commit 7feab0fd885c1c93344fd427904eae91943493b7
parent f18f4818ed2c992aa9b7b91c74bb9ce7cc1bc745
Author: Hiltjo Posthuma <hiltjo@codemadness.org>
Date: Fri, 15 Jan 2021 18:31:52 +0100
README: newsboat sqlite3 export script: improvements
- Export read/unread state to a separate plain-text "urls" file, line by line.
- Handle white-space control-chars better.
From the sfeed(1) man page:
" The fields: title, id, author are not allowed to have newlines and TABs,
all whitespace characters are replaced by a single space character.
Control characters are removed."
So do the reverse for newsboat aswell: change white-space characters which are
also control-characters (such as TABs and newlines) to a single space
character.
Diffstat:
| M | README | | | 31 | ++++++++++++++++++++++--------- |
1 file changed, 22 insertions(+), 9 deletions(-)
diff --git a/README b/README
@@ -628,10 +628,12 @@ sfeedrc file and change the curl options "-L --max-redirs 0".
Shellscript to export existing newsboat cached items from sqlite3 to the sfeed
TSV format.
-
+
#!/bin/sh
# Export newsbeuter/newsboat cached items from sqlite3 to the sfeed TSV format.
# The data is split per file per feed with the name of the newsboat title/url.
+ # It writes the urls of the read items line by line to a "urls" file.
+ #
# Dependencies: sqlite3, awk.
#
# Usage: create some directory to store the feeds, run this script.
@@ -653,8 +655,8 @@ TSV format.
SELECT
i.pubDate, i.title, i.url, i.content, i.guid, i.author,
i.enclosure_url,
- f.rssurl AS rssurl, f.title AS feedtitle --,
- -- i.id, i.unread, i.enclosure_type, i.enqueued, i.flags, i.deleted,
+ f.rssurl AS rssurl, f.title AS feedtitle, i.unread --,
+ -- i.id, i.enclosure_type, i.enqueued, i.flags, i.deleted,
-- i.base
FROM rss_feed f
INNER JOIN rss_item i ON i.feedurl = f.rssurl
@@ -668,13 +670,19 @@ TSV format.
FS = "\x1f";
RS = "\x1e";
}
- # strip all control-chars for normal fields.
- function strip(s) {
+ # normal non-content fields.
+ function field(s) {
+ gsub("^[[:space:]]*", "", s);
+ gsub("[[:space:]]*$", "", s);
+ gsub("[[:space:]]", " ", s);
gsub("[[:cntrl:]]", "", s);
return s;
}
- # escape chars in content field.
- function escape(s) {
+ # content field.
+ function content(s) {
+ gsub("^[[:space:]]*", "", s);
+ gsub("[[:space:]]*$", "", s);
+ # escape chars in content field.
gsub("\\\\", "\\\\", s);
gsub("\n", "\\n", s);
gsub("\t", "\\t", s);
@@ -690,9 +698,14 @@ TSV format.
print "Writing file: \"" fname "\" (title: " $9 ", url: " $8 ")" > "/dev/stderr";
}
- print $1 "\t" strip($2) "\t" strip($3) "\t" escape($4) "\t" \
- "html" "\t" strip($5) "\t" strip($6) "\t" strip($7) \
+ print $1 "\t" field($2) "\t" field($3) "\t" content($4) "\t" \
+ "html" "\t" field($5) "\t" field($6) "\t" field($7) \
> fname;
+
+ # write urls of the read items to a file line by line.
+ if ($10 == "0") {
+ print $3 > "urls";
+ }
}'
