src/common/Makefile.am

   1 AM_CPPFLAGS += -DINSTALL_LIBDIR=\"$(libdir)\"
   2
   3 noinst_LTLIBRARIES = libbabeltrace2-common.la
   4
   5 libbabeltrace2_common_la_SOURCES = \
   6         assert.h \
   7         assert.c \
   8         common.c \
   9         common.h
  10
  11 noinst_HEADERS = \
  12         align.h \
  13         list.h \
  14         macros.h \
  15         mmap-align.h \
  16         safe.h \
  17         version.h \
  18         version.i
  19
  20 ##
  21 ## This target generates an include file that contains the git version
  22 ## string of the current branch, it must be continuously updated when
  23 ## we build in the git repo and shipped in dist tarballs to reflect the
  24 ## status of the tree when it was generated. If the tree is clean and
  25 ## the current commit is tag a starting with "v", consider this a
  26 ## release version and set an empty git version.
  27 ##
  28 ## Here is what the inline script does:
  29 ##
  30 ## First, delete any stale "version.i.tmp" file.
  31 ##
  32 ## If "bootstrap" and ".git" exists in the top source directory and the git
  33 ## executable is available, get the current git version string in the form:
  34 ##
  35 ##  "latest_tag"(-"number_of_commits_on_top")(-g"latest_commit_hash")(-dirty)
  36 ##
  37 ## And store it in "version.i.tmp", if the current commit is tagged, the tag
  38 ## starts with "v" and the tree is clean, consider this a release version and
  39 ## overwrite the git version with an empty string in "version.i.tmp".
  40 ##
  41 ## If we don't have a "version.i.tmp" nor a "version.i", generate an empty
  42 ## string as a failover.
  43 ##
  44 ## If we don't have a "version.i" or we have both files and they are different,
  45 ## copy "version.i.tmp" over "version.i". This way the dependent targets are
  46 ## only rebuilt when the version string changes.
  47 ##
  48
  49 version_verbose = $(version_verbose_@AM_V@)
  50 version_verbose_ = $(version_verbose_@AM_DEFAULT_V@)
  51 version_verbose_0 = @echo "  GEN     " $@;
  52
  53 version.i:
  54         $(version_verbose)rm -f version.i.tmp; \
  55         if (test -r "$(top_srcdir)/bootstrap" && test -r "$(top_srcdir)/.git") && \
  56                         test -x "`which git 2>&1;true`"; then \
  57                 GIT_VERSION_STR="`cd "$(top_srcdir)" && git describe --tags --dirty`"; \
  58                 GIT_CURRENT_TAG="`cd "$(top_srcdir)" && git describe --tags --exact-match --match="v[0-9]*" HEAD 2> /dev/null`"; \
  59                 echo "#define GIT_VERSION \"$$GIT_VERSION_STR\"" > version.i.tmp; \
  60                 if ! $(GREP) -- "-dirty" version.i.tmp > /dev/null && \
  61                                 test "x$$GIT_CURRENT_TAG" != "x"; then \
  62                         echo "#define GIT_VERSION \"\"" > version.i.tmp; \
  63                 fi; \
  64         fi; \
  65         if test ! -f version.i.tmp; then \
  66                 if test ! -f version.i; then \
  67                         echo '#define GIT_VERSION ""' > version.i; \
  68                 fi; \
  69         elif test ! -f version.i || \
  70                         test x"`cat version.i.tmp`" != x"`cat version.i`"; then \
  71                 mv version.i.tmp version.i; \
  72         fi; \
  73         rm -f version.i.tmp; \
  74         true
  75
  76 ##
  77 ## version.i is defined as a .PHONY target even if it's a real file,
  78 ## we want the target to be re-run on every make.
  79 ##
  80 .PHONY: version.i
  81
  82 CLEANFILES = version.i.tmp
  83
  84 ##
  85 ## Only clean "version.i" on dist-clean, we need to keep it on regular
  86 ## clean when it's part of a dist tarball.
  87 ##
  88 DISTCLEANFILES = version.i