Makefile

   1 # NOTE: Requires GNU make
   2
   3 all::
   4
   5 # This should give a reasonable hint that GNU make is required in non-GNU make
   6 .error GNU_make_is_required:
   7
   8 # This should be fatal in non-GNU make
   9 export MAKE
  10
  11 # Update if you add any code that requires a newer version of git
  12 GIT_MINIMUM_VERSION ?= 1.8.5
  13
  14 # This avoids having this in no less than three different places!
  15 TG_STATUS_HELP_USAGE = st[atus] [-v] [--exit-code]
  16 export TG_STATUS_HELP_USAGE
  17
  18 prefix ?= $(HOME)
  19 bindir = $(prefix)/bin
  20 cmddir = $(prefix)/libexec/topgit
  21 sharedir = $(prefix)/share/topgit
  22 hooksdir = $(cmddir)/hooks
  23
  24 commands_in := $(wildcard tg-[!-]*.sh)
  25 utils_in := $(wildcard tg--*.sh)
  26 awk_in := $(wildcard awk/*.awk)
  27 hooks_in = hooks/pre-commit.sh
  28 helpers_in = $(wildcard t/helper/*.sh)
  29
  30 commands_out = $(patsubst %.sh,%,$(commands_in))
  31 utils_out = $(patsubst %.sh,%,$(utils_in))
  32 awk_out = $(patsubst %.awk,%,$(awk_in))
  33 hooks_out = $(patsubst %.sh,%,$(hooks_in))
  34 helpers_out = $(patsubst %.sh,%,$(helpers_in))
  35 PROGRAMS = $(commands_out) $(utils_out)
  36 help_out = $(patsubst %.sh,%.txt,tg-help.sh tg-status.sh $(commands_in))
  37 html_out = $(patsubst %.sh,%.html,tg-help.sh tg-status.sh tg-tg.sh $(commands_in))
  38
  39 SHELL_PATH ?= /bin/sh
  40 SHELL_PATH_SQ = $(subst ','\'',$(SHELL_PATH))
  41
  42 AWK_PATH ?= awk
  43 AWK_PATH_SQ = $(subst ','\'',$(AWK_PATH))
  44
  45 version := $(shell test -d .git && git describe --match "topgit-[0-9]*" --abbrev=4 --dirty 2>/dev/null | sed -e 's/^topgit-//' )
  46
  47 -include config.mak
  48 SHELL = $(SHELL_PATH)
  49 ifeq ($(subst /,,$(AWK_PATH)),$(AWK_PATH))
  50 AWK_PREFIX = /usr/bin/
  51 else
  52 AWK_PREFIX =
  53 endif
  54
  55 ifneq ($(strip $(version)),)
  56         version_arg = -e s/TG_VERSION=.*/TG_VERSION=$(version)/
  57 endif
  58
  59 .PHONY: FORCE
  60
  61 all::   shell_compatibility_test precheck $(commands_out) $(utils_out) $(awk_out) $(hooks_out) $(helpers_out) bin-wrappers/tg $(help_out) tg-tg.txt
  62
  63 please_set_SHELL_PATH_to_a_more_modern_shell:
  64         @$$(:)
  65
  66 shell_compatibility_test: please_set_SHELL_PATH_to_a_more_modern_shell
  67
  68 define POUND
  69 #
  70 endef
  71 AT = @
  72 Q_ = $(AT)
  73 Q_0 = $(Q_)
  74 Q = $(Q_$(V))
  75 QSED_ = $(AT)echo "[SED] $@" &&
  76 QSED_0 = $(QSED_)
  77 QSED = $(QSED_$(V))
  78 QHELP_ = $(AT)CMD="$@" CMD="$${CMD$(POUND)tg-}" && echo "[HELP] $${CMD%.txt}" &&
  79 QHELP_0 = $(QHELP_)
  80 QHELP = $(QHELP_$(V))
  81 QHELPTG_ = $(AT)echo "[HELP] tg" &&
  82 QHELPTG_0 = $(QHELPTG_)
  83 QHELPTG = $(QHELPTG_$(V))
  84 QHTML_ = $(AT)CMD="$@" CMD="$${CMD$(POUND)tg-}" && echo "[HTML] $${CMD%.html}" &&
  85 QHTML_0 = $(QHTML_)
  86 QHTML = $(QHTML_$(V))
  87 QHTMLTOPGIT_ = $(AT)echo "[HTML] topgit" &&
  88 QHTMLTOPGIT_0 = $(QHTMLTOPGIT_)
  89 QHTMLTOPGIT = $(QHTMLTOPGIT_$(V))
  90 QWRAPPER_ = $(AT)echo "[WRAPPER] $@" &&
  91 QWRAPPER_0 = $(QWRAPPER_)
  92 QWRAPPER = $(QWRAPPER_$(V))
  93
  94 tg $(commands_out) $(utils_out) $(hooks_out) $(helpers_out): % : %.sh Makefile TG-BUILD-SETTINGS
  95         $(QSED)sed \
  96                 -e '1s|#!.*/sh|#!$(SHELL_PATH_SQ)|' \
  97                 -e '1s|#!.*/awk|#!$(AWK_PREFIX)$(AWK_PATH_SQ)|' \
  98                 -e 's#@cmddir@#$(cmddir)#g;' \
  99                 -e 's#@hooksdir@#$(hooksdir)#g' \
 100                 -e 's#@bindir@#$(bindir)#g' \
 101                 -e 's#@sharedir@#$(sharedir)#g' \
 102                 -e 's#@mingitver@#$(GIT_MINIMUM_VERSION)#g' \
 103                 -e 's#@tgsthelpusage@#$(TG_STATUS_HELP_USAGE)#g' \
 104                 -e 's#@SHELL_PATH@#$(SHELL_PATH_SQ)#g' \
 105                 -e 's#@AWK_PATH@#$(AWK_PATH_SQ)#g' \
 106                 $(version_arg) \
 107                 $@.sh >$@+ && \
 108         chmod +x $@+ && \
 109         mv $@+ $@
 110
 111 tg--awksome : $(awk_out)
 112 $(awk_out): % : %.awk Makefile TG-BUILD-SETTINGS
 113         $(QSED)sed \
 114                 -e '1s|#!.*/awk|#!$(AWK_PREFIX)$(AWK_PATH_SQ)|' \
 115                 $@.awk >$@+ && \
 116         chmod +x $@+ && \
 117         mv $@+ $@
 118
 119 bin-wrappers/tg : $(commands_out) $(utils_out) $(awk_out) $(hooks_out) $(helpers_out) tg
 120         $(QWRAPPER){ [ -d bin-wrappers ] || mkdir bin-wrappers; } && \
 121         echo '#!$(SHELL_PATH_SQ)' >"$@" && \
 122         curdir="$$(pwd -P)" && \
 123         echo "TG_INST_CMDDIR='$$curdir' && export TG_INST_CMDDIR" >>"$@" && \
 124         echo "TG_INST_SHAREDIR='$$curdir' && export TG_INST_SHAREDIR" >>"$@" && \
 125         echo "TG_INST_HOOKSDIR='$$curdir' && export TG_INST_HOOKSDIR" >>"$@" && \
 126         echo '[ -n "$$tg__include" ] || exec $(SHELL_PATH_SQ) -c '\''. "$$TG_INST_CMDDIR/tg"'\'' tg "$$@" || exit' >>"$@" && \
 127         echo ". '$$curdir/tg'" >>"$@" && \
 128         chmod a+x "$@"
 129
 130 $(help_out): README create-help.sh
 131         $(QHELP)CMD="$@" CMD="$${CMD#tg-}" CMD="$${CMD%.txt}" && \
 132         $(SHELL_PATH) ./create-help.sh "$$CMD"
 133
 134 .PHONY: doc install-doc html
 135
 136 doc:: html
 137
 138 install-doc:: install-html
 139
 140 html:: topgit.html $(html_out)
 141
 142 tg-tg.txt: README create-html-usage.pl $(commands_in)
 143         $(QHELPTG)perl ./create-html-usage.pl --text < README > $@
 144
 145 topgit.html: README create-html-usage.pl $(commands_in)
 146         $(QHTMLTOPGIT)perl ./create-html-usage.pl < README | rst2html.py - $@
 147
 148 $(html_out): create-html.sh
 149         $(QHTML)CMD="$@" CMD="$${CMD#tg-}" CMD="$${CMD%.html}" && \
 150         $(SHELL_PATH) ./create-html.sh "$$CMD"
 151
 152 .PHONY: precheck
 153
 154 precheck:: tg
 155 ifeq ($(DESTDIR),)
 156         $(Q)./$+ precheck
 157 else
 158         $(Q)echo skipping precheck because DESTDIR is set
 159 endif
 160
 161 .PHONY: install
 162
 163 install:: all
 164         install -d -m 755 "$(DESTDIR)$(bindir)"
 165         install tg "$(DESTDIR)$(bindir)"
 166         install -d -m 755 "$(DESTDIR)$(cmddir)"
 167         install $(commands_out) $(utils_out) "$(DESTDIR)$(cmddir)"
 168         install -d -m 755 "$(DESTDIR)$(cmddir)/awk"
 169         install $(awk_out) "$(DESTDIR)$(cmddir)/awk"
 170         install -d -m 755 "$(DESTDIR)$(hooksdir)"
 171         install $(hooks_out) "$(DESTDIR)$(hooksdir)"
 172         install -d -m 755 "$(DESTDIR)$(sharedir)"
 173         install -m 644 $(help_out) tg-tg.txt "$(DESTDIR)$(sharedir)"
 174         install -m 644 leaves.awk "$(DESTDIR)$(sharedir)"
 175
 176 .PHONY: install-html
 177
 178 install-html:: html
 179         install -d -m 755 "$(DESTDIR)$(sharedir)"
 180         install -m 644 topgit.html $(html_out) "$(DESTDIR)$(sharedir)"
 181
 182 .PHONY: clean
 183
 184 clean::
 185         rm -f tg $(commands_out) $(utils_out) $(awk_out) $(hooks_out) $(helpers_out) $(help_out) tg-tg.txt topgit.html $(html_out)
 186         rm -f TG-BUILD-SETTINGS
 187         rm -rf bin-wrappers
 188         +$(Q)$(MAKE) -C t clean
 189
 190 define BUILD_SETTINGS
 191 TG_INST_BINDIR='$(bindir)'
 192 TG_INST_CMDDIR='$(cmddir)'
 193 TG_INST_HOOKSDIR='$(hooksdir)'
 194 TG_INST_SHAREDIR='$(sharedir)'
 195 SHELL_PATH='$(SHELL_PATH)'
 196 TG_VERSION='$(version)'
 197 TG_GIT_MINIMUM_VERSION='$(GIT_MINIMUM_VERSION)'
 198 endef
 199 export BUILD_SETTINGS
 200
 201 TG-BUILD-SETTINGS: FORCE
 202         $(Q)if test x"$$BUILD_SETTINGS" != x"`cat $@ 2>/dev/null`"; then \
 203                 echo "* new build settings"; \
 204                 echo "$$BUILD_SETTINGS" >$@; \
 205         fi
 206
 207 test:: all
 208         +$(Q)$(MAKE) -C t all