handle a rare, but possible case of argc being 0, in which case argv[0]
would be null.
note that both POSIX and ISO C standard allow argc to be 0 and in
practice this can be triggered via calling `exec(3)` family of functions
with NULL as the first `argv`.
* disable `cert-err33-c` and `readability-identifier-length` check
which causes warnings on clang-tidy v14.
* disable all "readability" checks by default, instead just opt-into the
useful ones (such as duplicate include).
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/365
Reviewed-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
* link to online man-page
* rename: "N-R-K" -> "NRK"
* separate multiple links with a comma.
otherwise the links get messed up due to `[] []` being valid syntax for
reference style links with the 2nd `[]` serving as `id`.
* prefer codeberg links over github ones
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/362
Reviewed-by: explosion-mental <explosion-mental@noreply.codeberg.org>
* run_key_handler: make the logic easier to follow
* remove timeout_t
the typedef is not needed. inline the declaration similar to the other
static structs.
* simplify estrdup
reuse emalloc, instead of calling malloc and null-checking.
* win_clear: initialize `e` right away
* process_bindings: explicitly check against NULL
most pointer checks in the codebase do explicit check.
* use a named constant instead of magic number
also changes the padding from 3 to 4 bytes according to [0]. but i
couldn't find any situtation where this mattered, so perhaps the current
padding is enough. but doesn't hurt adding one more byte.
[0]: https://nullprogram.com/blog/2017/10/06/
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/356
Reviewed-by: explosion-mental <explosion-mental@noreply.codeberg.org>
Uses [optparse] to add support for long-opts. optparse is posix
compliant with getopt(3) and thus would be backwards compatible.
It does not have any dependency (not even the c standard library!) and
is C89 compatible and thus fits our current code-style.
[optparse]: https://github.com/skeeto/optparse
Note that we're using a couple `pragma`-s to silence some harmless
warnings. This should be portable because these pragma-s don't change the
behavior of the program. Furthermore, C standard mandates that unknown
pragma's should be ignored by the compiler and thus would not result in
build failure on compilers which do not recognize them.
Closes: https://codeberg.org/nsxiv/nsxiv/issues/328
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/332
Reviewed-by: eylles <eylles@noreply.codeberg.org>
_SC_PHYS_PAGES isn't POSIX and might not be defined. in such case, just
return back `CACHE_SIZE_FALLBACK`.
NOTE: POSIX says the `names` in `sysconf()` are "symbolic constants" not
necessarily macros. So we might end up returning the fallback in some
cases where `_SC_PHYS_PAGES` *was* available, but not defined as a
macro. which is not ideal, but nothing fatal.
in practice, this shouldn't be an issue since most systems seems to
define them to be macros, i've checked Glibc, Musl, OpenBSD, FreeBSD and
Haiku.
also add a (useful) comment on `config.h` describing the effect higher
cache size has.
Closes: https://codeberg.org/nsxiv/nsxiv/issues/354
This is mainly just to reduce the amount of files in the project root.
The criteria of what gets into `etc/` are the following:
* The file should not be necessary for building nsxiv. This excludes the
`icon/*` stuff since that's needed by `window.c`.
* The file shouldn't have any valid reason to stay in the project root.
This excludes things like `README.md`, `.gitignore` etc.
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/350
Reviewed-by: explosion-mental <explosion-mental@noreply.codeberg.org>
Fixes a link that previously 404'd
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/351
Reviewed-by: NRK <nrk@disroot.org>
Co-authored-by: Nan <nan42@waifu.club>
Co-committed-by: Nan <nan42@waifu.club>
the current code is quite hacky and complex as it mixes multiple pointers. all
of this complexity is unnecessary. drop it by introducing an explicit scratch
buffer instead of implicitly abusing `arl->filename` as one. this also reduces
some unnecessary allocation overhead.
additionally, the argument to arl_setup must be the result of `realpath(3)` (as
commented in `nsxiv.h`). instead of commenting it, assert it.
and lastly, rename `arl_setup` to `arl_add` since it's not doing any "setup"
but rather *adding* a file to watch.
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/342
Reviewed-by: explosion-mental <explosion-mental@noreply.codeberg.org>
* install unversioned `llvm` so that it pulls the latest one.
* disable `uninitvar` check on cppcheck as it catches some false positives and
gcc/clang/clang-tidy are good at catching uninitialized variables already.
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/348
Reviewed-by: explosion-mental <explosion-mental@noreply.codeberg.org>
excluding the `.png` icons.
this also fixes the wrong `.patch` and `.diff` extensions checks.
no clue why we were trying to find `.patch` and `.diff` to begin with.
i think i probably copy pasted the command i tested on nsxiv-extra repo
or somewhere else without changing the extensions to `.c` and `.h`.
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/345
this was one of the cases which got missed in 591be8c, if someone starts
with `-t` the statusbar will remain at "Loading ...". Once we're done
loading all the thumbnail, make sure to open_info() so that `thumb-info`
gets called.
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/341
Reviewed-by: explosion-mental <explosion-mental@noreply.codeberg.org>
mixing signed and unsigned types in comparison can end up having
unintended results. for example:
if (-1 < 1U)
printf("true\n");
else
printf("false\n");
previously we silenced these warnings, instead just fix them properly
via necessary casting, and in cases where the value cannot be negative
(e.g width/height members) make them unsigned.
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/336
Reviewed-by: explosion-mental <explosion-mental@noreply.codeberg.org>
currently, in case of an empty xresources we would fail to init:
nsxiv: Error allocating color ''
instead, just reject empty value and use the fallback.
Closes: https://codeberg.org/nsxiv/nsxiv/issues/339
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/340
Reviewed-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
Co-authored-by: NRK <nrk@disroot.org>
Co-committed-by: NRK <nrk@disroot.org>
utf8_decode() may return an errors, in which case the returned codepoint
might be garbage. the issue can be tested by adding the following to
`image-info` which produces invalid utf8 sequences:
base64 -d << EOF
9JCAgPSQgIH0kICC9JCAg/SQgIT0kICF9JCAhvSQgIf0kICI9JCAifSQgIr0kICL9JCAjPSQgI30
kICO9JCAj/SQgJD0kICR9JCAkvSQgJP0kICU9JCAlfSQgJb0kICX9JCAmPSQgJn0kICa9JCAm/SQ
gJz0kICd9JCAnvSQgJ8=
EOF
on my system, this leads to the statusbar being filled with empty boxes.
check for returned error and skip the iteration.
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/327
Reviewed-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
the following combination currently fails to build:
$ make HAVE_LIBFONTS=0 HAVE_LIBWEBP=1
this is probably because one of the font library was including <stdio.h>
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/337
Reviewed-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
Reviewed-by: TAAPArthur <taaparthur@noreply.codeberg.org>
Co-authored-by: NRK <nrk@disroot.org>
Co-committed-by: NRK <nrk@disroot.org>
* includes are sorted alphabetically
* their grouping and layout is the following:
- nsxiv.h will be the first include
- followed by any internal headers (e.g "commands.h" "config.h")
- followed by system headers (<stdlib.h> etc)
- followed by third party headers (X.h libwebp etc)
* also add `llvm-include-order` check to clang-tidy so that it can catch
unsorted includes during CI.
* rm unused include <sys/types.h>
* move <sys/time.h> to main.c, it's the only file that needs it.
* move TV_* macros to main.c
* let *.c files explicitly include what they need instead of including
them at nsxiv.h
Originally we stopped doing links in the CHANGELOG since it harmed
readability when reading the raw markdown file. However we can use
reference styles links instead.
* Pros
- Doesn't harm readability.
- We can link to proper thread on the proper repo (`CodeBerg/nsxiv`
for newer threads, `nsxiv-record` for wiped ones)
- The links will be clickable on the [webpage]
- Both GitHub and Codeberg support reference style links, as well as
lowdown (which we use for building the webpage)
[webpage]: https://nsxiv.codeberg.page/changelog/
* Cons
- Slightly higher maintainance burden.
- Larger file size.
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/325
Reviewed-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
cppcheck warns about passing a plain NULL to construct_argv()
main.c:254:36: portability: Passing NULL after the last typed argument to a variadic function leads to undefined behaviour. [varFuncNullUB]
fidx, fcnt, w, h, z, NULL);
in our case, POSIX mandates `NULL` to be defined as `(void *)0` rather
than a plain `0` [0]. and void pointers are required to have the same
representation and size as char pointers [1]. so this is not an issue we
need to worry about.
[0]: https://pubs.opengroup.org/onlinepubs/9699919799/basedefs/stddef.h.html#tag_13_47
[1]: https://port70.net/~nsz/c/c99/n1256.html#6.2.5p27
the warnings on r_readdir(), img_load_gif() and strcpy seems to be false
positives. the warning about fmt being unused is valid, but not worth
fixing with additional #ifdef guards.
use `assert` to silence the false positive cases when possible,
otherwise use a NOLINT comment with an explanation.
it's possible for the close() calls to override the errno resulting in
incorrect error message being printed.
call error() immediately to avoid such possibilities.
also refactor a couple conditions to avoid doing multiple checks.
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/321
Reviewed-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
currently, in case of error, r_mkdir will leave the path at a truncated
state.
a7d39b0ab8 is the commit that introduced this change, and in it the
error printing is moved from r_mkdir to the caller, which makes me think
it was probably intentional.
make it so that the function itself prints the error/warning
message and returns the path back to the caller unharmed.
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/322
Reviewed-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
Reviewed-by: TAAPArthur <taaparthur@noreply.codeberg.org>
- apt-get is slow, takes up ~1m40s just to install deps, fix it by not
using it. instead use alpine linux for codeberg ci, which brings build
time down to 25s.
- And since alpine uses musl, it's probably a good idea to use it on our
ci since it might catch us using any glibc extensions. The github ci
can keep using ubuntu.
- remove duplication of CFLAGS by having it on a separate file instead.
- remove pull_request from github ci since we no longer accept PRs
there.
Closes: https://codeberg.org/nsxiv/nsxiv/issues/307
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/311
Reviewed-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
Reviewed-by: TAAPArthur <taaparthur@noreply.codeberg.org>
The former worked on GitHub, but does not work on Codeberg.
Reviewed-on: https://codeberg.org/nsxiv/nsxiv/pulls/309
Reviewed-by: Berke Kocaoğlu <berke.kocaoglu@metu.edu.tr>
Co-authored-by: Sanjay Pavan <withercubes@protonmail.com>
Co-committed-by: Sanjay Pavan <withercubes@protonmail.com>
instead of dancing around with some `init` parameter, directly give
`win_set_title()` what it needs. `get_win_title()` now also does *just*
what the name says.
this simplifies things quite a bit and the functions now do what their
name implies more closely instead of doing some `init` dance internally.
rather than calling the script unconditionally per redraw, we now have
a `title_dirty` flag and keep track of when any of the relavent
information changes.
Co-authored-by: Arthur Williams <taaparthur@gmail.com>
Partially fixes: https://github.com/nsxiv/nsxiv/issues/258
just use a static buffer since the size is constant and doesn't change.
as opposed to using malloc, this also sets the buffer's initial memory
region to 0 by default.
also remove BAR_{L,R}_LEN from nsxiv.h, not needed after commit b4268fbf38
this moves all the build variables intended to be modified by the user
over to `config.mk` similar to other suckless software.
also move CPPFLAGS down below for cosmetic purposes.
currently the way check_timeout() is implemented, animate has higher
priority than slideshow. so if doing a redraw takes longer than the
frame delay of the animated image then it's going to continuously keep
animating and never reliably get to slideshow.
this issue can occur if the animated image has too fast of a delay or if
nsxiv is being run on a slow system where doing redraw takes too long.
the issue can be emulated by artificially slowing down img_render by
sticking a sleep in there.
diff --git a/main.c b/main.c
index 5dc52d4..0580011 100644
--- a/main.c
+++ b/main.c
@@ -441,6 +441,7 @@ void redraw(void)
if (mode == MODE_IMAGE) {
img_render(&img);
+ nanosleep(&(struct timespec){0, 62000000}, NULL); /* 62ms */
if (img.ss.on) {
t = img.ss.delay * 100;
if (img.multi.cnt > 0 && img.multi.animate)
make it so that slideshow has higher priority than animate to fix
the issue.
Closes: https://github.com/nsxiv/nsxiv/issues/281
to reproduce:
1. have an image-info script
2. invoke the key-handler
3. cancle invocation by pressing `escape`
at this point, the statusbar ends up being empty.
the regression seems to be caused by 6922d5d (changing select to poll),
unsure why that is.
in any case, this simplifies read_info quite a bit and solves the
regression as well. in short:
* read straight into the statusbar buffer
* if read succeeds, make sure buffer is null terminated and replace any
newline with space
* close the script
this happens when the keyhandler is invoked while viewing an animated
image. if {image,thumb}-info scripts exists, everything works as
expected. but if they don't, then update_info will override the
statusbar.
NRK
explosion-mental
Nan
zood
Berke Kocaoğlu
NRK
Sanjay Pavan
eylles