Add support for python virtual envs

[dotfiles.git] / bin / dot

diff --git a/bin/dot b/bin/dot
index aa633ec68a98515150969734c87925fabe8fb605..dc3e8fa2e8114be4a85f5115f8d013bdd6efc47b 100755 (executable)
--- a/bin/dot
+++ b/bin/dot
@@ -1,6 +1,14 @@
 #!/bin/bash
-ENVS="$HOME/envs"
-ANSIBLE="$ENVS/ansible/bin/ansible-playbook"
+ENVS="$HOME/envs"  # Python environments - including required Ansible
+ANSIBLE="$ENVS/ansible/bin/ansible-playbook"  # Core command
+TASKFILE="$HOME/backup/dot.$HOSTNAME.yaml"  # Backup of localhost config
+DOTFILES="$HOME/dotfiles"  # Where to find dotfiles
+
+LINKFILES="$DOTFILES/files"  # Files to symlink
+INSTALLS="$DOTFILES/install"  # Install scripts
+DOT="$HOME/.dot"  # Touched files go here to track installs
+REQS="$DOTFILES/reqs"  # Python env requirements.txt files
+
 read -d '' HELP << EOF
 dot - a (mostly) one script dotfiles manager
 
@@ -42,6 +50,9 @@ dot install SCRIPT
   to run ~/dotfiles/SCRIPT.sh if it has not yet been run
   creates ~/dot/SCRIPT.installed after SCRIPT has been run
 
+dot env ENV
+  create Python environment ~/envs/ENV based on ~/dotfiles/reqs/ENV.txt
+
 EOF
 
 
@@ -62,10 +73,6 @@ fi
 # set -v
 #
 
-TASKFILE="$HOME/backup/dot.$HOSTNAME.yaml"
-LINKFILES="$HOME/dotfiles/files"
-INSTALLS="$HOME/dotfiles/install"
-DOT="$HOME/.dot"
 
 read -d '' EMPTY_TASKFILE << EOF
 ---
@@ -152,7 +159,6 @@ fi
        echo "Run 'dot apply' to create all configured symlinks"
 fi
 
-
 if [ "$1" == "apply" ]; then
   if [[ ! -f "$TASKFILE" ]]; then
                echo "$TASKFILE is missing. Run 'dot setup'"
@@ -193,3 +199,38 @@ EOF
        echo "    $RUN_INSTALL" >> $TASKFILE
        echo "Run 'dot apply' to run the install"
 fi
+
+
+if [ "$1" == "env" ]; then
+       if [ ! -n "$2" ]; then
+               echo "Can create: (.txt files in $REQS)"
+               cd $REQS
+               ls -p | grep -v / | grep .txt
+               exit 1
+       fi
+  if [[ ! -f "$REQS/$2.txt" ]]; then
+               echo "No such requirements file script $REQS/$2.txt"
+               echo "Run dot env with no params to list files."
+               exit 1
+       fi
+
+read -d '' ADD_ENV << EOF
+    - name: check env $2
+      stat:
+        path: "$ENVS/$2"
+      register: $2_path
+    - name: install $2
+      ansible.builtin.shell: |
+        cd $ENVS
+        python3 -m venv $2
+        $ENVS/$2/bin/python -m pip install -r $REQS/$2.txt
+      when: not $2_path.stat.exists
+    - name: verify env $2 exists
+      ansible.builtin.debug:
+        msg: "env $2 exists"
+      when: $2_path.stat.exists
+EOF
+       echo "    $ADD_ENV" >> $TASKFILE
+       echo "Run 'dot apply' to run the install"
+fi
+