commit 2de4d7a8f9cccb43875d8b378db2dbd9f70bbdb0
parent c3bb33c9ce9f1e337ae48eec4c6d345d83418787
Author: Daniel Barlow <dan@telent.net>
Date: Wed, 5 Jul 2023 20:23:27 +0100
fennel: extract some common functions into a shareable module
Diffstat:
7 files changed, 60 insertions(+), 21 deletions(-)
diff --git a/examples/acquire-delegated-prefix.fnl b/examples/acquire-delegated-prefix.fnl
@@ -1,12 +1,5 @@
(local inotify (require :inotify))
-
-(fn merge [table1 table2]
- (collect [k v (pairs table2) &into table1]
- k v))
-
-(fn split [sep string]
- (icollect [v (string.gmatch string (.. "([^" sep "]+)"))]
- v))
+(local { : merge : split : file-exists? : system } (require :anoia))
(fn parse-prefix [str]
(fn parse-extra [s]
@@ -24,12 +17,6 @@
;;(parse-prefix "2001:8b0:de3a:40dc::/64,7198,7198")
;;(parse-prefix "2001:8b0:de3a:1001::/64,7198,7188,excluded=1/2,thi=10")
-
-(fn file-exists? [name]
- (match (io.open name :r)
- f (do (f:close) true)
- _ false))
-
(fn read-line [name]
(with-open [f (assert (io.open name :r) (.. "can't open file " name))]
(f:read "*l")))
@@ -80,9 +67,6 @@
(table.insert deleted (parse-prefix prefix))))
(values added deleted)))
-;;(fn execute [s] (do (print s) true))
-(fn execute [s] (assert (os.execute s)))
-
(let [[state-directory lan-device] arg
dir (watch-directory state-directory)]
(var prefixes [])
@@ -92,10 +76,10 @@
(let [new-prefixes (split " " (dir:read-line "/prefixes"))
(added deleted) (changes prefixes new-prefixes)]
(each [_ p (ipairs added)]
- (execute
+ (system
(.. "ip address add " p.prefix "::1/" p.len " dev " lan-device)))
(each [_ p (ipairs deleted)]
- (execute
+ (system
(.. "ip address del " p.prefix "::1/" p.len " dev " lan-device)))
(set prefixes new-prefixes)))
(dir:wait-events)))
diff --git a/examples/acquire-delegated-prefix.nix b/examples/acquire-delegated-prefix.nix
@@ -1,7 +1,8 @@
{
writeFennelScript
, linotify
+, anoia
}:
writeFennelScript "acquire-delegated-prefix"
- [ linotify ]
+ [ linotify anoia ]
./acquire-delegated-prefix.fnl
diff --git a/pkgs/anoia/README b/pkgs/anoia/README
@@ -0,0 +1,14 @@
+
+In Terry Pratchett's Discworld novels, Anoi is a minor goddess of Things That Stick In Drawers
+
+> Often, but not uniquely, a ladle, but sometimes a metal spatula or,
+> rarely, a mechanical egg-whisk that nobody in the house admits to
+> ever buying. The desperate mad rattling and cries of ‘How can it
+> close on the damn thing but not open with it? Who bought this? Do we
+> ever use it?’ is as praise unto Anoia. She also eats corkscrews.
+
+This is a library of miscellaneous Fennel code used in Liminix that is
+shared between various scripts but doesn't really fit together. It is
+not a public stable interface - while any Liminix code is welcome to
+use it, it's suject to reshuffle, rearrangement, refactor or rejection
+without notice.
diff --git a/pkgs/anoia/default.nix b/pkgs/anoia/default.nix
@@ -0,0 +1,19 @@
+{
+ fennel
+, stdenv
+, lua
+}:
+let pname = "anoia";
+in stdenv.mkDerivation {
+ inherit pname;
+ version = "0.1";
+ src = ./.;
+ nativeBuildInputs = [ fennel ];
+ buildPhase = ''
+ fennel --compile init.fnl > init.lua
+ '';
+ installPhase = ''
+ mkdir -p "$out/share/lua/${lua.luaversion}/${pname}"
+ cp *.lua "$out/share/lua/${lua.luaversion}/${pname}"
+ '';
+}
diff --git a/pkgs/anoia/init.fnl b/pkgs/anoia/init.fnl
@@ -0,0 +1,16 @@
+(fn merge [table1 table2]
+ (collect [k v (pairs table2) &into table1]
+ k v))
+
+(fn split [sep string]
+ (icollect [v (string.gmatch string (.. "([^" sep "]+)"))]
+ v))
+
+(fn file-exists? [name]
+ (match (io.open name :r)
+ f (do (f:close) true)
+ _ false))
+
+(fn system [s] (assert (os.execute s)))
+
+{ : merge : split : file-exists? : system }
diff --git a/pkgs/default.nix b/pkgs/default.nix
@@ -58,4 +58,5 @@
odhcp-script = callPackage ./odhcp-script {};
fennel = callPackage ./fennel {};
fennelrepl = callPackage ./fennelrepl {};
+ anoia = callPackage ./anoia {};
}
diff --git a/pkgs/write-fennel-script/default.nix b/pkgs/write-fennel-script/default.nix
@@ -6,7 +6,11 @@
}:
name : packages : source :
let
- luapath = builtins.map (f: "${f}/share/lua/${lua.luaversion}/?.lua;") packages;
+ luapath = builtins.map
+ (f:
+ "${f}/share/lua/${lua.luaversion}/?.lua;" +
+ "${f}/share/lua/${lua.luaversion}/?/init.lua;")
+ packages;
luacpath = builtins.map (f: "${f}/lib/lua/${lua.luaversion}/?.so;") packages;
in stdenv.mkDerivation {
inherit name;
