CLI Completion Issues in Git Bash

“Add support for cli completion in git bash for windows ## Request Please make the Azure CLI Bash completion script honor `ARGCOMPLETE_USE_TEMPFILES` by using `_ARGCOMPLETE_STDOUT_FILENAME` and reading the completion results from that file. This would allow Git Bash on Windows to use the completion script without users replacing its completion function in their `.bashrc`. Alternatively, document the Git Bash limitation and this workaround. ## Reproduction On Windows 11 with Git Bash and Azure CLI installed via the Windows MSI, sourcing the upstream `az.completion` script and setting `ARGCOMPLETE_USE_TEMPFILES=1` is not sufficient: pressing Tab after `az ` offers filesystem paths instead of CLI commands. The tempfile-aware function below works in this environment. I tested it with Azure CLI 2.90.0. It creates `_ARGCOMPLETE_STDOUT_FILENAME`, reads the completion results from the temporary file, and cleans it up. Related discussion: Azure CLI #26051, which describes the Git Bash file descriptor limitation. ## Environment - OS: Windows 11 - Shell: Git Bash (`MINGW64`) - Azure CLI installation: Windows MSI - Azure CLI version: ``` { "azure-cli": "2.90.0", "azure-cli-core": "2.90.0", "azure-cli-telemetry": "1.1.0", "extensions": { "azure-devops": "1.0.8" } } ``` ## Workaround Using the stock bash completion file `curl -fsSL https://raw.githubusercontent.com/Azure/azure-cli/dev/az.completion -o ~/.azure/.az.completion` The completion in this scenario needs to use temp files and to get this going you need the completion to also be temp-file aware like this: ```bash if [[ -r "$HOME/.azure/.az.completion" ]]; then export ARGCOMPLETE_USE_TEMPFILES=1 source "$HOME/.azure/.az.completion" _az_python_argcomplete() { local IFS=$'\013' local SUPPRESS_SPACE=0 local TMPFILE local STATUS if compopt +o nospace 2>/dev/null; then SUPPRESS_SPACE=1 fi TMPFILE=$(mktemp) || return 1 COMPREPLY=($( IFS="$IFS" \ COMP_LINE="$COMP_LINE" \ COMP_POINT="$COMP_POINT" \ COMP_TYPE="$COMP_TYPE" \ _ARGCOMPLETE_COMP_WORDBREAKS="$COMP_WORDBREAKS" \ _ARGCOMPLETE=1 \ _ARGCOMPLETE_SUPPRESS_SPACE=$SUPPRESS_SPACE \ ARGCOMPLETE_USE_TEMPFILES=1 \ _ARGCOMPLETE_STDOUT_FILENAME="$TMPFILE" \ "$1" 8>&1 9>&2 1>/dev/null 2>/dev/null STATUS=$? cat "$TMPFILE" rm -f "$TMPFILE" exit "$STATUS" )) STATUS=$? if [[ $STATUS != 0 ]]; then unset COMPREPLY elif [[ $SUPPRESS_SPACE == 1 ]] && [[ "${COMPREPLY[0]}" =~ [=/:]$ ]]; then compopt -o nospace fi } fi ```”