commit e1676198f01a1ba713e1bc9705db8df80cc47cfa parent d871d884d37a2d9e41278198ac52b50850aff969 Author: Hiltjo Posthuma <hiltjo@codemadness.org> Date: Sat, 14 May 2022 12:28:58 +0200 README: add progress indicator script Diffstat:
| M | README | | | 47 | +++++++++++++++++++++++++++++++++++++++++++++++ |
1 file changed, 47 insertions(+), 0 deletions(-)
diff --git a/README b/README @@ -971,6 +971,53 @@ TSV format. - - - +Progress indicator +------------------ + +The below sfeed_update wrapper script counts the amount of feeds in a sfeedrc +config. It then calls sfeed_update and pipes the output lines to a function +that counts the current progress. It writes the total progress to stderr. +Alternative: pv -l -s totallines + + #!/bin/sh + # Progress indicator script. + + # Pass lines as input to stdin and write progress status to stderr. + # progress(totallines) + progress() { + total="$(($1 + 0))" # must be a number, no divide by zero. + test "${total}" -le 0 -o "$1" != "${total}" && return + LC_ALL=C awk -v "total=${total}" ' + { + counter++; + percent = (counter * 100) / total; + printf("\033[K") > "/dev/stderr"; # clear EOL + print $0; + printf("[%s/%s] %.0f%%\r", counter, total, percent) > "/dev/stderr"; + fflush(); # flush all buffers per line. + } + END { + printf("\033[K") > "/dev/stderr"; + }' + } + + # Counts the feeds from the sfeedrc config. + countfeeds() { + count=0 + . "$1" + feed() { + count=$((count + 1)) + } + feeds + echo "${count}" + } + + config="${1:-$HOME/.sfeed/sfeedrc}" + total=$(countfeeds "${config}") + sfeed_update "${config}" | progress "${total}" + +- - - + Counting unread and total items -------------------------------