[PATCH v5 02/10] generate-cmds.sh: export all commands to command-list.h
- From
Nguyễn Thái Ngọc Duy <pclouds@gmail.com>
- Date
- Apr 29, 2018, 18:18 UTC
- Message-ID
- <20180429181844.21325-3-pclouds@gmail.com>
- In-Reply-To
- <20180429181844.21325-1-pclouds@gmail.com>
The current generate-cmds.sh generates just enough to print "git help" output. That is, it only extracts help text for common commands.
The script is now updated to extract help text for all commands and keep command classification a new file, command-list.h. This will be useful later:
- "git help -a" could print a short summary of all commands instead of just the common ones.
- "git" could produce a list of commands of one or more category. One of its use is to reduce another command classification embedded in git-completion.bash.
The new file can be generated but is not used anywhere yet. The plan is we migrate away from common-cmds.h. Then we can kill off common-cmds.h build rules and generation code (and also delete duplicate content in command-list.h which we keep for now to not mess generate-cmds.sh up too much).
PS. The new fixed column requirement on command-list.txt is technically not needed. But it helps simplify the code a bit at this stage. We could lift this restriction later if we want to.
Signed-off-by: Nguyễn Thái Ngọc Duy <pclouds@gmail.com> --- .gitignore | 1 + Makefile | 13 ++++++--- command-list.txt | 4 +-- generate-cmdlist.sh | 67 ++++++++++++++++++++++++++++++++++++++++++--- 4 files changed, 75 insertions(+), 10 deletions(-)
diff --git a/.gitignore b/.gitignore index 833ef3b0b7..d4c3914167 100644 --- a/.gitignore +++ b/.gitignore @@ -180,6 +180,7 @@ /gitweb/static/gitweb.js /gitweb/static/gitweb.min.* /common-cmds.h +/command-list.h *.tar.gz *.dsc *.deb diff --git a/Makefile b/Makefile index 50da82b016..bb29470f88 100644 --- a/Makefile +++ b/Makefile @@ -757,7 +757,7 @@ LIB_FILE = libgit.a XDIFF_LIB = xdiff/lib.a VCSSVN_LIB = vcs-svn/lib.a -GENERATED_H += common-cmds.h +GENERATED_H += common-cmds.h command-list.h LIB_H = $(shell $(FIND) . \ -name .git -prune -o \ @@ -1940,6 +1940,11 @@ $(BUILT_INS): git$X common-cmds.h: generate-cmdlist.sh command-list.txt common-cmds.h: $(wildcard Documentation/git-*.txt) + $(QUIET_GEN)$(SHELL_PATH) ./generate-cmdlist.sh command-list.txt COMMON >$@+ && mv $@+ $@ + +command-list.h: generate-cmdlist.sh command-list.txt + +command-list.h: $(wildcard Documentation/git-*.txt) $(QUIET_GEN)$(SHELL_PATH) ./generate-cmdlist.sh command-list.txt >$@+ && mv $@+ $@ SCRIPT_DEFINES = $(SHELL_PATH_SQ):$(DIFF_SQ):$(GIT_VERSION):\ @@ -2150,7 +2155,7 @@ else # Dependencies on header files, for platforms that do not support # the gcc -MMD option. # -# Dependencies on automatically generated headers such as common-cmds.h +# Dependencies on automatically generated headers such as common-cmds.h or command-list.h # should _not_ be included here, since they are necessary even when # building an object for the first time. @@ -2529,7 +2534,7 @@ sparse: $(SP_OBJ) style: git clang-format --style file --diff --extensions c,h -check: common-cmds.h +check: common-cmds.h command-list.h @if sparse; \ then \ echo >&2 "Use 'make sparse' instead"; \ @@ -2777,7 +2782,7 @@ clean: profile-clean coverage-clean $(RM) $(TEST_PROGRAMS) $(NO_INSTALL) $(RM) -r bin-wrappers $(dep_dirs) $(RM) -r po/build/ - $(RM) *.pyc *.pyo */*.pyc */*.pyo common-cmds.h $(ETAGS_TARGET) tags cscope* + $(RM) *.pyc *.pyo */*.pyc */*.pyo common-cmds.h command-list.h $(ETAGS_TARGET) tags cscope* $(RM) -r $(GIT_TARNAME) .doc-tmp-dir $(RM) $(GIT_TARNAME).tar.gz git-core_$(GIT_VERSION)-*.tar.gz $(RM) $(htmldocs).tar.gz $(manpages).tar.gz diff --git a/command-list.txt b/command-list.txt index a1fad28fd8..786536aba0 100644 --- a/command-list.txt +++ b/command-list.txt @@ -8,8 +8,8 @@ info examine the history and state (see also: git help revisions) history grow, mark and tweak your common history remote collaborate (see also: git help workflows) -### command list (do not change this line) -# command name category [deprecated] [common] +### command list (do not change this line, also do not change alignment) +# command name category [category] [category] git-add mainporcelain worktree git-am mainporcelain git-annotate ancillaryinterrogators diff --git a/generate-cmdlist.sh b/generate-cmdlist.sh index 31b6d886cb..c9fd524760 100755 --- a/generate-cmdlist.sh +++ b/generate-cmdlist.sh @@ -1,5 +1,27 @@ #!/bin/sh +die () { + echo "$@" >&2 + exit 1 +} + +command_list () { + sed '1,/^### command list/d;/^#/d' "$1" +} + +get_categories() { + tr ' ' '\n'| + grep -v '^$' | + sort | + uniq +} + +category_list () { + command_list "$1" | + cut -c 40- | + get_categories +} + get_synopsis () { sed -n ' /^NAME/,/'"$1"'/H @@ -10,14 +32,51 @@ get_synopsis () { }' "Documentation/$1.txt" } +define_categories() { + echo + echo "/* Command categories */" + bit=0 + category_list "$1" | + while read cat + do + echo "#define CAT_$cat (1UL << $bit)" + bit=$(($bit+1)) + done + test "$bit" -gt 32 && die "Urgh.. too many categories?" +} + +print_command_list() { + echo "static struct cmdname_help command_list[] = {" + + command_list "$1" | + while read cmd rest + do + printf " { \"$cmd\", $(get_synopsis $cmd), 0" + for cat in $(echo "$rest" | get_categories) + do + printf " | CAT_$cat" + done + echo " }," + done + echo "};" +} + echo "/* Automatically generated by generate-cmdlist.sh */ struct cmdname_help { - char name[16]; - char help[80]; - unsigned char group; + const char *name; + const char *help; + uint32_t group; }; +" +if [ -z "$2" ] +then + define_categories "$1" + echo + print_command_list "$1" + exit 0 +fi -static const char *common_cmd_groups[] = {" +echo "static const char *common_cmd_groups[] = {" grps=grps$$.tmp match=match$$.tmp
-- 2.17.0.664.g8924eee37a