From d80253cbacbb6229247b4ee5323d61470b5df97d Mon Sep 17 00:00:00 2001
From: Josh W Lewis <josh.lewis@salesforce.com>
Date: Tue, 3 Sep 2024 07:26:52 -0500
Subject: [PATCH] Add deprecation notices for dep, gb, glide, godep, govendor
 (#569)
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* Add deprecation notices for dep, gb, glide, godep, govendor

Signed-off-by: Josh W Lewis <josh.w.lewis@gmail.com>

* Add test assertions for deprecation messages

* Add changelog entry for tool deprecation

* Drop extra newline

Co-authored-by: David Zülke <dzuelke@salesforce.com>

* Add extra newline

Co-authored-by: David Zülke <dzuelke@salesforce.com>

---------

Signed-off-by: Josh W Lewis <josh.w.lewis@gmail.com>
Co-authored-by: David Zülke <dzuelke@salesforce.com>
---
 CHANGELOG.md |  4 ++++
 bin/compile  | 12 ++++++++++++
 test/run.sh  | 10 ++++++++++
 3 files changed, 26 insertions(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index afb24d64..d0a7c765 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,10 @@
 
 ## [Unreleased]
 
+* Deprecate support for unmaintained dependency managers: `dep`, `gb`, `glide`, `godep` and `govendor`.  
+  Support for these dependency managers will be removed on March 1, 2025.
+  Apps using these dependency managers should migrate to Go modules as soon as possible. 
+  Learn more about using Go modules on Heroku [here](https://devcenter.heroku.com/articles/go-modules).
 * Add support for wwwauth[] git credential arguments
 
 ## [v195] - 2024-08-13
diff --git a/bin/compile b/bin/compile
index a90efeb1..38b7185d 100755
--- a/bin/compile
+++ b/bin/compile
@@ -352,6 +352,13 @@ warnPackageSpecOverride() {
     fi
 }
 
+warnDeprecatedTool() {
+    local tool=$1
+    warn "This application is using ${tool}, but ${tool} is no longer maintained."
+    warn "${tool} support on Heroku is deprecated and will be removed on March 1, 2025."
+    warn "Please migrate to Go modules. Learn more about Go modules on Heroku here: https://devcenter.heroku.com/articles/go-modules."
+}
+
 # Sets up GOPATH (and posibly other GO* env vars) and returns the location of
 # the source code as $src. The output of this function is meant to be eval'd'
 setupGOPATH() {
@@ -708,6 +715,11 @@ if needConcurrency ${ver}; then
     cp $buildpack/vendor/concurrency.sh $build/.profile.d/
 fi
 
+# dep, gb, glide, godep, govendor are all unmaintained.
+if [ "${TOOL}" != "gomodules" ]; then
+    warnDeprecatedTool "$TOOL"
+fi
+
 t="${build}/.heroku/go"
 mkdir -p "${t}"
 t="${t}/.meta"
diff --git a/test/run.sh b/test/run.sh
index 7c2f2abc..0f780a6d 100755
--- a/test/run.sh
+++ b/test/run.sh
@@ -635,6 +635,8 @@ testDepGoVersion() {
   assertCaptured "Fetching any unsaved dependencies (dep ensure)"
   assertCaptured "Running: go install -v -tags heroku ."
   assertCaptured "github.com/heroku/fixture"
+  assertCaptured "This application is using dep, but dep is no longer maintained."
+
   assertCapturedSuccess
   assertCompiledBinaryExists
 }
@@ -867,6 +869,8 @@ testGodepBasicGo14WithGOVERSIONOverride() {
   compile
   assertCaptured "Installing go1.6"
   assertCaptured "Using \$GOVERSION override."
+  assertCaptured "This application is using godep, but godep is no longer maintained."
+
   assertCapturedSuccess
   assertCompiledBinaryExists
   assertBuildDirFileDoesNotExist ".profile.d/concurrency.sh"
@@ -975,6 +979,8 @@ testGlideBasic() {
   assertCaptured "Fetching any unsaved dependencies (glide install)"
   assertCaptured "Running: go install -v -tags heroku ."
   assertCaptured "github.com/heroku/fixture"
+  assertCaptured "This application is using glide, but glide is no longer maintained."
+
   assertCapturedSuccess
   assertCompiledBinaryExists
 }
@@ -1234,6 +1240,8 @@ testGBBasic() {
   assertCaptured "Running: gb build -tags heroku"
   assertCaptured "cmd/fixture"
   assertCaptured "Post Compile Cleanup"
+  assertCaptured "This application is using gb, but gb is no longer maintained."
+
   assertCapturedSuccess
   assertCompiledBinaryExists
 }
@@ -1373,6 +1381,8 @@ testGovendorBasic() {
   assertCaptured "Running: go install -v -tags heroku ."
   assertCaptured "Installing package '.' (default)"
   assertCaptured "github.com/heroku/fixture"
+  assertCaptured "This application is using govendor, but govendor is no longer maintained."
+  
   assertCapturedSuccess
   assertCompiledBinaryExists
 }