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maint: split long lines for BSD syntax-check
Similar to the gnulib changes we just incorporated into maint.mk, it's time to use '$(VC_LIST) | xargs program' instead of 'program $$($(VC_LIST))', in order to bypass the problem of hitting argv limits due to our large set of files. Drop several uses of $$files as a temporary variable when we can instead directly use xargs. While at it, fix a typo in the prohibit_windows_special_chars error message. Note that 'grep $pattern $(generate list)' has be be rewritten as 'generate list | xargs grep $pattern /dev/null' - this is because for a list that is just long enough, and without /dev/null, xargs could make a worst-case split of 'grep $pattern all but one; grep $pattern last' which has different output (grep includes the filename when there was more than one file, but omits it for a single file), while our conversion gives 'grep $pattern /dev/null all but one; grep $pattern /dev/null last'. We are less concerned about the empty list case (why would we run the syntax check if we didn't have at least one file?), but grepping /dev/null happens to produce no output and thus nicely also solves that problem without relying on the GNU extension of 'xargs -r'. Signed-off-by: Eric Blake <eblake@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
This commit is contained in:
Eric Blake
parent
2e258dae61
commit
ab51b22c07
75
cfg.mk
75
cfg.mk
@ -639,8 +639,10 @@ sc_libvirt_unmarked_diagnostics:
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exclude='_\(' \
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halt='found unmarked diagnostic(s)' \
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$(_sc_search_regexp)
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@{ $(GREP) -nE '\<$(func_re) *\(.*;$$' $$($(VC_LIST_EXCEPT)); \
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$(GREP) -A1 -nE '\<$(func_re) *\(.*,$$' $$($(VC_LIST_EXCEPT)); } \
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@{ $(VC_LIST_EXCEPT) | xargs \
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$(GREP) -nE '\<$(func_re) *\(.*;$$' /dev/null; \
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$(VC_LIST_EXCEPT) | xargs \
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$(GREP) -A1 -nE '\<$(func_re) *\(.*,$$' /dev/null; } \
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| $(SED) 's/_("\([^\"]\|\\.\)\+"//;s/[ ]"%s"//' \
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| $(GREP) '[ ]"' && \
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{ echo '$(ME): found unmarked diagnostic(s)' 1>&2; \
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@ -654,8 +656,8 @@ sc_libvirt_unmarked_diagnostics:
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# there are functions to which this one applies but that do not get marked
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# diagnostics.
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sc_prohibit_newline_at_end_of_diagnostic:
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@$(GREP) -A2 -nE \
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'\<$(func_re) *\(' $$($(VC_LIST_EXCEPT)) \
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@$(VC_LIST_EXCEPT) | xargs $(GREP) -A2 -nE \
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'\<$(func_re) *\(' /dev/null \
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| $(GREP) '\\n"' \
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&& { echo '$(ME): newline at end of message(s)' 1>&2; \
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exit 1; } || :
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@ -664,8 +666,10 @@ sc_prohibit_newline_at_end_of_diagnostic:
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# allow VIR_ERROR to do this, and ignore functions that take a single
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# string rather than a format argument.
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sc_prohibit_diagnostic_without_format:
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@{ $(GREP) -nE '\<$(func_re) *\(.*;$$' $$($(VC_LIST_EXCEPT)); \
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$(GREP) -A2 -nE '\<$(func_re) *\(.*,$$' $$($(VC_LIST_EXCEPT)); } \
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@{ $(VC_LIST_EXCEPT) | xargs \
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$(GREP) -nE '\<$(func_re) *\(.*;$$' /dev/null; \
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$(VC_LIST_EXCEPT) | xargs \
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$(GREP) -A2 -nE '\<$(func_re) *\(.*,$$' /dev/null; } \
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| $(SED) -rn -e ':l; /[,"]$$/ {N;b l;}' \
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-e '/(xenapiSessionErrorHandler|vah_(error|warning))/d' \
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-e '/\<$(func_re) *\([^"]*"([^%"]|"\n[^"]*")*"[,)]/p' \
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@ -687,7 +691,7 @@ sc_prohibit_useless_translation:
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# When splitting a diagnostic across lines, ensure that there is a space
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# or \n on one side of the split.
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sc_require_whitespace_in_translation:
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@$(GREP) -n -A1 '"$$' $$($(VC_LIST_EXCEPT)) \
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@$(VC_LIST_EXCEPT) | xargs $(GREP) -n -A1 '"$$' /dev/null \
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| $(SED) -ne ':l; /"$$/ {N;b l;}; s/"\n[^"]*"/""/g; s/\\n/ /g' \
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-e '/_(.*[^\ ]""[^\ ]/p' | $(GREP) . && \
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{ echo '$(ME): missing whitespace at line split' 1>&2; \
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@ -803,7 +807,8 @@ sc_prohibit_cross_inclusion:
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# When converting an enum to a string, make sure that we track any new
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# elements added to the enum by using a _LAST marker.
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sc_require_enum_last_marker:
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@$(GREP) -A1 -nE '^[^#]*VIR_ENUM_IMPL *\(' $$($(VC_LIST_EXCEPT)) \
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@$(VC_LIST_EXCEPT) | xargs \
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$(GREP) -A1 -nE '^[^#]*VIR_ENUM_IMPL *\(' /dev/null \
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| $(SED) -ne '/VIR_ENUM_IMPL[^,]*,$$/N' \
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-e '/VIR_ENUM_IMPL[^,]*,[^,]*[^_,][^L,][^A,][^S,][^T,],/p' \
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-e '/VIR_ENUM_IMPL[^,]*,[^,]\{0,4\},/p' \
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@ -866,8 +871,7 @@ sc_prohibit_atoi:
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$(_sc_search_regexp)
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sc_prohibit_wrong_filename_in_comment:
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@fail=0; \
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awk 'BEGIN { \
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@$(VC_LIST_EXCEPT) | $(GREP) '\.[ch]$$' | xargs awk 'BEGIN { \
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fail=0; \
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} FNR < 3 { \
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n=match($$0, /[[:space:]][^[:space:]]*[.][ch][[:space:]:]/); \
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@ -883,11 +887,8 @@ sc_prohibit_wrong_filename_in_comment:
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if (fail == 1) { \
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exit 1; \
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} \
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}' $$($(VC_LIST_EXCEPT) | $(GREP) '\.[ch]$$') || fail=1; \
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if test $$fail -eq 1; then \
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{ echo '$(ME): The file name in comments must match the' \
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'actual file name' 1>&2; exit 1; } \
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fi;
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}' || { echo '$(ME): The file name in comments must match the' \
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'actual file name' 1>&2; exit 1; }
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sc_prohibit_virConnectOpen_in_virsh:
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@prohibit='\bvirConnectOpen[a-zA-Z]* *\(' \
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@ -918,22 +919,21 @@ sc_require_if_else_matching_braces:
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$(_sc_search_regexp)
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sc_curly_braces_style:
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@files=$$($(VC_LIST_EXCEPT) | $(GREP) '\.[ch]$$'); \
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if $(GREP) -nHP \
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@if $(VC_LIST_EXCEPT) | $(GREP) '\.[ch]$$' | xargs $(GREP) -nHP \
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'^\s*(?!([a-zA-Z_]*for_?each[a-zA-Z_]*) ?\()([_a-zA-Z0-9]+( [_a-zA-Z0-9]+)* ?\()?(\*?[_a-zA-Z0-9]+(,? \*?[_a-zA-Z0-9\[\]]+)+|void)\) ?\{' \
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$$files; then \
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/dev/null; then \
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echo '$(ME): Non-K&R style used for curly braces around' \
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'function body' 1>&2; exit 1; \
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fi; \
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if $(GREP) -A1 -En ' ((if|for|while|switch) \(|(else|do)\b)[^{]*$$'\
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$$files | $(GREP) '^[^ ]*- *{'; then \
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if $(VC_LIST_EXCEPT) | $(GREP) '\.[ch]$$' | xargs \
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$(GREP) -A1 -En ' ((if|for|while|switch) \(|(else|do)\b)[^{]*$$' \
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/dev/null | $(GREP) '^[^ ]*- *{'; then \
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echo '$(ME): Use hanging braces for compound statements' 1>&2; exit 1; \
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fi
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sc_prohibit_windows_special_chars_in_filename:
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@files=$$($(VC_LIST_EXCEPT) | $(GREP) '[:*?"<>|]'); \
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test -n "$$files" && { echo '$(ME): Windows special chars' \
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'in filename not allowed:' 1>&2; echo $$files 1>&2; exit 1; } || :
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@$(VC_LIST_EXCEPT) | $(GREP) '[:*?"<>|]' && \
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{ echo '$(ME): Windows special chars in filename not allowed' 1>&2; echo exit 1; } || :
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sc_prohibit_mixed_case_abbreviations:
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@prohibit='Pci|Usb|Scsi' \
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@ -949,11 +949,11 @@ sc_require_locale_h:
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$(_sc_search_regexp)
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sc_prohibit_empty_first_line:
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@awk 'BEGIN { fail=0; } \
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@$(VC_LIST_EXCEPT) | xargs awk 'BEGIN { fail=0; } \
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FNR == 1 { if ($$0 == "") { print FILENAME ":1:"; fail=1; } } \
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END { if (fail == 1) { \
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print "$(ME): Prohibited empty first line" > "/dev/stderr"; \
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} exit fail; }' $$($(VC_LIST_EXCEPT));
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} exit fail; }'
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sc_prohibit_paren_brace:
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@prohibit='\)\{$$' \
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@ -996,8 +996,9 @@ sc_prohibit_sysconf_pagesize:
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$(_sc_search_regexp)
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sc_prohibit_virSecurity:
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@$(GREP) -Pn 'virSecurityManager(?!Ptr)' $$($(VC_LIST_EXCEPT) | $(GREP) 'src/qemu/' | \
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$(GREP) -v 'src/qemu/qemu_security') && \
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@$(VC_LIST_EXCEPT) | $(GREP) 'src/qemu/' | \
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$(GREP) -v 'src/qemu/qemu_security' | \
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xargs $(GREP) -Pn 'virSecurityManager(?!Ptr)' /dev/null && \
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{ echo '$(ME): prefer qemuSecurity wrappers' 1>&2; exit 1; } || :
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sc_prohibit_pthread_create:
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@ -1128,25 +1129,25 @@ endif
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# Don't include duplicate header in the source (either *.c or *.h)
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prohibit-duplicate-header:
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$(AM_V_GEN)files=$$($(VC_LIST_EXCEPT) | $(GREP) '\.[chx]$$'); \
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$(PERL) -W $(top_srcdir)/build-aux/prohibit-duplicate-header.pl $$files
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$(AM_V_GEN)$(VC_LIST_EXCEPT) | $(GREP) '\.[chx]$$' | xargs \
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$(PERL) -W $(top_srcdir)/build-aux/prohibit-duplicate-header.pl
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spacing-check:
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$(AM_V_GEN)files=`$(VC_LIST) | $(GREP) '\.c$$'`; \
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$(PERL) $(top_srcdir)/build-aux/check-spacing.pl $$files || \
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$(AM_V_GEN)$(VC_LIST) | $(GREP) '\.c$$' | xargs \
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$(PERL) $(top_srcdir)/build-aux/check-spacing.pl || \
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{ echo '$(ME): incorrect formatting' 1>&2; exit 1; }
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mock-noinline:
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$(AM_V_GEN)files=`$(VC_LIST) | $(GREP) '\.[ch]$$'`; \
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$(PERL) $(top_srcdir)/build-aux/mock-noinline.pl $$files
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$(AM_V_GEN)$(VC_LIST) | $(GREP) '\.[ch]$$' | xargs \
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$(PERL) $(top_srcdir)/build-aux/mock-noinline.pl
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header-ifdef:
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$(AM_V_GEN)files=`$(VC_LIST) | $(GREP) '\.[h]$$'`; \
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$(PERL) $(top_srcdir)/build-aux/header-ifdef.pl $$files
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$(AM_V_GEN)$(VC_LIST) | $(GREP) '\.[h]$$' | xargs \
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$(PERL) $(top_srcdir)/build-aux/header-ifdef.pl
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test-wrap-argv:
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$(AM_V_GEN)files=`$(VC_LIST) | $(GREP) -E '\.(ldargs|args)'`; \
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$(PERL) $(top_srcdir)/tests/test-wrap-argv.pl --check $$files
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$(AM_V_GEN)$(VC_LIST) | $(GREP) -E '\.(ldargs|args)' | xargs \
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$(PERL) $(top_srcdir)/tests/test-wrap-argv.pl --check
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group-qemu-caps:
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$(AM_V_GEN)$(PERL) $(top_srcdir)/tests/group-qemu-caps.pl --check $(top_srcdir)/
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