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deps: jolt-deps finds the jolt binary next to itself

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Running a checkout's build/jolt-deps by path failed with ENOENT unless
build/ was also on PATH: exec-jolt spawned a bare "jolt". Resolution is
now $JOLT_BIN, then the jolt sitting beside this binary (argv[0]'s
directory — the pair is built together), then PATH.
This commit is contained in:
Yogthos 2026-06-11 21:10:10 -04:00
parent 06e0899578
commit 9aa1479d81
1 changed files with 16 additions and 1 deletions
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17
src/jolt/deps_cli.janet
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@ -34,13 +34,28 @@
(defn- roots [aliases]
(if (os/stat "deps.edn") (deps/resolve-deps-cached "deps.edn" nil aliases) @[]))
(defn- jolt-bin
"The jolt executable: $JOLT_BIN, else the `jolt` sitting NEXT TO this
jolt-deps binary (the pair is built together — running a checkout's
build/jolt-deps by path must not pick up some other jolt, or fail when
none is on PATH), else `jolt` from PATH."
[]
(or (os/getenv "JOLT_BIN")
(let [self (or (first (dyn :args)) (dyn :executable))
slashes (when self (string/find-all "/" self))
dir (when (and slashes (> (length slashes) 0))
(string/slice self 0 (last slashes)))
sibling (when dir (string dir "/jolt"))]
(when (and sibling (os/stat sibling)) sibling))
"jolt"))
(defn- exec-jolt [aliases extra-args]
# Set JOLT_PATH in our own env and let the child inherit it (os/execute's env
# arg isn't honored here; inheriting is reliable).
(def rs (string/join (roots aliases) ":"))
(def existing (os/getenv "JOLT_PATH"))
(os/setenv "JOLT_PATH" (if (and existing (> (length existing) 0)) (string rs ":" existing) rs))
(os/execute [(os/getenv "JOLT_BIN" "jolt") ;extra-args] :p))
(os/execute [(jolt-bin) ;extra-args] :p))
(defn- usage []
(print "usage: jolt-deps [-A:alias[:alias]] [path | run FILE [args] | repl | -e EXPR [args]]")