From 6343505069eb684e08f19eefb1cf76c2db0be48d Mon Sep 17 00:00:00 2001
From: Brad Warren <bmw@eff.org>
Date: Tue, 28 Apr 2020 12:21:01 -0700
Subject: [PATCH] Build constraints.txt in snapcraft.

---
 snap/snapcraft.yaml | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/snap/snapcraft.yaml b/snap/snapcraft.yaml
index 2e4f68c00..df0ed6a57 100644
--- a/snap/snapcraft.yaml
+++ b/snap/snapcraft.yaml
@@ -47,13 +47,16 @@ parts:
     plugin: python
     source: .
     source-subdir: acme
-    constraints: [$SNAPCRAFT_PART_SRC/constraints.txt]
+    constraints: [$SNAPCRAFT_STAGE/constraints.txt]
+    override-pull: |
+        snapcraftctl pull
+        $SNAPCRAFT_PART_SRC/tools/strip_hashes.py $SNAPCRAFT_PART_SRC/letsencrypt-auto-source/pieces/dependency-requirements.txt > $SNAPCRAFT_STAGE/constraints.txt
     python-version: python3
   certbot:
     plugin: python
     source: .
     source-subdir: certbot
-    constraints: [$SNAPCRAFT_PART_SRC/constraints.txt]
+    constraints: [$SNAPCRAFT_STAGE/constraints.txt]
     python-version: python3
     after: [acme]
     override-pull: |
@@ -66,7 +69,7 @@ parts:
     plugin: python
     source: .
     source-subdir: certbot-apache
-    constraints: [$SNAPCRAFT_PART_SRC/constraints.txt]
+    constraints: [$SNAPCRAFT_STAGE/constraints.txt]
     python-version: python3
     after: [python-augeas, certbot]
     stage-packages: [libaugeas0]
@@ -77,7 +80,7 @@ parts:
     plugin: python
     source: .
     source-subdir: certbot-nginx
-    constraints: [$SNAPCRAFT_PART_SRC/constraints.txt]
+    constraints: [$SNAPCRAFT_STAGE/constraints.txt]
     python-version: python3
     # This is the last step, compile pycache now as there should be no conflicts.
     override-prime: |