mirror of
git://projects.qi-hardware.com/xburst-tools.git
synced 2024-11-01 16:25:20 +02:00
114 lines
2.7 KiB
Awk
114 lines
2.7 KiB
Awk
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#!/bin/awk -f
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# Generate debian/changelog.upstream from debian/changelog and
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# the git revision log. Inspired by Gerrit Pape’s
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# debian/changelog.upstream.sh, from the git-core Debian package.
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#
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# Requires a working /dev/stderr.
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#
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# Usage:
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# dpkg-parsechangelog --format rfc822 --all |
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# awk -f debian/changelog.upstream.awk
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# If argument matches /^Version: /, return remaining text.
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# Result is nonempty if and only if argument matches.
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function version_line(line) {
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if (line ~ /^Version: /) {
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sub(/^Version: /, "", line);
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return line;
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}
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return "";
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}
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# If argument matches /^\*.* from commit /, return remaining text.
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# Result is nonempty if and only if argument matches.
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function commit_id_line(line) {
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if (line ~ / from commit /) {
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sub(/^.* from commit /, "", line);
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sub(/[(][Cc]loses.*/, "", line);
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sub(/[^0-9a-f]*$/, "", line);
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return line;
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}
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return "";
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}
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# Read standard input, scanning for a changelog entry of the
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# form “* New snapshot, taken from commit <blah>.”
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# Result is <blah>.
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# Result is empty and writes a message to standard error if no such entry is
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# found before the next Version: line with a different upstream
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# version (or EOF).
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# Argument is the upstream version sought.
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function read_commit_id(upstream, line,version,corresponding_upstream,commit) {
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while (getline line) {
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version = version_line(line);
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corresponding_upstream = version;
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sub(/-[^-]*$/, "", corresponding_upstream);
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if (version != "" && corresponding_upstream != upstream)
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break;
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commit = commit_id_line(line);
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if (commit != "")
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return commit;
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}
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print "No commit id for " upstream >> "/dev/stderr";
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return "";
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}
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BEGIN {
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last = "none";
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last_cid = "none";
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cl = "debian/changelog.upstream";
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}
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# Add a list of all revisions up to last to debian/changelog.upstream
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# and set last = new_cid.
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# new is a user-readable name for the commit new_cide.
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function add_version(new,new_cid, limiter,versionline,command,line) {
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if (last == "none") {
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printf "" > cl;
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last = new;
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last_cid = new_cid;
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return 0;
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}
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if (new == "none") {
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versionline = "Version " last;
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limiter = "";
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} else {
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versionline = "Version " last "; changes since " new ":";
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limiter = new_cid "..";
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}
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print versionline >> cl;
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gsub(/./, "-", versionline);
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print versionline >> cl;
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print "" >> cl;
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command = "git shortlog \"" limiter last_cid "\"";
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while(command | getline line)
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print line >> cl;
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if (new != "none")
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print "" >> cl;
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last = new;
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last_cid = new_cid;
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}
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{
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version = version_line($0);
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if (version != "") {
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# strip Debian revision
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upstream_version = version;
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sub(/-[^-]*$/, "", upstream_version);
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commit = read_commit_id(upstream_version);
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if (commit == "")
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exit 1;
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add_version(upstream_version, commit);
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}
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}
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END {
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add_version("none", "none");
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}
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