
    error: pathspec 'pu' did not match any file(s) known to git.

There we don't print the "hint:" implicitly due to earlier logic
around the DWIM fallback. That fallback is only used if it looks like
we have one argument that might be a branch.

I can't think of an intrinsic reason for why we couldn't in some
future change skip printing the "error: pathspec[...]" error. However,
to do so we'd need to pass something down to checkout_paths() to make
it suppress printing an error on its own, and for us to be confident
that we're not silencing cases where those errors are meaningful.

I don't think that's worth it since determining whether that's the
case could easily change due to future changes in the checkout logic.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-06-11 09:41:01 -07:00
Junio C Hamano
2289880f78 Merge branch 'nd/command-list'
The list of commands with their various attributes were spread
across a few places in the build procedure, but it now is getting a
bit more consolidated to allow more automation.

* nd/command-list:
  completion: allow to customize the completable command list
  completion: add and use --list-cmds=alias
  completion: add and use --list-cmds=nohelpers
  Move declaration for alias.c to alias.h
  completion: reduce completable command list
  completion: let git provide the completable command list
  command-list.txt: documentation and guide line
  help: use command-list.txt for the source of guides
  help: add "-a --verbose" to list all commands with synopsis
  git: support --list-cmds=list-<category>
  completion: implement and use --list-cmds=main,others
  git --list-cmds: collect command list in a string_list
  git.c: convert --list-* to --list-cmds=*
  Remove common-cmds.h
  help: use command-list.h for common command list
  generate-cmds.sh: export all commands to command-list.h
  generate-cmds.sh: factor out synopsis extract code
2018-06-01 15:06:37 +09:00
Junio C Hamano
3d24129799 Merge branch 'sb/blame-color'
"git blame" learns to unhighlight uninteresting metadata from the
originating commit on lines that are the same as the previous one,
and also paint lines in different colors depending on the age of
the commit.

* sb/blame-color:
  builtin/blame: add new coloring scheme config
  builtin/blame: highlight recently changed lines
  builtin/blame: dim uninteresting metadata lines
2018-05-30 14:04:09 +09:00
Junio C Hamano
5da4847dcc Merge branch 'bp/status-rename-config'
"git status" learned to honor a new status.renames configuration to
skip rename detection, which could be useful for those who want to
do so without disabling the default rename detection done by the
"git diff" command.

* bp/status-rename-config:
  add status config and command line options for rename detection
2018-05-30 14:04:07 +09:00
Nguyễn Thái Ngọc Duy
09c4ba410b log-tree: allow to customize 'grafted' color
Commit 76f5df305b (log: decorate grafted commits with "grafted" -
2011-08-18) lets us decorate grafted commits but I forgot about the
color.decorate.* config.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-29 14:51:29 +09:00
Junio C Hamano
17b3e51505 Merge branch 'nd/command-list' into nd/complete-config-vars
* nd/command-list:
  completion: allow to customize the completable command list
  completion: add and use --list-cmds=alias
  completion: add and use --list-cmds=nohelpers
  Move declaration for alias.c to alias.h
  completion: reduce completable command list
  completion: let git provide the completable command list
  command-list.txt: documentation and guide line
  help: use command-list.txt for the source of guides
  help: add "-a --verbose" to list all commands with synopsis
  git: support --list-cmds=list-<category>
  completion: implement and use --list-cmds=main,others
  git --list-cmds: collect command list in a string_list
  git.c: convert --list-* to --list-cmds=*
  Remove common-cmds.h
  help: use command-list.h for common command list
  generate-cmds.sh: export all commands to command-list.h
  generate-cmds.sh: factor out synopsis extract code
2018-05-29 14:51:14 +09:00
Junio C Hamano
2c18e6ae24 Merge branch 'js/rebase-recreate-merge'
"git rebase" learned "--rebase-merges" to transplant the whole
topology of commit graph elsewhere.

* js/rebase-recreate-merge:
  rebase -i --rebase-merges: add a section to the man page
  rebase -i: introduce --rebase-merges=[no-]rebase-cousins
  pull: accept --rebase=merges to recreate the branch topology
  rebase --rebase-merges: avoid "empty merges"
  sequencer: handle post-rewrite for merge commands
  sequencer: make refs generated by the `label` command worktree-local
  rebase --rebase-merges: add test for --keep-empty
  rebase: introduce the --rebase-merges option
  rebase-helper --make-script: introduce a flag to rebase merges
  sequencer: fast-forward `merge` commands, if possible
  sequencer: introduce the `merge` command
  sequencer: introduce new commands to reset the revision
  git-rebase--interactive: clarify arguments
  sequencer: offer helpful advice when a command was rescheduled
  sequencer: refactor how original todo list lines are accessed
  sequencer: make rearrange_squash() a bit more obvious
  sequencer: avoid using errno clobbered by rollback_lock_file()
2018-05-23 14:38:20 +09:00
Junio C Hamano
ad635e82d6 Merge branch 'nd/pack-objects-pack-struct'
"git pack-objects" needs to allocate tons of "struct object_entry"
while doing its work, and shrinking its size helps the performance
quite a bit.

* nd/pack-objects-pack-struct:
  ci: exercise the whole test suite with uncommon code in pack-objects
  pack-objects: reorder members to shrink struct object_entry
  pack-objects: shrink delta_size field in struct object_entry
  pack-objects: shrink size field in struct object_entry
  pack-objects: clarify the use of object_entry::size
  pack-objects: don't check size when the object is bad
  pack-objects: shrink z_delta_size field in struct object_entry
  pack-objects: refer to delta objects by index instead of pointer
  pack-objects: move in_pack out of struct object_entry
  pack-objects: move in_pack_pos out of struct object_entry
  pack-objects: use bitfield for object_entry::depth
  pack-objects: use bitfield for object_entry::dfs_state
  pack-objects: turn type and in_pack_type to bitfields
  pack-objects: a bit of document about struct object_entry
  read-cache.c: make $GIT_TEST_SPLIT_INDEX boolean
2018-05-23 14:38:19 +09:00
Junio C Hamano
30b015bffe Merge branch 'nd/repack-keep-pack'
"git gc" in a large repository takes a lot of time as it considers
to repack all objects into one pack by default.  The command has
been taught to pretend as if the largest existing packfile is
marked with ".keep" so that it is left untouched while objects in
other packs and loose ones are repacked.

* nd/repack-keep-pack:
  pack-objects: show some progress when counting kept objects
  gc --auto: exclude base pack if not enough mem to "repack -ad"
  gc: handle a corner case in gc.bigPackThreshold
  gc: add gc.bigPackThreshold config
  gc: add --keep-largest-pack option
  repack: add --keep-pack option
  t7700: have closing quote of a test at the beginning of line
2018-05-23 14:38:14 +09:00
Nguyễn Thái Ngọc Duy
6532f3740b completion: allow to customize the completable command list
By default we show porcelain, external commands and a couple others
that are also popular. If you are not happy with this list, you can
now customize it a new config variable.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-21 13:23:14 +09:00
Ben Peart
e8b2dc2c2a add status config and command line options for rename detection
After performing a merge that has conflicts git status will, by default,
attempt to detect renames which causes many objects to be examined.  In a
virtualized repo, those objects do not exist locally so the rename logic
triggers them to be fetched from the server. This results in the status call
taking hours to complete on very large repos vs seconds with this patch.

Add a new config status.renames setting to enable turning off rename
detection during status and commit.  This setting will default to the value
of diff.renames.

Add a new config status.renamelimit setting to to enable bounding the time
spent finding out inexact renames during status and commit.  This setting
will default to the value of diff.renamelimit.

Add --no-renames command line option to status that enables overriding the
config setting from the command line. Add --find-renames[=<n>] command line
option to status that enables detecting renames and optionally setting the
similarity index.

Reviewed-by: Elijah Newren <newren@gmail.com>
Original-Patch-by: Alejandro Pauly <alpauly@microsoft.com>
Signed-off-by: Ben Peart <Ben.Peart@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-05-13 10:57:37 +09:00
Junio C Hamano
a56fb3dcc0 Merge branch 'js/colored-push-errors'
Error messages from "git push" can be painted for more visibility.

* js/colored-push-errors:
  config: document the settings to colorize push errors/hints
  push: test to verify that push errors are colored
  push: colorize errors
  color: introduce support for colorizing stderr
2018-05-08 15:59:34 +09:00
Junio C Hamano
1ac0ce4d32 Merge branch 'ls/checkout-encoding'
The new "checkout-encoding" attribute can ask Git to convert the
contents to the specified encoding when checking out to the working
tree (and the other way around when checking in).

* ls/checkout-encoding:
  convert: add round trip check based on 'core.checkRoundtripEncoding'
  convert: add tracing for 'working-tree-encoding' attribute
  convert: check for detectable errors in UTF encodings
  convert: add 'working-tree-encoding' attribute
  utf8: add function to detect a missing UTF-16/32 BOM
  utf8: add function to detect prohibited UTF-16/32 BOM
  utf8: teach same_encoding() alternative UTF encoding names
  strbuf: add a case insensitive starts_with()
  strbuf: add xstrdup_toupper()
  strbuf: remove unnecessary NUL assignment in xstrdup_tolower()
2018-05-08 15:59:22 +09:00
Junio C Hamano
b10edb2df5 Merge branch 'ds/commit-graph'
Precompute and store information necessary for ancestry traversal
in a separate file to optimize graph walking.

* ds/commit-graph:
  commit-graph: implement "--append" option
  commit-graph: build graph from starting commits
  commit-graph: read only from specific pack-indexes
  commit: integrate commit graph with commit parsing
  commit-graph: close under reachability
  commit-graph: add core.commitGraph setting
  commit-graph: implement git commit-graph read
  commit-graph: implement git-commit-graph write
  commit-graph: implement write_commit_graph()
  commit-graph: create git-commit-graph builtin
  graph: add commit graph design document
  commit-graph: add format document
  csum-file: refactor finalize_hashfile() method
  csum-file: rename hashclose() to finalize_hashfile()
2018-05-08 15:59:20 +09:00
Johannes Schindelin
1131ec9818 pull: accept --rebase=merges to recreate the branch topology
Similar to the `preserve` mode simply passing the `--preserve-merges`
option to the `rebase` command, the `merges` mode simply passes the
`--rebase-merges` option.

This will allow users to conveniently rebase non-trivial commit
topologies when pulling new commits, without flattening them.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-26 12:28:43 +09:00
Stefan Beller
0dc95a4d8a builtin/blame: add new coloring scheme config
Add a config option that allows selecting the default color scheme for
blame. The command line still takes precedence over the configuration.

It is to be seen, how color.ui will integrate with blame coloring.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-24 11:03:17 +09:00
Stefan Beller
25d5f52901 builtin/blame: highlight recently changed lines
Choose a different color for dates and imitate a 'temperature cool down'
depending upon age.

Originally I had planned to have the temperature cool down dependent on
the age of the project or file for example, as that might scale better,
but that can be added on top of this commit, e.g. instead of giving a
date, you could imagine giving a percentage that would be the linearly
interpolated between now and the beginning of the file.

Similarly to the previous patch, this offers the command line option
'--color-by-age' to enable this mode and the config option
'color.blame.highlightrecent' to select colors. A later patch will offer
a config option to select the default mode.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-24 11:03:15 +09:00
Stefan Beller
cdc2d5f11f builtin/blame: dim uninteresting metadata lines
When using git-blame lots of lines contain redundant information, for
example in hunks that consist of multiple lines, the metadata (commit
name, author, date) are repeated. A reader may not be interested in those,
so offer an option to color the information that is repeated from the
previous line differently. Traditionally, we use CYAN for lines that
are less interesting than others (e.g. hunk header), so go with that.

The command line option '--color-lines' will trigger the coloring of
repeated lines, and the config option 'color.blame.colorLines' is
provided to select the color. Setting the config option doesn't imply
that repeated lines are colored. A later patch will introduce a config
to enable this mode by default.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-24 11:03:13 +09:00
Johannes Schindelin
79f62e7dd9 config: document the settings to colorize push errors/hints
Let's make it easier for users to find out how to customize these colors.

Signed-off-by: Johannes Schindelin <johannes.schindelin@gmx.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-24 10:38:47 +09:00
Nguyễn Thái Ngọc Duy
8fc6776247 gc: handle a corner case in gc.bigPackThreshold
This config allows us to keep <N> packs back if their size is larger
than a limit. But if this N >= gc.autoPackLimit, we may have a
problem. We are supposed to reduce the number of packs after a
threshold because it affects performance.

We could tell the user that they have incompatible gc.bigPackThreshold
and gc.autoPackLimit, but it's kinda hard when 'git gc --auto' runs in
background. Instead let's fall back to the next best stategy: try to
reduce the number of packs anyway, but keep the base pack out. This
reduces the number of packs to two and hopefully won't take up too
much resources to repack (the assumption still is the base pack takes
most resources to handle).

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16 13:52:29 +09:00
Nguyễn Thái Ngọc Duy
55dfe13df9 gc: add gc.bigPackThreshold config
The --keep-largest-pack option is not very convenient to use because
you need to tell gc to do this explicitly (and probably on just a few
large repos).

Add a config key that enables this mode when packs larger than a limit
are found. Note that there's a slight behavior difference compared to
--keep-largest-pack: all packs larger than the threshold are kept, not
just the largest one.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16 13:52:29 +09:00
Nguyễn Thái Ngọc Duy
0cb3c1427a pack-objects: shrink z_delta_size field in struct object_entry
We only cache deltas when it's smaller than a certain limit. This limit
defaults to 1000 but save its compressed length in a 64-bit field.
Shrink that field down to 20 bits, so you can only cache 1MB deltas.
Larger deltas must be recomputed at when the pack is written down.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16 12:38:58 +09:00
Nguyễn Thái Ngọc Duy
b5c0cbd808 pack-objects: use bitfield for object_entry::depth
Because of struct packing from now on we can only handle max depth
4095 (or even lower when new booleans are added in this struct). This
should be ok since long delta chain will cause significant slow down
anyway.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16 12:38:58 +09:00
Lars Schneider
e92d622536 convert: add round trip check based on 'core.checkRoundtripEncoding'
UTF supports lossless conversion round tripping and conversions between
UTF and other encodings are mostly round trip safe as Unicode aims to be
a superset of all other character encodings. However, certain encodings
(e.g. SHIFT-JIS) are known to have round trip issues [1].

Add 'core.checkRoundtripEncoding', which contains a comma separated
list of encodings, to define for what encodings Git should check the
conversion round trip if they are used in the 'working-tree-encoding'
attribute.

Set SHIFT-JIS as default value for 'core.checkRoundtripEncoding'.

[1] https://support.microsoft.com/en-us/help/170559/prb-conversion-problem-between-shift-jis-and-unicode

Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-16 11:40:56 +09:00
Junio C Hamano
9b59d8869d Merge branch 'lv/tls-1.3'
When built with more recent cURL, GIT_SSL_VERSION can now specify
"tlsv1.3" as its value.

* lv/tls-1.3:
  http: allow use of TLS 1.3
2018-04-11 13:09:57 +09:00
Derrick Stolee
1b70dfd594 commit-graph: add core.commitGraph setting
The commit graph feature is controlled by the new core.commitGraph config
setting. This defaults to 0, so the feature is opt-in.

The intention of core.commitGraph is that a user can always stop checking
for or parsing commit graph files if core.commitGraph=0.

Signed-off-by: Derrick Stolee <dstolee@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-04-11 10:43:01 +09:00
Junio C Hamano
c2a499e6c3 Merge branch 'jh/partial-clone'
Hotfix.

* jh/partial-clone:
  upload-pack: disable object filtering when disabled by config
  unpack-trees: release oid_array after use in check_updates()
2018-03-29 15:39:59 -07:00
Jonathan Nieder
c7620bd0f3 upload-pack: disable object filtering when disabled by config
When upload-pack gained partial clone support (v2.17.0-rc0~132^2~12,
2017-12-08), it was guarded by the uploadpack.allowFilter config item
to allow server operators to control when they start supporting it.

That config item didn't go far enough, though: it controls whether the
'filter' capability is advertised, but if a (custom) client ignores
the capability advertisement and passes a filter specification anyway,
the server would handle that despite allowFilter being false.

This is particularly significant if a security bug is discovered in
this new experimental partial clone code.  Installations without
uploadpack.allowFilter ought not to be affected since they don't
intend to support partial clone, but they would be swept up into being
vulnerable.

Simplify and limit the attack surface by making uploadpack.allowFilter
disable the feature, not just the advertisement of it.

Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-29 15:39:31 -07:00
Loganaden Velvindron
d81b651f56 http: allow use of TLS 1.3
Add a tlsv1.3 option to http.sslVersion in addition to the existing
tlsv1.[012] options. libcurl has supported this since 7.52.0.

This requires OpenSSL 1.1.1 with TLS 1.3 enabled or curl built with
recent versions of NSS or BoringSSL as the TLS backend.

Signed-off-by: Loganaden Velvindron <logan@hackers.mu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-03-29 13:54:31 -07:00
Junio C Hamano
96608043d9 Merge branch 'bw/doc-submodule-recurse-config-with-clone'
Doc update.

* bw/doc-submodule-recurse-config-with-clone:
  submodule: indicate that 'submodule.recurse' doesn't apply to clone
2018-03-06 14:54:05 -08:00
Junio C Hamano
c1a7902f9a Merge branch 'ab/fetch-prune'
Clarify how configured fetch refspecs interact with the "--prune"
option of "git fetch", and also add a handy short-hand for getting
rid of stale tags that are locally held.

* ab/fetch-prune:
  fetch: make the --prune-tags work with <url>
  fetch: add a --prune-tags option and fetch.pruneTags config
  fetch tests: add scaffolding for the new fetch.pruneTags
  git-fetch & config doc: link to the new PRUNING section
  git remote doc: correct dangerous lies about what prune does
  git fetch doc: add a new section to explain the ins & outs of pruning
  fetch tests: fetch <url> <spec> as well as fetch [<remote>]
  fetch tests: expand case/esac for later change
  fetch tests: double quote a variable for interpolation
  fetch tests: test --prune and refspec interaction
  fetch tests: add a tag to be deleted to the pruning tests
  fetch tests: re-arrange arguments for future readability
  fetch tests: refactor in preparation for testing tag pruning
  remote: add a macro for "refs/tags/*:refs/tags/*"
  fetch: stop accessing "remote" variable indirectly
  fetch: trivially refactor assignment to ref_nr
  fetch: don't redundantly NULL something calloc() gave us
2018-03-06 14:54:01 -08:00
Brandon Williams
d88e92d4e0 submodule: indicate that 'submodule.recurse' doesn't apply to clone
Update the documentation for the 'submodule.recurse' config to identify
that the clone command does not respect it.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-21 10:45:06 -08:00
Junio C Hamano
6bed209a20 Merge branch 'jh/partial-clone'
The machinery to clone & fetch, which in turn involves packing and
unpacking objects, have been told how to omit certain objects using
the filtering mechanism introduced by the jh/object-filtering
topic, and also mark the resulting pack as a promisor pack to
tolerate missing objects, taking advantage of the mechanism
introduced by the jh/fsck-promisors topic.

* jh/partial-clone:
  t5616: test bulk prefetch after partial fetch
  fetch: inherit filter-spec from partial clone
  t5616: end-to-end tests for partial clone
  fetch-pack: restore save_commit_buffer after use
  unpack-trees: batch fetching of missing blobs
  clone: partial clone
  partial-clone: define partial clone settings in config
  fetch: support filters
  fetch: refactor calculation of remote list
  fetch-pack: test support excluding large blobs
  fetch-pack: add --no-filter
  fetch-pack, index-pack, transport: partial clone
  upload-pack: add object filtering for partial clone
2018-02-13 13:39:04 -08:00
Ævar Arnfjörð Bjarmason
97716d217c fetch: add a --prune-tags option and fetch.pruneTags config
Add a --prune-tags option to git-fetch, along with fetch.pruneTags
config option and a -P shorthand (-p is --prune). This allows for
doing any of:

    git fetch -p -P
    git fetch --prune --prune-tags
    git fetch -p -P origin
    git fetch --prune --prune-tags origin

Or simply:

    git config fetch.prune true &&
    git config fetch.pruneTags true &&
    git fetch

Instead of the much more verbose:

    git fetch --prune origin 'refs/tags/*:refs/tags/*' '+refs/heads/*:refs/remotes/origin/*'

Before this feature it was painful to support the use-case of pulling
from a repo which is having both its branches *and* tags deleted
regularly, and have our local references to reflect upstream.

At work we create deployment tags in the repo for each rollout, and
there's *lots* of those, so they're archived within weeks for
performance reasons.

Without this change it's hard to centrally configure such repos in
/etc/gitconfig (on servers that are only used for working with
them). You need to set fetch.prune=true globally, and then for each
repo:

    git -C {} config --replace-all remote.origin.fetch "refs/tags/*:refs/tags/*" "^\+*refs/tags/\*:refs/tags/\*$"

Now I can simply set fetch.pruneTags=true in /etc/gitconfig as well,
and users running "git pull" will automatically get the pruning
semantics I want.

Even though "git remote" has corresponding "prune" and "update
--prune" subcommands I'm intentionally not adding a corresponding
prune-tags or "update --prune --prune-tags" mode to that command.

It's advertised (as noted in my recent "git remote doc: correct
dangerous lies about what prune does") as only modifying remote
tracking references, whereas any --prune-tags option is always going
to modify what from the user's perspective is a local copy of the tag,
since there's no such thing as a remote tracking tag.

Ideally add_prune_tags_to_fetch_refspec() would be something that
would use ALLOC_GROW() to grow the 'fetch` member of the 'remote'
struct. Instead I'm realloc-ing remote->fetch and adding the
tag_refspec to the end.

The reason is that parse_{fetch,push}_refspec which allocate the
refspec (ultimately remote->fetch) struct are called many places that
don't have access to a 'remote' struct. It would be hard to change all
their callsites to be amenable to carry around the bookkeeping
variables required for dynamic allocation.

All the other callers of the API first incrementally construct the
string version of the refspec in remote->fetch_refspec via
add_fetch_refspec(), before finally calling parse_fetch_refspec() via
some variation of remote_get().

It's less of a pain to deal with the one special case that needs to
modify already constructed refspecs than to chase down and change all
the other callsites. The API I'm adding is intentionally not
generalized because if we add more of these we'd probably want to
re-visit how this is done.

See my "Re: [BUG] git remote prune removes local tags, depending on
fetch config" (87po6ahx87.fsf@evledraar.gmail.com;
https://public-inbox.org/git/87po6ahx87.fsf@evledraar.gmail.com/) for
more background info.

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-09 13:10:13 -08:00
Ævar Arnfjörð Bjarmason
627a129b46 git-fetch & config doc: link to the new PRUNING section
Amend the documentation for fetch.prune, fetch.<name>.prune and
--prune to link to the recently added PRUNING section.

I'd have liked to link directly to it with "<<PRUNING>>" from
fetch-options.txt, since it's included in git-fetch.txt (git-pull.txt
also includes it, but doesn't include that option). However making a
reference across files yields this error:

    [...]/Documentation/git-fetch.xml:226: element xref: validity
    error : IDREF attribute linkend references an unknown ID "PRUNING"

Signed-off-by: Ævar Arnfjörð Bjarmason <avarab@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2018-02-09 13:10:12 -08:00
Junio C Hamano
fa62d0392b Merge branch 'db/doc-config-section-names-with-bs'
Doc update.

* db/doc-config-section-names-with-bs:
  config.txt: document behavior of backslashes in subsections
2018-01-05 13:28:09 -08:00
Junio C Hamano
593fdcc06a Merge branch 'sr/http-sslverify-config-doc'
Docfix.

* sr/http-sslverify-config-doc:
  config: document default value of http.sslVerify
2017-12-28 14:08:49 -08:00
Junio C Hamano
0da2ba4880 Merge branch 'lb/rebase-i-short-command-names'
With a configuration variable rebase.abbreviateCommands set,
"git rebase -i" produces the todo list with a single-letter
command names.

* lb/rebase-i-short-command-names:
  sequencer.c: drop 'const' from function return type
  t3404: add test case for abbreviated commands
  rebase -i: learn to abbreviate command names
  rebase -i -x: add exec commands via the rebase--helper
  rebase -i: update functions to use a flags parameter
  rebase -i: replace reference to sha1 with oid
  rebase -i: refactor transform_todo_ids
  rebase -i: set commit to null in exec commands
  Documentation: use preferred name for the 'todo list' script
  Documentation: move rebase.* configs to new file
2017-12-27 11:16:21 -08:00
Dave Borowitz
1feb061701 config.txt: document behavior of backslashes in subsections
Unrecognized escape sequences are invalid in values:

  $ git config -f - --list <<EOF
  [foo]
    bar = "\t\\\y\"\u"
  EOF
  fatal: bad config line 2 in standard input

But in subsection names, the backslash is simply dropped if the
following character does not produce a recognized escape sequence:

  $ git config -f - --list <<EOF
  [foo "\t\\\y\"\u"]
    bar = baz
  EOF
  foo.t\y"u.bar=baz

Although it would be nice for subsection names and values to have
consistent behavior, changing the behavior for subsection names is a
nonstarter since it would cause existing, valid config files to
suddenly be interpreted differently.

Signed-off-by: Dave Borowitz <dborowitz@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-22 12:51:43 -08:00
Junio C Hamano
0c69a132cb Merge branch 'ls/editor-waiting-message'
Git shows a message to tell the user that it is waiting for the
user to finish editing when spawning an editor, in case the editor
opens to a hidden window or somewhere obscure and the user gets
lost.

* ls/editor-waiting-message:
  launch_editor(): indicate that Git waits for user input
  refactor "dumb" terminal determination
2017-12-19 11:33:59 -08:00
Junio C Hamano
66d3f19324 Merge branch 'tg/worktree-create-tracking'
The way "git worktree add" determines what branch to create from
where and checkout in the new worktree has been updated a bit.

* tg/worktree-create-tracking:
  add worktree.guessRemote config option
  worktree: add --guess-remote flag to add subcommand
  worktree: make add <path> <branch> dwim
  worktree: add --[no-]track option to the add subcommand
  worktree: add can be created from any commit-ish
  checkout: factor out functions to new lib file
2017-12-19 11:33:57 -08:00
Simon Ruderich
dec366c9a8 config: document default value of http.sslVerify
Remove any doubt that certificates might not be verified by
default.

Signed-off-by: Simon Ruderich <simon@ruderich.org>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-18 14:03:04 -08:00
Jeff Hostetler
10ac85c785 upload-pack: add object filtering for partial clone
Teach upload-pack to negotiate object filtering over the protocol and
to send filter parameters to pack-objects.  This is intended for partial
clone and fetch.

The idea to make upload-pack configurable using uploadpack.allowFilter
comes from Jonathan Tan's work in [1].

[1] https://public-inbox.org/git/f211093280b422c32cc1b7034130072f35c5ed51.1506714999.git.jonathantanmy@google.com/

Signed-off-by: Jeff Hostetler <jeffhost@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-08 09:58:51 -08:00
Lars Schneider
abfb04d0c7 launch_editor(): indicate that Git waits for user input
When a graphical GIT_EDITOR is spawned by a Git command that opens
and waits for user input (e.g. "git rebase -i"), then the editor window
might be obscured by other windows. The user might be left staring at
the original Git terminal window without even realizing that s/he needs
to interact with another window before Git can proceed. To this user Git
appears hanging.

Print a message that Git is waiting for editor input in the original
terminal and get rid of it when the editor returns, if the terminal
supports erasing the last line.  Also, make sure that our message is
terminated with a whitespace so that any message the editor may show
upon starting up will be kept separate from our message.

Power users might not want to see this message or their editor might
already print such a message (e.g. emacsclient). Allow these users to
suppress the message by disabling the "advice.waitingForEditor" config.

The standard advise() function is not used here as it would always add
a newline which would make deleting the message harder.

Helped-by: Junio C Hamano <gitster@pobox.com>
Signed-off-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-07 10:10:19 -08:00
Thomas Gummerer
e92445a731 add worktree.guessRemote config option
Some users might want to have the --guess-remote option introduced in
the previous commit on by default, so they don't have to type it out
every time they create a new worktree.

Add a config option worktree.guessRemote that allows users to configure
the default behaviour for themselves.

Signed-off-by: Thomas Gummerer <t.gummerer@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-06 09:47:35 -08:00
Junio C Hamano
ef47036444 Merge branch 'jn/ssh-wrappers'
The ssh-variant 'simple' introduced earlier broke existing
installations by not passing --port/-4/-6 and not diagnosing an
attempt to pass these as an error.  Instead, default to
automatically detect how compatible the GIT_SSH/GIT_SSH_COMMAND is
to OpenSSH convention and then error out an invocation to make it
easier to diagnose connection errors.

* jn/ssh-wrappers:
  connect: correct style of C-style comment
  ssh: 'simple' variant does not support --port
  ssh: 'simple' variant does not support -4/-6
  ssh: 'auto' variant to select between 'ssh' and 'simple'
  connect: split ssh option computation to its own function
  connect: split ssh command line options into separate function
  connect: split git:// setup into a separate function
  connect: move no_fork fallback to git_tcp_connect
  ssh test: make copy_ssh_wrapper_as clean up after itself
2017-12-06 09:23:45 -08:00
Junio C Hamano
4c6dad0059 Merge branch 'bw/protocol-v1'
A new mechanism to upgrade the wire protocol in place is proposed
and demonstrated that it works with the older versions of Git
without harming them.

* bw/protocol-v1:
  Documentation: document Extra Parameters
  ssh: introduce a 'simple' ssh variant
  i5700: add interop test for protocol transition
  http: tell server that the client understands v1
  connect: tell server that the client understands v1
  connect: teach client to recognize v1 server response
  upload-pack, receive-pack: introduce protocol version 1
  daemon: recognize hidden request arguments
  protocol: introduce protocol extension mechanisms
  pkt-line: add packet_write function
  connect: in ref advertisement, shallows are last
2017-12-06 09:23:44 -08:00
Liam Beguin
946a9f20b4 Documentation: move rebase.* configs to new file
Move all rebase.* configuration variables to a separate file in order to
remove duplicates, and include it in config.txt and git-rebase.txt.  The
new descriptions are mostly taken from config.txt as they are more
verbose.

Signed-off-by: Liam Beguin <liambeguin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-12-04 09:02:21 -08:00
Junio C Hamano
f3f671b928 Merge branch 'rv/sendemail-tocmd-in-config-and-completion'
Teach "sendemail.tocmd" to places that know about "sendemail.to",
like documentation and shell completion (in contrib/).

* rv/sendemail-tocmd-in-config-and-completion:
  completion: add git config sendemail.tocmd
  Documentation/config: add sendemail.tocmd to list preceding "See git-send-email(1)"
2017-11-27 11:06:32 +09:00
Junio C Hamano
e05336bdda Merge branch 'bp/fsmonitor'
We learned to talk to watchman to speed up "git status" and other
operations that need to see which paths have been modified.

* bp/fsmonitor:
  fsmonitor: preserve utf8 filenames in fsmonitor-watchman log
  fsmonitor: read entirety of watchman output
  fsmonitor: MINGW support for watchman integration
  fsmonitor: add a performance test
  fsmonitor: add a sample integration script for Watchman
  fsmonitor: add test cases for fsmonitor extension
  split-index: disable the fsmonitor extension when running the split index test
  fsmonitor: add a test tool to dump the index extension
  update-index: add fsmonitor support to update-index
  ls-files: Add support in ls-files to display the fsmonitor valid bit
  fsmonitor: add documentation for the fsmonitor extension.
  fsmonitor: teach git to optionally utilize a file system monitor to speed up detecting new or changed files.
  update-index: add a new --force-write-index option
  preload-index: add override to enable testing preload-index
  bswap: add 64 bit endianness helper get_be64
2017-11-21 14:07:50 +09:00
Jonathan Nieder
0da0e49ba1 ssh: 'auto' variant to select between 'ssh' and 'simple'
Android's "repo" tool is a tool for managing a large codebase
consisting of multiple smaller repositories, similar to Git's
submodule feature.  Starting with Git 94b8ae5a (ssh: introduce a
'simple' ssh variant, 2017-10-16), users noticed that it stopped
handling the port in ssh:// URLs.

The cause: when it encounters ssh:// URLs, repo pre-connects to the
server and sets GIT_SSH to a helper ".repo/repo/git_ssh" that reuses
that connection.  Before 94b8ae5a, the helper was assumed to support
OpenSSH options for lack of a better guess and got passed a -p option
to set the port.  After that patch, it uses the new default of a
simple helper that does not accept an option to set the port.

The next release of "repo" will set GIT_SSH_VARIANT to "ssh" to avoid
that.  But users of old versions and of other similar GIT_SSH
implementations would not get the benefit of that fix.

So update the default to use OpenSSH options again, with a twist.  As
observed in 94b8ae5a, we cannot assume that $GIT_SSH always handles
OpenSSH options: common helpers such as travis-ci's dpl[*] are
configured using GIT_SSH and do not accept OpenSSH options.  So make
the default a new variant "auto", with the following behavior:

 1. First, check for a recognized basename, like today.

 2. If the basename is not recognized, check whether $GIT_SSH supports
    OpenSSH options by running

	$GIT_SSH -G <options> <host>

    This returns status 0 and prints configuration in OpenSSH if it
    recognizes all <options> and returns status 255 if it encounters
    an unrecognized option.  A wrapper script like

	exec ssh -- "$@"

    would fail with

	ssh: Could not resolve hostname -g: Name or service not known

    , correctly reflecting that it does not support OpenSSH options.
    The command is run with stdin, stdout, and stderr redirected to
    /dev/null so even a command that expects a terminal would exit
    immediately.

 3. Based on the result from step (2), behave like "ssh" (if it
    succeeded) or "simple" (if it failed).

This way, the default ssh variant for unrecognized commands can handle
both the repo and dpl cases as intended.

This autodetection has been running on Google workstations since
2017-10-23 with no reported negative effects.

[*] 6c3fddfda1/lib/dpl/provider.rb (L215)

Reported-by: William Yan <wyan@google.com>
Improved-by: Jonathan Tan <jonathantanmy@google.com>
Signed-off-by: Jonathan Nieder <jrnieder@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-21 14:01:03 +09:00
Junio C Hamano
4a1ddb561c Merge branch 'sb/blame-config-doc' into maint
Description of blame.{showroot,blankboundary,showemail,date}
configuration variables have been added to "git config --help".

* sb/blame-config-doc:
  config: document blame configuration
2017-11-15 12:04:59 +09:00
Rasmus Villemoes
1b39687784 Documentation/config: add sendemail.tocmd to list preceding "See git-send-email(1)"
Signed-off-by: Rasmus Villemoes <rv@rasmusvillemoes.dk>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-14 15:41:59 +09:00
Junio C Hamano
4da9f598e6 Merge branch 'sb/blame-config-doc'
Description of blame.{showroot,blankboundary,showemail,date}
configuration variables have been added to "git config --help".

* sb/blame-config-doc:
  config: document blame configuration
2017-11-09 14:31:25 +09:00
Junio C Hamano
c692fe2c1e Merge branch 'mp/push-pushoption-config'
The "--push-option=<string>" option to "git push" now defaults to a
list of strings configured via push.pushOption variable.

* mp/push-pushoption-config:
  builtin/push.c: add push.pushOption config
2017-11-06 14:24:30 +09:00
Stefan Beller
de0bc11d13 config: document blame configuration
The options are currently only referenced by the git-blame man page,
also explain them in git-config, which is the canonical page to
contain all config options.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-11-06 10:13:15 +09:00
Marius Paliga
d8052750c5 builtin/push.c: add push.pushOption config
Push options need to be given explicitly, via the command line as "git
push --push-option <option>".  Add the config option push.pushOption,
which is a multi-valued option, containing push options that are sent
by default.

When push options are set in the lower-priority configulation file
(e.g. /etc/gitconfig, or $HOME/.gitconfig), they can be unset later in
the more specific repository config by the empty string.

Add tests and update documentation as well.

Signed-off-by: Marius Paliga <marius.paliga@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-24 09:57:54 +09:00
Junio C Hamano
1c0b983a77 Merge branch 'jk/ref-filter-colors-fix'
This is the "theoretically more correct" approach of simply
stepping back to the state before plumbing commands started paying
attention to "color.ui" configuration variable.

Let's run with this one.

* jk/ref-filter-colors-fix:
  tag: respect color.ui config
  Revert "color: check color.ui in git_default_config()"
  Revert "t6006: drop "always" color config tests"
  Revert "color: make "always" the same as "auto" in config"
2017-10-18 10:19:08 +09:00
Jeff King
2c1acdf6c9 Revert "color: make "always" the same as "auto" in config"
This reverts commit 6be4595edb.

That commit weakened the "always" setting of color config so
that it acted as "auto". This was meant to solve regressions
in v2.14.2 in which setting "color.ui=always" in the on-disk
config broke scripts like add--interactive, because the
plumbing diff commands began to generate color output.

This was due to 136c8c8b8f (color: check color.ui in
git_default_config(), 2017-07-13), which was in turn trying
to fix issues caused by 4c7f1819b3 (make color.ui default to
'auto', 2013-06-10). But in weakening "always", we created
even more problems, as people expect to be able to use "git
-c color.ui=always" to force color (especially because some
commands don't have their own --color flag). We can fix that
by special-casing the command-line "-c", but now things are
getting pretty confusing.

Instead of piling hacks upon hacks, let's start peeling off
the hacks. The first step is dropping the weakening of
"always", which this revert does.

Note that we could actually revert the whole series merged
in by da15b78e52. Most of that
series consists of preparations to the tests to handle the
weakening of "-c color.ui=always". But it's worth keeping
for a few reasons:

  - there are some other preparatory cleanups, like
    e433749d86 (test-terminal: set TERM=vt100, 2017-10-03)

  - it adds "--color" options more consistently in
    0c88bf5050 (provide --color option for all ref-filter
    users, 2017-10-03)

  - some of the cases dropping "-c" end up being more robust
    and realistic tests, as in 01c94e9001 (t7508: use
    test_terminal for color output, 2017-10-03)

  - the preferred tool for overriding config is "--color",
    and we should be modeling that consistently

We can individually revert the few commits necessary to
restore some useful tests (which will be done on top of this
patch).

Note that this isn't a pure revert; we'll keep the test
added in t3701, but mark it as failure for now.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-17 15:08:51 +09:00
Junio C Hamano
433d62fea9 Merge branch 'jk/ui-color-always-to-auto-maint' (early part) into jk/ref-filter-colors-fix-maint
* 'jk/ui-color-always-to-auto-maint' (early part):
  color: make "always" the same as "auto" in config
  provide --color option for all ref-filter users
  t3205: use --color instead of color.branch=always
  t3203: drop "always" color test
  t6006: drop "always" color config tests
  t7502: use diff.noprefix for --verbose test
  t7508: use test_terminal for color output
  t3701: use test-terminal to collect color output
  t4015: prefer --color to -c color.diff=always
  test-terminal: set TERM=vt100
2017-10-17 15:08:31 +09:00
Brandon Williams
94b8ae5aca ssh: introduce a 'simple' ssh variant
When using the 'ssh' transport, the '-o' option is used to specify an
environment variable which should be set on the remote end.  This allows
git to send additional information when contacting the server,
requesting the use of a different protocol version via the
'GIT_PROTOCOL' environment variable like so: "-o SendEnv=GIT_PROTOCOL".

Unfortunately not all ssh variants support the sending of environment
variables to the remote end.  To account for this, only use the '-o'
option for ssh variants which are OpenSSH compliant.  This is done by
checking that the basename of the ssh command is 'ssh' or the ssh
variant is overridden to be 'ssh' (via the ssh.variant config).

Other options like '-p' and '-P', which are used to specify a specific
port to use, or '-4' and '-6', which are used to indicate that IPV4 or
IPV6 addresses should be used, may also not be supported by all ssh
variants.

Currently if an ssh command's basename wasn't 'plink' or
'tortoiseplink' git assumes that the command is an OpenSSH variant.
Since user configured ssh commands may not be OpenSSH compliant, tighten
this constraint and assume a variant of 'simple' if the basename of the
command doesn't match the variants known to git.  The new ssh variant
'simple' will only have the host and command to execute ([username@]host
command) passed as parameters to the ssh command.

Update the Documentation to better reflect the command-line options sent
to ssh commands based on their variant.

Reported-by: Jeffrey Yasskin <jyasskin@google.com>
Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-17 10:51:30 +09:00
Brandon Williams
373d70efb2 protocol: introduce protocol extension mechanisms
Create protocol.{c,h} and provide functions which future servers and
clients can use to determine which protocol to use or is being used.

Also introduce the 'GIT_PROTOCOL' environment variable which will be
used to communicate a colon separated list of keys with optional values
to a server.  Unknown keys and values must be tolerated.  This mechanism
is used to communicate which version of the wire protocol a client would
like to use with a server.

Signed-off-by: Brandon Williams <bmwill@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-17 10:51:29 +09:00
Damien Marié
f805a00a39 run-command: add hint when a hook is ignored
When an hook is present but the file is not set as executable then git will
ignore the hook.
For now this is silent which can be confusing.

This commit adds this warning to improve the situation:

  hint: The 'pre-commit' hook was ignored because it's not set as executable.
  hint: You can disable this warning with `git config advice.ignoredHook false`

To allow the old use-case of enabling/disabling hooks via the executable flag a
new setting is introduced: advice.ignoredHook.

Signed-off-by: Damien Marié <damien@dam.io>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-10 13:21:46 +09:00
Junio C Hamano
aebd23506e Merge branch 'jk/ui-color-always-to-auto-maint' into jk/ui-color-always-to-auto
* jk/ui-color-always-to-auto-maint:
  color: make "always" the same as "auto" in config
  provide --color option for all ref-filter users
  t3205: use --color instead of color.branch=always
  t3203: drop "always" color test
  t6006: drop "always" color config tests
  t7502: use diff.noprefix for --verbose test
  t7508: use test_terminal for color output
  t3701: use test-terminal to collect color output
  t4015: prefer --color to -c color.diff=always
  test-terminal: set TERM=vt100
2017-10-04 12:04:47 +09:00
Jeff King
6be4595edb color: make "always" the same as "auto" in config
It can be handy to use `--color=always` (or it's synonym
`--color`) on the command-line to convince a command to
produce color even if it's stdout isn't going to the
terminal or a pager.

What's less clear is whether it makes sense to set config
variables like color.ui to `always`. For a one-shot like:

  git -c color.ui=always ...

it's potentially useful (especially if the command doesn't
directly support the `--color` option). But setting `always`
in your on-disk config is much muddier, as you may be
surprised when piped commands generate colors (and send them
to whatever is consuming the pipe downstream).

Some people have done this anyway, because:

  1. The documentation for color.ui makes it sound like
     using `always` is a good idea, when you almost
     certainly want `auto`.

  2. Traditionally not every command (and especially not
     plumbing) respected color.ui in the first place. So
     the confusion came up less frequently than it might
     have.

The situation changed in 136c8c8b8f (color: check color.ui
in git_default_config(), 2017-07-13), which negated point
(2): now scripts using only plumbing commands (like
add-interactive) are broken by this setting.

That commit was fixing real issues (e.g., by making
`color.ui=never` work, since `auto` is the default), so we
don't want to just revert it.  We could turn `always` into a
noop in plumbing commands, but that creates a hard-to-explain
inconsistency between the plumbing and other commands.

Instead, let's just turn `always` into `auto` for all config.
This does break the "one-shot" config shown above, but again,
we're probably better to have simple and consistent rules than
to try to special-case command-line config.

There is one place where `always` should retain its meaning:
on the command line, `--color=always` should continue to be
the same as `--color`, overriding any isatty checks. Since the
command-line parser also depends on git_config_colorbool(), we
can use the existence of the "var" string to deterine whether
we are serving the command-line or the config.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-04 11:35:30 +09:00
Ben Peart
780494b1f5 fsmonitor: add documentation for the fsmonitor extension.
This includes the core.fsmonitor setting, the fsmonitor integration hook,
and the fsmonitor index extension.

Also add documentation for the new fsmonitor options to ls-files and
update-index.

Signed-off-by: Ben Peart <benpeart@microsoft.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-10-01 17:23:05 +09:00
Stefan Beller
d3a44f637e Documentation/config: clarify the meaning of submodule.<name>.update
With more commands (that potentially change a submodule) paying attention
to submodules as well as the recent discussion[1] on
submodule.<name>.update, let's spell out that submodule.<name>.update
is strictly to be used for configuring the "submodule update" command
and not to be obeyed by other commands.

These other commands usually have a strict meaning of what they should
do (i.e. checkout, reset, rebase, merge) as well as have their name
overlapping with the modes possible for submodule.<name>.update.

[1] https://public-inbox.org/git/4283F0B0-BC1C-4ED1-8126-7E512D84484B@gmail.com/
    submodule.<name>.update was set to "none", triggering unexpected
    behavior as the submodule was thought to never be touched.
    However a newer version of Git taught 'git pull --rebase' to also
    populate and rebase submodules if they were active.
    The newer options such as submodule.active and command specific
    flags would not have triggered unexpected behavior.

Reported-by: Lars Schneider <larsxschneider@gmail.com>
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-09-24 10:41:47 +09:00
Junio C Hamano
5e03ae4594 Merge branch 'jk/doc-the-this' into maint
Doc clean-up.

* jk/doc-the-this:
  doc: fix typo in sendemail.identity
2017-09-10 17:03:07 +09:00
Junio C Hamano
b438722c06 Merge branch 'ah/doc-empty-string-is-false' into maint
Doc update.

* ah/doc-empty-string-is-false:
  doc: clarify "config --bool" behaviour with empty string
2017-09-10 17:03:03 +09:00
Junio C Hamano
f2dd90fc1c Merge branch 'mh/ref-lock-entry'
The code to acquire a lock on a reference (e.g. while accepting a
push from a client) used to immediately fail when the reference is
already locked---now it waits for a very short while and retries,
which can make it succeed if the lock holder was holding it during
a read-only operation.

* mh/ref-lock-entry:
  refs: retry acquiring reference locks for 100ms
2017-08-26 22:55:09 -07:00
Junio C Hamano
96352ef9b4 Merge branch 'jc/cutoff-config'
"[gc] rerereResolved = 5.days" used to be invalid, as the variable
is defined to take an integer counting the number of days.  It now
is allowed.

* jc/cutoff-config:
  rerere: allow approxidate in gc.rerereResolved/gc.rerereUnresolved
  rerere: represent time duration in timestamp_t internally
  t4200: parameterize "rerere gc" custom expiry test
  t4200: gather "rerere gc" together
  t4200: make "rerere gc" test more robust
  t4200: give us a clean slate after "rerere gc" tests
2017-08-26 22:55:08 -07:00
Junio C Hamano
b6c4058f97 Merge branch 'sb/diff-color-move'
"git diff" has been taught to optionally paint new lines that are
the same as deleted lines elsewhere differently from genuinely new
lines.

* sb/diff-color-move: (25 commits)
  diff: document the new --color-moved setting
  diff.c: add dimming to moved line detection
  diff.c: color moved lines differently, plain mode
  diff.c: color moved lines differently
  diff.c: buffer all output if asked to
  diff.c: emit_diff_symbol learns about DIFF_SYMBOL_SUMMARY
  diff.c: emit_diff_symbol learns about DIFF_SYMBOL_STAT_SEP
  diff.c: convert word diffing to use emit_diff_symbol
  diff.c: convert show_stats to use emit_diff_symbol
  diff.c: convert emit_binary_diff_body to use emit_diff_symbol
  submodule.c: migrate diff output to use emit_diff_symbol
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_REWRITE_DIFF
  diff.c: emit_diff_symbol learns about DIFF_SYMBOL_BINARY_FILES
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_HEADER
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_FILEPAIR_{PLUS, MINUS}
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_CONTEXT_INCOMPLETE
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_WORDS[_PORCELAIN]
  diff.c: migrate emit_line_checked to use emit_diff_symbol
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_NO_LF_EOF
  diff.c: emit_diff_symbol learns DIFF_SYMBOL_CONTEXT_FRAGINFO
  ...
2017-08-26 22:55:03 -07:00
Junio C Hamano
16e842bcf5 Merge branch 'jk/doc-the-this'
Doc clean-up.

* jk/doc-the-this:
  doc: fix typo in sendemail.identity
2017-08-24 10:20:04 -07:00
Junio C Hamano
76be4487f0 Merge branch 'ah/doc-empty-string-is-false'
Doc update.

* ah/doc-empty-string-is-false:
  doc: clarify "config --bool" behaviour with empty string
2017-08-23 14:13:08 -07:00
Michael Haggerty
4ff0f01cb7 refs: retry acquiring reference locks for 100ms
The philosophy of reference locking has been, "if another process is
changing a reference, then whatever I'm trying to do to it will
probably fail anyway because my old-SHA-1 value is probably no longer
current". But this argument falls down if the other process has locked
the reference to do something that doesn't actually change the value
of the reference, such as `pack-refs` or `reflog expire`. There
actually *is* a decent chance that a planned reference update will
still be able to go through after the other process has released the
lock.

So when trying to lock an individual reference (e.g., when creating
"refs/heads/master.lock"), if it is already locked, then retry the
lock acquisition for approximately 100 ms before giving up. This
should eliminate some unnecessary lock conflicts without wasting a lot
of time.

Add a configuration setting, `core.filesRefLockTimeout`, to allow this
setting to be tweaked.

Note: the function `get_files_ref_lock_timeout_ms()` cannot be private
to the files backend because it is also used by `write_pseudoref()`
and `delete_pseudoref()`, which are defined in `refs.c` so that they
can be used by other reference backends.

Signed-off-by: Michael Haggerty <mhagger@alum.mit.edu>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-08-23 10:37:21 -07:00
Junio C Hamano
6e96cb5286 rerere: allow approxidate in gc.rerereResolved/gc.rerereUnresolved
These two configuration variables are described in the documentation
to take an expiry period expressed in the number of days:

    gc.rerereResolved::
	    Records of conflicted merge you resolved earlier are
	    kept for this many days when 'git rerere gc' is run.
	    The default is 60 days.

    gc.rerereUnresolved::
	    Records of conflicted merge you have not resolved are
	    kept for this many days when 'git rerere gc' is run.
	    The default is 15 days.

There is no strong reason not to allow a more general "approxidate"
expiry specification, e.g. "5.days.ago", or "never".

Rename the config_get_expiry() helper introduced in the previous
step to git_config_get_expiry_in_days() and move it to a more
generic place, config.c, and use date.c::parse_expiry_date() to do
so.  Give it an ability to allow the caller to tell among three
cases (i.e. there is no "gc.rerereResolved" config, there is and it
is correctly parsed into the *expiry variable, and there was an
error in parsing the given value).  The current caller can work
correctly without using the return value, though.

In the future, we may find other variables that only allow an
integer that specifies "this many days" or other unit of time, and
when it happens we may need to drop "_days" suffix from the name of
the function and instead pass the "scale" value as another parameter.

But this will do for now.

Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-08-22 14:51:02 -07:00
Jeff King
4e36907fa3 doc: fix typo in sendemail.identity
Saying "the this" is an obvious typo. But while we're here,
let's polish the English on the second half of the sentence,
too.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-08-20 10:07:06 -07:00
Andreas Heiduk
7f0a02be2f doc: clarify "config --bool" behaviour with empty string
`git config --bool xxx.yyy` returns `true` for `[xxx]yyy` but
`false` for `[xxx]yyy=` or `[xxx]yyy=""`.  This is tested in
t1300-repo-config.sh since 09bc098c2.

Signed-off-by: Andreas Heiduk <asheiduk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-08-14 15:47:56 -07:00
Junio C Hamano
eb37527ab0 Merge branch 'xz/send-email-batch-size'
"git send-email" learned to overcome some SMTP server limitation
that does not allow many pieces of e-mails to be sent over a single
session.

* xz/send-email-batch-size:
  send-email: --batch-size to work around some SMTP server limit
2017-07-06 18:14:46 -07:00
xiaoqiang zhao
5453b83bdf send-email: --batch-size to work around some SMTP server limit
Some email servers (e.g. smtp.163.com) limit the number emails to be
sent per session (connection) and this will lead to a faliure when
sending many messages.

Teach send-email to disconnect after sending a number of messages
(configurable via the --batch-size=<num> option), wait for a few
seconds (configurable via the --relogin-delay=<seconds> option) and
reconnect, to work around such a limit.

Also add two configuration variables to give these options the default.

Note:

  We will use this as a band-aid for now, but in the longer term, we
  should look at and react to the SMTP error code from the server;
  Xianqiang reports that 450 and 451 are returned by problematic
  servers.

  cf. https://public-inbox.org/git/7993e188.d18d.15c3560bcaf.Coremail.zxq_yx_007@163.com/

Signed-off-by: xiaoqiang zhao <zxq_yx_007@163.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-07-05 09:09:45 -07:00
Stefan Beller
61e89eaae8 diff: document the new --color-moved setting
Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-30 13:59:42 -07:00
Junio C Hamano
e25a76721c Merge branch 'dt/raise-core-packed-git-limit'
Doc update for a topic already in 'master'.

* dt/raise-core-packed-git-limit:
  docs: update 64-bit core.packedGitLimit default
2017-06-26 14:09:30 -07:00
Junio C Hamano
849b44cdf1 Merge branch 'lb/status-stash-count'
"git status" learned to optionally give how many stash entries the
user has in its output.

* lb/status-stash-count:
  glossary: define 'stash entry'
  status: add optional stash count information
  stash: update documentation to use 'stash entry'
2017-06-26 14:09:29 -07:00
Junio C Hamano
cda4ba30b1 Merge branch 'jk/warn-add-gitlink'
Using "git add d/i/r" when d/i/r is the top of the working tree of
a separate repository would create a gitlink in the index, which
would appear as a not-quite-initialized submodule to others.  We
learned to give warnings when this happens.

* jk/warn-add-gitlink:
  t: move "git add submodule" into test blocks
  add: warn when adding an embedded repository
2017-06-24 14:28:41 -07:00
Jeff King
b24a8db14a docs: update 64-bit core.packedGitLimit default
We bumped the default in be4ca2905 (Increase
core.packedGitLimit, 2017-04-20) but never adjusted the
documentation to match.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-21 09:39:57 -07:00
Liam Beguin
c1b5d0194b status: add optional stash count information
Introduce '--show-stash' and its configuration option 'status.showStash'
to allow git-status to show information about currently stashed entries.

Signed-off-by: Liam Beguin <liambeguin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-18 22:17:47 -07:00
Liam Beguin
e01db917d8 stash: update documentation to use 'stash entry'
Most of the time, a 'stash entry' is called a 'stash'. Lets try to make
this more consistent and use 'stash entry' instead.

Signed-off-by: Liam Beguin <liambeguin@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-18 22:16:36 -07:00
Jeff King
532139940c add: warn when adding an embedded repository
It's an easy mistake to add a repository inside another
repository, like:

  git clone $url
  git add .

The resulting entry is a gitlink, but there's no matching
.gitmodules entry. Trying to use "submodule init" (or clone
with --recursive) doesn't do anything useful. Prior to
v2.13, such an entry caused git-submodule to barf entirely.
In v2.13, the entry is considered "inactive" and quietly
ignored. Either way, no clone of your repository can do
anything useful with the gitlink without the user manually
adding the submodule config.

In most cases, the user probably meant to either add a real
submodule, or they forgot to put the embedded repository in
their .gitignore file.

Let's issue a warning when we see this case. There are a few
things to note:

  - the warning will go in the git-add porcelain; anybody
    wanting to do low-level manipulation of the index is
    welcome to create whatever funny states they want.

  - we detect the case by looking for a newly added gitlink;
    updates via "git add submodule" are perfectly reasonable,
    and this avoids us having to investigate .gitmodules
    entirely

  - there's a command-line option to suppress the warning.
    This is needed for git-submodule itself (which adds the
    entry before adding any submodule config), but also
    provides a mechanism for other scripts doing
    submodule-like things.

We could make this a hard error instead of a warning.
However, we do add lots of sub-repos in our test suite. It's
not _wrong_ to do so. It just creates a state where users
may be surprised. Pointing them in the right direction with
a gentle hint is probably the best option.

There is a config knob that can disable the (long) hint. But
I intentionally omitted a config knob to disable the warning
entirely. Whether the warning is sensible or not is
generally about context, not about the user's preferences.
If there's a tool or workflow that adds gitlinks without
matching .gitmodules, it should probably be taught about the
new command-line option, rather than blanket-disabling the
warning.

Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-15 09:10:44 -07:00
Junio C Hamano
3c548de378 Merge branch 'sb/submodule-blanket-recursive'
Many commands learned to pay attention to submodule.recurse
configuration.

* sb/submodule-blanket-recursive:
  builtin/fetch.c: respect 'submodule.recurse' option
  builtin/push.c: respect 'submodule.recurse' option
  builtin/grep.c: respect 'submodule.recurse' option
  Introduce 'submodule.recurse' option for worktree manipulators
  submodule loading: separate code path for .gitmodules and config overlay
  reset/checkout/read-tree: unify config callback for submodule recursion
  submodule test invocation: only pass additional arguments
  submodule recursing: do not write a config variable twice
2017-06-13 13:47:07 -07:00
Junio C Hamano
ec8455eb26 Merge branch 'jk/url-insteadof-config'
The interaction of "url.*.insteadOf" and custom URL scheme's
whitelisting is now documented better.

* jk/url-insteadof-config:
  docs/config: mention protocol implications of url.insteadOf
2017-06-04 09:55:45 +09:00
Junio C Hamano
95173a5663 Merge branch 'ah/doc-rev-parse-short-default'
Doc update.

* ah/doc-rev-parse-short-default:
  doc: rewrite description for rev-parse --short
2017-06-04 09:55:45 +09:00
Andreas Heiduk
fb87327aee doc: rewrite description for rev-parse --short
`git rev-parse --short` is not a generic modifier but just a variant
of `--verify` and considers the given length only as a suggestion to
ensure uniqueness.

Signed-off-by: Andreas Heiduk <asheiduk@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-01 10:37:42 +09:00
Stefan Beller
046b48239e Introduce 'submodule.recurse' option for worktree manipulators
Any command that understands '--recurse-submodules' can have its
default changed to true, by setting the new 'submodule.recurse'
option.

This patch includes read-tree/checkout/reset for working tree
manipulating commands. Later patches will cover other commands.

Signed-off-by: Stefan Beller <sbeller@google.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-01 10:36:36 +09:00
Jeff King
2c9a2ae285 docs/config: mention protocol implications of url.insteadOf
If a URL rewrite switches the protocol to something
nonstandard (like "persistent-https" for "https"), the user
may be bitten by the fact that the default protocol
restrictions are different between the two. Let's drop a
note in insteadOf that points the user in the right
direction.

It would be nice if we could make this work out of the box,
but we can't without knowing the security implications of
the user's rewrite. Only the documentation for a particular
remote helper can advise one way or the other. Since we do
include the persistent-https helper in contrib/ (and since
it was the helper in the real-world case that inspired that
patch), let's also drop a note there.

Suggested-by: Elliott Cable <me@ell.io>
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2017-06-01 10:07:10 +09:00
Junio C Hamano
b784d0be5d Merge branch 'ab/conditional-config-with-symlinks'
The recently introduced "[includeIf "gitdir:$dir"] path=..."
mechansim has further been taught to take symlinks into account.
The directory "$dir" specified in "gitdir:$dir" may be a symlink to
a real location, not something that $(getcwd) may return.  In such
a case, a realpath of "$dir" is compared with the real path of the
current repository to determine if the contents from the named path
should be included.

* ab/conditional-config-with-symlinks:
  config: match both symlink & realpath versions in IncludeIf.gitdir:*
2017-05-30 11:16:44 +09:00