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99 lines
3.2 KiB
Text
99 lines
3.2 KiB
Text
# ===========================================================================
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# http://www.gnu.org/software/autoconf-archive/ax_generate_changelog.html
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# ===========================================================================
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#
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# SYNOPSIS
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#
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# AX_GENERATE_CHANGELOG()
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#
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# DESCRIPTION
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#
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# Builds a rule for generating a ChangeLog file from version control
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# system commit messages. Currently, the only supported VCS is git, but
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# support for others could be added in future.
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#
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# Defines GENERATE_CHANGELOG_RULES which should be substituted in your
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# Makefile.
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#
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# Usage example:
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#
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# configure.ac:
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#
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# AX_GENERATE_CHANGELOG
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#
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# Makefile.am:
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#
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# @GENERATE_CHANGELOG_RULES@
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# CHANGELOG_START = 0.2.3^
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# dist-hook: dist-ChangeLog
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#
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# ChangeLog (stub committed to VCS):
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#
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# The ChangeLog is auto-generated when releasing.
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# If you are seeing this, use 'git log' for a detailed list of changes.
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#
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# This results in a "dist-ChangeLog" rule being added to the Makefile.
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# When run, "dist-ChangeLog" will generate a ChangeLog in the
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# $(top_distdir), using $(CHANGELOG_GIT_FLAGS) to format the output from
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# "git log" being run in $(CHANGELOG_GIT_DIR).
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#
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# Unless Automake is initialised with the 'foreign' option, a dummy
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# ChangeLog file must be committed to VCS in $(top_srcdir), containing the
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# text above (for example). It will be substituted by the automatically
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# generated ChangeLog during "make dist".
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#
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# LICENSE
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#
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# Copyright (c) 2015 David King <amigadave@amigadave.com>
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# Copyright (c) 2015 Philip Withnall <philip.withnall@collabora.co.uk>
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#
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# Copying and distribution of this file, with or without modification, are
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# permitted in any medium without royalty provided the copyright notice
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# and this notice are preserved. This file is offered as-is, without any
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# warranty.
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#serial 1
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AC_DEFUN([AX_GENERATE_CHANGELOG],[
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# Find git, defaulting to the 'missing' script so the user gets a nice
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# message if git is missing, rather than a plain 'command not found'.
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AC_PATH_PROG([GIT],[git],[${am_missing_run}git])
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AC_SUBST([GIT])
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# Build the ChangeLog rules.
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m4_pattern_allow([AM_V_GEN])
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GENERATE_CHANGELOG_RULES='
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# Generate ChangeLog
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#
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# Optional:
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# - CHANGELOG_START: git commit ID or tag name to output changelogs from
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# (exclusive). (Default: include all commits)
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# - CHANGELOG_GIT_FLAGS: General flags to pass to git-log when generating the
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# ChangeLog. (Default: various)
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# - CHANGELOG_GIT_DIR: .git directory to use. (Default: $(top_srcdir)/.git)
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# git-specific
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CHANGELOG_GIT_FLAGS ?= --stat -M -C --name-status --no-color
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CHANGELOG_GIT_DIR ?= $(top_srcdir)/.git
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ifeq ($(CHANGELOG_START),)
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CHANGELOG_GIT_RANGE =
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else
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CHANGELOG_GIT_RANGE = $(CHANGELOG_START)..
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endif
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# Generate a ChangeLog in $(top_distdir)
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dist-ChangeLog:
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$(AM_V_GEN)if $(GIT) \
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--git-dir=$(CHANGELOG_GIT_DIR) --work-tree=$(top_srcdir) log \
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$(CHANGELOG_GIT_FLAGS) $(CHANGELOG_GIT_RANGE) \
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| fmt --split-only >.ChangeLog.tmp; \
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then mv -f .ChangeLog.tmp "$(top_distdir)/ChangeLog"; \
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else rm -f .ChangeLog.tmp; exit 1; fi
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.PHONY: dist-ChangeLog
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'
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AC_SUBST([GENERATE_CHANGELOG_RULES])
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m4_ifdef([_AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE([GENERATE_CHANGELOG_RULES])])
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])
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