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Advice hints must be disabled individually by setting the relevant
advice.* variables to false in the Git configuration. For server-side
and scripted usages of Git where hints can be a hindrance, it can be
cumbersome to maintain configuration to ensure all advice hints are
disabled in perpetuity. This is a particular concern in tests, where
new or changed hints can result in failed assertions.
Add a --no-advice global option to disable all advice hints from being
displayed. This is independent of the toggles for individual advice
hints. Use an internal environment variable (GIT_ADVICE) to ensure this
configuration is propagated to the usage site, even if it executes in a
subprocess.
Signed-off-by: James Liu <james@jamesliu.io>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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core.commentChar used to be limited to a single byte, but has been
updated to allow an arbitrary multi-byte sequence.
* jk/core-comment-string:
config: add core.commentString
config: allow multi-byte core.commentChar
environment: drop comment_line_char compatibility macro
wt-status: drop custom comment-char stringification
sequencer: handle multi-byte comment characters when writing todo list
find multi-byte comment chars in unterminated buffers
find multi-byte comment chars in NUL-terminated strings
prefer comment_line_str to comment_line_char for printing
strbuf: accept a comment string for strbuf_add_commented_lines()
strbuf: accept a comment string for strbuf_commented_addf()
strbuf: accept a comment string for strbuf_stripspace()
environment: store comment_line_char as a string
strbuf: avoid shadowing global comment_line_char name
commit: refactor base-case of adjust_comment_line_char()
strbuf: avoid static variables in strbuf_add_commented_lines()
strbuf: simplify comment-handling in add_lines() helper
config: forbid newline as core.commentChar
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There is no longer any code which references the single-byte
comment_line_char. Let's drop it, clearing the way for true multi-byte
entries in comment_line_str.
It's possible there are topics in flight that have added new references
to comment_line_char. But we would prefer to fail compilation (and then
fix it) upon merging with this, rather than have them quietly ignore the
bytes after the first.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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We'd like to eventually support multi-byte comment prefixes, but the
comment_line_char variable is referenced in many spots, making the
transition difficult.
Let's start by storing the character in a NUL-terminated string. That
will let us switch code over incrementally to the string format, and we
can easily support the existing code with a macro wrapper (since we'll
continue to allow only a single-byte prefix, this will behave
identically).
Once all references to the "char" variable have been converted, we can
drop it and enable longer strings.
We'll still have to touch all of the spots that create or set the
variable in this patch, but there are only a few (reading the config,
and the "auto" character selector).
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Modeling after how the `--no-replace-objects` option is made usable
across subprocess spawning (e.g., cURL based remote helpers are
spawned as a separate process while running "git fetch"), allow the
`--no-lazy-fetch` option to be passed across process boundaries.
Do not model how the value of GIT_NO_REPLACE_OBJECTS environment
variable is ignored, though. Just use the usual git_env_bool() to
allow "export GIT_NO_LAZY_FETCH=0" and "unset GIT_NO_LAZY_FETCH"
to be equivalents.
Also do not model how the request is not propagated to subprocesses
we spawn (e.g. "git clone --local" that spawns a new process to work
in the origin repository, while the original one working in the
newly created one) by the "--no-replace-objects" option, as this "do
not lazily fetch from the promisor" is more about a per-request
debugging aid, not "this repository's promisor should not be relied
upon" property specific to a repository.
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Most of our tree traversal algorithms use recursion to visit sub-trees.
For pathologically large trees, this can cause us to run out of stack
space and abort in an uncontrolled way. Let's put our own limit here so
that we can fail gracefully rather than segfaulting.
In similar cases where we recursed along the commit graph, we rewrote
the algorithms to avoid recursion and keep any stack data on the heap.
But the commit graph is meant to grow without bound, whereas it's not an
imposition to put a limit on the maximum size of tree we'll handle.
And this has a bonus side effect: coupled with a limit on individual
tree entry names, this limits the total size of a path we may encounter.
This gives us an extra protection against code handling long path names
which may suffer from integer overflows in the size (which could then be
exploited by malicious trees).
The default of 4096 is set to be much longer than anybody would care
about in the real world. Even with single-letter interior tree names
(like "a/b/c"), such a path is at least 8191 bytes. While most operating
systems will let you create such a path incrementally, trying to
reference the whole thing in a system call (as Git would do when
actually trying to access it) will result in ENAMETOOLONG. Coupled with
the recent fsck.largePathname warning, the maximum total pathname Git
will handle is (by default) 16MB.
This config option doesn't do anything yet; future patches will convert
various algorithms to respect the limit.
Signed-off-by: Jeff King <peff@peff.net>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Command line parser fix.
* rs/pack-objects-parseopt-fix:
pack-objects: fix --no-quiet
pack-objects: fix --no-keep-true-parents
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Since 99fb6e04cb (pack-objects: convert to use parse_options(),
2012-02-01) git pack-objects has accepted --no-keep-true-parents, but
this option does the same as --keep-true-parents. That's because it's
defined using OPT_SET_INT with a value of 0, which sets 0 when negated
as well.
Turn --no-keep-true-parents into the opposite of --keep-true-parents by
using OPT_BOOL and storing the option's status directly in a variable
named "grafts_keep_true_parents" instead of in negative form in
"grafts_replace_parents".
Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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For the functions defined in read-cache.c, move their declarations from
cache.h to a new header, read-cache-ll.h. Also move some related inline
functions from cache.h to read-cache.h. The purpose of the
read-cache-ll.h/read-cache.h split is that about 70% of the sites don't
need the inline functions and the extra headers they include.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Move 'repository_format_worktree_config' out of the global scope and into
the 'repository' struct. This change is similar to how
'repository_format_partial_clone' was moved in ebaf3bcf1ae (repository: move
global r_f_p_c to repo struct, 2021-06-17), adding it to the 'repository'
struct and updating 'setup.c' & 'repository.c' functions to assign the value
appropriately.
The primary goal of this change is to be able to load the worktree config of
a submodule depending on whether that submodule - not its superproject - has
'extensions.worktreeConfig' enabled. To ensure 'do_git_config_sequence()'
has access to the newly repo-scoped configuration, add a 'struct repository'
argument to 'do_git_config_sequence()' and pass it the 'repo' value from
'config_with_options()'.
Finally, add/update tests in 't3007-ls-files-recurse-submodules.sh' to
verify 'extensions.worktreeConfig' is read an used independently by
superprojects and submodules.
Signed-off-by: Victoria Dye <vdye@github.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Earlier, 47cfc9bd (attr: add flag `--source` to work with tree-ish,
2023-01-14) taught "git check-attr" the "--source=<tree>" option to
allow it to read attribute files from a tree-ish, but did so only
for the command. Just like "check-attr" users wanted a way to use
attributes from a tree-ish and not from the working tree files,
users of other commands (like "git diff") would benefit from the
same.
Undo most of the UI change the commit made, while keeping the
internal logic to read attributes from a given tree-ish. Expose the
internal logic via a new "--attr-source=<tree>" command line option
given to "git", so that it can be used with any git command that
runs as part of the main git process.
Additionally, add an environment variable GIT_ATTR_SOURCE that is set
when --attr-source is passed in, so that subprocesses use the same value
for the attributes source tree.
Signed-off-by: John Cai <johncai86@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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This is one step towards making strbuf.c not depend upon cache.h.
Additional steps will follow in subsequent commits.
Signed-off-by: Elijah Newren <newren@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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The `getenv_safe()` helper function helps to safely retrieve multiple
environment values without the need to depend on platform-specific
behaviour for the return value's lifetime. We'll make use of this
function in a following patch, so let's make it available by making it
non-static and adding a declaration.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
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