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Start in host CWD, autoconfigure ATMOS_BASE_PATH (cloudposse#756)
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,60 @@ | ||
| # Files in the profile.d directory are executed by the lexicographical order of their file names. | ||
| # This file sets the working directory inside Geodesic to match the host directory Geodesic | ||
| # was launched from, if possible. If the host directory is not accessible, it sets the working directory to `/`. | ||
| # | ||
| # This file is named _workdir.sh. The leading underscore is needed to ensure this file executes before | ||
| # other files that may depend on it. The "w" is needed to ensure it is loaded *after* _preferences.sh | ||
| # | ||
|
|
||
| function _file_device() { | ||
| df --output=source "$1" | tail -1 | ||
| } | ||
|
|
||
| # file_on_host is true when the argument is a file or directory that appears to be on the Host file system. | ||
| # Intended to support files on user-defined bind mounts in addition to `/localhost`. | ||
| # This function is run by the command line prompt setup, so it should be very fast. | ||
| # Therefore we cache some info in the environment. | ||
| if df -a | grep -q /localhost; then | ||
| export GEODESIC_LOCALHOST_DEVICE=$(_file_device /localhost) | ||
| else | ||
| export GEODESIC_LOCALHOST_MISSING=true | ||
| fi | ||
|
|
||
| function file_on_host() { | ||
| [[ $GEODESIC_LOCALHOST_MISSING != "true" ]] && [[ $(_file_device "$1") == ${GEODESIC_LOCALHOST_DEVICE} ]] | ||
| } | ||
|
|
||
| function _default_initial_wd() { | ||
| if [[ -d /stacks ]]; then | ||
| # Newer default using `atmos` and stacks | ||
| export GEODESIC_WORKDIR="/" | ||
| else | ||
| # Older default working directory | ||
| export GEODESIC_WORKDIR="/conf" | ||
| fi | ||
| red "# Defaulting initial working directory to \"${GEODESIC_WORKDIR}\"" | ||
| } | ||
|
|
||
| # You can set GEODESIC_WORKDIR in your Geodesic preferences to have full control of your starting working directory | ||
| if [[ -d $GEODESIC_WORKDIR ]]; then | ||
| [[ $SHLVL == 1 ]] && green "# Initial working directory configured as ${GEODESIC_WORKDIR}" | ||
| else | ||
| if [[ -d $GEODESIC_HOST_CWD ]]; then | ||
| if [[ -n $LOCAL_HOME ]] && $(file_on_host "$GEODESIC_HOST_CWD"); then | ||
| export GEODESIC_WORKDIR=$(readlink -e "${GEODESIC_HOST_CWD}") | ||
| green "# Initial working directory set from host CWD to ${GEODESIC_WORKDIR}" | ||
| else | ||
| red "# Host CWD \"${GEODESIC_HOST_CWD}\" does not appear to be accessible from this container" | ||
| _default_initial_wd | ||
| fi | ||
| else | ||
| red "# No configured working directory is accessible:" | ||
| red "# GEODESIC_WORKDIR is \"$GEODESIC_WORKDIR\"" | ||
| red "# GEODESIC_HOST_CWD is \"$GEODESIC_HOST_CWD\"" | ||
| _default_initial_wd | ||
| fi | ||
| fi | ||
|
|
||
| [[ $SHLVL == 1 ]] && cd "${GEODESIC_WORKDIR}" | ||
|
|
||
| unset -f _default_initial_wd |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,38 @@ | ||
| #!/bin/bash | ||
|
|
||
| function _configure_atmos_base_path() { | ||
| # Leave $ATMOS_BASE_PATH alone if it is already set | ||
| if [[ -n $ATMOS_BASE_PATH ]]; then | ||
| if [[ $SHLVL == 1 ]]; then | ||
| green "# Using configured $ATMOS_BASE_PATH of \"$ATMOS_BASE_PATH\"" | ||
| fi | ||
| return | ||
| fi | ||
|
|
||
| # If $GEODESIC_WORKDIR contains both a "stacks" and "components" directory, | ||
| # use it as the $ATMOS_BASE_PATH | ||
| if [[ -d "${GEODESIC_WORKDIR}/stacks" ]] && [[ -d "${GEODESIC_WORKDIR}/components" ]]; then | ||
| export ATMOS_BASE_PATH="${GEODESIC_WORKDIR}" | ||
| green "# Setting ATMOS_BASE_PATH to \"$ATMOS_BASE_PATH\" based on children of workdir" | ||
| return | ||
| fi | ||
|
|
||
| # If $GEODESIC_WORKDIR is a descendent of either a "stacks" or "components" directory, | ||
| # use the parent of that directory as ATMOS_BASE_PATH | ||
| if [[ "${GEODESIC_WORKDIR}" =~ /(stacks|components)/ ]]; then | ||
| if [[ "${GEODESIC_WORKDIR}" =~ /stacks/ ]]; then | ||
| export ATMOS_BASE_PATH="${GEODESIC_WORKDIR%/stacks/*}" | ||
| else | ||
| export ATMOS_BASE_PATH="${GEODESIC_WORKDIR%/components/*}" | ||
| fi | ||
| green "# Setting ATMOS_BASE_PATH to \"$ATMOS_BASE_PATH\" based on parent of workdir" | ||
| return | ||
| fi | ||
| yellow "# No candidate for ATMOS_BASE_PATH found, leaving it unset" | ||
| } | ||
|
|
||
| # Only configure ATMOS_BASE_PATH if we find an `atmos` executable, | ||
| # but otherwise leave the function available for the user to call explicitly. | ||
| # NOTE: If we start shipping `atmos` with Geodesic by default, change this to | ||
| # [[ -f /usr/local/etc/atmos/atmos.yaml ]] && _configure_atmos_base_path | ||
| command -v atmos >/dev/null && _configure_atmos_base_path && unset -f _configure_atmos_base_path |
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