implemented patchfile and pre post action of package manager, renamed pkgrem -> pkgrm

lib/filefct.sh

@@ -177,9 +177,39 @@ isdirempty()
 
 # ------------------------------------------------------------------------------
 # patch a file replacing all @var@ by the corresponding value in environment
+# or the variable list given in parameter
 patchfile()
 {
-    : # todo
+    local dstfile=$1 && shift
+    local workfile=${dstfile}.work
+
+    # Create a sub-process, to avoid bash environment pollution
+    (
+        local varlist= pattern=
+        if [[ $# -eq 0 ]] ; then
+            pattern="-e s/<\(.*\)>/\$\1\$\1/g"
+        else
+            local var=
+            for var in $* ; do
+                if ! declare -p $var >/dev/null 2>&1 ; then
+                    local $var=$(eval echo \$$var)
+                fi
+                export $var
+                pattern="$pattern -e s/@$var@/\$$var/g"
+                varlist=$varlist\$$var
+            done
+        fi
+
+        # sed replace <VAR> with \$$VAR and envsubst do the replace by value
+        sed $pattern $dstfile | envsubst ${varlist:+"$varlist"} > "$workfile"
+    )
+
+    local -a rights=( $(stat --printf="%a %u %g" "$dstfile") )
+    mv "$workfile" "$dstfile"
+    chmod ${rights[0]} "$dstfile"
+    chown ${rights[1]}:${rights[2]} "$dstfile"
+
+    unset dstfile
 }
 
 # EOF

lib/pkgman.sh

@@ -29,11 +29,15 @@ pkginst()
         exit 11
     fi
     if [[ ! $INSTALL_MODE == dev ]]; then
+        exec_preinst $@
         $PKG_MAN $COM_INSTALL $@
+        exec_postinst $@
     else
         local pkg=
         for pkg in $@; do
+            exec_preinst $pkg
             $PKG_MAN $COM_INSTALL $pkg
+            exec_postinst $pkg
         done
         unset pkg
     fi
@@ -46,14 +50,16 @@ export -f pkginst
 pkgupgd()
 {
     prnt I "Application de la mise à jours du système..."
+    exec_preupgd
     $PKG_MAN $COM_UPGRADE
+    exec_postupgd
 }
 export -f pkgupgd
 
 
 # ------------------------------------------------------------------------------
 # Uninstallation
-pkgrem()
+pkgrm()
 {
     prnt I "Désinstallation de paquets..."
     if [[ $# -lt 1 ]]; then
@@ -61,25 +67,167 @@ pkgrem()
         exit 11
     fi
     if [[ ! $INSTALL_MODE == dev ]]; then
+        exec_prerm $@
         $PKG_MAN $COM_REMOVE $@
+        exec_postrm
     else
         local pkg=
         for pkg in $@; do
+            exec_prerm $pkg
             $PKG_MAN $COM_REMOVE $pkg
+            exec_postrm
         done
         uset pkg
     fi
 }
-export -f pkgrem
+export -f pkgrm
 
 
 # ------------------------------------------------------------------------------
 # Cleanup
-pkgautorem()
+pkgautorm()
 {
     prnt I "Désinstallation de paquets superflus..."
+    exec_preautorm
     $PKG_MAN $COM_AUTOREM
+    exec_postautorm
 }
-export -f pkgautorem
+export -f pkgautorm
+
+
+# ------------------------------------------------------------------------------
+# Execute preinstallation code
+exec_preinst()
+{
+    local cmd=$(echo $GET_INSTALLLIST | sed "s/@pkg@/$@/")
+    local pkglist=$($cmd)
+    unset $cmd
+    for pkg in $pkglist; do
+        if [[ $(function_exists preinst_$pkg) ]]; then
+            prnt I "Exécution de la préinstallation de $pkg ..."
+            preinst_$pkg
+        fi
+    done
+    export POSTINSTLIST=$pkglist
+    unset pkglist
+}
+export -f exec_preinst
+
+
+# ------------------------------------------------------------------------------
+# Execute postinstallation code
+exec_postinst()
+{
+    if [[ -z $POSTINSTLIST ]]; then
+        return 0
+    fi
+    for pkg in $POSTINSTLIST; do
+        if [[ $(function_exists postinst_$pkg) ]]; then
+            prnt I "Exécution de la postinstallation de $pkg ..."
+            postinst_$pkg
+        fi
+    done
+    unset POSTINSTLIST
+}
+export -f exec_postinst
+
+
+# ------------------------------------------------------------------------------
+# Execute preremove code
+exec_prerm()
+{
+    local cmd=$(echo $GET_REMOVELIST | sed "s/@pkg@/$@/")
+    local pkglist=$($cmd)
+    unset $cmd
+    for pkg in $pkglist; do
+        if [[ $(function_exists prerm_$pkg) ]]; then
+            prnt I "Exécution du préretrait de $pkg ..."
+            prerm_$pkg
+        fi
+    done
+    export POSTRMLIST=$pkglist
+    unset pkglist
+}
+export -f exec_prerm
+
+
+# ------------------------------------------------------------------------------
+# Execute postremove code
+exec_postrm()
+{
+    if [[ -z $POSTRMLIST ]]; then
+        return 0
+    fi
+    for pkg in $POSTRMLIST; do
+        if [[ $(function_exists postrm_$pkg) ]]; then
+            prnt I "Exécution de la postretrait de $pkg ..."
+            postrm_$pkg
+        fi
+    done
+    unset POSTRMLIST
+}
+export -f exec_postrm
+
+
+# ------------------------------------------------------------------------------
+# Execute preupgrade code
+exec_preupgd()
+{
+    local pkglist=$($GET_UPGRADELIST)
+    for pkg in $pkglist; do
+        if [[ $(function_exists preupgd_$pkg) ]]; then
+            prnt I "Exécution de la pré mise à jour de $pkg ..."
+            preupgd_$pkg
+        fi
+    done
+    export POSTUPGDLIST=$pkglist
+    unset pkglist
+}
+export -f exec_preupgd
+
+
+# ------------------------------------------------------------------------------
+# Execute postupgrade code
+exec_postupgd()
+{
+    if [[ -z $POSTUPGDLIST ]]; then
+        return 0
+    fi
+    for pkg in $POSTUPGDLIST; do
+        if [[ $(function_exists postupgd_$pkg) ]]; then
+            prnt I "Exécution de la post mise à jour de $pkg ..."
+            postupgd_$pkg
+        fi
+    done
+    unset POSTUPGDLIST
+}
+export -f exec_postupgd
+
+
+# ------------------------------------------------------------------------------
+# Execute prerm code in autoremove context
+exec_preautorm()
+{
+    local pkglist=$($GET_AUTOREMLIST)
+    for pkg in $pkglist; do
+        if [[ $(function_exists prerm_$pkg) ]]; then
+            prnt I "Exécution du préretrait de $pkg ..."
+            prerm_$pkg
+        fi
+    done
+    export POSTRMLIST=$pkglist
+    unset pkglist
+}
+export -f exec_preautorm
+
+
+# ------------------------------------------------------------------------------
+# Execute postrm code in autoremove context
+exec_postautorm()
+{
+    exec_postrm
+}
+export -f exec_postautorm
+
 
 # EOF