[OE-core] [PATCH v2] useradd.bbclass: remove user/group created by the package in clean* task

[Richard Purdie]

On Tue, 2016-04-05 at 10:25 +0300, Maxin B. John wrote:
> At present, if a recipe is built which creates users/groups via
> useradd.bbclass,
> those users/groups are not removed (at least from sysroot) when the
> recipe/package is cleaned using clean/cleansstate/cleanall.

need to add "or when a recipe is rebuild and 'unstaged' from the the
sysroot".

> The "userdel_sysroot_sstate()" provides that functionality.
> 
> [YOCTO #9262]
> 
> Signed-off-by: Maxin B. John <maxin.john at intel.com>
> ---
>  meta/classes/sstate.bbclass  |  6 ++++++
>  meta/classes/useradd.bbclass | 26 ++++++++++++++++++++++++++
>  2 files changed, 32 insertions(+)
> 
> diff --git a/meta/classes/sstate.bbclass
> b/meta/classes/sstate.bbclass
> index 6f285da..96b6265 100644
> --- a/meta/classes/sstate.bbclass
> +++ b/meta/classes/sstate.bbclass
> @@ -51,6 +51,7 @@ SSTATEPREINSTFUNCS = ""
>  SSTATEPOSTUNPACKFUNCS = "sstate_hardcode_path_unpack"
>  SSTATEPOSTINSTFUNCS = ""
>  EXTRA_STAGING_FIXMES ?= ""
> +SSTATECLEANFUNCS = ""
>  
>  SIGGEN_LOCKEDSIGS_CHECK_LEVEL ?= 'error'
>  
> @@ -444,6 +445,11 @@ def sstate_clean(ss, d):
>                  stfile.endswith(rm_nohash):
>              oe.path.remove(stfile)
>  
> +    # Remove the users/groups created by the package
> +    for cleanfunc in (d.getVar('SSTATECLEANFUNCS', True) or
> '').split():
> +        if d.getVar('BB_CURRENTTASK', True) in ['configure',
> 'clean']:
> +            bb.build.exec_func(cleanfunc, d)
> +

The hook needs to be generic so the BB_CURRENTTASK check needs to move
to userdel_sysroot_sstate itself.

Otherwise looks good though, thanks.

Cheers,

Richard

>  sstate_clean[vardepsexclude] = "SSTATE_MANFILEPREFIX"
>  
>  CLEANFUNCS += "sstate_cleanall"
> diff --git a/meta/classes/useradd.bbclass
> b/meta/classes/useradd.bbclass
> index 0a6f2be..2b2bb96 100644
> --- a/meta/classes/useradd.bbclass
> +++ b/meta/classes/useradd.bbclass
> @@ -127,6 +127,32 @@ useradd_sysroot_sstate () {
>  	fi
>  }
>  
> +userdel_sysroot_sstate () {
> +if test "x${STAGING_DIR_TARGET}" != "x"; then
> +    export PSEUDO="${FAKEROOTENV}
> PSEUDO_LOCALSTATEDIR=${STAGING_DIR_TARGET}${localstatedir}/pseudo
> ${STAGING_DIR_NATIVE}${bindir}/pseudo"
> +    OPT="--root ${STAGING_DIR_TARGET}"
> +
> +    # Remove groups and users defined for package
> +    GROUPADD_PARAM="${@get_all_cmd_params(d, 'groupadd')}"
> +    USERADD_PARAM="${@get_all_cmd_params(d, 'useradd')}"
> +
> +    if test "x`echo $USERADD_PARAM | tr -d '[:space:]'`" != "x";
> then
> +        user=`echo "$USERADD_PARAM" | cut -d ';' -f 1 | awk '{ print
> $NF }'`
> +        perform_userdel "${STAGING_DIR_TARGET}" "$OPT $user"
> +    fi
> +
> +    if test "x`echo $GROUPADD_PARAM | tr -d '[:space:]'`" != "x";
> then
> +        group=`echo "$GROUPADD_PARAM" | cut -d ';' -f 1 | awk '{
> print $NF }'`
> +        perform_groupdel "${STAGING_DIR_TARGET}" "$OPT $group"
> +    fi
> +fi
> +}
> +
> +SSTATECLEANFUNCS = "userdel_sysroot_sstate"
> +SSTATECLEANFUNCS_class-cross = ""
> +SSTATECLEANFUNCS_class-native = ""
> +SSTATECLEANFUNCS_class-nativesdk = ""
> +
>  do_install[prefuncs] += "${SYSROOTFUNC}"
>  SYSROOTFUNC = "useradd_sysroot"
>  SYSROOTFUNC_class-cross = ""
> -- 
> 2.4.0
>