PR review comments: update micromamba, use MAMBA_EXE environment variable

repo2docker/buildpacks/conda/__init__.py

@@ -339,9 +339,9 @@ class CondaBuildPack(BaseImage):
                     "${NB_USER}",
                     r"""
                 TIMEFORMAT='time: %3R' \
-                bash -c 'time /tmp/bin/micromamba install -p {0} -f "{1}" && \
-                # time /tmp/bin/micromamba clean --all -y && \
-                /tmp/bin/micromamba list -p {0} \
+                bash -c 'time ${{MAMBA_EXE}} install -p {0} -f "{1}" && \
+                # time ${{MAMBA_EXE}} clean --all -y && \
+                ${{MAMBA_EXE}} list -p {0} \
                 '
                 """.format(
                         env_prefix, environment_yml
@@ -358,9 +358,9 @@ class CondaBuildPack(BaseImage):
                 (
                     "${NB_USER}",
                     r"""
-                /tmp/bin/micromamba install -p {0} r-base{1} r-irkernel={2} r-devtools -y && \
-                #  /tmp/bin/micromamba clean --all -f -y && \
-                /tmp/bin/micromamba list -p {0}
+                ${{MAMBA_EXE}} install -p {0} r-base{1} r-irkernel=1.2 r-devtools -y && \
+                #  ${{MAMBA_EXE}} clean --all -f -y && \
+                ${{MAMBA_EXE}} list -p {0}
                 """.format(
                         env_prefix, r_pin
                     ),

repo2docker/buildpacks/conda/install-base-env.bash

@@ -3,10 +3,12 @@
 # and sets up the base environment
 set -ex
 
-
 cd $(dirname $0)
 
-URL="https://anaconda.org/conda-forge/micromamba/0.17.0/download/linux-64/micromamba-0.17.0-0.tar.bz2"
+export MAMBA_VERSION=0.19.1
+export CONDA_VERSION=4.11.0
+
+URL="https://anaconda.org/conda-forge/micromamba/${MAMBA_VERSION}/download/linux-64/micromamba-${MAMBA_VERSION}-0.tar.bz2"
 
 # make sure we don't do anything funky with user's $HOME
 # since this is run as root
@@ -35,7 +37,7 @@ update_dependencies: false
 # channel_priority: flexible
 EOT
 
-micromamba install conda mamba -y
+micromamba install conda=${CONDA_VERSION} mamba=${MAMBA_VERSION} -y
 
 echo "installing notebook env:"
 cat "${NB_ENVIRONMENT_FILE}"

tests/conda/binder-dir/verify

@@ -5,6 +5,17 @@ from subprocess import check_output
 assert sys.version_info[:2] == (3, 5), sys.version
 
 out = check_output(["/tmp/bin/micromamba", "--version"]).decode("utf8").strip()
-assert out == "0.17.0", out
+assert (
+    out
+    == """micromamba: 0.19.1
+libmamba: 0.19.1"""
+), out
+
+out = check_output(["mamba", "--version"]).decode("utf8").strip()
+assert (
+    out
+    == """mamba 0.19.1
+conda 4.11.0"""
+), out
 
 import numpy

tests/conda/default-env/postBuild

@@ -1,5 +1,5 @@
 #!/bin/bash
 # install pytest with conda in the default env (should be $KERNEL_PYTHON_PREFIX)
-/tmp/bin/micromamba install -yq pytest -p $KERNEL_PYTHON_PREFIX
+conda install -yq pytest
 # install there with pip (should be the same)
 pip install there