main: implement --env (closes #159)

feature/tap-sh
William Pitcock 2017-12-06 17:45:17 -06:00
parent 69a05a74b5
commit 7ab4dffaf1
2 changed files with 71 additions and 0 deletions

67
main.c
View File

@ -374,6 +374,57 @@ apply_variable(pkgconf_client_t *client, pkgconf_pkg_t *world, void *variable, i
return true;
}
static bool
apply_env_var(const char *prefix, pkgconf_client_t *client, pkgconf_pkg_t *world, int maxdepth,
unsigned int (*collect_fn)(pkgconf_client_t *client, pkgconf_pkg_t *world, pkgconf_list_t *list, int maxdepth),
bool (*filter_fn)(const pkgconf_client_t *client, const pkgconf_fragment_t *frag, void *data))
{
pkgconf_list_t unfiltered_list = PKGCONF_LIST_INITIALIZER;
pkgconf_list_t filtered_list = PKGCONF_LIST_INITIALIZER;
unsigned int eflag;
char *render_buf;
eflag = collect_fn(client, world, &unfiltered_list, maxdepth);
if (eflag != PKGCONF_PKG_ERRF_OK)
return false;
pkgconf_fragment_filter(client, &filtered_list, &unfiltered_list, filter_fn, NULL);
if (filtered_list.head == NULL)
goto out;
render_buf = pkgconf_fragment_render(&filtered_list, true);
printf("%s=%s\n", prefix, render_buf);
free(render_buf);
out:
pkgconf_fragment_free(&unfiltered_list);
pkgconf_fragment_free(&filtered_list);
return true;
}
static bool
apply_env(pkgconf_client_t *client, pkgconf_pkg_t *world, void *env_prefix_p, int maxdepth)
{
const char *want_env_prefix = env_prefix_p, *it;
char workbuf[PKGCONF_ITEM_SIZE];
for (it = want_env_prefix; *it != '\0'; it++)
if (!isalpha(*it) && !isdigit(*it))
return false;
snprintf(workbuf, sizeof workbuf, "%s_CFLAGS", want_env_prefix);
if (!apply_env_var(workbuf, client, world, maxdepth, pkgconf_pkg_cflags, filter_cflags))
return false;
snprintf(workbuf, sizeof workbuf, "%s_LIBS", want_env_prefix);
if (!apply_env_var(workbuf, client, world, maxdepth, pkgconf_pkg_libs, filter_libs))
return false;
return true;
}
static bool
apply_cflags(pkgconf_client_t *client, pkgconf_pkg_t *world, void *unused, int maxdepth)
{
@ -659,6 +710,7 @@ main(int argc, char *argv[])
char *required_max_module_version = NULL;
char *required_module_version = NULL;
char *logfile_arg = NULL;
char *want_env_prefix = NULL;
unsigned int want_client_flags = PKGCONF_PKG_PKGF_NONE;
want_flags = 0;
@ -725,6 +777,7 @@ main(int argc, char *argv[])
{ "relocate", required_argument, NULL, 45 },
{ "dont-define-prefix", no_argument, &want_flags, PKG_DONT_DEFINE_PREFIX },
{ "dont-relocate-paths", no_argument, &want_flags, PKG_DONT_RELOCATE_PATHS },
{ "env", required_argument, NULL, 48 },
{ NULL, 0, NULL, 0 }
};
@ -773,6 +826,9 @@ main(int argc, char *argv[])
case 45:
relocate_path(pkg_optarg);
return EXIT_SUCCESS;
case 48:
want_env_prefix = pkg_optarg;
break;
case '?':
case ':':
return EXIT_FAILURE;
@ -1108,6 +1164,17 @@ main(int argc, char *argv[])
goto out;
}
if (want_env_prefix != NULL)
{
if (!pkgconf_queue_apply(&pkg_client, &pkgq, apply_env, maximum_traverse_depth, want_env_prefix))
{
ret = EXIT_FAILURE;
goto out;
}
want_flags = 0;
}
if ((want_flags & PKG_PROVIDES) == PKG_PROVIDES)
{
want_flags &= ~(PKG_CFLAGS|PKG_LIBS);

View File

@ -155,6 +155,10 @@ file. This can be used with graphviz to visualize module interdependencies.
Display the filenames of the
.Sq .pc
files used by the dependency resolver for a given dependency set.
.It Fl -env Ns = Ns Ar VARNAME
Print the requested values as variable declarations in a similar format as the
.Xr env 1
command.
.El
.Sh ENVIRONMENT
.Bl -tag -width indent