[PATCH v2 1/4] Makefile: extract script to lint missing/extraneous manpages
The "check-docs" target of our top-level Makefile fulfills two different roles. For one it runs the "lint-docs" target of the "Documentation/" Makefile. And second it performs some checks of whether there are any manpages that are missing or extraneous via some inline scripts.
The second set of checks feels quite misplaced in the top-level Makefile as it would fit in much better with our "lint-docs" target. Back when the checks were introduced in 8c989ec528 (Makefile: $(MAKE) check-docs, 2006-04-13), that target did not yet exist though.
Furthermore, the script makes use of several Makefile variables which are defined in the top-level Makefile, which makes it hard to access their contents from elsewhere. There is a trick though that we already use in "check-builtins.sh" to gain access: we can create an ad-hoc Makefile that has an extra target to print those variables.
Pull out the script into a separate "lint-manpages.sh" script by using that trick. Wire up that script via the "lint-docs" target. For one, normal shell scripts are way easier to reason about than those which are embedded in a Makefile. Second, it allows one to easily execute the script standalone without any of the other checks.
Signed-off-by: Patrick Steinhardt <ps@pks.im>
---
Documentation/Makefile | 4 ++
Documentation/lint-manpages.sh | 83 ++++++++++++++++++++++++++++++++++
Makefile | 36 ---------------
3 files changed, 87 insertions(+), 36 deletions(-)
create mode 100755 Documentation/lint-manpages.sh
Show changes to 3 files +87 −36
Documentation/Makefile, Documentation/lint-manpages.sh, Makefile
diff --git a/Documentation/Makefile b/Documentation/Makefile
index a04da672c6..a3868a462f 100644
--- a/Documentation/Makefile
+++ b/Documentation/Makefile
@@ -485,12 +485,16 @@ $(LINT_DOCS_FSCK_MSGIDS): ../fsck.h fsck-msgids.txt
lint-docs-fsck-msgids: $(LINT_DOCS_FSCK_MSGIDS)
+lint-docs-manpages:
+ $(QUIET_GEN)./lint-manpages.sh
+
## Lint: list of targets above
.PHONY: lint-docs
lint-docs: lint-docs-fsck-msgids
lint-docs: lint-docs-gitlink
lint-docs: lint-docs-man-end-blurb
lint-docs: lint-docs-man-section-order
+lint-docs: lint-docs-manpages
ifeq ($(wildcard po/Makefile),po/Makefile)
doc-l10n install-l10n::
diff --git a/Documentation/lint-manpages.sh b/Documentation/lint-manpages.sh
new file mode 100755
index 0000000000..0abb4e0b4c
--- /dev/null
+++ b/Documentation/lint-manpages.sh
@@ -0,0 +1,83 @@
+#!/bin/sh
+
+extract_variable () {
+ (
+ cat ../Makefile
+ cat <<EOF
+print_variable:
+ @\$(foreach b,\$($1),echo XXX \$(b:\$X=) YYY;)
+EOF
+ ) |
+ make -C .. -f - print_variable 2>/dev/null |
+ sed -n -e 's/.*XXX \(.*\) YYY.*/\1/p'
+}
+
+check_missing_docs () {
+ for v in $ALL_COMMANDS
+ do
+ case "$v" in
+ git-merge-octopus) continue;;
+ git-merge-ours) continue;;
+ git-merge-recursive) continue;;
+ git-merge-resolve) continue;;
+ git-merge-subtree) continue;;
+ git-fsck-objects) continue;;
+ git-init-db) continue;;
+ git-remote-*) continue;;
+ git-stage) continue;;
+ git-legacy-*) continue;;
+ git-?*--?* ) continue ;;
+ esac
+
+ if ! test -f "$v.txt"
+ then
+ echo "no doc: $v"
+ fi
+
+ if ! sed -e '1,/^### command list/d' -e '/^#/d' ../command-list.txt |
+ grep -q "^$v[ ]"
+ then
+ case "$v" in
+ git)
+ ;;
+ *)
+ echo "no link: $v";;
+ esac
+ fi
+ done
+}
+
+check_extraneous_docs () {
+ (
+ sed -e '1,/^### command list/d' \
+ -e '/^#/d' \
+ -e '/guide$/d' \
+ -e '/interfaces$/d' \
+ -e 's/[ ].*//' \
+ -e 's/^/listed /' ../command-list.txt
+ make print-man1 |
+ grep '\.txt$' |
+ sed -e 's|^|documented |' \
+ -e 's/\.txt//'
+ ) | (
+ all_commands="$(printf "%s " "$ALL_COMMANDS" "$BUILT_INS" "$EXCLUDED_PROGRAMS" | tr '\n' ' ')"
+
+ while read how cmd
+ do
+ case " $all_commands " in
+ *" $cmd "*) ;;
+ *)
+ echo "removed but $how: $cmd";;
+ esac
+ done
+ )
+}
+
+BUILT_INS="$(extract_variable BUILT_INS)"
+ALL_COMMANDS="$(extract_variable ALL_COMMANDS)"
+EXCLUDED_PROGRAMS="$(extract_variable EXCLUDED_PROGRAMS)"
+
+{
+ check_missing_docs
+ check_extraneous_docs
+} | sort
diff --git a/Makefile b/Makefile
index 59d98ba688..84e2aa9686 100644
--- a/Makefile
+++ b/Makefile
@@ -3757,42 +3757,6 @@ ALL_COMMANDS += scalar
.PHONY: check-docs
check-docs::
$(MAKE) -C Documentation lint-docs
- @(for v in $(patsubst %$X,%,$(ALL_COMMANDS)); \
- do \
- case "$$v" in \
- git-merge-octopus | git-merge-ours | git-merge-recursive | \
- git-merge-resolve | git-merge-subtree | \
- git-fsck-objects | git-init-db | \
- git-remote-* | git-stage | git-legacy-* | \
- git-?*--?* ) continue ;; \
- esac ; \
- test -f "Documentation/$$v.txt" || \
- echo "no doc: $$v"; \
- sed -e '1,/^### command list/d' -e '/^#/d' command-list.txt | \
- grep -q "^$$v[ ]" || \
- case "$$v" in \
- git) ;; \
- *) echo "no link: $$v";; \
- esac ; \
- done; \
- ( \
- sed -e '1,/^### command list/d' \
- -e '/^#/d' \
- -e '/guide$$/d' \
- -e '/interfaces$$/d' \
- -e 's/[ ].*//' \
- -e 's/^/listed /' command-list.txt; \
- $(MAKE) -C Documentation print-man1 | \
- grep '\.txt$$' | \
- sed -e 's|^|documented |' \
- -e 's/\.txt//'; \
- ) | while read how cmd; \
- do \
- case " $(patsubst %$X,%,$(ALL_COMMANDS) $(BUILT_INS) $(EXCLUDED_PROGRAMS)) " in \
- *" $$cmd "*) ;; \
- *) echo "removed but $$how: $$cmd" ;; \
- esac; \
- done ) | sort
### Make sure built-ins do not have dups and listed in git.c
#
--
2.45.2.409.g7b0defb391.dirty
Patrick Steinhardt
