Commit Graph

153 Commits

Author SHA1 Message Date
Mahmoud Al-Qudsi
f702c42068 Sanitize history item whitespace
Coalesces commands with leading (if even possible) and trailing
whitespace into the same item, improving the experience when iterating
over history entries.

Closes #4908.
2018-10-01 17:12:18 -05:00
ridiculousfish
051605b593 Cleap up owning_lock interface
Use some operator overloading to avoid the weird interface of acquired_lock.
2018-09-01 13:11:42 -07:00
ridiculousfish
2a680ebd12 Fix some miscellaneous warnings 2018-08-26 00:43:40 -07:00
ridiculousfish
d87f00bdc9 Simplify history search
Remove features related to navigating forwards in history that are no
longer used.
2018-08-12 02:41:09 -07:00
ridiculousfish
1f2b2b119a Remove some disabled (commented or ifdef'd out) code 2018-08-10 20:48:02 -07:00
ridiculousfish
dae2809531 Fix a few warnings 2018-07-21 14:35:39 -07:00
ridiculousfish
4d1eeef3db Stop trying to mmap the history file on remote fs
When the history file is on a remote filesystem, memory mapping is suspicious.
Never mmap in this case.
2018-07-15 15:26:36 -07:00
ridiculousfish
a39734cbed Encapsulate history mmap logic
Migrate the mmap() logic into a new class history_file_contents_t which
will serve to encapsulate conditional logic if we choose to use read()
instead of mmap().
2018-07-15 15:26:27 -07:00
ridiculousfish
63e0a3d7c2 Misc cleanup in history_t
Add some C++11
2018-07-15 14:33:38 -07:00
ridiculousfish
2ce0240fc8 Add a time_profiler for reading old history items 2018-07-15 14:33:38 -07:00
ridiculousfish
8ded041352 Add && and || support to tokenizer 2018-03-05 12:20:56 -08:00
ridiculousfish
da84b38430 Constructors to accept more parameters by value
In cases where the constructor needs to take ownership of parameters,
pass them by value and use std::move.
2018-02-18 19:12:45 -08:00
ridiculousfish
74e6a82849 Remove explicit 'void' parameters. 2018-02-18 19:12:45 -08:00
ridiculousfish
ba7b8a9584 Remove various empty or useless functions
In particular remove init()/destroy() functions that do nothing, or
destroy functions that only free memory.
2018-02-10 17:21:55 -08:00
ridiculousfish
85fba3a316 Remove HISTORY_SEARCH_TYPE_*_PCRE
These were unused and unimplemented.
2018-02-03 14:41:01 -08:00
ridiculousfish
54cefeb5b1 Make sliced history (e.g. $history[1]) much faster
This special cases expansion of $history variables, so that slicing
history no longer needs to construct the entire history array. Speedup
is around 100x in my test.

Fixes #4650
2018-01-30 18:34:46 -08:00
ridiculousfish
094e853a20 Migrate tnode_t into new header tnode.h 2018-01-20 12:15:28 -08:00
ridiculousfish
f0f56a6910 Teach decoration_for_plain_statement about tnode, rename it get_decoration 2018-01-20 11:31:40 -08:00
ridiculousfish
18a120d00e Migrate command_for_plain_statement to tnode_t 2018-01-20 11:31:40 -08:00
Mahmoud Al-Qudsi
e99f137356 Merge branch 'master' into history-glob-search 2017-10-10 08:16:21 +02:00
David Adam
472e186c2b Rename FISH_HISTORY to fish_history
Work on #4414.
2017-09-24 14:07:45 +08:00
Kurtis Rader
65dcd06ca1 mplement history search glob searches
Instead of treating the search term as a literal string to be matched
treat it as a glob. This allows the user to get a more useful set of
results by using the `*` glob character in the search term.

Partial fix for #3136
2017-09-15 13:43:45 -07:00
Kurtis Rader
ee1d310651 Implement history search --reverse (#4375)
* Implement `history search --reverse`

It should be possible to have `history search` output ordered oldest to
newest like nearly every other shell including bash, ksh, zsh, and csh.
We can't make this the default because too many people expect the
current behavior. This simply makes it possible for people to define
their own abbreviations or functions that provide behavior they are
likely used to if they are transitioning to fish from another shell.

This also fixes a bug in the `history` function with respect to how it
handles the `-n` / `--max` flag.

Fixes #4354

* Fix comment for format_history_record()
2017-09-14 15:44:17 -07:00
ridiculousfish
3d40292c00 Switch env_var to using maybe_t
This eliminates the "missing" notion of env_var_t. Instead
env_get returns a maybe_t<env_var_t>, which forces callers to
handle the possibility that the variable is missing.
2017-09-01 00:14:42 -07:00
Kurtis Rader
99d2a344c7 Fix indexing of $history
cherry-picked from krader1961/fish-shell commit b69df4fe72

Fixes #4353 (regression in indexing of history contents) and introduces
new unit tests to catch bad $history indexing in the future.
2017-08-25 20:28:45 -05:00
Mahmoud Al-Qudsi
d9f901f36d Squashed commit of the following:
commit 50f414a45d58fcab664ff662dd27befcfa0fdd95
Author: Mahmoud Al-Qudsi <mqudsi@neosmart.net>
Date:   Sat Aug 19 13:43:35 2017 -0500

    Converted file_id_t set to unordered_set with custom hash

commit 83ef2dd7cc1bc3e4fdf0b2d3546d6811326cc3c9
Author: Mahmoud Al-Qudsi <mqudsi@neosmart.net>
Date:   Sat Aug 19 13:43:14 2017 -0500

    Converted remaining set<wcstring> to unordered_set<wcstring>

commit 053da88f933f27505b3cf4810402e2a2be070203
Author: Mahmoud Al-Qudsi <mqudsi@neosmart.net>
Date:   Sat Aug 19 13:29:21 2017 -0500

    Switched function sets to unordered_set

commit d469742a14ac99599022a9258cda8255178826b5
Author: Mahmoud Al-Qudsi <mqudsi@neosmart.net>
Date:   Sat Aug 19 13:21:32 2017 -0500

    Converted list of modified variables to an unordered set

commit 5c06f866beeafb23878b1a932c7cd2558412c283
Author: Mahmoud Al-Qudsi <mqudsi@neosmart.net>
Date:   Sat Aug 19 13:15:20 2017 -0500

    Convert const_string_set_t to std::unordered_set

    As it is a readonly-list of raw character pointer strings (not
    wcstring), this necessitated the addition of a hashing function since
    the C++ standard library does not come with a char pointer hash
    function.

    To that end, a zlib-licensed [0] port of the excellent, lightweight
    XXHash family of 32- and 64-bit hashing algorithms in the form of a C++
    header-only include library has been included. XXHash32/64 is pretty
    much universally the fastest hashing library for general purpose
    applications, and has been thoroughly vetted and is used in countless
    open source projects. The single-header version of this library makes it
    a lot simpler to include in the fish project, and the license
    compatibility with fish' GPLv2 and the zero-lib nature should make it an
    easy decision.

    std::unordered_set brings a massive speedup as compared to the default
    std::set, and the further use of the fast XXHash library to provide the
    string hashing should make all forms of string lookups in fish
    significantly faster (to a user-noticeable extent).

    0: http://create.stephan-brumme.com/about.html

commit 30d7710be8f0c23a4d42f7e713fcb7850f99036e
Author: Mahmoud Al-Qudsi <mqudsi@neosmart.net>
Date:   Sat Aug 19 12:29:39 2017 -0500

    Using std::unordered_set for completions backing store

    While the completions shown to the user are sorted, their storage in
    memory does not need to be since they are re-sorted before they are
    shown in completions.cpp.

commit 695e83331d7a60ba188e57f6ea0d9b6da54860c6
Author: Mahmoud Al-Qudsi <mqudsi@neosmart.net>
Date:   Sat Aug 19 12:06:53 2017 -0500

    Updated is_loading to use unordered_set
2017-08-19 15:36:45 -05:00
Mahmoud Al-Qudsi
e76c1fd139 Remove custom lock types in favor of native C++11 mutexes
No longer using RAII wrappers around pthread_mutex_t and pthread_cond_t
in favor of the C++11 std::mutex, std::recursive_mutex, and
std::condition_variable data types.
2017-08-18 23:09:31 -05:00
Kurtis Rader
f872f25f5b change env_var_t to a vector of strings
Internally fish should store vars as a vector of elements. The current
flat string representation is a holdover from when the code was written
in C.

Fixes #4200
2017-08-18 16:24:30 -07:00
Kurtis Rader
52d739c746 Revert "Revert "finish cleanup of signal blocking code""
This reverts commit 35ee28ff24.

Reapply the signal blocking cleanup change on top of the job control
changes made by @mqudsi.
2017-08-06 14:46:12 -07:00
Kurtis Rader
35ee28ff24 Revert "finish cleanup of signal blocking code"
This reverts commit fb08fe5f47.

Needed to cleanly apply PR#4268. Will reapply after applying that
change.
2017-08-06 14:38:25 -07:00
Kurtis Rader
c36ad27618 stop subclassing env_var_t from wcstring
This is the first step to implementing issue #4200 is to stop subclassing
env_var_t from wcstring. Not too surprisingly doing this identified
several places that were incorrectly treating env_var_t and wcstring as
interchangeable types. I'm not talking about those places that passed
an env_var_t instance to a function that takes a wcstring. I'm talking
about doing things like assigning the former to the latter type, relying
on the implicit conversion, and thus losing information.

We also rename `env_get_string()` to `env_get()` for symmetry with
`env_set()` and to make it clear the function does not return a string.
2017-08-06 13:24:34 -07:00
Kurtis Rader
fb08fe5f47 finish cleanup of signal blocking code
PR #3691 made most calls to `signal_block()` and `signal_unblock()`
no-ops unless a magic env var is set when fish starts running. It's
been seven months since that change was made and no problems have been
reported. This finishes that work by removing those no-op function calls
and support for the magic env var in our next major release (which won't
happen till at least six months from now).
2017-07-26 13:51:00 -07:00
Kurtis Rader
c6093ad782 make read honor FISH_HISTORY
The `read` command `-m` and `--mode-name` vars are now deprecated and do
nothing other than result in a warning message. The `read` command now
honors the `FISH_HISTORY` var that is used to control where commands are
read from and written to. You can set that var to the empty string to
suppress the use of both history files. Or you can set it to a history
session ID in which case that will limit the `read` history that is
available.

Fixes #1504
2017-06-30 21:03:05 -07:00
Kurtis Rader
ec14527545 don't import bash history if not default fish hist
Don't import the bash history if the user has specified that a non-default
fish history file should be used. Also, rename the var that specifies
the fish history session ID from `FISH_HISTFILE` to `FISH_HISTORY`.

Fixes #4172
2017-06-30 20:24:55 -07:00
tomassedovic
aec0973196 Make the history session configurable
Using the FISH_HISTFILE variable will let people customise the session
to use for the history file. The resulting history file is:

    `$XDG_DATA_HOME/fish/name_history`

Where `name` is the name of the session. The default value is `fish`
which results in the current history file.

If it's set to an empty string, the history will not be stored to a
file.

Fixes #102
2017-06-30 17:13:02 -07:00
Kurtis Rader
6c4a51d56e improve bash history importing
Reject more invalid commands from the bash history file.

Fixes #3636
2017-05-20 21:03:31 -07:00
Kurtis Rader
03571b82be cleanup env code and contains()
Switch from null terminated arrays to `wcstring_list_t` for lists of
special env var names. Rename `list_contains_string` to `contains` and
modify the latter interface to not rely on a `#define`.

Rename `list_contains_string()` to `contains()` and eliminate the
current variadic implementation. Update all callers of the removed
version to use the string list version.
2017-04-05 17:09:12 -07:00
David Adam
40de253b3a Upgrade git:// and http:// URLs to https://
Work on fish-shell/fish-site#47

[ci skip]
2017-02-17 21:31:44 +08:00
Kurtis Rader
509ee64fc9 implement our own assert() function
I recently upgraded the software on my macOS server and was dismayed to
see that cppcheck reported a huge number of format string errors due to
mismatches between the format string and its arguments from calls to
`assert()`. It turns out they are due to the macOS header using `%lu`
for the line number which is obviously wrong since it is using the C
preprocessor `__LINE__` symbol which evaluates to a signed int.

I also noticed that the macOS implementation writes to stdout, rather
than stderr. It also uses `printf()` which can be a problem on some
platforms if the stream is already in wide mode which is the normal case
for fish.

So implement our own `assert()` implementation. This also eliminates
double-negative warnings that we get from some of our calls to
`assert()` on some platforms by oclint.

Also reimplement the `DIE()` macro in terms of our internal
implementation.

Rewrite `assert(0 && msg)` statements to `DIE(msg)` for clarity and to
eliminate oclint warnings about constant expressions.

Fixes #3276, albeit not in the fashion I originally envisioned.
2017-02-14 18:48:27 -08:00
Kurtis Rader
69731f6642 more IWYU fixes
I'm starting to wonder if IWYU is worth the effort. Nonetheless, this
makes it lint clean on macOS and reduces the number of warnings on
FreeBSD and Linux.
2017-02-12 20:36:37 -08:00
Kurtis Rader
4ffb0adb78 lint cleanups 2017-02-11 21:30:38 -08:00
Kurtis Rader
0541a34201 improve bash command history importing
Fixes #2091
2017-02-08 20:50:57 -08:00
Kurtis Rader
0970cc8736 time for another make style-all 2017-02-07 21:52:35 -08:00
ridiculousfish
162053ed8d Make history file rewriting be more lock savvy
We now are stingier with taking history file locks - if the lock
is held too long we may just break it. But the current file save
architecture holds the lock for the duration of the save. It also
has some not-quite-right checks that can cause spurious failures in
the history stress test.

Reimplement the history save to retry. Rather than holding the lock,
rewrite the file to a temporary location and then take the lock. If
the history file has changed, start all over.

This is going to be slower under contention, but the advantage is that
the lock is only held for a brief period (stat + rename) rather than
across calls to write().

Some updated logic also fixes spurious failures that were easy to observe
when tsan was enabled. These failures were due to failing to check if the
file at the path was the same file we opened.

The next step is to move the history file saving to a background thread
to reduce the chances of it impacting user's typing.
2017-02-06 11:04:07 -08:00
ridiculousfish
f9371899a1 Including missing atomic header in history.cpp 2017-02-06 10:51:27 -08:00
ridiculousfish
56b60fab4b Improve history's save_internal_via_appending
Allow retrying, fix an issue where we trip over our own changes
by thinking the file has changed when we are responsible for changing
it, and improve some commenting
2017-02-06 10:39:07 -08:00
ridiculousfish
b91a2dd0bb Factor map_fd out of map_file
Will enable us to map an already-opened file
2017-02-06 10:09:31 -08:00
ridiculousfish
6eb1e31070 Add some safety to history_file_lock
Use an atomic to avoid TSAN complaints, and ensure that we don't
leave the file locked if we've decided to give up on locking.
2017-02-06 10:00:34 -08:00
ridiculousfish
e3c538a991 Simplify history_output_buffer_t
This class is used to accumulate data to be written to the history
file. It has some dubious optimizations around trying to track an
offset separately from the size of the buffer. After some investigation
these aren't helping, vector behaves fine on its own. So just make
this a simple wrapper around vector.
2017-02-06 10:00:01 -08:00
ridiculousfish
10a2275c34 Adopt owning_lock in history_collection_t 2017-01-29 18:15:38 -08:00
Kurtis Rader
973097f025 style fixups 2017-01-29 18:00:48 -08:00
ridiculousfish
e52a04e341 Cleanup of LRU cache implementation
Switch to CRTP from virtual functions and improve ownership semantics.
It's no longer necessary for clients to use new and delete.
2017-01-29 12:16:42 -08:00
Kurtis Rader
5b6cc5af6d time for another make style-all
Gotta keep the entropy (i.e., disorder) from increasing.
2017-01-26 20:05:46 -08:00
ridiculousfish
f29139e853 Change clients of file_detection_context_t to use lambdas
Allows for eliminating file_detection_context_t
2017-01-26 09:40:17 -08:00
ridiculousfish
a3dbca90d5 g++-friendly 'Rework iothread_perform for void return types'
Allows iothread_perform to work with void return types on both
g++ and clang

This reverts commit 1040b255c7
and reintroduces ac9a0f0dbf
2017-01-26 09:40:17 -08:00
ridiculousfish
e5bfdb99b6 Enable mkostemp to be weak-linked
mkostemp is not available on some older versions of macOS. In order
for our built binaries to run on them, mkostemp must be weak-linked.
On other systems, we use the autoconf check.

Introduce a function fish_mkstemp_cloexec which uses mkostemp if
it was detected and is available at runtime, else falls back to
mkstemp. This isolates some logic that is currently duplicated in
two places.

See #3138 for more on weak linking.
2017-01-08 22:18:27 -08:00
Kurtis Rader
483e9fdea2 check if locking takes too long
If acquiring a lock on the history or uvar file takes more than 250 ms
disable locking of the file. On systems with broken remote file system
locking it can cause tens of seconds delay after running each command
which can make the shell borderline unusable.

This also changes history file locking to use flock() rather than
fcntl() to be consistent with uvar file locking. It also implements the
250 ms time limit before giving up on locking.

Fixes #685
2016-12-16 21:20:08 -08:00
Kurtis Rader
a928517e95 improve converting strings to ints/longs
The existing code is inconsistent, and in a couple of cases wrong, about
dealing with strings that are not valid ints. For example, there are
locations that call wcstol() and check errno without first setting errno
to zero. Normalize the code to a consistent pattern.  This is mostly to
deal with inconsistencies between BSD, GNU, and other UNIXes.

This does make some syntax more liberal. For example `echo $PATH[1 .. 3]`
is now valid due to uniformly allowing leading and trailing whitespace
around numbers. Whereas prior to this change you would get a "Invalid
index value" error. Contrast this with `echo $PATH[ 1.. 3 ]` which was
valid and still is.
2016-11-25 18:52:15 -08:00
ridiculousfish
52d1b6b97d Remove some dead functions
icompare_pred and icompare in history.cpp are unused
2016-11-19 23:12:49 -08:00
ridiculousfish
9b4310b10f Ensure we clear first_unwritten_new_item_index after history::merge
Prevents an issue where we think we've written out history items,
but we haven't, and so they get lost. Fixes #3496
2016-11-19 22:40:50 -08:00
Kurtis Rader
521546a986 fix some lint warnings
This fixes some of the IWYU and cppcheck lint warnings. And only on
macOS (formerly OS X). Fixing these types of warnings on a broader set
of platforms should be done but this is a baby step to making `make
lint-all` have few, if any, warnings. This reduces the number of lines
in the `make lint-all` output on macOS by over 500 lines.
2016-11-15 21:15:22 -08:00
Kurtis Rader
9b0d45d4fa lint: unnecessary else statement 2016-11-02 14:44:27 -07:00
Kurtis Rader
e73226d7e8 lint: unused parameter 2016-11-01 19:12:39 -07:00
Kurtis Rader
eab836864e lint: Use early exit/continue 2016-10-31 18:05:01 -07:00
Kurtis Rader
a26f68d63f handle multiline commands in history search output
Fixes #31
2016-10-16 21:33:12 -07:00
Kurtis Rader
bff6a6e66a eliminate compile warnings and augment changelog
Update the CHANGELOG to more accurately reflect what will be included in
the 2.4.0 release vis-a-vis the `history` command behavior.

I noticed that the compiler was emitting some harmless warnings related
to the history changes so deal with those as well.
2016-10-16 21:15:40 -07:00
Kurtis Rader
f490b56378 make history searching case insensitive by default
Fixes #3236
2016-10-16 20:18:16 -07:00
Kurtis Rader
cda415cb5d fix more style bogosities that have crept in 2016-10-10 19:52:22 -07:00
Kurtis Rader
c07c98ac05 eliminate many "unused parameter" warnings
Partially addresses issue #3430.
2016-10-09 14:38:26 -07:00
Kurtis Rader
851e449347 eliminate signed/unsigned comparison warnings
This partially addresses #3430.
2016-10-09 14:36:08 -07:00
Kurtis Rader
e9b5505169 add a flag to limit history search results
This adds a flag to the `history search` command to limit the number of
matching entries to the first "n". The default is unlimited. This is
mostly useful in conjunction with aliases (i.e., functions) that are
intended to report the "n" most recent matching history entries without
piping the result through the user's pager.

Fixes #3244
2016-09-23 19:43:58 -07:00
Kurtis Rader
204e79105a allow customizing history --show-time format
It would make fish more friendly if we allowed the user to specify the
format of the history entry timestamps.

Fixes #3361
2016-09-20 20:14:02 -07:00
Aaron Gyes
3d6cb59b31 Use %Y-%m-%d %H:%M:%S format, update tests
Update history docs.

Note - the omission of a mention of timezone was intentional. These were recorded as naive timestamps lacking timezone information in the first place.
2016-09-07 07:52:45 -07:00
Aaron Gyes
6936e64b34 Show history timestamps on seperate lines #-prefixed.
Improves the grouping of multiline history entries
by sepearating the timestamps and history entires onto seperate lines.

Use wcsftime() Saves us a conversion, might as well.
2016-09-07 07:51:32 -07:00
Kurtis Rader
710addde16 fix history --delete regression
The recent change to reconcile the history builtin command and function
broke an undocumented behavior of `history --delete`. This change
reinstates that behavior. It also adds an explicit `--exact` search mode
for the `--search` and `--delete` subcommands.

Fixes #3270
2016-08-10 21:51:01 -07:00
Aaron Gyes
ee26eafc25 Ensure we continue to cover enums in switches
Where we already manage to cover an enum entirely in a switch
statement such that default: cannot be reached, help ensure
it stays that way by condemning that route.

Also adjust a 'const' I came across that is ignored.
2016-07-30 13:10:21 -07:00
Kurtis Rader
10ae6d8b26 fix some style problems that have crept in 2016-07-21 19:36:32 -07:00
Kurtis Rader
1d2fff9686 simplify oclint error suppression for scoped_lock 2016-07-20 22:30:58 -07:00
Kurtis Rader
b53f42970c correct handling of history args
This fixes several problems with how the builtin `history` command handles
arguments. It now complains and refuses to do anything if the user specifies
incompatible actions (e.g., `--search` and `--clear`). It also fixes a
regression introduced by previous changes with regard to invocations that
don't explicitly specify `--search` or a search term.

Enhances the history man page to clarify the behavior of various options.

This change is already far larger than I like so unit tests will be added
in a separate commit.

Fixes #3224.

Note: This fixes only a couple problems with the interactive `history
--delete` command in the `history` function. The main problem will be
dealt with via issue #31.
2016-07-20 21:18:48 -07:00
Aaron Gyes
0045b46af8 Rename things to avoid conflicts with headers
Was breaking builds

 * ncurses.h: can declare `char *const key_name'.
 * netbsd term.h: has `newline', `lines' macros.
2016-07-01 02:48:50 -07:00
ridiculousfish
02cef2da23 history --merge to properly interleave items
Fixes #2312
2016-06-23 22:03:07 -07:00
Aaron Gyes
9f0c31611c Lint Cleanup
This remove some stores that clang assures me are very dead.

And an assert() for an unlikely NULL pointer dereference I can't quite
figure out.
2016-06-14 19:27:00 -07:00
Kurtis Rader
5bf1b0e5f5 fix random lint issues
This only eliminates errors reported by `make lint`. It shouldn't cause any
functional changes.

This change does remove several functions that are unused. It also removes the
`desc_arr` variable which is both unused and out of date with reality.
2016-05-29 22:24:29 -07:00
Kurtis Rader
9ad3488b5d fix some style bogosities that crept in 2016-05-27 14:44:30 -07:00
David Adam
9225b16d12 add (or restore) config.h to all files
The autoconf-generated config.h contains a number of directives which
may alter the behaviour of system headers on certain platforms. Always
include it in every C++ file as the first include.

Closes #2993.
2016-05-18 22:30:21 +00:00
Kurtis Rader
4481692037 lint: low hanging fruit in history.cpp 2016-05-05 15:09:31 -07:00
Kurtis Rader
79f342b954 lint cleanup: eliminate "redundant" errors
This removes some pointless parentheses but the primary focus is removing
redundancies like unnecessary "else" clauses.
2016-05-04 15:32:04 -07:00
Kurtis Rader
fc44cffac5 restyle switch blocks to match project style
I missed restyling a few "switch" blocks to make them consistent with the rest
of the code base. This fixes that oversight. This should be the final step in
restyling the C++ code to have a consistent style. This also includes a few
trivial cleanups elsewhere.

I also missed restyling the "complete" module when working my way from a to z
so this final change includes restyling that module.

Total lint errors decreased 36%. Cppcheck errors went from 47 to 24. Oclint P2
errors went from 819 to 778. Oclint P3 errors went from 3252 to 1842.

Resolves #2902.
2016-05-03 17:14:56 -07:00
Kurtis Rader
1f06e5f0b9 add better support for IWYU and fix things
Remove the "make iwyu" build target. Move the functionality into the
recently introduced lint.fish script. Fix a lot, but not all, of the
include-what-you-use errors. Specifically, it fixes all of the IWYU errors
on my OS X server but only removes some of them on my Ubuntu 14.04 server.

Fixes #2957
2016-04-26 15:02:22 -07:00
Kurtis Rader
bd4622a0d0 make comments Xcode friendly
The OS X Xcode IDE has a weird requirement that block comments preceding a
function or class definition must begin with three slashes rather than two if
you want the comment displayed in the "Quick Help" window.
2016-04-19 18:22:44 -07:00
Kurtis Rader
61c0ca9dd9 restyle history code to match project style
Make the history code conform to the new style guide. Every change was
produced by clang-format (e.g., `make style`) with the exception of
comments which were manually reformatted.  That has to be done by hand
since clang-format leaves comments alone other than to reflow comment
lines to get them below the allowed line length.

The total number of lines is reduced by 313 lines (13%) in the two
affected files. Line count is generally a poor metric but in this
case it reflects an increase in information density without a loss in
readability. Furthermore, the standardization of braces, whitespace,
and comment style will make it easier for people to read the code.

This reduces the number of warnings by `make lint` from 168 to 87 (a 48%
decrease). Making it much easier to focus on the substantive lint issues.

Further improvements are possible. For example, many comments are not
very helpful (e.g., they point out the obvious) or provide insufficient
detail. But those are beyond the scope of this change.

This is the first step in resolving issue #2902.
2016-04-18 17:20:19 -07:00
Andreas Nordal
6495bd470d Fix memory leaks at exit found in tests
This fixes all memory leaks found by compiling with
clang++ -g -fsanitize=address and running the tests.

Method:
Ensure that memory is freed by the destructor of its respective container,
either by storing objects directly instead of by pointer, or implementing
the required destructor.
2016-03-27 17:40:48 -07:00
Kurtis Rader
c2f1df1d4a fix handling of non-ASCII chars in C locale
The relevant standards allow the mbtowc/mbrtowc functions to reject
non-ASCII characters (i.e., chars with the high bit set) when the locale
is C or POSIX.  The BSD libraries (e.g., on OS X) don't do this but
the GNU libraries (e.g., on Linux) do. Like most programs we need the
C/POSIX locales to allow arbitrary bytes. So explicitly check if we're
in a single-byte locale (which would also include ISO-8859 variants)
and simply pass-thru the chars without encoding or decoding.

Fixes #2802.
2016-03-20 18:47:38 -07:00
Jeff Kowalski
a7012648fe Improve error handling around fchown
Address the feedback from the prior commit:
- Change the sense of return value testing to match more common
comparison idiom
- Test result of fchmod as well as fchown
- Change sense of return value testing around wrename as well
- Include errno where possible in error message
2016-03-12 12:26:01 -08:00
Jeff Kowalski
46b9f263ac Handle return values from fchown
The function fchown is annotated with warn_unused_result.  As
formerly used in the code, it would emit a compiler warning
```warning: ignoring return value of ‘fchown’, declared with
attribute warn_unused_result [-Wunused-result]```

This commit notes the return value and emits appropriate error/logging
messages if the call fails, creating more traceable results and
satisfying the compiler.
2016-03-12 11:21:52 -08:00
ridiculousfish
1e7c3fe709 A few fixes suggested by Coverity Scan 2016-03-03 18:49:24 -08:00
ridiculousfish
10f3ea0008 Mark a bunch of constructors as explicit
This prevents undesired implicit conversions
2016-02-27 19:38:15 -08:00
Jeff Kowalski
226cdc6a28 Fix usage of history_filename 2015-10-16 07:40:04 +08:00
Jeff Kowalski
b13f0701a4 Migrate fish_history from config to data dir
New implementation of migration code within the history_t class will
copy the contents of the old fish_history found in the config directory
to its new location in the data directory.  The old file is left intact.

This is done only in the event that a fish_history is not already found in
the data directory ($XDG_DATA_HOME/fish or ~/.local/share/fish).
2015-10-16 07:40:04 +08:00
Jeff Kowalski
2971887bbd Access fish_history from $XDG_DATA_HOME
Add new functions path_get_data and path_create_data which parallel existing
functions path_get_config and path_create_data.  The new functions refer to
XDG_DATA_HOME, if it is defined, or ./local/share if not.

Modify history_filename to use the new function path_get_data.

As a consequence, fish_history will now be located in XDG_DATA_HOME,
not XDG_CONFIG_HOME.

Note that these changes mirror what is already used in
fish-shell/share/tools/create_manpage_completions.py, which stores the
completions in XDG_DATA_HOME

This change matches recommendations in the xdg basedir spec at
http://standards.freedesktop.org/basedir-spec/basedir-spec-0.7.html
($XDG_DATA_HOME defines the base directory relative to which user specific data
files should be stored. If $XDG_DATA_HOME is either not set or empty, a default
equal to $HOME/.local/share should be used.)

It addresses suggestions from the following issues:

1. Don't put history in $XDG_CONFIG_HOME (closes #744)
   https://github.com/fish-shell/fish-shell/issues/744

2. Fish is placing non-config files in $XDG_CONFIG_HOME #1257
   https://github.com/fish-shell/fish-shell/issues/1257

3. Move non-config data out of $XDG_CONFIG_HOME #1669
   https://github.com/fish-shell/fish-shell/issues/1669
2015-10-16 07:39:49 +08:00