include/Makefile.am

   1 ## SPDX-License-Identifier: GPL-2.0-only
   2 ##
   3 ## This target generates an include file that contains the git version
   4 ## string of the current branch, it must be continuously updated when
   5 ## we build in the git repo and shipped in dist tarballs to reflect the
   6 ## status of the tree when it was generated. If the tree is clean and
   7 ## the current commit is tag a starting with "v", consider this a
   8 ## release version and set an empty git version.
   9 ##
  10 ## Here is what the inline script does:
  11 ##
  12 ## First, delete any stale "version.i.tmp" file.
  13 ##
  14 ## If "bootstrap" and ".git" exists in the top source directory and the git
  15 ## executable is available, get the current git version string in the form:
  16 ##
  17 ##  "latest_tag"(-"number_of_commits_on_top")(-g"latest_commit_hash")(-dirty)
  18 ##
  19 ## And store it in "version.i.tmp", if the current commit is tagged, the tag
  20 ## starts with "v" and the tree is clean, consider this a release version and
  21 ## overwrite the git version with an empty string in "version.i.tmp".
  22 ##
  23 ## If we don't have a "version.i.tmp" nor a "version.i", generate an empty
  24 ## string as a failover. If a "version.i" is present, for example when building
  25 ## from a distribution tarball, get the git_version using grep.
  26 ##
  27 ## Fetch the EXTRA_VERSION_NAME define from "version/extra_version_name" and output it
  28 ## to "version.i.tmp".
  29 ##
  30 ## Fetch the EXTRA_VERSION_DESCRIPTION define from "version/extra_version_description",
  31 ## sanitize and format it with a sed script to replace all non-alpha-numeric values
  32 ## with "-" and join all lines by replacing "\n" with litteral string c-style "\n\t" and
  33 ## output it to "version.i.tmp".
  34 ##
  35 ## Repeat the same logic for the "version/extra_patches" directory.
  36 ## Data fetched from "version/extra_patches" must be sanitized and
  37 ## formatted.
  38 ## The data is fetched using "ls" with an ignore pattern for the README file.
  39 ## The sanitize step uses sed with a script to replace all
  40 ## non-alpha-numeric values, except " " (space), to "-".
  41 ## The formatting step uses sed with a script to join all lines
  42 ## by replacing "\n" with litteral string c-style "\n\t".
  43 ##
  44 ## If we don't have a "version.i" or we have both files (version.i, version.i.tmp)
  45 ## and they are different, copy "version.i.tmp" over "version.i".
  46 ## This way the dependent targets are only rebuilt when the git version
  47 ## string or either one of extra version string change.
  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         $(version_verbose)rm -f version.i.tmp; \
  55         if (test ! -f version.i && test -f "$(top_srcdir)/include/version.i"); then \
  56                 cp "$(top_srcdir)/include/version.i" version.i; \
  57         fi; \
  58         if (test -r "$(top_srcdir)/bootstrap" && test -r "$(top_srcdir)/.git") && \
  59                         test -x "`which git 2>&1;true`"; then \
  60                 GIT_VERSION_STR="`cd "$(top_srcdir)" && git describe --tags --dirty`"; \
  61                 GIT_CURRENT_TAG="`cd "$(top_srcdir)" && git describe --tags --exact-match --match="v[0-9]*" HEAD 2> /dev/null`"; \
  62                 echo "#define GIT_VERSION \"$$GIT_VERSION_STR\"" > version.i.tmp; \
  63                 if ! $(GREP) -- "-dirty" version.i.tmp > /dev/null && \
  64                                 test "x$$GIT_CURRENT_TAG" != "x"; then \
  65                         echo "#define GIT_VERSION \"\"" > version.i.tmp; \
  66                 fi; \
  67         fi; \
  68         if test ! -f version.i.tmp; then \
  69                 if test -f version.i; then \
  70                         $(GREP) "^#define \bGIT_VERSION\b.*" version.i > version.i.tmp; \
  71                 else \
  72                         echo '#define GIT_VERSION ""' > version.i.tmp; \
  73                 fi; \
  74         fi; \
  75         echo "#define EXTRA_VERSION_NAME \"`$(SED) -n '1p' "$(top_srcdir)/version/extra_version_name" 2> /dev/null`\"" >> version.i.tmp; \
  76         echo "#define EXTRA_VERSION_DESCRIPTION \"`$(SED) -E ':a ; N ; $$!ba ; s/[^a-zA-Z0-9 \n\t\.,]/-/g ; s/\r{0,1}\n/\\\n\\\t/g' "$(top_srcdir)/version/extra_version_description" 2> /dev/null`\"" >> version.i.tmp; \
  77         echo "#define EXTRA_VERSION_PATCHES \"`ls --ignore='README' -1 "$(top_srcdir)/version/extra_patches" | $(SED) -E ':a ; N ; $$!ba ; s/[^a-zA-Z0-9 \n\t\.]/-/g ; s/\r{0,1}\n/\\\n\\\t/g' 2> /dev/null`\"" >> version.i.tmp; \
  78         if test ! -f version.i || \
  79                         test x"`cat version.i.tmp`" != x"`cat version.i`"; then \
  80                 mv version.i.tmp version.i; \
  81         fi; \
  82         rm -f version.i.tmp; \
  83         true
  84
  85 ##
  86 ## version.i is defined as a .PHONY target even if it's a real file,
  87 ## we want the target to be re-run on every make.
  88 ##
  89 .PHONY: version.i
  90
  91 CLEANFILES = version.i.tmp
  92
  93 ##
  94 ## Only clean "version.i" on dist-clean, we need to keep it on regular
  95 ## clean when it's part of a dist tarball.
  96 ##
  97 DISTCLEANFILES = version.i
  98
  99 lttnginclude_HEADERS = \
 100         lttng/health.h \
 101         lttng/lttng.h \
 102         lttng/constant.h \
 103         lttng/channel.h \
 104         lttng/domain.h \
 105         lttng/event.h \
 106         lttng/handle.h \
 107         lttng/session.h \
 108         lttng/lttng-error.h \
 109         lttng/snapshot.h \
 110         lttng/save.h \
 111         lttng/load.h \
 112         lttng/endpoint.h \
 113         lttng/rotation.h \
 114         lttng/location.h \
 115         lttng/userspace-probe.h \
 116         lttng/session-descriptor.h \
 117         lttng/destruction-handle.h \
 118         lttng/clear.h \
 119         lttng/clear-handle.h \
 120         lttng/tracker.h
 121
 122 lttngactioninclude_HEADERS= \
 123         lttng/action/action.h \
 124         lttng/action/notify.h
 125
 126 lttngconditioninclude_HEADERS= \
 127         lttng/condition/condition.h \
 128         lttng/condition/buffer-usage.h \
 129         lttng/condition/session-consumed-size.h \
 130         lttng/condition/session-rotation.h \
 131         lttng/condition/evaluation.h
 132
 133 lttngnotificationinclude_HEADERS= \
 134         lttng/notification/channel.h \
 135         lttng/notification/notification.h
 136
 137 lttngtriggerinclude_HEADERS= \
 138         lttng/trigger/trigger.h
 139
 140 noinst_HEADERS = \
 141         lttng/snapshot-internal.h \
 142         lttng/health-internal.h \
 143         lttng/save-internal.h \
 144         lttng/load-internal.h \
 145         lttng/action/action-internal.h \
 146         lttng/action/notify-internal.h \
 147         lttng/condition/condition-internal.h \
 148         lttng/condition/buffer-usage-internal.h \
 149         lttng/condition/session-consumed-size-internal.h \
 150         lttng/condition/evaluation-internal.h \
 151         lttng/condition/session-rotation-internal.h \
 152         lttng/notification/notification-internal.h \
 153         lttng/trigger/trigger-internal.h \
 154         lttng/endpoint-internal.h \
 155         lttng/notification/channel-internal.h \
 156         lttng/channel-internal.h \
 157         lttng/event-internal.h \
 158         lttng/rotate-internal.h \
 159         lttng/ref-internal.h \
 160         lttng/location-internal.h \
 161         lttng/userspace-probe-internal.h \
 162         lttng/session-internal.h \
 163         lttng/session-descriptor-internal.h \
 164         version.h \
 165         version.i