Installer fixes (#3962)

* Switch variable to make it easier to debug
Fixes #3933

* rename output file

* add setting to directly generate refs

* use prod mode

* fix check

* add debug flags

* remove debug marker

* pre-safe keys

* update installer ref

* split installer steps

* split steps further

* try static adding

* remove split key add

* try dry rn again

* do not dry run keys

* fix debian 11 detection

* add ci to let install run through

* remove flags

* remove dryrun

* run on master

* query api on test

* fix missing env

* use matmair for tests

* use specific version

* remove old python first

* check python version

* add more version checks

* multiline marker for action

* add option to select python env

* set python version before running installer

* cleanup script

* use inline apt for python install

* package 3.9 by default

* remove custom python install

* add some sleeps

* fix package names

* reduce double depb definition

* set python version

* remove 3.9 requirement

* do invoke and wheel install in the right context

* fix typing for 3.8

* use var for config file if it exsists

* fix discovery

* use raw output for jq

* remove tests

* revert change in tasks.py

contrib/installer/settings.yml

@@ -0,0 +1,32 @@
+# All settings are optional (with their default values provided below), and
+# can also be set with an environment variable with the same name, capitalized
+# and prefixed by `BASHLY_` - for example: BASHLY_SOURCE_DIR
+#
+# When setting environment variables, you can use:
+# - "0", "false" or "no" to represent false
+# - "1", "true" or "yes" to represent true
+
+# The path containing the bashly configuration and source files
+source_dir: src
+
+# The path to use for creating the bash script
+target_dir: ..
+
+# The path to use for upgrading library files, relative to the source dir
+lib_dir: lib
+
+# When true, enable bash strict mode (set -euo pipefail)
+strict: false
+
+# When true, the generated script will use tab indentation instead of spaces
+# (every 2 leading spaces will be converted to a tab character)
+tab_indent: false
+
+# When true, the generated script will consider any argument in the form of
+# `-abc` as if it is `-a -b -c`.
+compact_short_flags: true
+
+# Set to 'production' or 'development':
+# - production    generate a smaller script, without file markers
+# - development   generate with file markers
+env: production