From bc88a4972864fe316b09d2896c259ef7f5372273 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kriszti=C3=A1n=20Sz=C5=B1cs?= <szucs.krisztian@gmail.com>
Date: Thu, 20 Jan 2022 09:19:35 +0100
Subject: [PATCH 1/3] Ensure that pyarrow is built with an older but tested
 with a newer numpy version during verification

---
 dev/release/verify-release-candidate.sh | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/dev/release/verify-release-candidate.sh b/dev/release/verify-release-candidate.sh
index 44b35f2bb5a9..a0f9ee2463e8 100755
--- a/dev/release/verify-release-candidate.sh
+++ b/dev/release/verify-release-candidate.sh
@@ -379,8 +379,6 @@ test_csharp() {
 test_python() {
   pushd python
 
-  pip install -r requirements-build.txt -r requirements-test.txt
-
   export PYARROW_WITH_DATASET=1
   export PYARROW_WITH_PARQUET=1
   export PYARROW_WITH_PLASMA=1
@@ -394,7 +392,10 @@ test_python() {
     export PYARROW_WITH_GANDIVA=1
   fi
 
+  pip install -r requirements-build.txt
   python setup.py build_ext --inplace
+
+  pip install -r requirements-test.txt
   pytest pyarrow -v --pdb
 
   popd

From a42c0e139cb6b8ea27a934ae537e551a61c7e481 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kriszti=C3=A1n=20Sz=C5=B1cs?= <szucs.krisztian@gmail.com>
Date: Thu, 20 Jan 2022 10:59:13 +0100
Subject: [PATCH 2/3] [Release] Install a single numpy version and use mamba
 instead of conda

---
 dev/release/verify-release-candidate.sh | 26 +++++++++++++++----------
 1 file changed, 16 insertions(+), 10 deletions(-)

diff --git a/dev/release/verify-release-candidate.sh b/dev/release/verify-release-candidate.sh
index a0f9ee2463e8..440e147787c0 100755
--- a/dev/release/verify-release-candidate.sh
+++ b/dev/release/verify-release-candidate.sh
@@ -239,7 +239,7 @@ setup_miniconda() {
     OS=MacOSX
   fi
   ARCH="$(uname -m)"
-  MINICONDA_URL="https://github.com/conda-forge/miniforge/releases/latest/download/Miniforge3-${OS}-${ARCH}.sh"
+  MINICONDA_URL="https://github.com/conda-forge/miniforge/releases/latest/download/Mambaforge3-${OS}-${ARCH}.sh"
 
   MINICONDA=$PWD/test-miniconda
 
@@ -253,12 +253,21 @@ setup_miniconda() {
 
   . $MINICONDA/etc/profile.d/conda.sh
 
-  conda create -n arrow-test -y -q -c conda-forge \
-    python=3.8 \
-    nomkl \
+  # Dependencies from python/requirements-build.txt and python/requirements-test.txt
+  # with the exception of oldest-supported-numpy since it doesn't have a conda package
+  mamba create -n arrow-test -y \
+    cffi \
+    cython \
+    hypothesis \
     numpy \
     pandas \
-    cython
+    pytest \
+    pytest-lazy-fixture \
+    python=3.8 \
+    pytz \
+    setuptools \
+    setuptools_scm
+
   conda activate arrow-test
   echo "Using conda environment ${CONDA_PREFIX}"
 }
@@ -392,10 +401,7 @@ test_python() {
     export PYARROW_WITH_GANDIVA=1
   fi
 
-  pip install -r requirements-build.txt
   python setup.py build_ext --inplace
-
-  pip install -r requirements-test.txt
   pytest pyarrow -v --pdb
 
   popd
@@ -633,7 +639,7 @@ test_linux_wheels() {
     else
       local channels="-c conda-forge"
     fi
-    conda create -yq -n ${env} ${channels} python=${py_arch//[mu]/}
+    mamba create -yq -n ${env} ${channels} python=${py_arch//[mu]/}
     conda activate ${env}
     pip install -U pip
 
@@ -673,7 +679,7 @@ test_macos_wheels() {
     else
       local channels="-c conda-forge"
     fi
-    conda create -yq -n ${env} ${channels} python=${py_arch//m/}
+    mamba create -yq -n ${env} ${channels} python=${py_arch//m/}
     conda activate ${env}
     pip install -U pip
 

From 0222b73918f23963464149579d7e888aba32af3c Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Kriszti=C3=A1n=20Sz=C5=B1cs?= <szucs.krisztian@gmail.com>
Date: Thu, 20 Jan 2022 11:38:12 +0100
Subject: [PATCH 3/3] [Release] Fix mambaforge url

---
 dev/release/verify-release-candidate.sh | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/dev/release/verify-release-candidate.sh b/dev/release/verify-release-candidate.sh
index 440e147787c0..d6294f8318d5 100755
--- a/dev/release/verify-release-candidate.sh
+++ b/dev/release/verify-release-candidate.sh
@@ -239,7 +239,7 @@ setup_miniconda() {
     OS=MacOSX
   fi
   ARCH="$(uname -m)"
-  MINICONDA_URL="https://github.com/conda-forge/miniforge/releases/latest/download/Mambaforge3-${OS}-${ARCH}.sh"
+  MINICONDA_URL="https://github.com/conda-forge/miniforge/releases/latest/download/Mambaforge-${OS}-${ARCH}.sh"
 
   MINICONDA=$PWD/test-miniconda