From 23bb17a76f14b01118e0d384cdd041d04be2cf14 Mon Sep 17 00:00:00 2001
From: Andy Li <1450947+andy1li@users.noreply.github.com>
Date: Thu, 18 Dec 2025 13:27:18 +0900
Subject: [PATCH] CC-2075: Update Gleam to 1.13

---
 compiled_starters/gleam/README.md            |  2 +-
 compiled_starters/gleam/codecrafters.yml     |  4 ++--
 dockerfiles/gleam-1.13.Dockerfile            | 17 +++++++++++++++++
 solutions/gleam/01-at4/code/README.md        |  2 +-
 solutions/gleam/01-at4/code/codecrafters.yml |  4 ++--
 starter_templates/gleam/config.yml           |  2 +-
 6 files changed, 24 insertions(+), 7 deletions(-)
 create mode 100644 dockerfiles/gleam-1.13.Dockerfile

diff --git a/compiled_starters/gleam/README.md b/compiled_starters/gleam/README.md
index 112932f..0e95d3f 100644
--- a/compiled_starters/gleam/README.md
+++ b/compiled_starters/gleam/README.md
@@ -31,7 +31,7 @@ Time to move on to the next stage!
 
 Note: This section is for stages 2 and beyond.
 
-1. Ensure you have `gleam (1.11.1)` installed locally
+1. Ensure you have `gleam (1.13.0)` installed locally
 1. Run `./your_program.sh` to run your program, which is implemented in
    `src/main.gleam`.
 1. Commit your changes and run `git push origin master` to submit your solution
diff --git a/compiled_starters/gleam/codecrafters.yml b/compiled_starters/gleam/codecrafters.yml
index 0357ab8..866e833 100644
--- a/compiled_starters/gleam/codecrafters.yml
+++ b/compiled_starters/gleam/codecrafters.yml
@@ -7,5 +7,5 @@ debug: false
 # Use this to change the Gleam version used to run your code
 # on Codecrafters.
 #
-# Available versions: gleam-1.11
-buildpack: gleam-1.11
+# Available versions: gleam-1.13
+buildpack: gleam-1.13
diff --git a/dockerfiles/gleam-1.13.Dockerfile b/dockerfiles/gleam-1.13.Dockerfile
new file mode 100644
index 0000000..3e7bc25
--- /dev/null
+++ b/dockerfiles/gleam-1.13.Dockerfile
@@ -0,0 +1,17 @@
+# syntax=docker/dockerfile:1.7-labs
+FROM ghcr.io/gleam-lang/gleam:v1.13.0-erlang-alpine
+
+# Rebuild if gleam.toml or manifest.toml change
+ENV CODECRAFTERS_DEPENDENCY_FILE_PATHS="gleam.toml,manifest.toml"
+
+WORKDIR /app
+
+# .git & README.md are unique per-repository. We ignore them on first copy to prevent cache misses
+COPY --exclude=.git --exclude=README.md . /app
+
+# Force deps to be downloaded
+RUN gleam build
+
+# Cache build directory
+RUN mkdir -p /app-cached
+RUN mv build /app-cached/build
diff --git a/solutions/gleam/01-at4/code/README.md b/solutions/gleam/01-at4/code/README.md
index 112932f..0e95d3f 100644
--- a/solutions/gleam/01-at4/code/README.md
+++ b/solutions/gleam/01-at4/code/README.md
@@ -31,7 +31,7 @@ Time to move on to the next stage!
 
 Note: This section is for stages 2 and beyond.
 
-1. Ensure you have `gleam (1.11.1)` installed locally
+1. Ensure you have `gleam (1.13.0)` installed locally
 1. Run `./your_program.sh` to run your program, which is implemented in
    `src/main.gleam`.
 1. Commit your changes and run `git push origin master` to submit your solution
diff --git a/solutions/gleam/01-at4/code/codecrafters.yml b/solutions/gleam/01-at4/code/codecrafters.yml
index 0357ab8..866e833 100644
--- a/solutions/gleam/01-at4/code/codecrafters.yml
+++ b/solutions/gleam/01-at4/code/codecrafters.yml
@@ -7,5 +7,5 @@ debug: false
 # Use this to change the Gleam version used to run your code
 # on Codecrafters.
 #
-# Available versions: gleam-1.11
-buildpack: gleam-1.11
+# Available versions: gleam-1.13
+buildpack: gleam-1.13
diff --git a/starter_templates/gleam/config.yml b/starter_templates/gleam/config.yml
index 40ffaff..aad146f 100644
--- a/starter_templates/gleam/config.yml
+++ b/starter_templates/gleam/config.yml
@@ -1,3 +1,3 @@
 attributes:
-  required_executable: gleam (1.11.1)
+  required_executable: gleam (1.13.0)
   user_editable_file: src/main.gleam