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eeshow/: option -N depth to limit history depth; -N-depth exits after parsing

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This commit is contained in:
Werner Almesberger 2016-08-10 09:08:22 -03:00
parent 02e4d6e071
commit 54922dc343
3 changed files with 26 additions and 18 deletions
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21
eeshow/gui.c
View File

@ -996,7 +996,7 @@ struct add_hist_ctx {
int n_args; int n_args;
char **args; char **args;
bool recurse; bool recurse;
unsigned limit; unsigned limit;
}; };
@ -1008,9 +1008,10 @@ static void add_hist(void *user, struct hist *h)
const struct sheet *sch; const struct sheet *sch;
unsigned age = 0; unsigned age = 0;
if (!ahc->limit) if (!ahc->limit)
return; return;
ahc->limit--; ahc->limit--;
for (anchor = &ctx->hist; *anchor; anchor = &(*anchor)->next) for (anchor = &ctx->hist; *anchor; anchor = &(*anchor)->next)
age++; age++;
*anchor = alloc_type(struct gui_hist); *anchor = alloc_type(struct gui_hist);
@ -1024,7 +1025,7 @@ ahc->limit--;
static void get_revisions(struct gui_ctx *ctx, static void get_revisions(struct gui_ctx *ctx,
int n_args, char **args, bool recurse) int n_args, char **args, bool recurse, int limit)
{ {
const char *sch_name = args[n_args - 1]; const char *sch_name = args[n_args - 1];
struct add_hist_ctx add_hist_ctx = { struct add_hist_ctx add_hist_ctx = {
@ -1032,7 +1033,7 @@ static void get_revisions(struct gui_ctx *ctx,
.n_args = n_args, .n_args = n_args,
.args = args, .args = args,
.recurse = recurse, .recurse = recurse,
.limit = 30, .limit = limit < 0 ? -limit : limit,
}; };
if (!vcs_git_try(sch_name)) { if (!vcs_git_try(sch_name)) {
@ -1045,7 +1046,7 @@ static void get_revisions(struct gui_ctx *ctx,
} }
int gui(unsigned n_args, char **args, bool recurse) int gui(unsigned n_args, char **args, bool recurse, int limit)
{ {
GtkWidget *window; GtkWidget *window;
struct gui_ctx ctx = { struct gui_ctx ctx = {
@ -1060,7 +1061,7 @@ int gui(unsigned n_args, char **args, bool recurse)
.old_hist = NULL, .old_hist = NULL,
}; };
get_revisions(&ctx, n_args, args, recurse); get_revisions(&ctx, n_args, args, recurse, limit);
for (ctx.new_hist = ctx.hist; ctx.new_hist && !ctx.new_hist->sheets; for (ctx.new_hist = ctx.hist; ctx.new_hist && !ctx.new_hist->sheets;
ctx.new_hist = ctx.new_hist->next); ctx.new_hist = ctx.new_hist->next);
if (!ctx.new_hist) { if (!ctx.new_hist) {
@ -1107,7 +1108,9 @@ int gui(unsigned n_args, char **args, bool recurse)
go_to_sheet(&ctx, ctx.new_hist->sheets); go_to_sheet(&ctx, ctx.new_hist->sheets);
gtk_widget_show_all(window); gtk_widget_show_all(window);
gtk_main(); /* for performance testing, use -N-depth */
if (limit >= 0)
gtk_main();
return 0; return 0;
} }

2
eeshow/gui.h
View File

@ -20,6 +20,6 @@
* and there is no NULL at the end. * and there is no NULL at the end.
*/ */
int gui(unsigned n_args, char **args, bool recurse); int gui(unsigned n_args, char **args, bool recurse, int limit);
#endif /* !GUI_H */ #endif /* !GUI_H */

21
eeshow/main.c
View File

@ -47,17 +47,18 @@ static struct gfx_ops const *ops_list[] = {
void usage(const char *name) void usage(const char *name)
{ {
fprintf(stderr, fprintf(stderr,
"usage: %s [gtk_flags] [-r] [[rev:]file.lib ...] [rev:]file.sch\n" "usage: %s [gtk_flags] [-r] [-N n] [[rev:]file.lib ...] [rev:]file.sch\n"
" %s [-r] [-v ...] [[rev:]file.lib ...] [rev:]file.sch\n" " %s [-r] [-v ...] [[rev:]file.lib ...] [rev:]file.sch\n"
" %*s[-- driver_spec]\n" " %*s[-- driver_spec]\n"
" %s [-v ...] -C [rev:]file\n" " %s [-v ...] -C [rev:]file\n"
" %s [-v ...] -H path_into_repo\n" " %s [-v ...] -H path_into_repo\n"
"\n" "\n"
" rev git revision\n" " rev git revision\n"
" -r recurse into sub-sheets\n" " -r recurse into sub-sheets\n"
" -v increase verbosity of diagnostic output\n" " -v increase verbosity of diagnostic output\n"
" -C 'cat' the file to standard output\n" " -C 'cat' the file to standard output\n"
" -H show history of repository on standard output\n" " -H show history of repository on standard output\n"
" -N n limit history to n revisions\n"
"\n" "\n"
"No driver spec: enter GUI\n" "No driver spec: enter GUI\n"
"\n" "\n"
@ -96,6 +97,7 @@ int main(int argc, char **argv)
const char *cat = NULL; const char *cat = NULL;
const char *history = NULL; const char *history = NULL;
const char *fmt = NULL; const char *fmt = NULL;
int limit = 0;
char c; char c;
int arg, dashdash; int arg, dashdash;
bool have_dashdash = 0; bool have_dashdash = 0;
@ -112,7 +114,7 @@ int main(int argc, char **argv)
if (!have_dashdash) if (!have_dashdash)
gtk_init(&argc, &argv); gtk_init(&argc, &argv);
while ((c = getopt(dashdash, argv, "rvC:F:H:")) != EOF) while ((c = getopt(dashdash, argv, "rvC:F:H:N:")) != EOF)
switch (c) { switch (c) {
case 'r': case 'r':
recurse = 1; recurse = 1;
@ -129,6 +131,9 @@ int main(int argc, char **argv)
case 'H': case 'H':
history = optarg; history = optarg;
break; break;
case 'N':
limit = atoi(optarg);
break;
default: default:
usage(*argv); usage(*argv);
} }
@ -173,7 +178,7 @@ int main(int argc, char **argv)
memcpy(args, argv + optind, sizeof(const char *) * n); memcpy(args, argv + optind, sizeof(const char *) * n);
optind = 0; /* reset getopt */ optind = 0; /* reset getopt */
return gui(n, args, recurse); return gui(n, args, recurse, limit);
} }
sch_init(&sch_ctx, recurse); sch_init(&sch_ctx, recurse);