From 65cb0e8b24db938638201d846f2c2a79e7df3263 Mon Sep 17 00:00:00 2001
From: Ed Morley <501702+edmorley@users.noreply.github.com>
Date: Fri, 28 Apr 2023 14:48:15 +0100
Subject: [PATCH 1/4] Update to libcnb 0.12.0 and Buildpack API 0.9

libcnb 0.12.0 includes an upgrade from Buildpack APi 0.8 to 0.9:
https://github.com/heroku/libcnb.rs/releases/tag/v0.12.0

In buildpack API 0.9 implicit usage of bash via `direct=false` mode has
been removed:
https://github.com/buildpacks/spec/releases/tag/buildpack%2Fv0.9
https://github.com/buildpacks/rfcs/blob/main/text/0093-remove-shell-processes.md

As such, this buildpack now needs to explicitly wrap the procfile commands in a
`bash -c "exec <command>"` invocation, similar to what the Python CNB already
does for Python Functions:
https://github.com/heroku/buildpacks-python/blob/76795e93cac436724b0f854c22b8df058418e728/src/salesforce_functions.rs#L57-L76

Closes #147.
Closes #148.
Closes #149.
GUS-W-13119392.
---
 CHANGELOG.md   |   3 +
 Cargo.lock     | 513 +++++++++++++++++++++++++++++++------------------
 Cargo.toml     |   6 +-
 buildpack.toml |   2 +-
 src/launch.rs  |  50 ++---
 5 files changed, 354 insertions(+), 220 deletions(-)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 90cea12..8fc0e9d 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,8 @@
 ## Unreleased
 
+- Upgrade `libcnb` and `libherokubuildpack` to `0.12.0`. ([#150](https://github.com/heroku/procfile-cnb/pull/150))
+- The buildpack now implements Buildpack API 0.9 instead of 0.8, and so requires `lifecycle` 0.15.x or newer. ([#150](https://github.com/heroku/procfile-cnb/pull/150))
+
 ## 2.0.0
 
 - Remove redundant explicitly named stacks from `[[stacks]]`. ([#103](https://github.com/heroku/procfile-cnb/pull/103))
diff --git a/Cargo.lock b/Cargo.lock
index 6be03fb..c3cfe0e 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -100,21 +100,21 @@ dependencies = [
 
 [[package]]
 name = "bumpalo"
-version = "3.12.0"
+version = "3.12.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0d261e256854913907f67ed06efbc3338dfe6179796deefc1ff763fc1aee5535"
+checksum = "9b1ce199063694f33ffb7dd4e0ee620741495c32833cde5aa08f02a0bf96f0c8"
 
 [[package]]
 name = "bytes"
-version = "1.3.0"
+version = "1.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dfb24e866b15a1af2a1b663f10c6b6b8f397a84aadb828f12e5b289ec23a3a3c"
+checksum = "89b2fd2a0dcf38d7971e2194b6b6eebab45ae01067456a7fd93d5547a61b70be"
 
 [[package]]
 name = "camino"
-version = "1.1.1"
+version = "1.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "88ad0e1e3e88dd237a156ab9f571021b8a158caa0ae44b1968a241efb5144c1e"
+checksum = "c530edf18f37068ac2d977409ed5cd50d53d73bc653c7647b48eb78976ac9ae2"
 dependencies = [
  "serde",
 ]
@@ -130,9 +130,9 @@ dependencies = [
 
 [[package]]
 name = "cargo_metadata"
-version = "0.15.2"
+version = "0.15.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "982a0cf6a99c350d7246035613882e376d58cebe571785abc5da4f648d53ac0a"
+checksum = "eee4243f1f26fc7a42710e7439c149e2b10b05472f88090acce52632f231a73a"
 dependencies = [
  "camino",
  "cargo-platform",
@@ -156,9 +156,9 @@ checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
 [[package]]
 name = "chrono"
-version = "0.4.23"
+version = "0.4.24"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "16b0a3d9ed01224b22057780a37bb8c5dbfe1be8ba48678e7bf57ec4b385411f"
+checksum = "4e3c5919066adf22df73762e50cffcde3a758f2a848b113b586d1f86728b673b"
 dependencies = [
  "iana-time-zone",
  "num-integer",
@@ -179,15 +179,15 @@ dependencies = [
 
 [[package]]
 name = "core-foundation-sys"
-version = "0.8.3"
+version = "0.8.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5827cebf4670468b8772dd191856768aedcb1b0278a04f989f7766351917b9dc"
+checksum = "e496a50fda8aacccc86d7529e2c1e0892dbd0f898a6b5645b5561b89c3210efa"
 
 [[package]]
 name = "cxx"
-version = "1.0.90"
+version = "1.0.94"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "90d59d9acd2a682b4e40605a242f6670eaa58c5957471cbf85e8aa6a0b97a5e8"
+checksum = "f61f1b6389c3fe1c316bf8a4dccc90a38208354b330925bce1f74a6c4756eb93"
 dependencies = [
  "cc",
  "cxxbridge-flags",
@@ -197,9 +197,9 @@ dependencies = [
 
 [[package]]
 name = "cxx-build"
-version = "1.0.90"
+version = "1.0.94"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ebfa40bda659dd5c864e65f4c9a2b0aff19bea56b017b9b77c73d3766a453a38"
+checksum = "12cee708e8962df2aeb38f594aae5d827c022b6460ac71a7a3e2c3c2aae5a07b"
 dependencies = [
  "cc",
  "codespan-reporting",
@@ -207,31 +207,52 @@ dependencies = [
  "proc-macro2",
  "quote",
  "scratch",
- "syn",
+ "syn 2.0.15",
 ]
 
 [[package]]
 name = "cxxbridge-flags"
-version = "1.0.90"
+version = "1.0.94"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "457ce6757c5c70dc6ecdbda6925b958aae7f959bda7d8fb9bde889e34a09dc03"
+checksum = "7944172ae7e4068c533afbb984114a56c46e9ccddda550499caa222902c7f7bb"
 
 [[package]]
 name = "cxxbridge-macro"
-version = "1.0.90"
+version = "1.0.94"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ebf883b7aacd7b2aeb2a7b338648ee19f57c140d4ee8e52c68979c6b2f7f2263"
+checksum = "2345488264226bf682893e25de0769f3360aac9957980ec49361b083ddaa5bc5"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.15",
 ]
 
 [[package]]
 name = "either"
-version = "1.8.0"
+version = "1.8.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7fcaabb2fef8c910e7f4c7ce9f67a1283a1715879a7c230ca9d6d1ae31f16d91"
+
+[[package]]
+name = "errno"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4bcfec3a70f97c962c307b2d2c56e358cf1d00b558d74262b5f929ee8cc7e73a"
+dependencies = [
+ "errno-dragonfly",
+ "libc",
+ "windows-sys 0.48.0",
+]
+
+[[package]]
+name = "errno-dragonfly"
+version = "0.1.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "90e5c1c8368803113bf0c9584fc495a58b86dc8a29edbf8fe877d21d9507e797"
+checksum = "aa68f1b12764fab894d2755d2518754e71b4fd80ecfb822714a1206c2aab39bf"
+dependencies = [
+ "cc",
+ "libc",
+]
 
 [[package]]
 name = "fancy-regex"
@@ -245,9 +266,9 @@ dependencies = [
 
 [[package]]
 name = "fastrand"
-version = "1.8.0"
+version = "1.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a7a407cfaa3385c4ae6b23e84623d48c2798d06e3e6a1878f7f59f17b3f86499"
+checksum = "e51093e27b0797c359783294ca4f0a911c270184cb10f85783b118614a1501be"
 dependencies = [
  "instant",
 ]
@@ -269,53 +290,53 @@ dependencies = [
 
 [[package]]
 name = "fs_extra"
-version = "1.2.0"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2022715d62ab30faffd124d40b76f4134a550a87792276512b18d63272333394"
+checksum = "42703706b716c37f96a77aea830392ad231f44c9e9a67872fa5548707e11b11c"
 
 [[package]]
 name = "futures-channel"
-version = "0.3.25"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "52ba265a92256105f45b719605a571ffe2d1f0fea3807304b522c1d778f79eed"
+checksum = "955518d47e09b25bbebc7a18df10b81f0c766eaf4c4f1cccef2fca5f2a4fb5f2"
 dependencies = [
  "futures-core",
 ]
 
 [[package]]
 name = "futures-core"
-version = "0.3.25"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "04909a7a7e4633ae6c4a9ab280aeb86da1236243a77b694a49eacd659a4bd3ac"
+checksum = "4bca583b7e26f571124fe5b7561d49cb2868d79116cfa0eefce955557c6fee8c"
 
 [[package]]
 name = "futures-macro"
-version = "0.3.25"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bdfb8ce053d86b91919aad980c220b1fb8401a9394410e1c289ed7e66b61835d"
+checksum = "89ca545a94061b6365f2c7355b4b32bd20df3ff95f02da9329b34ccc3bd6ee72"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.15",
 ]
 
 [[package]]
 name = "futures-sink"
-version = "0.3.25"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "39c15cf1a4aa79df40f1bb462fb39676d0ad9e366c2a33b590d7c66f4f81fcf9"
+checksum = "f43be4fe21a13b9781a69afa4985b0f6ee0e1afab2c6f454a8cf30e2b2237b6e"
 
 [[package]]
 name = "futures-task"
-version = "0.3.25"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2ffb393ac5d9a6eaa9d3fdf37ae2776656b706e200c8e16b1bdb227f5198e6ea"
+checksum = "76d3d132be6c0e6aa1534069c705a74a5997a356c0dc2f86a47765e5617c5b65"
 
 [[package]]
 name = "futures-util"
-version = "0.3.25"
+version = "0.3.28"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "197676987abd2f9cadff84926f410af1c183608d36641465df73ae8211dc65d6"
+checksum = "26b01e40b772d54cf6c6d721c1d1abd0647a0106a12ecaa1c186273392a69533"
 dependencies = [
  "futures-core",
  "futures-macro",
@@ -327,9 +348,9 @@ dependencies = [
 
 [[package]]
 name = "h2"
-version = "0.3.17"
+version = "0.3.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "66b91535aa35fea1523ad1b86cb6b53c28e0ae566ba4a460f4457e936cad7c6f"
+checksum = "17f8a914c2987b688368b5138aa05321db91f4090cf26118185672ad588bce21"
 dependencies = [
  "bytes",
  "fnv",
@@ -359,6 +380,12 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "hermit-abi"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fed44880c466736ef9a5c5b5facefb5ed0785676d0c02d612db14e54f0d84286"
+
 [[package]]
 name = "hex"
 version = "0.4.3"
@@ -367,9 +394,9 @@ checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
 
 [[package]]
 name = "http"
-version = "0.2.8"
+version = "0.2.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "75f43d41e26995c17e71ee126451dd3941010b0514a81a9d11f3b341debc2399"
+checksum = "bd6effc99afb63425aff9b05836f029929e345a6148a14b7ecd5ab67af944482"
 dependencies = [
  "bytes",
  "fnv",
@@ -401,9 +428,9 @@ checksum = "c4a1e36c821dbe04574f602848a19f742f4fb3c98d40449f11bcad18d6b17421"
 
 [[package]]
 name = "hyper"
-version = "0.14.23"
+version = "0.14.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "034711faac9d2166cb1baf1a2fb0b60b1f277f8492fd72176c17f3515e1abd3c"
+checksum = "ab302d72a6f11a3b910431ff93aae7e773078c769f0a3ef15fb9ec692ed147d4"
 dependencies = [
  "bytes",
  "futures-channel",
@@ -438,16 +465,16 @@ dependencies = [
 
 [[package]]
 name = "iana-time-zone"
-version = "0.1.53"
+version = "0.1.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "64c122667b287044802d6ce17ee2ddf13207ed924c712de9a66a5814d5b64765"
+checksum = "0722cd7114b7de04316e7ea5456a0bbb20e4adb46fd27a3697adb812cff0f37c"
 dependencies = [
  "android_system_properties",
  "core-foundation-sys",
  "iana-time-zone-haiku",
  "js-sys",
  "wasm-bindgen",
- "winapi",
+ "windows",
 ]
 
 [[package]]
@@ -472,9 +499,9 @@ dependencies = [
 
 [[package]]
 name = "indexmap"
-version = "1.9.2"
+version = "1.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1885e79c1fc4b10f0e172c475f458b7f7b93061064d98c3293e98c5ba0c8b399"
+checksum = "bd070e393353796e801d209ad339e89596eb4c8d430d18ede6a1cced8fafbd99"
 dependencies = [
  "autocfg",
  "hashbrown",
@@ -496,11 +523,22 @@ dependencies = [
  "cfg-if",
 ]
 
+[[package]]
+name = "io-lifetimes"
+version = "1.0.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c66c74d2ae7e79a5a8f7ac924adbe38ee42a859c6539ad869eb51f0b52dc220"
+dependencies = [
+ "hermit-abi 0.3.1",
+ "libc",
+ "windows-sys 0.48.0",
+]
+
 [[package]]
 name = "itoa"
-version = "1.0.5"
+version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fad582f4b9e86b6caa621cabeb0963332d92eea04729ab12892c2533951e6440"
+checksum = "453ad9f582a441959e5f0d088b02ce04cfe8d51a8eaf077f12ac6d3e94164ca6"
 
 [[package]]
 name = "js-sys"
@@ -513,15 +551,15 @@ dependencies = [
 
 [[package]]
 name = "libc"
-version = "0.2.139"
+version = "0.2.142"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "201de327520df007757c1f0adce6e827fe8562fbc28bfd9c15571c66ca1f5f79"
+checksum = "6a987beff54b60ffa6d51982e1aa1146bc42f19bd26be28b0586f252fccf5317"
 
 [[package]]
 name = "libcnb"
-version = "0.11.5"
+version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4e4fd7573558173267930e31446da65a0275770bde88847cad4b4cf9a6ff8375"
+checksum = "027cd4a736600564c4e7aebf124eabb9d7dc622bcfeefb414cc7c4c7d7ac6595"
 dependencies = [
  "libcnb-data",
  "libcnb-proc-macros",
@@ -532,9 +570,9 @@ dependencies = [
 
 [[package]]
 name = "libcnb-data"
-version = "0.11.5"
+version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8c0112478d479c8900929894426818bea8e769ce923536a58baac719d3ca4dcb"
+checksum = "6e8840246c7aced3307fa193edc5d26482f92f992986a33860b6b3b523a67975"
 dependencies = [
  "fancy-regex",
  "libcnb-proc-macros",
@@ -545,9 +583,9 @@ dependencies = [
 
 [[package]]
 name = "libcnb-package"
-version = "0.11.5"
+version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "aacd18d358a1078cf48f518ef8398c504f8d4fc691ba2e8773bafa1a71d66b59"
+checksum = "27205236a28660f7395598a3f65afb9315de8ce3054c39375b0be673fa6288e7"
 dependencies = [
  "cargo_metadata",
  "libcnb-data",
@@ -557,21 +595,21 @@ dependencies = [
 
 [[package]]
 name = "libcnb-proc-macros"
-version = "0.11.5"
+version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5930cea22615255081c0c44b902e6e8b37a824ebe1374a7c7d52724d5b7d6e4e"
+checksum = "c9e31cc93a20d00f1d54ecb55dcff681669871e6d8a8b63ac0320e77fca1987c"
 dependencies = [
  "cargo_metadata",
  "fancy-regex",
  "quote",
- "syn",
+ "syn 2.0.15",
 ]
 
 [[package]]
 name = "libcnb-test"
-version = "0.11.5"
+version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f86e8c1847c8ba3c37e30841ee241887203110f4373731e7967706ab77c42b7d"
+checksum = "ff3f26e5f4ad90ea4036618dcba858c567f8c46a281daa72856eab3be0972885"
 dependencies = [
  "bollard",
  "cargo_metadata",
@@ -587,9 +625,9 @@ dependencies = [
 
 [[package]]
 name = "libherokubuildpack"
-version = "0.11.5"
+version = "0.12.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "878674906e0140191f89047ef1e8c142cb31becce91b4e64b1b6419fe03da7c1"
+checksum = "4ee2764ebf688454c4fcbcd7c52ff277b5cb2e196c502ff4ce92de563cb10ea2"
 dependencies = [
  "libcnb",
  "termcolor",
@@ -610,6 +648,12 @@ version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0717cef1bc8b636c6e1c1bbdefc09e6322da8a9321966e8928ef80d20f7f770f"
 
+[[package]]
+name = "linux-raw-sys"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b64f40e5e03e0d54f03845c8197d0291253cdbedfb1cb46b13c2c117554a9f4c"
+
 [[package]]
 name = "log"
 version = "0.4.17"
@@ -627,23 +671,14 @@ checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
 
 [[package]]
 name = "mio"
-version = "0.8.5"
+version = "0.8.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e5d732bc30207a6423068df043e3d02e0735b155ad7ce1a6f76fe2baa5b158de"
+checksum = "5b9d9a46eff5b4ff64b45a9e316a6d1e0bc719ef429cbec4dc630684212bfdf9"
 dependencies = [
  "libc",
  "log",
  "wasi",
- "windows-sys",
-]
-
-[[package]]
-name = "nom8"
-version = "0.2.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ae01545c9c7fc4486ab7debaf2aad7003ac19431791868fb2e8066df97fad2f8"
-dependencies = [
- "memchr",
+ "windows-sys 0.45.0",
 ]
 
 [[package]]
@@ -671,15 +706,15 @@ version = "1.15.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0fac9e2da13b5eb447a6ce3d392f23a29d8694bff781bf03a16cd9ac8697593b"
 dependencies = [
- "hermit-abi",
+ "hermit-abi 0.2.6",
  "libc",
 ]
 
 [[package]]
 name = "once_cell"
-version = "1.17.0"
+version = "1.17.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6f61fba1741ea2b3d6a1e3178721804bb716a68a6aeba1149b5d52e3d464ea66"
+checksum = "b7e5500299e16ebb147ae15a00a942af264cf3688f47923b8fc2cd5858f23ad3"
 
 [[package]]
 name = "percent-encoding"
@@ -704,7 +739,7 @@ checksum = "069bdb1e05adc7a8990dce9cc75370895fbe4e3d58b9b73bf1aee56359344a55"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.109",
 ]
 
 [[package]]
@@ -721,9 +756,9 @@ checksum = "8b870d8c151b6f2fb93e84a13146138f05d02ed11c7e7c54f8826aaaf7c9f184"
 
 [[package]]
 name = "proc-macro2"
-version = "1.0.49"
+version = "1.0.56"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "57a8eca9f9c4ffde41714334dee777596264c7825420f521abc92b5b5deb63a5"
+checksum = "2b63bdb0cd06f1f4dedf69b254734f9b45af66e4a031e42a7480257d9898b435"
 dependencies = [
  "unicode-ident",
 ]
@@ -742,18 +777,18 @@ dependencies = [
 
 [[package]]
 name = "quote"
-version = "1.0.23"
+version = "1.0.26"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8856d8364d252a14d474036ea1358d63c9e6965c8e5c1885c18f73d70bff9c7b"
+checksum = "4424af4bf778aae2051a77b60283332f386554255d722233d09fbfc7e30da2fc"
 dependencies = [
  "proc-macro2",
 ]
 
 [[package]]
 name = "redox_syscall"
-version = "0.2.16"
+version = "0.3.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fb5a58c1855b4b6819d59012155603f0b22ad30cad752600aadfcb695265519a"
+checksum = "567664f262709473930a4bf9e51bf2ebf3348f2e748ccc50dea20646858f8f29"
 dependencies = [
  "bitflags",
 ]
@@ -776,60 +811,65 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a5996294f19bd3aae0453a862ad728f60e6600695733dd5df01da90c54363a3c"
 
 [[package]]
-name = "remove_dir_all"
-version = "0.5.3"
+name = "rustix"
+version = "0.37.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "3acd125665422973a33ac9d3dd2df85edad0f4ae9b00dafb1a05e43a9f5ef8e7"
+checksum = "a0661814f891c57c930a610266415528da53c4933e6dea5fb350cbfe048a9ece"
 dependencies = [
- "winapi",
+ "bitflags",
+ "errno",
+ "io-lifetimes",
+ "libc",
+ "linux-raw-sys",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
 name = "ryu"
-version = "1.0.12"
+version = "1.0.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b4b9743ed687d4b4bcedf9ff5eaa7398495ae14e61cba0a295704edbc7decde"
+checksum = "f91339c0467de62360649f8d3e185ca8de4224ff281f66000de5eb2a77a79041"
 
 [[package]]
 name = "scratch"
-version = "1.0.3"
+version = "1.0.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ddccb15bcce173023b3fedd9436f882a0739b8dfb45e4f6b6002bee5929f61b2"
+checksum = "1792db035ce95be60c3f8853017b3999209281c24e2ba5bc8e59bf97a0c590c1"
 
 [[package]]
 name = "semver"
-version = "1.0.16"
+version = "1.0.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "58bc9567378fc7690d6b2addae4e60ac2eeea07becb2c64b9f218b53865cba2a"
+checksum = "bebd363326d05ec3e2f532ab7660680f3b02130d780c299bca73469d521bc0ed"
 dependencies = [
  "serde",
 ]
 
 [[package]]
 name = "serde"
-version = "1.0.152"
+version = "1.0.160"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bb7d1f0d3021d347a83e556fc4683dea2ea09d87bccdf88ff5c12545d89d5efb"
+checksum = "bb2f3770c8bce3bcda7e149193a069a0f4365bda1fa5cd88e03bca26afc1216c"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.152"
+version = "1.0.160"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "af487d118eecd09402d70a5d72551860e788df87b464af30e5ea6a38c75c541e"
+checksum = "291a097c63d8497e00160b166a967a4a79c64f3facdd01cbd7502231688d77df"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.15",
 ]
 
 [[package]]
 name = "serde_json"
-version = "1.0.91"
+version = "1.0.96"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "877c235533714907a8c2464236f5c4b2a17262ef1bd71f38f35ea592c8da6883"
+checksum = "057d394a50403bcac12672b2b18fb387ab6d289d957dab67dd201875391e52f1"
 dependencies = [
  "itoa",
  "ryu",
@@ -838,13 +878,13 @@ dependencies = [
 
 [[package]]
 name = "serde_repr"
-version = "0.1.10"
+version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "9a5ec9fa74a20ebbe5d9ac23dac1fc96ba0ecfe9f50f2843b52e537b10fbcb4e"
+checksum = "bcec881020c684085e55a25f7fd888954d56609ef363479dc5a1305eb0d40cab"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.15",
 ]
 
 [[package]]
@@ -870,9 +910,9 @@ dependencies = [
 
 [[package]]
 name = "serde_with"
-version = "2.2.0"
+version = "2.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "30d904179146de381af4c93d3af6ca4984b3152db687dacb9c3c35e86f39809c"
+checksum = "07ff71d2c147a7b57362cead5e22f772cd52f6ab31cfcd9edcd7f6aeb2a0afbe"
 dependencies = [
  "base64 0.13.1",
  "chrono",
@@ -885,18 +925,18 @@ dependencies = [
 
 [[package]]
 name = "slab"
-version = "0.4.7"
+version = "0.4.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4614a76b2a8be0058caa9dbbaf66d988527d86d003c11a94fbd335d7661edcef"
+checksum = "6528351c9bc8ab22353f9d776db39a20288e8d6c37ef8cfe3317cf875eecfc2d"
 dependencies = [
  "autocfg",
 ]
 
 [[package]]
 name = "socket2"
-version = "0.4.7"
+version = "0.4.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "02e2d2db9033d13a1567121ddd7a095ee144db4e1ca1b1bda3419bc0da294ebd"
+checksum = "64a4a911eed85daf18834cfaa86a79b7d266ff93ff5ba14005426219480ed662"
 dependencies = [
  "libc",
  "winapi",
@@ -904,9 +944,20 @@ dependencies = [
 
 [[package]]
 name = "syn"
-version = "1.0.107"
+version = "1.0.109"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "syn"
+version = "2.0.15"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1f4064b5b16e03ae50984a5a8ed5d4f8803e6bc1fd170a3cda91a1be4b18e3f5"
+checksum = "a34fcf3e8b60f57e6a14301a2e916d323af98b0ea63c599441eec8558660c822"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -915,52 +966,51 @@ dependencies = [
 
 [[package]]
 name = "tempfile"
-version = "3.3.0"
+version = "3.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5cdb1ef4eaeeaddc8fbd371e5017057064af0911902ef36b39801f67cc6d79e4"
+checksum = "b9fbec84f381d5795b08656e4912bec604d162bff9291d6189a78f4c8ab87998"
 dependencies = [
  "cfg-if",
  "fastrand",
- "libc",
  "redox_syscall",
- "remove_dir_all",
- "winapi",
+ "rustix",
+ "windows-sys 0.45.0",
 ]
 
 [[package]]
 name = "termcolor"
-version = "1.1.3"
+version = "1.2.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bab24d30b911b2376f3a13cc2cd443142f0c81dda04c118693e35b3835757755"
+checksum = "be55cf8942feac5c765c2c993422806843c9a9a45d4d5c407ad6dd2ea95eb9b6"
 dependencies = [
  "winapi-util",
 ]
 
 [[package]]
 name = "thiserror"
-version = "1.0.38"
+version = "1.0.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6a9cd18aa97d5c45c6603caea1da6628790b37f7a34b6ca89522331c5180fed0"
+checksum = "978c9a314bd8dc99be594bc3c175faaa9794be04a5a5e153caba6915336cebac"
 dependencies = [
  "thiserror-impl",
 ]
 
 [[package]]
 name = "thiserror-impl"
-version = "1.0.38"
+version = "1.0.40"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1fb327af4685e4d03fa8cbcf1716380da910eeb2bb8be417e7f9fd3fb164f36f"
+checksum = "f9456a42c5b0d803c8cd86e73dd7cc9edd429499f37a3550d286d5e86720569f"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 2.0.15",
 ]
 
 [[package]]
 name = "time"
-version = "0.3.17"
+version = "0.3.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a561bf4617eebd33bca6434b988f39ed798e527f51a1e797d0ee4f61c0a38376"
+checksum = "cd0cbfecb4d19b5ea75bb31ad904eb5b9fa13f21079c3b92017ebdf4999a5890"
 dependencies = [
  "itoa",
  "serde",
@@ -976,9 +1026,9 @@ checksum = "2e153e1f1acaef8acc537e68b44906d2db6436e2b35ac2c6b42640fff91f00fd"
 
 [[package]]
 name = "time-macros"
-version = "0.2.6"
+version = "0.2.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d967f99f534ca7e495c575c62638eebc2898a8c84c119b89e250477bc4ba16b2"
+checksum = "fd80a657e71da814b8e5d60d3374fc6d35045062245d80224748ae522dd76f36"
 dependencies = [
  "time-core",
 ]
@@ -994,32 +1044,31 @@ dependencies = [
 
 [[package]]
 name = "tinyvec_macros"
-version = "0.1.0"
+version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
+checksum = "1f3ccbac311fea05f86f61904b462b55fb3df8837a366dfc601a0161d0532f20"
 
 [[package]]
 name = "tokio"
-version = "1.25.0"
+version = "1.28.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "c8e00990ebabbe4c14c08aca901caed183ecd5c09562a12c824bb53d3c3fd3af"
+checksum = "c3c786bf8134e5a3a166db9b29ab8f48134739014a3eca7bc6bfa95d673b136f"
 dependencies = [
  "autocfg",
  "bytes",
  "libc",
- "memchr",
  "mio",
  "num_cpus",
  "pin-project-lite",
  "socket2",
- "windows-sys",
+ "windows-sys 0.48.0",
 ]
 
 [[package]]
 name = "tokio-stream"
-version = "0.1.11"
+version = "0.1.14"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d660770404473ccd7bc9f8b28494a811bc18542b915c0855c51e8f419d5223ce"
+checksum = "397c988d37662c7dda6d2208364a706264bf3d6138b11d436cbac0ad38832842"
 dependencies = [
  "futures-core",
  "pin-project-lite",
@@ -1028,9 +1077,9 @@ dependencies = [
 
 [[package]]
 name = "tokio-util"
-version = "0.7.4"
+version = "0.7.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "0bb2e075f03b3d66d8d8785356224ba688d2906a371015e225beeb65ca92c740"
+checksum = "806fe8c2c87eccc8b3267cbae29ed3ab2d0bd37fca70ab622e46aaa9375ddb7d"
 dependencies = [
  "bytes",
  "futures-core",
@@ -1042,9 +1091,9 @@ dependencies = [
 
 [[package]]
 name = "toml"
-version = "0.7.2"
+version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f7afcae9e3f0fe2c370fd4657108972cbb2fa9db1b9f84849cefd80741b01cb6"
+checksum = "b403acf6f2bb0859c93c7f0d967cb4a75a7ac552100f9322faf64dc047669b21"
 dependencies = [
  "serde",
  "serde_spanned",
@@ -1063,15 +1112,15 @@ dependencies = [
 
 [[package]]
 name = "toml_edit"
-version = "0.19.3"
+version = "0.19.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5e6a7712b49e1775fb9a7b998de6635b299237f48b404dde71704f2e0e7f37e5"
+checksum = "239410c8609e8125456927e6707163a3b1fdb40561e4b803bc041f466ccfdc13"
 dependencies = [
  "indexmap",
- "nom8",
  "serde",
  "serde_spanned",
  "toml_datetime",
+ "winnow",
 ]
 
 [[package]]
@@ -1082,11 +1131,10 @@ checksum = "b6bc1c9ce2b5135ac7f93c72918fc37feb872bdc6a5533a8b85eb4b86bfdae52"
 
 [[package]]
 name = "tracing"
-version = "0.1.37"
+version = "0.1.38"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8ce8c33a8d48bd45d624a6e523445fd21ec13d3653cd51f681abf67418f54eb8"
+checksum = "cf9cf6a813d3f40c88b0b6b6f29a5c95c6cdbf97c1f9cc53fb820200f5ad814d"
 dependencies = [
- "cfg-if",
  "pin-project-lite",
  "tracing-core",
 ]
@@ -1102,21 +1150,21 @@ dependencies = [
 
 [[package]]
 name = "try-lock"
-version = "0.2.3"
+version = "0.2.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "59547bce71d9c38b83d9c0e92b6066c4253371f15005def0c30d9657f50c7642"
+checksum = "3528ecfd12c466c6f163363caf2d02a71161dd5e1cc6ae7b34207ea2d42d81ed"
 
 [[package]]
 name = "unicode-bidi"
-version = "0.3.8"
+version = "0.3.13"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "099b7128301d285f79ddd55b9a83d5e6b9e97c92e0ea0daebee7263e932de992"
+checksum = "92888ba5573ff080736b3648696b70cafad7d250551175acbaa4e0385b3e1460"
 
 [[package]]
 name = "unicode-ident"
-version = "1.0.6"
+version = "1.0.8"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84a22b9f218b40614adcb3f4ff08b703773ad44fa9423e4e0d346d5db86e4ebc"
+checksum = "e5464a87b239f13a63a501f2701565754bae92d243d4bb7eb12f6d57d2269bf4"
 
 [[package]]
 name = "unicode-normalization"
@@ -1181,7 +1229,7 @@ dependencies = [
  "once_cell",
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.109",
  "wasm-bindgen-shared",
 ]
 
@@ -1203,7 +1251,7 @@ checksum = "2aff81306fcac3c7515ad4e177f521b5c9a15f2b08f4e32d823066102f35a5f6"
 dependencies = [
  "proc-macro2",
  "quote",
- "syn",
+ "syn 1.0.109",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
 ]
@@ -1216,9 +1264,9 @@ checksum = "0046fef7e28c3804e5e38bfa31ea2a0f73905319b677e57ebe37e49358989b5d"
 
 [[package]]
 name = "which"
-version = "4.3.0"
+version = "4.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "1c831fbbee9e129a8cf93e7747a82da9d95ba8e16621cae60ec2cdc849bacb7b"
+checksum = "2441c784c52b289a054b7201fc93253e288f094e2f4be9058343127c4226a269"
 dependencies = [
  "either",
  "libc",
@@ -1256,59 +1304,152 @@ version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
 
+[[package]]
+name = "windows"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e686886bc078bc1b0b600cac0147aadb815089b6e4da64016cbd754b6342700f"
+dependencies = [
+ "windows-targets 0.48.0",
+]
+
+[[package]]
+name = "windows-sys"
+version = "0.45.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "75283be5efb2831d37ea142365f009c02ec203cd29a3ebecbc093d52315b66d0"
+dependencies = [
+ "windows-targets 0.42.2",
+]
+
 [[package]]
 name = "windows-sys"
-version = "0.42.0"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "677d2418bec65e3338edb076e806bc1ec15693c5d0104683f2efe857f61056a9"
+dependencies = [
+ "windows-targets 0.48.0",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8e5180c00cd44c9b1c88adb3693291f1cd93605ded80c250a75d472756b4d071"
+dependencies = [
+ "windows_aarch64_gnullvm 0.42.2",
+ "windows_aarch64_msvc 0.42.2",
+ "windows_i686_gnu 0.42.2",
+ "windows_i686_msvc 0.42.2",
+ "windows_x86_64_gnu 0.42.2",
+ "windows_x86_64_gnullvm 0.42.2",
+ "windows_x86_64_msvc 0.42.2",
+]
+
+[[package]]
+name = "windows-targets"
+version = "0.48.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5a3e1820f08b8513f676f7ab6c1f99ff312fb97b553d30ff4dd86f9f15728aa7"
+checksum = "7b1eb6f0cd7c80c79759c929114ef071b87354ce476d9d94271031c0497adfd5"
 dependencies = [
- "windows_aarch64_gnullvm",
- "windows_aarch64_msvc",
- "windows_i686_gnu",
- "windows_i686_msvc",
- "windows_x86_64_gnu",
- "windows_x86_64_gnullvm",
- "windows_x86_64_msvc",
+ "windows_aarch64_gnullvm 0.48.0",
+ "windows_aarch64_msvc 0.48.0",
+ "windows_i686_gnu 0.48.0",
+ "windows_i686_msvc 0.48.0",
+ "windows_x86_64_gnu 0.48.0",
+ "windows_x86_64_gnullvm 0.48.0",
+ "windows_x86_64_msvc 0.48.0",
 ]
 
 [[package]]
 name = "windows_aarch64_gnullvm"
-version = "0.42.0"
+version = "0.42.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "597a5118570b68bc08d8d59125332c54f1ba9d9adeedeef5b99b02ba2b0698f8"
+
+[[package]]
+name = "windows_aarch64_gnullvm"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "91ae572e1b79dba883e0d315474df7305d12f569b400fcf90581b06062f7e1bc"
+
+[[package]]
+name = "windows_aarch64_msvc"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "41d2aa71f6f0cbe00ae5167d90ef3cfe66527d6f613ca78ac8024c3ccab9a19e"
+checksum = "e08e8864a60f06ef0d0ff4ba04124db8b0fb3be5776a5cd47641e942e58c4d43"
 
 [[package]]
 name = "windows_aarch64_msvc"
-version = "0.42.0"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b2ef27e0d7bdfcfc7b868b317c1d32c641a6fe4629c171b8928c7b08d98d7cf3"
+
+[[package]]
+name = "windows_i686_gnu"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "dd0f252f5a35cac83d6311b2e795981f5ee6e67eb1f9a7f64eb4500fbc4dcdb4"
+checksum = "c61d927d8da41da96a81f029489353e68739737d3beca43145c8afec9a31a84f"
 
 [[package]]
 name = "windows_i686_gnu"
-version = "0.42.0"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "622a1962a7db830d6fd0a69683c80a18fda201879f0f447f065a3b7467daa241"
+
+[[package]]
+name = "windows_i686_msvc"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fbeae19f6716841636c28d695375df17562ca208b2b7d0dc47635a50ae6c5de7"
+checksum = "44d840b6ec649f480a41c8d80f9c65108b92d89345dd94027bfe06ac444d1060"
 
 [[package]]
 name = "windows_i686_msvc"
-version = "0.42.0"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4542c6e364ce21bf45d69fdd2a8e455fa38d316158cfd43b3ac1c5b1b19f8e00"
+
+[[package]]
+name = "windows_x86_64_gnu"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "84c12f65daa39dd2babe6e442988fc329d6243fdce47d7d2d155b8d874862246"
+checksum = "8de912b8b8feb55c064867cf047dda097f92d51efad5b491dfb98f6bbb70cb36"
 
 [[package]]
 name = "windows_x86_64_gnu"
-version = "0.42.0"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ca2b8a661f7628cbd23440e50b05d705db3686f894fc9580820623656af974b1"
+
+[[package]]
+name = "windows_x86_64_gnullvm"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bf7b1b21b5362cbc318f686150e5bcea75ecedc74dd157d874d754a2ca44b0ed"
+checksum = "26d41b46a36d453748aedef1486d5c7a85db22e56aff34643984ea85514e94a3"
 
 [[package]]
 name = "windows_x86_64_gnullvm"
-version = "0.42.0"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7896dbc1f41e08872e9d5e8f8baa8fdd2677f29468c4e156210174edc7f7b953"
+
+[[package]]
+name = "windows_x86_64_msvc"
+version = "0.42.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "09d525d2ba30eeb3297665bd434a54297e4170c7f1a44cad4ef58095b4cd2028"
+checksum = "9aec5da331524158c6d1a4ac0ab1541149c0b9505fde06423b02f5ef0106b9f0"
 
 [[package]]
 name = "windows_x86_64_msvc"
-version = "0.42.0"
+version = "0.48.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1a515f5799fe4961cb532f983ce2b23082366b898e52ffbce459c86f67c8378a"
+
+[[package]]
+name = "winnow"
+version = "0.4.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f40009d85759725a34da6d89a94e63d7bdc50a862acf0dbc7c8e488f1edcb6f5"
+checksum = "ae8970b36c66498d8ff1d66685dc86b91b29db0c7739899012f63a63814b4b28"
+dependencies = [
+ "memchr",
+]
diff --git a/Cargo.toml b/Cargo.toml
index 6550ff3..8d4f137 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -8,10 +8,10 @@ rust-version = "1.66"
 
 [dependencies]
 indoc = "2"
-libcnb = "0.11"
-libherokubuildpack = { version = "0.11", default-features = false, features = ["error", "log"] }
+libcnb = "0.12"
+libherokubuildpack = { version = "0.12", default-features = false, features = ["error", "log"] }
 linked-hash-map = "0.5"
 regex = "1"
 
 [dev-dependencies]
-libcnb-test = "0.11"
+libcnb-test = "0.12"
diff --git a/buildpack.toml b/buildpack.toml
index b4eacf7..9fc4be7 100644
--- a/buildpack.toml
+++ b/buildpack.toml
@@ -1,4 +1,4 @@
-api = "0.8"
+api = "0.9"
 
 [buildpack]
 id = "heroku/procfile"
diff --git a/src/launch.rs b/src/launch.rs
index a2ac59c..97042b4 100644
--- a/src/launch.rs
+++ b/src/launch.rs
@@ -16,9 +16,8 @@ impl TryFrom<Procfile> for Launch {
             launch.processes.push(Process {
                 r#type: ProcessType::from_str(&key)
                     .map_err(ProcfileConversionError::InvalidProcessType)?,
-                command: value,
-                args: Vec::<String>::new(),
-                direct: false,
+                command: vec![String::from("bash")],
+                args: vec![String::from("-c"), format!("exec {value}")],
                 default: key == "web",
                 working_directory: WorkingDirectory::App,
             });
@@ -56,9 +55,8 @@ mod test {
             launch.processes,
             vec![Process {
                 r#type: process_type!("web"),
-                command: String::from("web_command"),
-                args: vec![],
-                direct: false,
+                command: vec![String::from("bash")],
+                args: vec![String::from("-c"), format!("exec web_command")],
                 default: true,
                 working_directory: WorkingDirectory::App,
             }]
@@ -76,9 +74,8 @@ mod test {
             launch.processes,
             vec![Process {
                 r#type: process_type!("xxx"),
-                command: String::from("xxx_command"),
-                args: vec![],
-                direct: false,
+                command: vec![String::from("bash")],
+                args: vec![String::from("-c"), format!("exec xxx_command")],
                 default: true,
                 working_directory: WorkingDirectory::App,
             }]
@@ -98,17 +95,15 @@ mod test {
             vec![
                 Process {
                     r#type: process_type!("web"),
-                    command: String::from("web_command"),
-                    args: vec![],
-                    direct: false,
+                    command: vec![String::from("bash")],
+                    args: vec![String::from("-c"), format!("exec web_command")],
                     default: true,
                     working_directory: WorkingDirectory::App,
                 },
                 Process {
                     r#type: process_type!("foo"),
-                    command: String::from("foo_command"),
-                    args: vec![],
-                    direct: false,
+                    command: vec![String::from("bash")],
+                    args: vec![String::from("-c"), format!("exec foo_command")],
                     default: false,
                     working_directory: WorkingDirectory::App,
                 }
@@ -129,17 +124,15 @@ mod test {
             vec![
                 Process {
                     r#type: process_type!("foo"),
-                    command: String::from("foo_command"),
-                    args: vec![],
-                    direct: false,
+                    command: vec![String::from("bash")],
+                    args: vec![String::from("-c"), format!("exec foo_command")],
                     default: false,
                     working_directory: WorkingDirectory::App,
                 },
                 Process {
                     r#type: process_type!("bar"),
-                    command: String::from("bar_command"),
-                    args: vec![],
-                    direct: false,
+                    command: vec![String::from("bash")],
+                    args: vec![String::from("-c"), format!("exec bar_command")],
                     default: false,
                     working_directory: WorkingDirectory::App,
                 }
@@ -169,25 +162,22 @@ mod test {
             vec![
                 Process {
                     r#type: process_type!("aaa"),
-                    command: String::from("aaa_command"),
-                    args: vec![],
-                    direct: false,
+                    command: vec![String::from("bash")],
+                    args: vec![String::from("-c"), format!("exec aaa_command")],
                     default: false,
                     working_directory: WorkingDirectory::App,
                 },
                 Process {
                     r#type: process_type!("ccc"),
-                    command: String::from("ccc_command"),
-                    args: vec![],
-                    direct: false,
+                    command: vec![String::from("bash")],
+                    args: vec![String::from("-c"), format!("exec ccc_command")],
                     default: false,
                     working_directory: WorkingDirectory::App,
                 },
                 Process {
                     r#type: process_type!("bbb"),
-                    command: String::from("bbb_command"),
-                    args: vec![],
-                    direct: false,
+                    command: vec![String::from("bash")],
+                    args: vec![String::from("-c"), format!("exec bbb_command")],
                     default: false,
                     working_directory: WorkingDirectory::App,
                 },

From 2605a122f66b2eea29ae7b040e0ddca98b3fe054 Mon Sep 17 00:00:00 2001
From: Ed Morley <501702+edmorley@users.noreply.github.com>
Date: Fri, 28 Apr 2023 16:25:44 +0100
Subject: [PATCH 2/4] Add a complex procfile command integration test

Which demonstrates the issues with prefixing the command with `exec`.
---
 .../complex_command_procfile/Procfile         |  2 +
 tests/integration_test.rs                     | 38 +++++++++++++------
 2 files changed, 28 insertions(+), 12 deletions(-)
 create mode 100644 tests/fixtures/complex_command_procfile/Procfile

diff --git a/tests/fixtures/complex_command_procfile/Procfile b/tests/fixtures/complex_command_procfile/Procfile
new file mode 100644
index 0000000..d35755b
--- /dev/null
+++ b/tests/fixtures/complex_command_procfile/Procfile
@@ -0,0 +1,2 @@
+# Tests use of compound bash commands, both quote styles, and variable interpolation.
+web: echo 'this is the web process!' && echo "PORT is set to: ${PORT}"
diff --git a/tests/integration_test.rs b/tests/integration_test.rs
index 611f466..0f66035 100644
--- a/tests/integration_test.rs
+++ b/tests/integration_test.rs
@@ -9,14 +9,13 @@
 use indoc::indoc;
 use libcnb_test::{assert_contains, BuildConfig, ContainerConfig, PackResult, TestRunner};
 
+const BUILDER_NAME: &str = "heroku/builder:22";
+
 #[test]
 #[ignore = "integration test"]
 fn test_web_and_worker_procfile() {
     TestRunner::default().build(
-        BuildConfig::new(
-            "heroku/builder:22",
-            "tests/fixtures/web_and_worker_procfile",
-        ),
+        BuildConfig::new(BUILDER_NAME, "tests/fixtures/web_and_worker_procfile"),
         |context| {
             assert_contains!(
                 context.pack_stdout,
@@ -46,7 +45,7 @@ fn test_web_and_worker_procfile() {
 #[ignore = "integration test"]
 fn test_worker_only_procfile() {
     TestRunner::default().build(
-        BuildConfig::new("heroku/builder:22", "tests/fixtures/worker_only_procfile"),
+        BuildConfig::new(BUILDER_NAME, "tests/fixtures/worker_only_procfile"),
         |context| {
             assert_contains!(
                 context.pack_stdout,
@@ -71,10 +70,7 @@ fn test_worker_only_procfile() {
 #[ignore = "integration test"]
 fn test_multiple_non_web_procfile() {
     TestRunner::default().build(
-        BuildConfig::new(
-            "heroku/builder:22",
-            "tests/fixtures/multiple_non_web_procfile",
-        ),
+        BuildConfig::new(BUILDER_NAME, "tests/fixtures/multiple_non_web_procfile"),
         |context| {
             assert_contains!(
                 context.pack_stdout,
@@ -111,13 +107,31 @@ fn test_multiple_non_web_procfile() {
     );
 }
 
+#[test]
+#[ignore = "integration test"]
+// Tests use of compound bash commands, both quote styles, and variable interpolation.
+fn test_complex_command_procfile() {
+    TestRunner::default().build(
+        BuildConfig::new(BUILDER_NAME, "tests/fixtures/complex_command_procfile"),
+        |context| {
+            context.start_container(ContainerConfig::new().env("PORT", "12345"), |container| {
+                let log_output = container.logs_wait();
+                assert_eq!(
+                    log_output.stdout,
+                    "this is the web process!\nPORT is set to: 12345\n"
+                );
+            });
+        },
+    );
+}
+
 #[test]
 #[ignore = "integration test"]
 // Tests a Procfile that happens to not be valid YAML, but is still valid according
 // to the supported Procfile syntax.
 fn test_not_yaml_procfile() {
     TestRunner::default().build(
-        BuildConfig::new("heroku/builder:22", "tests/fixtures/not_yaml_procfile"),
+        BuildConfig::new(BUILDER_NAME, "tests/fixtures/not_yaml_procfile"),
         |context| {
             assert_contains!(
                 context.pack_stdout,
@@ -139,7 +153,7 @@ fn test_not_yaml_procfile() {
 #[ignore = "integration test"]
 fn test_empty_procfile() {
     TestRunner::default().build(
-        BuildConfig::new("heroku/builder:22", "tests/fixtures/empty_procfile"),
+        BuildConfig::new(BUILDER_NAME, "tests/fixtures/empty_procfile"),
         |context| {
             assert_contains!(
                 context.pack_stdout,
@@ -157,7 +171,7 @@ fn test_empty_procfile() {
 #[ignore = "integration test"]
 fn test_missing_procfile() {
     TestRunner::default().build(
-        BuildConfig::new("heroku/builder:22", "tests/fixtures/missing_procfile")
+        BuildConfig::new(BUILDER_NAME, "tests/fixtures/missing_procfile")
             .expected_pack_result(PackResult::Failure),
         |context| {
             assert_contains!(

From 73aaa578215b0c51b95f01737a219903ffdd78b3 Mon Sep 17 00:00:00 2001
From: Ed Morley <501702+edmorley@users.noreply.github.com>
Date: Fri, 28 Apr 2023 16:27:08 +0100
Subject: [PATCH 3/4] Rename Launch's TryFrom args to avoid shadowing of
 variable names

---
 src/launch.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/launch.rs b/src/launch.rs
index 97042b4..2109685 100644
--- a/src/launch.rs
+++ b/src/launch.rs
@@ -5,14 +5,14 @@ use std::str::FromStr;
 impl TryFrom<Procfile> for Launch {
     type Error = ProcfileConversionError;
 
-    fn try_from(value: Procfile) -> Result<Self, Self::Error> {
+    fn try_from(procfile: Procfile) -> Result<Self, Self::Error> {
         let mut launch = Launch {
             labels: vec![],
             processes: vec![],
             slices: vec![],
         };
 
-        for (key, value) in value.processes {
+        for (key, value) in procfile.processes {
             launch.processes.push(Process {
                 r#type: ProcessType::from_str(&key)
                     .map_err(ProcfileConversionError::InvalidProcessType)?,

From 382d96ea7e6a4714922567a73f9b7a4d96bbfbef Mon Sep 17 00:00:00 2001
From: Ed Morley <501702+edmorley@users.noreply.github.com>
Date: Fri, 28 Apr 2023 16:29:47 +0100
Subject: [PATCH 4/4] Don't prefix the command with `exec`

Since:
- for single command procfile entires, using `bash -c <command>` already implicitly uses exec (making `exec` redundant)
- for more complex compound command procfile entries exec should not be used otherwise later commands won't run (eg only `foo` would get run in `exec foo && bar`)
---
 src/launch.rs | 20 ++++++++++----------
 1 file changed, 10 insertions(+), 10 deletions(-)

diff --git a/src/launch.rs b/src/launch.rs
index 2109685..d549d77 100644
--- a/src/launch.rs
+++ b/src/launch.rs
@@ -17,7 +17,7 @@ impl TryFrom<Procfile> for Launch {
                 r#type: ProcessType::from_str(&key)
                     .map_err(ProcfileConversionError::InvalidProcessType)?,
                 command: vec![String::from("bash")],
-                args: vec![String::from("-c"), format!("exec {value}")],
+                args: vec![String::from("-c"), value],
                 default: key == "web",
                 working_directory: WorkingDirectory::App,
             });
@@ -56,7 +56,7 @@ mod test {
             vec![Process {
                 r#type: process_type!("web"),
                 command: vec![String::from("bash")],
-                args: vec![String::from("-c"), format!("exec web_command")],
+                args: vec![String::from("-c"), String::from("web_command")],
                 default: true,
                 working_directory: WorkingDirectory::App,
             }]
@@ -75,7 +75,7 @@ mod test {
             vec![Process {
                 r#type: process_type!("xxx"),
                 command: vec![String::from("bash")],
-                args: vec![String::from("-c"), format!("exec xxx_command")],
+                args: vec![String::from("-c"), String::from("xxx_command")],
                 default: true,
                 working_directory: WorkingDirectory::App,
             }]
@@ -96,14 +96,14 @@ mod test {
                 Process {
                     r#type: process_type!("web"),
                     command: vec![String::from("bash")],
-                    args: vec![String::from("-c"), format!("exec web_command")],
+                    args: vec![String::from("-c"), String::from("web_command")],
                     default: true,
                     working_directory: WorkingDirectory::App,
                 },
                 Process {
                     r#type: process_type!("foo"),
                     command: vec![String::from("bash")],
-                    args: vec![String::from("-c"), format!("exec foo_command")],
+                    args: vec![String::from("-c"), String::from("foo_command")],
                     default: false,
                     working_directory: WorkingDirectory::App,
                 }
@@ -125,14 +125,14 @@ mod test {
                 Process {
                     r#type: process_type!("foo"),
                     command: vec![String::from("bash")],
-                    args: vec![String::from("-c"), format!("exec foo_command")],
+                    args: vec![String::from("-c"), String::from("foo_command")],
                     default: false,
                     working_directory: WorkingDirectory::App,
                 },
                 Process {
                     r#type: process_type!("bar"),
                     command: vec![String::from("bash")],
-                    args: vec![String::from("-c"), format!("exec bar_command")],
+                    args: vec![String::from("-c"), String::from("bar_command")],
                     default: false,
                     working_directory: WorkingDirectory::App,
                 }
@@ -163,21 +163,21 @@ mod test {
                 Process {
                     r#type: process_type!("aaa"),
                     command: vec![String::from("bash")],
-                    args: vec![String::from("-c"), format!("exec aaa_command")],
+                    args: vec![String::from("-c"), String::from("aaa_command")],
                     default: false,
                     working_directory: WorkingDirectory::App,
                 },
                 Process {
                     r#type: process_type!("ccc"),
                     command: vec![String::from("bash")],
-                    args: vec![String::from("-c"), format!("exec ccc_command")],
+                    args: vec![String::from("-c"), String::from("ccc_command")],
                     default: false,
                     working_directory: WorkingDirectory::App,
                 },
                 Process {
                     r#type: process_type!("bbb"),
                     command: vec![String::from("bash")],
-                    args: vec![String::from("-c"), format!("exec bbb_command")],
+                    args: vec![String::from("-c"), String::from("bbb_command")],
                     default: false,
                     working_directory: WorkingDirectory::App,
                 },