path: root/dist-check.mk

# Most of this is probably too coreutils-centric to be useful to other packages.

bin=bin-$$$$

write_loser = printf '\#!%s\necho $$0: bad path 1>&2; exit 1\n' '$(SHELL)'

TMPDIR ?= /tmp
t=$(TMPDIR)/$(PACKAGE)/test
pfx=$(t)/i

# More than once, tainted build and source directory names would
# have caused at least one "make check" test to apply "chmod 700"
# to all directories under $HOME.  Make sure it doesn't happen again.
tp := $(shell echo "$(TMPDIR)/$(PACKAGE)-$$$$")
t_prefix = $(tp)/a
t_taint = '$(t_prefix) b'
fake_home = $(tp)/home

# Ensure that tests run from tainted build and src dir names work,
# and don't affect anything in $HOME.  Create witness files in $HOME,
# record their attributes, and build/test.  Then ensure that the
# witnesses were not affected.
ALL_RECURSIVE_TARGETS += taint-distcheck
taint-distcheck: $(DIST_ARCHIVES)
        test -d $(t_taint) && chmod -R 700 $(t_taint) || :
        -rm -rf $(t_taint) $(fake_home)
        mkdir -p $(t_prefix) $(t_taint) $(fake_home)
        GZIP=$(GZIP_ENV) $(AMTAR) -C $(t_taint) -zxf $(distdir).tar.gz
        mkfifo $(fake_home)/fifo
        touch $(fake_home)/f
        mkdir -p $(fake_home)/d/e
        ls -lR $(fake_home) $(t_prefix) > $(tp)/.ls-before
        cd $(t_taint)/$(distdir)                        \
          && ./configure                                \
          && $(MAKE)                                    \
          && HOME=$(fake_home) $(MAKE) check            \
          && ls -lR $(fake_home) $(t_prefix) > $(tp)/.ls-after \
          && diff $(tp)/.ls-before $(tp)/.ls-after      \
          && test -d $(t_prefix)
        rm -rf $(tp)

# Verify that a twisted use of --program-transform-name=PROGRAM works.
define install-transform-check
  echo running install-transform-check                  \
    && rm -rf $(pfx)                                    \
    && $(MAKE) program_transform_name='s/.*/zyx/'       \
      prefix=$(pfx) install                             \
    && test "$$(echo $(pfx)/bin/*)" = "$(pfx)/bin/zyx"  \
    && test "$$(find $(pfx)/share/man -type f|sed 's,.*/,,;s,\..*,,')" = "zyx"
endef

# Install, then verify that all binaries and man pages are in place.
# Note that neither the binary, ginstall, nor the ].1 man page is installed.
define my-instcheck
  $(MAKE) prefix=$(pfx) install                         \
    && test ! -f $(pfx)/bin/ginstall                    \
    && { fail=0;                                        \
      for i in $(built_programs); do                    \
        test "$$i" = ginstall && i=install;             \
        for j in "$(pfx)/bin/$$i"                       \
                 "$(pfx)/share/man/man1/$$i.1"; do      \
          case $$j in *'[.1') continue;; esac;          \
          test -f "$$j" && :                            \
            || { echo "$$j not installed"; fail=1; };   \
        done;                                           \
      done;                                             \
      test $$fail = 1 && exit 1 || :;                   \
    }
endef

define coreutils-path-check
  {                                                     \
    if test -f $(srcdir)/src/true.c; then               \
      fail=1;                                           \
      mkdir $(bin)                                      \
        && ($(write_loser)) > $(bin)/loser              \
        && chmod a+x $(bin)/loser                       \
        && for i in $(built_programs); do               \
               case $$i in                              \
                 rm|expr|basename|echo|sort|ls|tr);;    \
                 cat|dirname|mv|wc);;                   \
                 *) ln $(bin)/loser $(bin)/$$i;;        \
               esac;                                    \
             done                                       \
          && ln -sf ../src/true $(bin)/false            \
          && PATH=`pwd`/$(bin)$(PATH_SEPARATOR)$$PATH   \
                $(MAKE) -C tests check                  \
          && { test -d gnulib-tests                     \
                 && $(MAKE) -C gnulib-tests check       \
                 || :; }                                \
          && rm -rf $(bin)                              \
          && fail=0;                                    \
    else                                                \
      fail=0;                                           \
    fi;                                                 \
    test $$fail = 1 && exit 1 || :;                     \
  }
endef

# Use -Wformat -Werror to detect format-string/arg-list mismatches.
# Also, check for shadowing problems with -Wshadow, and for pointer
# arithmetic problems with -Wpointer-arith.
# These CFLAGS are pretty strict.  If you build this target, you probably
# have to have a recent version of gcc and glibc headers.
# The hard-linking for-loop below ensures that there is a bin/ directory
# full of all of the programs under test (except the ones that are required
# for basic Makefile rules), all symlinked to the just-built "false" program.
# This is to ensure that if ever a test neglects to make PATH include
# the build srcdir, these always-failing programs will run.
# Otherwise, it is too easy to test the wrong programs.
# Note that "false" itself is a symlink to true, so it too will malfunction.
ALL_RECURSIVE_TARGETS += my-distcheck
my-distcheck: $(DIST_ARCHIVES) $(local-check)
        $(MAKE) syntax-check
        $(MAKE) check
        -rm -rf $(t)
        mkdir -p $(t)
        GZIP=$(GZIP_ENV) $(AMTAR) -C $(t) -zxf $(distdir).tar.gz
        cd $(t)/$(distdir)                              \
          && ./configure --enable-gcc-warnings --disable-nls \
          && $(MAKE) AM_MAKEFLAGS='$(null_AM_MAKEFLAGS)' \
          && $(MAKE) dvi                                \
          && $(install-transform-check)                 \
          && $(my-instcheck)                            \
          && $(coreutils-path-check)                    \
          && $(MAKE) distclean
        (cd $(t) && mv $(distdir) $(distdir).old        \
          && $(AMTAR) -zxf - ) < $(distdir).tar.gz
        diff -ur $(t)/$(distdir).old $(t)/$(distdir)
        -rm -rf $(t)
        @echo "========================"; \
        echo "$(distdir).tar.gz is ready for distribution"; \
        echo "========================"