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Re: [PATCH] git-submodule.sh: allow running in validate mode without pre
From: |
Nina Schoetterl-Glausch |
Subject: |
Re: [PATCH] git-submodule.sh: allow running in validate mode without previous update |
Date: |
Tue, 20 Jun 2023 19:35:16 +0200 |
User-agent: |
Evolution 3.46.4 (3.46.4-1.fc37) |
On Sun, 2023-06-18 at 23:20 +0200, Paolo Bonzini wrote:
> The call to git-submodule.sh done in configure may happen without a
> previous checkout of the roms/SLOF submodule, or even without a
> previous run of the script.
>
> So, handle creating a .git-submodule-status file even in validate
> mode. If git is absent, ensure that all passed directories exists
> (because you should be in a fresh untar and will not have stale
> arguments to git-submodule.sh) but do no other checks. If git
> is present, ensure that .git-submodule-status contains an entry
> for all submodules passed on the command line.
>
> With this change, "ignore" mode is not needed anymore.
>
> Reported-by: Nina Schoetterl-Glausch <nsg@linux.ibm.com>
> Fixes: b11f9bd96f4 ("configure: move SLOF submodule handling to
> pc-bios/s390-ccw", 2023-06-06)
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
> configure | 2 +-
> scripts/git-submodule.sh | 72 ++++++++++++++++++++++------------------
> 2 files changed, 41 insertions(+), 33 deletions(-)
>
> diff --git a/configure b/configure
> index 86363a7e508..2b41c49c0d1 100755
> --- a/configure
> +++ b/configure
> @@ -758,7 +758,7 @@ done
>
> if ! test -e "$source_path/.git"
> then
> - git_submodules_action="ignore"
> + git_submodules_action="validate"
> fi
>
> # test for any invalid configuration combinations
> diff --git a/scripts/git-submodule.sh b/scripts/git-submodule.sh
> index 11fad2137cd..c33d8fe4cac 100755
> --- a/scripts/git-submodule.sh
> +++ b/scripts/git-submodule.sh
> @@ -9,13 +9,22 @@ command=$1
> shift
> maybe_modules="$@"
>
> -# if not running in a git checkout, do nothing
> -test "$command" = "ignore" && exit 0
> -
> +test -z "$maybe_modules" && exit 0
> test -z "$GIT" && GIT=$(command -v git)
>
> cd "$(dirname "$0")/.."
>
> +no_git_error=
> +if test -n "$maybe_modules" && ! test -e ".git"; then
> + no_git_error='no git checkout exists'
> +elif test -n "$maybe_modules" && test -z "$GIT"; then
> + no_git_error='git binary not found'
> +fi
No need to test -n "$maybe_modules" if you exit early above.
> +
> +is_git() {
> + test -z "$no_git_error"
> +}
> +
> update_error() {
> echo "$0: $*"
> echo
> @@ -34,7 +43,7 @@ update_error() {
> }
>
> validate_error() {
> - if test "$1" = "validate"; then
> + if is_git && test "$1" = "validate"; then
> echo "GIT submodules checkout is out of date, and submodules"
> echo "configured for validate only. Please run"
> echo " scripts/git-submodule.sh update $maybe_modules"
> @@ -51,42 +60,41 @@ check_updated() {
> test "$CURSTATUS" = "$OLDSTATUS"
> }
>
> -if test -n "$maybe_modules" && ! test -e ".git"
> -then
> - echo "$0: unexpectedly called with submodules but no git checkout exists"
> - exit 1
> +if is_git; then
> + test -e $substat || touch $substat
> + modules=""
> + for m in $maybe_modules
> + do
> + $GIT submodule status $m 1> /dev/null 2>&1
> + if test $? = 0
> + then
> + modules="$modules $m"
> + grep $m $substat > /dev/null 2>&1 || $GIT submodule status
> $module >> $substat
> + else
> + echo "warn: ignoring non-existent submodule $m"
What is the rational for ignoring non-existing submodules, i.e. how do the
arguments to
the script go stale as you say in the patch description?
I'm asking because the fedora spec file initializes a new git repo in order to
apply
patches so the script exits with 0.
Nothing that cannot be worked around ofc.
> + fi
> + done
> +else
> + modules=$maybe_modules
> fi
>
> -if test -n "$maybe_modules" && test -z "$GIT"
> -then
> - echo "$0: unexpectedly called with submodules but git binary not found"
> - exit 1
> -fi
> -
> -modules=""
> -for m in $maybe_modules
> -do
> - $GIT submodule status $m 1> /dev/null 2>&1
> - if test $? = 0
> - then
> - modules="$modules $m"
> - else
> - echo "warn: ignoring non-existent submodule $m"
> - fi
> -done
> -
> case "$command" in
> status|validate)
> - test -f "$substat" || validate_error "$command"
> - test -z "$maybe_modules" && exit 0
> for module in $modules; do
> - check_updated $module || validate_error "$command"
> + if is_git; then
> + check_updated $module || validate_error "$command"
> + elif ! test -d $module; then
archive-source.sh creates an empty directory for e.g. roms/SLOF,
so this check succeeds even if the submodule sources are unavailable.
Something like
elif ! test -d $module || test -z "$(ls -A "$module")"; then
works.
> + echo "$0: sources not available for $module and $no_git_error"
> + validate_error "$command"
> + fi
> done
> - exit 0
> ;;
> +
> update)
> - test -e $substat || touch $substat
> - test -z "$maybe_modules" && exit 0
> + is_git || {
> + echo "$0: unexpectedly called with submodules but $no_git_error"
> + exit 1
> + }
>
> $GIT submodule update --init $modules 1>/dev/null
> test $? -ne 0 && update_error "failed to update modules"