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127 Commits

Author SHA1 Message Date
James Shubin
a840dd43dd cli, tools, util, modules: Add a grow util and module 
This builds in some functionality for growing the filesystem for new
machines. It also gets wrapped with an mcl module for ease of use.
 2025-09-26 23:00:20 -04:00
James Shubin
83743df3e4 util: Add variant of exec cmd that returns output 2025-09-26 21:18:54 -04:00
James Shubin
a668cd847e util: New buffered infinite chan primitive 
I'm sure there are better implementations, but this feels clean enough
for now. Let's see if this is useful or not.
 2025-09-09 02:21:59 -04:00
James Shubin
6c206b8010 util: Prevent unlikely race on easy exit 
Race detector hit this up once, and I can see how it would be possible.
 2025-09-09 02:21:59 -04:00
James Shubin
bdf5209f68 util: errwrap: Add unwrapping for context removal 
It's common in many concurrent engines to have a situation where we
collect errors on shutdown. Errors can either because a context closed,
or because some engine error happened. The latter, can also cause the
former, leading to a list of returned errors. In these scenarios, we
want to filter out all the secondary context errors, unless that's all
that's there. This provides a helper function to do so.
 2025-07-16 23:48:37 -04:00
James Shubin
299b49bb17 util: errwrap: Add a function for joining 
This is like the Append function but for a list.
 2025-07-16 23:48:37 -04:00
James Shubin
301ce03061 misc, setup, util: Add a ulimit 
I think this gives us the ability to open more files.
 2025-06-05 22:34:29 -04:00
Ahmad Abuziad
c5d7fdb0a3 util: Add a bunch of tests 
This improves our test coverage significantly.
 2025-04-22 03:18:49 -04:00
Edward Toroshchyn
c25a2a257b misc: Fix typos and spelling errors 2025-02-24 16:01:46 +01:00
James Shubin
f51a1200d1 util: Add a helper to get the users shell entry 2025-02-07 17:57:36 -05:00
James Shubin
ecd5a0f304 util, lang, etcd: Move the error type to our util package 
We use this error in a lot of places, let's centralize it a bit.
 2025-02-07 17:57:36 -05:00
James Shubin
7331d3a7ee util: pprof: Improve pprof for ease of use 
This makes it slightly cleaner.
 2025-01-31 00:00:05 -05:00
James Shubin
d30ff6cfae legal: Remove year 
Instead of constantly making these updates, let's just remove the year
since things are stored in git anyways, and this is not an actual modern
legal risk anymore.
 2025-01-26 16:24:51 -05:00
James Shubin
1d3f2dbe3c util: Add a pprof helper package 
As it turns out, there are other helper packages out there. I wrote this
before I realized that, and it didn't take me that long anyways.
 2025-01-24 03:06:31 -05:00
James Shubin
c2f75d64a6 util: arch: The Any value should be the same everywhere 
In 80e8c9cadc when this was ported, the
"Any" value diverged accidentally. This would cause some packages to not
be found, since they didn't match any arch.

Thanks to karpfen to digging into the issue.
 2024-11-28 14:55:30 -05:00
James Shubin
b40d10a366 util: Add a generic map key and value swapping function 
Fun little utility function which is useful.
 2024-11-21 02:54:10 -05:00
James Shubin
3fb492f6aa util: Add a TLS helper 
Make it easier to build TLS stuff in pure golang.
 2024-11-01 19:41:35 -04:00
James Shubin
b140b2dfeb util: Move executable path finding into a helper function 2024-10-29 16:41:37 -04:00
James Shubin
8e3d959500 util: We prefer to append rather than truncate 
This makes this utility function more useful.
 2024-10-29 16:41:37 -04:00
James Shubin
8c886bbe7c util: Nil input to our simple cmd helper should be allowed 
Don't panic here!
 2024-10-29 16:41:37 -04:00
James Shubin
7d204dfb74 util: Add a simple append file write function 
Similar to the golang os lib version except we append.
 2024-10-29 16:39:46 -04:00
James Shubin
583f90dc7b util: distro: Rename functions to avoid golang stutter warning 2024-10-25 02:56:12 -04:00
James Shubin
2c967e3897 util: Add a simple template system for systemd unit files 
Just the basics for what we need, nothing more. Not intended as a
general-purpose library for use elsewhere.
 2024-10-24 17:29:00 -04:00
James Shubin
202a8e1fba util: Add a small helper to exec commands simply 2024-10-18 10:02:29 -04:00
James Shubin
e6085d77ff util: Add an flock utility for lock file type things 
Useful for ensuring only one binary runs at the same time.
 2024-10-18 10:02:29 -04:00
James Shubin
067eef9007 util: distro, engine: resources: Update virt-builder res 
A little easier to maintain if we support more distros eventually.
 2024-10-15 20:36:51 -04:00
James Shubin
e45d9be065 util: distro: Parse the os-release file 2024-10-15 20:36:51 -04:00
James Shubin
d24149518c util: distro: Refactor family and distro code 
I hate writing abstraction code like this, but I'm hoping it will be
useful.
 2024-10-15 20:36:50 -04:00
James Shubin
d403f18b2a util: distro: Put distro specific data in this util package 
Try and see if we can put all our distro specific stuff in here...
 2024-10-15 19:04:17 -04:00
James Shubin
b514022713 util: Add some path manipulation algorithms 
These could use some optimization by an algorithmist! Not urgent right
now since they're not currently in any fast paths in the code.
 2024-10-05 01:02:03 -04:00
James Shubin
74119a0a53 lang: core: strings, util: Add left and right padding functions 
Golang didn't want these in the standard library, but they are useful.
 2024-10-03 13:49:08 -04:00
James Shubin
13fc711657 util: Expanding home directory should preserve trailing slash 
Because we consider slashes as a directory identifier when needed.
 2024-09-26 12:29:43 -04:00
James Shubin
80e8c9cadc util: arch: Use small arch util library 
Put all of the arch stuff that we can into this library.
 2024-09-25 16:25:55 -04:00
James Shubin
06cc63fcb6 util: recwatch: Add a helper function for merging these 
I should really rework the recwatch package and API, but I wasn't in the
mood to touch this code today, so this will have to do for now.
 2024-09-13 19:48:00 -04:00
James Shubin
0a183dfff9 lang: funcs: txn, util: Fix typos 2024-07-25 12:44:58 -04:00
James Shubin
74f747e80b util: password: Fix suspicious dep issue 
It seems that without warning, the author of this dep has nuked the old
version, and reorganized the source tree significantly. I'm not an
expert and cryptography routines, but this doesn't make me feel warm
inside. I hope more expert researchers could look into this so that we
avoid supply chain attacks.
 2024-07-07 12:47:14 -04:00
James Shubin
6066cbf075 util: Add disjoint package to implement a union find datastructure 
This is a fascinating, and incredibly simple data structure. I hope I
can end up using it for more than just type unification!

Thanks to Sam who taught me about its existence.
 2024-07-01 14:05:48 -04:00
James Shubin
c12452b3ce misc: Move to golang 1.21 
Unfortunately, this also breaks go-mod-upgrade with:

upgrade failed error=Error running go command to discover modules: exit
status 1 stderr=go: loading module retractions for
golang.org/x/mod@v0.16.0: version "v0.17.0" invalid: resolves to version
v0.17.1-0.20240315155916-aa51b25a4485 (v0.17.0 is not a tag) go: loading
module retractions for golang.org/x/sync@v0.6.0: version "v0.7.0"
invalid: resolves to version v0.7.1-0.20240304172602-14be23e5b48b
(v0.7.0 is not a tag)
 2024-04-25 13:01:41 -04:00
James Shubin
964bd8ba61 util: Skip badly numbered versions 
This let's us skip over pre-release versions like "40 Beta" or similar.
 2024-03-30 13:54:09 -04:00
James Shubin
f75f6623b3 util: recwatch: Improve godoc 2024-03-22 02:56:59 -04:00
James Shubin
43b5a0ea6a util: recwatch: Remove last use of core logger 
We've cleaned up quite a bit, yay!
 2024-03-22 02:56:59 -04:00
James Shubin
b8a3c39984 util: password: Add a new helper util function for passwords 
Also fix some doc issues from an earlier copy paste.
 2024-03-22 00:55:03 -04:00
James Shubin
6347e275d3 util: Add a fedora mirror lookup function 2024-03-18 15:38:57 -04:00
James Shubin
4d18044851 util: Move recwatch package to util directory 
This makes more sense and this is also a reminded that it needs a bit of
a cleanup.
 2024-03-16 01:21:32 -04:00
James Shubin
6976f5f3f0 util: Add simple distro release version function 
This helps us determine the latest version automatically as a user
convenience.
 2024-03-08 17:57:13 -05:00
James Shubin
36ebddf986 util: Add a terrible heuristic for getting ethernet devices 
I don't know of a better way. This will have to do for now.
 2024-03-08 17:57:13 -05:00
James Shubin
b496f8d70a util: password: Add a helper to generate salted, hashed passwords 
I have no idea if I'm doing this correctly, and I have no idea if the
library I am using is doing this correctly. Please check!
 2024-03-08 17:57:13 -05:00
James Shubin
90f6d4e563 legal: Update http to https 2024-03-05 01:05:50 -05:00
James Shubin
3e31ee9455 legal: Additional permission under GNU GPL version 3 section 7 
With the recent merging of embedded package imports and the entry CLI
package, it is now possible for users to build in mcl code into a single
binary. This additional permission makes it explicitly clear that this
is permitted to make it easier for those users. The condition is phrased
so that the terms can be "patched" by the original author if it's
necessary for the project. For example, if the name of the language
(mcl) changes, has a differently named new version, someone finds a
phrasing improvement or a legal loophole, or for some other
reasonable circumstance. Now go write some beautiful embedded tools!
 2024-03-05 01:04:09 -05:00
James Shubin
f818f5ccf5 util: errwrap: Add more tests 2024-02-28 16:37:28 -05:00