Am 30.11.2015 um 12:32 schrieb Siarhei Siamashka:
Don't we have a redundant code duplication here (copied from the
"multiwrite" command implementation)?

If I understand it correctly, only the progress callback function is
different in all these implementations.

Yup. That's what the new file_upload() function accounted for, so the various
"write" command cases are now much more streamlined.

Regards, B. Nortmann

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>From a875406070f69c8bf77625fa91c46a166519c4e0 Mon Sep 17 00:00:00 2001
From: Bernhard Nortmann <bernhard.nortm...@web.de>
Date: Thu, 26 Nov 2015 16:46:01 +0100
Subject: [PATCH v6 8/9] fel: support FEL progress gauge via dialog utility

This patch adds some additional commands, and implements corresponding
progress callbacks that produce output for the 'dialog' utility:
http://invisible-island.net/dialog/dialog.html

The simple "*-with-gauge" just emits percentage numbers, line by line,
while "*-with-xgauge" outputs extended information to update the
dialog prompt. Both are meant for directly piping the output:
sunxi-fel write-with-gauge <...> | dialog --gauge "FEL upload" 6 70

Signed-off-by: Bernhard Nortmann <bernhard.nortm...@web.de>
---
 fel.c      | 21 +++++++++++++++++++++
 progress.c | 44 ++++++++++++++++++++++++++++++++++++++++++++
 progress.h |  2 ++
 3 files changed, 67 insertions(+)

diff --git a/fel.c b/fel.c
index 36fb544..cdb34c7 100644
--- a/fel.c
+++ b/fel.c
@@ -1299,8 +1299,13 @@ int main(int argc, char **argv)
                        "       read address length file        Write memory 
contents into file\n"
                        "       write address file              Store file 
contents into memory\n"
                        "       write-with-progress addr file   \"write\" with 
progress bar\n"
+                       "       write-with-gauge addr file      Output progress 
for \"dialog --gauge\"\n"
+                       "       write-with-xgauge addr file     Extended gauge 
output (updates prompt)\n"
                        "       multi[write] # addr file ...    
\"write-with-progress\" multiple files,\n"
                        "                                       sharing a 
common progress status\n"
+                       "       multi[write]-with-gauge ...     like their 
\"write-with-*\" counterpart,\n"
+                       "       multi[write]-with-xgauge ...      but following 
the 'multi' syntax:\n"
+                       "                                         <#> addr file 
[addr file [...]]\n"
                        "       ver[sion]                       Show BROM 
version\n"
                        "       clear address length            Clear memory\n"
                        "       fill address length value       Fill memory\n"
@@ -1367,11 +1372,27 @@ int main(int argc, char **argv)
                } else if (strcmp(argv[1], "write-with-progress") == 0 && argc 
> 3) {
                        skip += 2 * file_upload(handle, 1, argc - 2, argv + 2,
                                                progress_bar);
+               } else if (strcmp(argv[1], "write-with-gauge") == 0 && argc > 
3) {
+                       skip += 2 * file_upload(handle, 1, argc - 2, argv + 2,
+                                               progress_gauge);
+               } else if (strcmp(argv[1], "write-with-xgauge") == 0 && argc > 
3) {
+                       skip += 2 * file_upload(handle, 1, argc - 2, argv + 2,
+                                               progress_gauge_xxx);
                } else if ((strcmp(argv[1], "multiwrite") == 0 ||
                            strcmp(argv[1], "multi") == 0) && argc > 4) {
                        size_t count = strtoul(argv[2], NULL, 0); /* file count 
*/
                        skip = 2 + 2 * file_upload(handle, count, argc - 3,
                                                   argv + 3, progress_bar);
+               } else if ((strcmp(argv[1], "multiwrite-with-gauge") == 0 ||
+                           strcmp(argv[1], "multi-with-gauge") == 0) && argc > 
4) {
+                       size_t count = strtoul(argv[2], NULL, 0); /* file count 
*/
+                       skip = 2 + 2 * file_upload(handle, count, argc - 3,
+                                                  argv + 3, progress_gauge);
+               } else if ((strcmp(argv[1], "multiwrite-with-xgauge") == 0 ||
+                           strcmp(argv[1], "multi-with-xgauge") == 0) && argc 
> 4) {
+                       size_t count = strtoul(argv[2], NULL, 0); /* file count 
*/
+                       skip = 2 + 2 * file_upload(handle, count, argc - 3,
+                                                  argv + 3, 
progress_gauge_xxx);
                } else if (strcmp(argv[1], "read") == 0 && argc > 4) {
                        size_t size = strtoul(argv[3], NULL, 0);
                        void *buf = malloc(size);
diff --git a/progress.c b/progress.c
index 05d8f8b..47ea893 100644
--- a/progress.c
+++ b/progress.c
@@ -119,3 +119,47 @@ void progress_bar(size_t total, size_t done)
 
        fflush(stdout);
 }
+
+/*
+ * Progress callback that emits percentage numbers, each on a separate line.
+ * The output is suitable for piping it into "dialog --gauge".
+ *
+ * sunxi-fel multiwrite-with-gauge <...> \
+ *     | dialog --title "FEL upload progress" \
+ *              --gauge "" 5 70
+ */
+void progress_gauge(size_t total, size_t done)
+{
+       if (total > 0) {
+               printf("%.0f\n", (float)done / total * 100);
+               fflush(stdout);
+       }
+}
+
+/*
+ * A more sophisticated version of progress_gauge() that also updates the
+ * prompt (caption) with additional information. This uses a feature of
+ * the dialog utility that parses "XXX" delimiters - see 'man dialog'.
+ *
+ * sunxi-fel multiwrite-with-xgauge <...> \
+ *     | dialog --title "FEL upload progress" \
+ *              --backtitle "Please wait..." \
+ *              --gauge "" 6 70
+ */
+void progress_gauge_xxx(size_t total, size_t done)
+{
+       if (total > 0) {
+               double speed = rate(done, progress_elapsed());
+               double eta = estimate(total - done, speed);
+               printf("XXX\n");
+               printf("%.0f\n", (float)done / total * 100);
+               if (done < total)
+                       printf("%zu of %zu, %.1f kB/s, ETA %s\n",
+                               done, total, kilo(speed), format_ETA(eta));
+               else
+                       printf("Done: %.1f kB, at %.1f kB/s\n",
+                               kilo(done), kilo(speed));
+               printf("XXX\n");
+               fflush(stdout);
+       }
+}
diff --git a/progress.h b/progress.h
index b072cc0..b5c97aa 100644
--- a/progress.h
+++ b/progress.h
@@ -35,5 +35,7 @@ void progress_update(size_t bytes_done);
 
 /* progress callback implementations for various display styles */
 void progress_bar(size_t total, size_t done);
+void progress_gauge(size_t total, size_t done);
+void progress_gauge_xxx(size_t total, size_t done);
 
 #endif /* _SUNXI_TOOLS_PROGRESS_H */
-- 
2.4.6

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