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use correct name for topological sort (#5)

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I am 0.8 sure this is a typo, I've never seen this being referred to as topographic sorting!

Reviewed-on: #5
Reviewed-by: Jake Hamilton <jake.hamilton@hey.com>
Co-authored-by: Alex Kladov <aleksey.kladov@gmail.com>
Co-committed-by: Alex Kladov <aleksey.kladov@gmail.com>
This commit is contained in:
Alex Kladov 2024-06-23 18:39:30 +00:00 committed by Jake Hamilton
parent a2f0a06426
commit 8233d4aedf
4 changed files with 9 additions and 9 deletions
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4
lib/src/dag/default.nix
View file

@ -21,7 +21,7 @@ lib: {
## Apply a topological sort to a DAG. ## Apply a topological sort to a DAG.
## ##
## @type Dag a -> { result :: List a } | { cycle :: List a, loops :: List a } ## @type Dag a -> { result :: List a } | { cycle :: List a, loops :: List a }
topographic = topological =
graph: graph:
let let
getEntriesBefore = getEntriesBefore =
@ -43,7 +43,7 @@ lib: {
isBefore = a: b: builtins.elem a.name b.after; isBefore = a: b: builtins.elem a.name b.after;
sorted = lib.lists.sort.topographic isBefore entries; sorted = lib.lists.sort.topological isBefore entries;
in in
if sorted ? result then if sorted ? result then
{ {

6
lib/src/dag/default.test.nix
View file

@ -119,11 +119,11 @@ in
}; };
"sort" = { "sort" = {
"topographic" = { "topological" = {
"handles an empty graph" = "handles an empty graph" =
let let
expected = [ ]; expected = [ ];
actual = lib.dag.sort.topographic { }; actual = lib.dag.sort.topological { };
in in
actual.result == expected; actual.result == expected;
@ -147,7 +147,7 @@ in
value = "d"; value = "d";
} }
]; ];
actual = lib.dag.sort.topographic { actual = lib.dag.sort.topological {
a = lib.dag.entry.anywhere "a"; a = lib.dag.entry.anywhere "a";
b = lib.dag.entry.between [ "c" ] [ "a" ] "b"; b = lib.dag.entry.between [ "c" ] [ "a" ] "b";
c = lib.dag.entry.before [ "c" ] "c"; c = lib.dag.entry.before [ "c" ] "c";

6
lib/src/lists/default.nix
View file

@ -31,15 +31,15 @@ lib: {
in in
builtins.map (x: builtins.elemAt x 1) (builtins.sort isLess prepared); builtins.map (x: builtins.elemAt x 1) (builtins.sort isLess prepared);
## Perform a topographic sort on a list of items. The predicate function determines whether ## Perform a topological sort on a list of items. The predicate function determines whether
## its first argument comes before the second argument. ## its first argument comes before the second argument.
## ##
## @type (a -> a -> Bool) -> List a -> List a ## @type (a -> a -> Bool) -> List a -> List a
topographic = topological =
predicate: list: predicate: list:
let let
searched = lib.lists.search.depthFirst true predicate list; searched = lib.lists.search.depthFirst true predicate list;
results = lib.lists.sort.topographic predicate (searched.visited ++ searched.rest); results = lib.lists.sort.topological predicate (searched.visited ++ searched.rest);
in in
if builtins.length list < 2 then if builtins.length list < 2 then
{ result = list; } { result = list; }

2
tidepool/src/builders/basic.nix
View file

@ -15,7 +15,7 @@ in
package: package:
let let
phases = package.phases; phases = package.phases;
sorted = lib.dag.sort.topographic phases; sorted = lib.dag.sort.topological phases;
script = lib.strings.concatMapSep "\n" ( script = lib.strings.concatMapSep "\n" (
entry: if builtins.isFunction entry.value then entry.value package else entry.value entry: if builtins.isFunction entry.value then entry.value package else entry.value