epm prescription.d/common.sh: print out used epm commands

prescription.d/common-outformat.sh

+#!/bin/sh
+
+# copied from /etc/init.d/outformat (ALT Linux)
+
+
+# FIXME on Android: FIX ME! implement ttyname_r() bionic/libc/bionic/stubs.c:366
+inputisatty()
+{
+    # check stdin
+    #tty -s 2>/dev/null
+    test -t 0
+}
+
+isatty()
+{
+    # check stdout
+    test -t 1
+}
+
+isatty2()
+{
+    # check stderr
+    test -t 2
+}
+
+check_tty()
+{
+    isatty2 || return
+
+    # Set a sane TERM required for tput
+    [ -n "$TERM" ] || TERM=dumb
+    export TERM
+
+    # grep -E from busybox may not --color
+    # grep -E from MacOS print help to stderr
+    if grep -E --help 2>&1 | grep -q -- "--color" ; then
+        export EGREPCOLOR="--color"
+    fi
+
+    is_command tput || return
+    # FreeBSD does not support tput -S
+    echo | a= tput -S >/dev/null 2>/dev/null || return
+    USETTY="tput -S"
+}
+
+: ${BLACK:=0} ${RED:=1} ${GREEN:=2} ${YELLOW:=3} ${BLUE:=4} ${MAGENTA:=5} ${CYAN:=6} ${WHITE:=7}
+
+set_boldcolor()
+{
+    [ -n "$USETTY" ] || return
+    {
+        echo bold
+        echo setaf $1
+    } | $USETTY
+}
+
+set_color()
+{
+    [ -n "$USETTY" ] || return
+    {
+        echo setaf $1
+    } | $USETTY
+}
+
+restore_color()
+{
+    [ -n "$USETTY" ] || return
+    {
+        echo op; # set Original color Pair.
+        echo sgr0; # turn off all special graphics mode (bold in our case).
+    } | $USETTY
+}
+
+echover()
+{
+    [ -z "$verbose" ] && return
+    echo "$*" >&2
+}
+
+# echo string without EOL
+echon()
+{
+    # default /bin/sh on MacOS does not recognize -n
+    echo -n "$*" 2>/dev/null || a= /bin/echo -n "$*"
+}
+
+is_root()
+{
+    local EFFUID="$(id -u)"
+    [ "$EFFUID" = "0" ]
+}
+
+# Print command line and run command line
+showcmd()
+{
+    if [ -z "$quiet" ] ; then
+        set_boldcolor $GREEN
+        local PROMTSIG="\$"
+        is_root && PROMTSIG="#"
+        echo " $PROMTSIG $*"
+        restore_color
+    fi >&2
+}
+
+# Print command
+echocmd()
+{
+    set_boldcolor $GREEN
+    local PROMTSIG="\$"
+    is_root && PROMTSIG="#"
+    echo -n "$PROMTSIG $*"
+    restore_color
+}
+
+# Print command line and run command line
+docmd()
+{
+    showcmd "$*$EXTRA_SHOWDOCMD"
+    "$@"
+}
+

prescription.d/common.sh

@@ -3,6 +3,7 @@
 # kind of hack: inheritance --force from main epm
 echo "$EPM_OPTIONS" | grep -q -- "--force" && force="--force"
 echo "$EPM_OPTIONS" | grep -q -- "--auto" && auto="--auto"
+echo "$EPM_OPTIONS" | grep -q -- "--verbose" && verbose="--verbose"
 
 fatal()
 {
@@ -27,16 +28,48 @@ assure_root()
 }
 
 
-if [ "$1" = "--remove" ] ; then
-    epm remove $PKGNAME
-    exit
+# print a path to the command if exists in $PATH
+if a= type -a type 2>/dev/null >/dev/null ; then
+print_command_path()
+{
+    a= type -fpP -- "$1" 2>/dev/null
+}
+elif a= which which 2>/dev/null >/dev/null ; then
+    # the best case if we have which command (other ways needs checking)
+    # TODO: don't use which at all, it is a binary, not builtin shell command
+print_command_path()
+{
+    a= which -- "$1" 2>/dev/null
+}
+else
+print_command_path()
+{
+    a= type "$1" 2>/dev/null | sed -e 's|.* /|/|'
+}
 fi
 
-if [ "$1" = "--installed" ] ; then
-    epm installed $PKGNAME
-    exit
-fi
+# check if <arg> is a real command
+is_command()
+{
+    print_command_path "$1" >/dev/null
+}
+
+# add to all epm calls
+#EPM="$(epm tool which epm)" || fatal
+EPM="$(print_command_path epm)" || fatal
+epm()
+{
+    #if [ "$1" = "tool" ] ; then
+    #    __showcmd_shifted 1 "$@"
+    if [ "$1" != "print" ] && [ "$1" != "tool" ] && [ "$1" != "status" ] ; then
+        showcmd "$(basename $EPM) $*"
+    fi
+    $EPM "$@"
+}
+
+. $(dirname $0)/common-outformat.sh
 
+check_tty
 
 if [ -n "$DESCRIPTION" ] ; then
     [ "$1" != "--run" ] && echo "$DESCRIPTION" && exit