Makefile.sh

   1 # Makefile.sh - POSIX Makefile scripting adjunct for TopGit
   2 # Copyright (C) 2017 Kyle J. McKay
   3 # All rights reserved
   4 # License GPL2
   5
   6 # Set MAKEFILESH_DEBUG to get:
   7 #  1. All defined environment variales saved to Makefile.var
   8 #  2. set -x
   9 #  3. set -v if MAKEFILESH_DEBUG contains "v"
  10
  11 if [ -n "$MAKEFILESH_DEBUG" ]; then
  12         _setcmd="set -x"
  13         case "$MAKEFILESH_DEBUG" in *"v"*) _setcmd="set -vx"; esac
  14         eval "$_setcmd && unset _setcmd"
  15 fi
  16
  17 # prevent crazy "sh" implementations from exporting functions into environment
  18 set +a
  19
  20 # common defines for all makefile(s)
  21 defines() {
  22         POUND="#"
  23
  24         # Update if you add any code that requires a newer version of git
  25         : "${GIT_MINIMUM_VERSION:=1.9.2}"
  26
  27         # This avoids having this in no less than three different places!
  28         TG_STATUS_HELP_USAGE="st[atus] [-v] [--exit-code]"
  29
  30         # These are initialized here so config.sh or config.mak can change them
  31         # They are deliberately left with '$(...)' constructs for make to expand
  32         # so that if config.mak just sets prefix they all automatically change
  33         [ -n "$prefix"   ] || prefix="$HOME"
  34         [ -n "$bindir"   ] || bindir='$(prefix)/bin'
  35         [ -n "$cmddir"   ] || cmddir='$(prefix)/libexec/topgit'
  36         [ -n "$sharedir" ] || sharedir='$(prefix)/share/topgit'
  37         [ -n "$hooksdir" ] || hooksdir='$(cmddir)/hooks'
  38 }
  39
  40 # wrap it up for safe returns
  41 # "$@" is the current build target(s), if any
  42 makefile() {
  43
  44 v_wildcard commands_in 'tg-[!-]*.sh'
  45 v_wildcard utils_in    'tg--*.sh'
  46 v_wildcard awk_in      'awk/*.awk'
  47 v_wildcard hooks_in    'hooks/*.sh'
  48 v_wildcard helpers_in  't/helper/*.sh'
  49
  50 v_strip_sfx commands_out .sh  $commands_in
  51 v_strip_sfx utils_out    .sh  $utils_in
  52 v_strip_sfx awk_out      .awk $awk_in
  53 v_strip_sfx hooks_out    .sh  $hooks_in
  54 v_strip_sfx helpers_out  .sh  $helpers_in
  55
  56 v_stripadd_sfx help_out .sh .txt  tg-help.sh tg-status.sh $commands_in
  57 v_stripadd_sfx html_out .sh .html tg-help.sh tg-status.sh tg-tg.sh $commands_in
  58
  59 DEPFILE="Makefile.dep"
  60 {
  61         write_auto_deps '' '.sh' tg $commands_out $utils_out $hooks_out $helpers_out
  62         write_auto_deps '' '.awk' $awk_out
  63 } >"$DEPFILE"
  64
  65 : "${SHELL_PATH:=/bin/sh}" "${AWK_PATH:=awk}"
  66 version="$(
  67         test -d .git && git describe --match "topgit-[0-9]*" --abbrev=4 --dirty 2>/dev/null |
  68         sed -e 's/^topgit-//')" || :
  69
  70 # config.sh is wrapped up for return safety
  71 configsh
  72
  73 # config.sh may not unset these
  74 : "${SHELL_PATH:=/bin/sh}" "${AWK_PATH:=awk}"
  75
  76 case "$AWK_PATH" in */*) AWK_PREFIX=;; *) AWK_PREFIX="/usr/bin/"; esac
  77 quotevar SHELL_PATH SHELL_PATH_SQ
  78 quotevar AWK_PATH AWK_PATH_SQ
  79
  80 v_strip version "$version"
  81 version_arg=
  82 [ -z "$version" ] || version_arg="-e 's/TG_VERSION=.*/TG_VERSION=\"$version\"/'"
  83
  84 DESTDIRBOOL="No"
  85 [ -z "$DESTDIR" ] || DESTDIRBOOL="Yes"
  86
  87 [ -z "$MAKEFILESH_DEBUG" ] || {
  88         printenv | LC_ALL=C grep '^[_A-Za-z][_A-Za-z0-9]*=' | LC_ALL=C sort
  89 } >"Makefile.var"
  90
  91 # Force TG-BUILD-SETTINGS to be updated now if needed
  92 ${MAKE:-make} ${GNO_PD_OPT} -e -f Makefile.mak FORCE_SETTINGS_BUILD=FORCE TG-BUILD-SETTINGS
  93
  94 # end of wrapper
  95 }
  96
  97 ##
  98 ## Run "makefile" now unless MKTOP is set
  99 ##
 100
 101 set -ea
 102 defines
 103 test -n "$MKTOP" || {
 104         . ./gnomake.sh &&
 105         set_gno_pd_opt &&
 106         makefile "$@"
 107 }