move $ABRT_foo checking and setting into helper routines.

I'm sick of fixing incorrect PROGNAME defines.
Now g_progname is a variable and it is set from argv[0].

Signed-off-by: Denys Vlasenko <dvlasenk@redhat.com>

2 files changed, 54 insertions, 4 deletions

diff --git a/src/lib/parse_options.c b/src/lib/parse_options.c
index d9ce8a2f..4e4a3e08 100644
--- a/src/lib/parse_options.c
+++ b/src/lib/parse_options.c
@@ -24,12 +24,55 @@
 #define USAGE_OPTS_WIDTH 24
 #define USAGE_GAP         2
 
-void show_usage_and_die(const char *usage, const struct options *opt)
+const char *g_progname;
+
+const char *abrt_init(char **argv)
 {
-    fprintf(stderr, _("Usage: %s\n"), usage);
+    char *env_verbose = getenv("ABRT_VERBOSE");
+    if (env_verbose)
+        g_verbose = atoi(env_verbose);
+
+    g_progname = strrchr(argv[0], '/');
+    if (g_progname)
+        g_progname++;
+    else
+        g_progname = argv[0];
+
+    char *pfx = getenv("ABRT_PROG_PREFIX");
+    if (pfx && string_to_bool(pfx))
+        msg_prefix = g_progname;
+
+    return g_progname;
+}
 
-    if (opt->type != OPTION_GROUP)
-        fputc('\n', stderr);
+void export_abrt_envvars(int pfx)
+{
+    putenv(xasprintf("ABRT_VERBOSE=%u", g_verbose));
+    if (pfx)
+    {
+        putenv((char*)"ABRT_PROG_PREFIX=1");
+        msg_prefix = g_progname;
+    }
+}
+
+void show_usage_and_die(const char *usage, const struct options *opt)
+{
+    fputs(_("Usage: "), stderr);
+    while (*usage)
+    {
+        int len = strchrnul(usage, '\b') - usage;
+        if (len > 0)
+        {
+            fprintf(stderr, "%.*s", len, usage);
+            usage += len;
+        }
+        if (*usage == '\b')
+        {
+            fputs(g_progname, stderr);
+            usage++;
+        }
+    }
+    fputs("\n\n", stderr);
 
     for (; opt->type != OPTION_END; opt++)
     {
diff --git a/src/lib/parse_options.h b/src/lib/parse_options.h
index 8c784b96..285d97a0 100644
--- a/src/lib/parse_options.h
+++ b/src/lib/parse_options.h
@@ -23,6 +23,13 @@
 extern "C" {
 #endif
 
+const char *abrt_init(char **argv);
+#define export_abrt_envvars abrt_export_abrt_envvars
+void export_abrt_envvars(int pfx);
+#define g_progname abrt_g_progname
+extern const char *g_progname;
+
+
 enum parse_opt_type {
     OPTION_BOOL,
     OPTION_GROUP,