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         logging.c \
  11         logging.h
  12
  13 noinst_HEADERS = \
  14         align.h \
  15         list.h \
  16         macros.h \
  17         mmap-align.h \
  18         safe.h \
  19         version.h \
  20         version.i
  21
  22 ##
  23 ## This target generates an include file that contains the git version
  24 ## string of the current branch, it must be continuously updated when
  25 ## we build in the git repo and shipped in dist tarballs to reflect the
  26 ## status of the tree when it was generated. If the tree is clean and
  27 ## the current commit is tag a starting with "v", consider this a
  28 ## release version and set an empty git version.
  29 ##
  30 ## Here is what the inline script does:
  31 ##
  32 ## First, delete any stale "version.i.tmp" file.
  33 ##
  34 ## If "bootstrap" and ".git" exists in the top source directory and the git
  35 ## executable is available, get the current git version string in the form:
  36 ##
  37 ##  "latest_tag"(-"number_of_commits_on_top")(-g"latest_commit_hash")(-dirty)
  38 ##
  39 ## And store it in "version.i.tmp", if the current commit is tagged, the tag
  40 ## starts with "v" and the tree is clean, consider this a release version and
  41 ## overwrite the git version with an empty string in "version.i.tmp".
  42 ##
  43 ## If we don't have a "version.i.tmp" nor a "version.i", generate an empty
  44 ## string as a failover.
  45 ##
  46 ## If we don't have a "version.i" or we have both files and they are different,
  47 ## copy "version.i.tmp" over "version.i". This way the dependent targets are
  48 ## only rebuilt when the version string changes.
  49 ##
  50
  51 version_verbose = $(version_verbose_@AM_V@)
  52 version_verbose_ = $(version_verbose_@AM_DEFAULT_V@)
  53 version_verbose_0 = @echo "  GEN     " $@;
  54
  55 version.i:
  56         $(version_verbose)rm -f version.i.tmp; \
  57         if (test -r "$(top_srcdir)/bootstrap" && test -r "$(top_srcdir)/.git") && \
  58                         test -x "`which git 2>&1;true`"; then \
  59                 GIT_VERSION_STR="`cd "$(top_srcdir)" && git describe --tags --dirty`"; \
  60                 GIT_CURRENT_TAG="`cd "$(top_srcdir)" && git describe --tags --exact-match --match="v[0-9]*" HEAD 2> /dev/null`"; \
  61                 echo "#define GIT_VERSION \"$$GIT_VERSION_STR\"" > version.i.tmp; \
  62                 if ! $(GREP) -- "-dirty" version.i.tmp > /dev/null && \
  63                                 test "x$$GIT_CURRENT_TAG" != "x"; then \
  64                         echo "#define GIT_VERSION \"\"" > version.i.tmp; \
  65                 fi; \
  66         fi; \
  67         if test ! -f version.i.tmp; then \
  68                 if test ! -f version.i; then \
  69                         echo '#define GIT_VERSION ""' > version.i; \
  70                 fi; \
  71         elif test ! -f version.i || \
  72                         test x"`cat version.i.tmp`" != x"`cat version.i`"; then \
  73                 mv version.i.tmp version.i; \
  74         fi; \
  75         rm -f version.i.tmp; \
  76         true
  77
  78 ##
  79 ## version.i is defined as a .PHONY target even if it's a real file,
  80 ## we want the target to be re-run on every make.
  81 ##
  82 .PHONY: version.i
  83
  84 CLEANFILES = version.i.tmp
  85
  86 ##
  87 ## Only clean "version.i" on dist-clean, we need to keep it on regular
  88 ## clean when it's part of a dist tarball.
  89 ##
  90 DISTCLEANFILES = version.i