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split out tool list into a separate subcommand

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Fits the -h output on one screen again, and allows more whitespace
in both the -h output and the tool list.
This commit is contained in:
Evan Martin 2011-12-05 12:03:04 -08:00
parent 3d17415c46
commit 47596e8282
1 changed files with 27 additions and 14 deletions
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41
src/ninja.cc
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@ -52,27 +52,21 @@ void Usage(const BuildConfig& config) {
"\n"
"if targets are unspecified, builds the 'default' target (see manual).\n"
"targets are paths, with additional special syntax:\n"
" target^ means 'the first output that uses target'.\n"
" 'target^' means 'the first output that uses target'.\n"
" example: 'ninja foo.cc^' will likely build foo.o.\n"
"\n"
"options:\n"
" -C DIR change to DIR before doing anything else\n"
" -f FILE specify input build file [default=build.ninja]\n"
"\n"
" -j N run N jobs in parallel [default=%d]\n"
" -k N keep going until N jobs fail [default=1]\n"
" -n dry run (don't run commands but pretend they succeeded)\n"
" -v show all command lines\n"
" -C DIR change to DIR before doing anything else\n"
" -v show all command lines while building\n"
"\n"
" -t TOOL run a subtool.\n"
" terminates toplevel options; further flags are passed to the tool.\n"
" tools are:\n"
" browse browse dependency graph in a web browser\n"
" graph output graphviz dot file for targets\n"
" query show inputs/outputs for a path\n"
" targets list targets by their rule or depth in the DAG\n"
" rules list all rules\n"
" commands list all commands required to rebuild given targets\n"
" clean clean built files\n",
" -t TOOL run a subtool\n"
" use '-t list' to list subtools.\n"
" terminates toplevel options; further flags are passed to the tool.\n",
config.parallelism);
}
@ -448,6 +442,22 @@ int CmdClean(State* state, int argc, char* argv[], const BuildConfig& config) {
}
}
/// Print out a list of tools.
int CmdList(State* state, int argc, char* argv[]) {
printf("subtools:\n"
" clean clean built files\n"
"\n"
" browse browse dependency graph in a web browser\n"
" graph output graphviz dot file for targets\n"
" query show inputs/outputs for a path\n"
"\n"
" targets list targets by their rule or depth in the DAG\n"
" rules list all rules\n"
" commands list all commands required to rebuild given targets\n"
);
return 0;
}
} // anonymous namespace
int main(int argc, char** argv) {
@ -548,9 +558,12 @@ reload:
// the tool, i.e. "clean".
if (tool == "clean")
return CmdClean(&state, argc+1, argv-1, config);
if (tool == "list")
return CmdClean(&state, argc+1, argv-1, config);
const char* suggestion = SpellcheckString(tool,
"graph", "query", "browse", "targets", "rules", "commands", NULL);
"graph", "query", "browse", "targets", "rules", "commands", "list",
NULL);
if (suggestion) {
Error("unknown tool '%s', did you mean '%s'?", tool.c_str(), suggestion);
} else {