| Commit message (Collapse) | Author | Age |
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The previous example output was forgotten copy-paste from some other
function.
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Given a string, this function returns a string that can be inserted
verbatim in an XML document.
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The current implementation of the concatStringsSep fallback references
concatStrings whcih is just a partial application of concatStringsSep,
forming a circular dependency. Although this will almost never be
encountered as (assuming the user does not explicitly trigger it):
1. the or operator will short circuit both in lazy and strict
evaluation
2. this can only occur in Nix versions prior to 1.10
which is not compatible with various nix operations as of 2.3.15
However it is still important if scopedImport is used or the builtins
have been overwritten. lib.foldl' is used instead of builtins.foldl'
as the foldl' primops was introduced in the same release as concatStringsSep.
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These functions work on lists of anything, not just lists of strings.
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When a list is passed to isStorePath this is most likely a mistake and
it is therefore better to just return false. There is one case where
this theoretically makes sense (if a list contains a single element for
which isStorePath elem), but since that case is also probably seldomly
intentional, it may save someone from debbuging unclear evaluation
errors.
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Since it checks if dirOf x is the nix store dir, a trailing slash will
break this check and make it return false.
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Describing the string argument as a string is redundant and not needed
to describe what this function does.
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The example refers to a snake_case function name but Nix uses camelCase
function names. This ensures the example is correct for the given
function.
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The As was missing in the examples on this library function. This will
ensure the examples refer to the function they document.
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lib/strings: guard against an easy mistake
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This would catch the bad `fwknop` flags fixed in 580cab57e4,
during evaluation already.
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Nix can perform static scope checking, but whenever code is inside
a `with` expression, the analysis breaks down, because it can't
know statically what's in the attribute set whose attributes were
brought into scope. In those cases, Nix has to assume that
everything works out.
Except it doesnt. Removing `with` from lib/ revealed an undefined
variable in an error message.
If that doesn't convince you that we're better off without `with`,
I can tell you that this PR results in a 3% evaluation performance
improvement because Nix can look up local variables by index.
This adds up with applications like the module system.
Furthermore, removing `with` makes the binding site of each
variable obvious, which helps with comprehension.
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> NOTE: This function is not performant and should be avoided.
It's not used at all in-tree now, so we can remove it completely after
any remaining users are given notice.
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lib/strings: Add `sanitizeDerivationName` function
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In 87a19e9048773d5a363679617406ad148d36c3b8 I merged staging-next into master using the GitHub gui as intended.
In ac241fb7a570d6cf81d229ad22a8889602639160 I merged master into staging-next for the next staging cycle, however, I accidentally pushed it to master.
Thinking this may cause trouble, I reverted it in 0be87c79797a5fa384fbc356c74ed54f9f7829ea. This was however wrong, as it "removed" master.
This reverts commit 0be87c79797a5fa384fbc356c74ed54f9f7829ea.
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I merged master into staging-next but accidentally pushed it to master.
This should get us back to 87a19e9048773d5a363679617406ad148d36c3b8.
This reverts commit ac241fb7a570d6cf81d229ad22a8889602639160, reversing
changes made to 76a439239eb310d9ad76d998b34d5d3bc0e37acb.
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Update library function "docstrings" for nixdoc generation
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Updates documentation comments with extra information for nixdoc[1]
compatibility.
Some documentation strings have additionally been reworded for
clarity.
"Faux types" are added where applicable, but some functions do things
that are not trivially representable in the type notation used so they
were ignored for this purpose.
[1]: https://github.com/tazjin/nixdoc
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Since `isStorePath` relies on comparing against builtins.storeDir
(a string), we need to convert the input into a string as well.
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toPath has confusing semantics and is never necessary; it can always
either just be omitted or replaced by pre-concatenating `/.`. It has
been marked as "!!! obsolete?" for more than 10 years in a C++
comment, hopefully removing it will let us properly deprecate and,
eventually, remove it.
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- moved function into strings.nix
- renamed function from makePerl5Lib
- removed duplicates entries in the resulting value
- rewrote the function from scratch after learning a few things (much cleaner now)
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fixes build with disallowed aliases
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Add with/without to match enable/disable, and add
`--{enable,with}-key=value` versions of both.
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This makes things match ‘buildInputs’ where inputs are allowed to be
null.
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This does break the API of being able to import any lib file and get
its libs, however I'm not sure people did this.
I made this while exploring being able to swap out docFn with a stub
in #2305, to avoid functor performance problems. I don't know if that
is going to move forward (or if it is a problem or not,) but after
doing all this work figured I'd put it up anyway :)
Two notable advantages to this approach:
1. when a lib inherits another lib's functions, it doesn't
automatically get put in to the scope of lib
2. when a lib implements a new obscure functions, it doesn't
automatically get put in to the scope of lib
Using the test script (later in this commit) I got the following diff
on the API:
+ diff master fixed-lib
11764a11765,11766
> .types.defaultFunctor
> .types.defaultTypeMerge
11774a11777,11778
> .types.isOptionType
> .types.isType
11781a11786
> .types.mkOptionType
11788a11794
> .types.setType
11795a11802
> .types.types
This means that this commit _adds_ to the API, however I can't find a
way to fix these last remaining discrepancies. At least none are
_removed_.
Test script (run with nix-repl in the PATH):
#!/bin/sh
set -eux
repl() {
suff=${1:-}
echo "(import ./lib)$suff" \
| nix-repl 2>&1
}
attrs_to_check() {
repl "${1:-}" \
| tr ';' $'\n' \
| grep "\.\.\." \
| cut -d' ' -f2 \
| sed -e "s/^/${1:-}./" \
| sort
}
summ() {
repl "${1:-}" \
| tr ' ' $'\n' \
| sort \
| uniq
}
deep_summ() {
suff="${1:-}"
depth="${2:-4}"
depth=$((depth - 1))
summ "$suff"
for attr in $(attrs_to_check "$suff" | grep -v "types.types"); do
if [ $depth -eq 0 ]; then
summ "$attr" | sed -e "s/^/$attr./"
else
deep_summ "$attr" "$depth" | sed -e "s/^/$attr./"
fi
done
}
(
cd nixpkgs
#git add .
#git commit -m "Auto-commit, sorry" || true
git checkout fixed-lib
deep_summ > ../fixed-lib
git checkout master
deep_summ > ../master
)
if diff master fixed-lib; then
echo "SHALLOW MATCH!"
fi
(
cd nixpkgs
git checkout fixed-lib
repl .types
)
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* lib: introduce imap0, imap1
For historical reasons, imap starts counting at 1 and it's not
consistent with the rest of the lib.
So for now we split imap into imap0 that starts counting at zero and
imap1 that starts counting at 1. And imap is marked as deprecated.
See https://github.com/NixOS/nixpkgs/commit/c71e2d42359f9900ea2c290d141c0d606471da16#commitcomment-21873221
* replace uses of lib.imap
* lib: move imap to deprecated.nix
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fix #9278
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This part isn't needed after 36de745e1b7.
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The final newline would produce an empty string;
let's filter all empty lines as well.
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* libs: make splitString also split last separator
* libs: add tests for splitStrings
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