1 # SPDX-License-Identifier: MIT
3 AM_CPPFLAGS += -DBABELTRACE_PLUGINS_DIR=\"$(BABELTRACE_PLUGINS_DIR)\"
5 noinst_LTLIBRARIES = libbabeltrace2-common.la
7 libbabeltrace2_common_la_SOURCES = \
22 # The following section is based on a similar feature in LTTng-tools.
25 ## This target generates an include file that contains the git version
26 ## string of the current branch, it must be continuously updated when
27 ## we build in the git repo and shipped in dist tarballs to reflect the
28 ## status of the tree when it was generated. If the tree is clean and
29 ## the current commit is tag a starting with "v", consider this a
30 ## release version and set an empty git version.
32 ## Here is what the inline script does:
34 ## First, delete any stale "version.i.tmp" file.
36 ## If "bootstrap" and ".git" exists in the top source directory and the git
37 ## executable is available, get the current git version string in the form:
39 ## "latest_tag"(-"number_of_commits_on_top")(-g"latest_commit_hash")(-dirty)
41 ## And store it in "version.i.tmp", if the current commit is tagged, the tag
42 ## starts with "v" and the tree is clean, consider this a release version and
43 ## overwrite the git version with an empty string in "version.i.tmp".
45 ## If we don't have a "version.i.tmp" nor a "version.i", generate an empty
46 ## string as a failover. If a "version.i" is present, for example when building
47 ## from a distribution tarball, get the git_version using grep.
49 ## Fetch the BT_VERSION_EXTRA_NAME define from "version/extra_version_name" and output it
50 ## to "version.i.tmp".
52 ## Fetch the BT_VERSION_EXTRA_DESCRIPTION define from "version/extra_version_description",
53 ## sanitize and format it with a sed script to replace all non-alpha-numeric values
54 ## with "-" and join all lines by replacing "\n" with litteral string c-style "\n" and
55 ## output it to "version.i.tmp".
57 ## Repeat the same logic for the "version/extra_patches" directory.
58 ## Data fetched from "version/extra_patches" must be sanitized and
60 ## The data is fetched using "ls" with an ignore pattern for the README.adoc file.
61 ## The sanitize step uses sed with a script to replace all
62 ## non-alpha-numeric values, except " " (space), to "-".
63 ## The formatting step uses sed with a script to join all lines
64 ## by replacing "\n" with litteral string c-style "\n".
66 ## If we don't have a "version.i" or we have both files (version.i, version.i.tmp)
67 ## and they are different, copy "version.i.tmp" over "version.i".
68 ## This way the dependent targets are only rebuilt when the git version
69 ## string or either one of extra version string change.
71 version_verbose = $(version_verbose_@AM_V@)
72 version_verbose_ = $(version_verbose_@AM_DEFAULT_V@)
73 version_verbose_0 = @echo " GEN " $@;
76 $(version_verbose)rm -f version.i.tmp; \
77 if (test ! -f version.i && test -f "$(top_srcdir)/include/version.i"); then \
78 cp "$(top_srcdir)/include/version.i" version.i; \
80 if (test -r "$(top_srcdir)/bootstrap" && test -r "$(top_srcdir)/.git") && \
81 test -x "`which git 2>&1;true`"; then \
82 GIT_VERSION_STR="`cd "$(top_srcdir)" && git describe --tags --dirty`"; \
83 GIT_CURRENT_TAG="`cd "$(top_srcdir)" && git describe --tags --exact-match --match="v[0-9]*" HEAD 2> /dev/null`"; \
84 echo "#define BT_VERSION_GIT \"$$GIT_VERSION_STR\"" > version.i.tmp; \
85 if ! $(GREP) -- "-dirty" version.i.tmp > /dev/null && \
86 test "x$$GIT_CURRENT_TAG" != "x"; then \
87 echo "#define BT_VERSION_GIT \"\"" > version.i.tmp; \
90 if test ! -f version.i.tmp; then \
91 if test -f version.i; then \
92 $(GREP) "^#define \bBT_VERSION_GIT\b.*" version.i > version.i.tmp; \
94 echo '#define BT_VERSION_GIT ""' > version.i.tmp; \
97 echo "#define BT_VERSION_EXTRA_NAME \"`$(SED) -n '1p' "$(top_srcdir)/version/extra_version_name" 2> /dev/null`\"" >> version.i.tmp; \
98 echo "#define BT_VERSION_EXTRA_DESCRIPTION \"`$(SED) -E ':a ; N ; $$!ba ; s/[^a-zA-Z0-9 \n\t\.,]/-/g ; s/\r{0,1}\n/\\\n/g' "$(top_srcdir)/version/extra_version_description" 2> /dev/null`\"" >> version.i.tmp; \
99 echo "#define BT_VERSION_EXTRA_PATCHES \"`ls -1 "$(top_srcdir)/version/extra_patches" | $(GREP) -v '^README.adoc' | $(SED) -E ':a ; N ; $$!ba ; s/[^a-zA-Z0-9 \n\t\.]/-/g ; s/\r{0,1}\n/\\\n/g' 2> /dev/null`\"" >> version.i.tmp; \
100 if test ! -f version.i || \
101 test x"`cat version.i.tmp`" != x"`cat version.i`"; then \
102 mv version.i.tmp version.i; \
104 rm -f version.i.tmp; \
108 ## version.i is defined as a .PHONY target even if it's a real file,
109 ## we want the target to be re-run on every make.
113 CLEANFILES = version.i.tmp
116 ## Only clean "version.i" on dist-clean, we need to keep it on regular
117 ## clean when it's part of a dist tarball.
119 DISTCLEANFILES = version.i
121 noinst_HEADERS += version.h version.i