rcs2log

MSYS在windows下模拟了一个类unix的终端

		set x $loginFullnameMailaddr
		login=$2
		fullname=$3
		mailaddr=$4
		initialize_fullname="$initialize_fullname
			fullname[\"$login\"] = \"$fullname\""
		initialize_mailaddr="$initialize_mailaddr
			mailaddr[\"$login\"] = \"$mailaddr\""
	done
	IFS=$oldIFS
esac

case $llogout in
?*) sort -u -o $llogout <<EOF || exit
$logins
EOF
esac
output_authors='/^date: / {
	if ($2 ~ /^[0-9]*[-\/][0-9][0-9][-\/][0-9][0-9]$/ && $3 ~ /^[0-9][0-9]:[0-9][0-9]:[0-9][0-9][-+0-9:]*;$/ && $4 == "author:" && $5 ~ /^[^;]*;$/) {
		print substr($5, 1, length($5)-1)
	}
}'
authors=`
	$AWK "$output_authors" <$rlogout |
	case $llogout in
	'') sort -u;;
	?*) sort -u | comm -23 - $llogout
	esac
`
case $authors in
?*)
	cat >$llogout <<EOF || exit
$authors
EOF
	initialize_author_script='s/["\\]/\\&/g; s/.*/author[\"&\"] = 1/'
	initialize_author=`sed -e "$initialize_author_script" <$llogout`
	awkscript='
		BEGIN {
			alphabet = "abcdefghijklmnopqrstuvwxyz"
			ALPHABET = "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
			'"$initialize_author"'
		}
		{
			if (author[$1]) {
				fullname = $5
				if (fullname ~ /[0-9]+-[^(]*\([0-9]+\)$/) {
					# Remove the junk from fullnames like "0000-Admin(0000)".
					fullname = substr(fullname, index(fullname, "-") + 1)
					fullname = substr(fullname, 1, index(fullname, "(") - 1)
				}
				if (fullname ~ /,[^ ]/) {
					# Some sites put comma-separated junk after the fullname.
					# Remove it, but leave "Bill Gates, Jr" alone.
					fullname = substr(fullname, 1, index(fullname, ",") - 1)
				}
				abbr = index(fullname, "&")
				if (abbr) {
					a = substr($1, 1, 1)
					A = a
					i = index(alphabet, a)
					if (i) A = substr(ALPHABET, i, 1)
					fullname = substr(fullname, 1, abbr-1) A substr($1, 2) substr(fullname, abbr+1)
				}

				# Quote quotes and backslashes properly in full names.
				# Do not use gsub; traditional awk lacks it.
				quoted = ""
				rest = fullname
				for (;;) {
					p = index(rest, "\\")
					q = index(rest, "\"")
					if (p) {
						if (q && q<p) p = q
					} else {
						if (!q) break
						p = q
					}
					quoted = quoted substr(rest, 1, p-1) "\\" substr(rest, p, 1)
					rest = substr(rest, p+1)
				}

				printf "fullname[\"%s\"] = \"%s%s\"\n", $1, quoted, rest
				author[$1] = 0
			}
		}
	'

	initialize_fullname=`
		{
			(getent passwd $authors) ||
			(
				cat /etc/passwd
				for author in $authors
				do NIS_PATH= nismatch $author passwd.org_dir
				done
				ypmatch $authors passwd
			)
		} 2>/dev/null |
		$AWK -F: "$awkscript"
	`$initialize_fullname
esac


# Function to print a single log line.
# We don't use awk functions, to stay compatible with old awk versions.
# `Log' is the log message (with \n replaced by \001).
# `files' contains the affected files.
printlogline='{

	# Following the GNU coding standards, rewrite
	#	* file: (function): comment
	# to
	#	* file (function): comment
	if (Log ~ /^\([^)]*\): /) {
		i = index(Log, ")")
		files = files " " substr(Log, 1, i)
		Log = substr(Log, i+3)
	}

	# If "label: comment" is too long, break the line after the ":".
	sep = " "
	if ('"$length"' <= '"$indent"' + 1 + length(files) + index(Log, SOH)) sep = "\n" indent_string

	# Print the label.
	printf "%s*%s:", indent_string, files

	# Print each line of the log, transliterating \001 to \n.
	while ((i = index(Log, SOH)) != 0) {
		logline = substr(Log, 1, i-1)
		if (logline ~ /[^'"$tab"' ]/) {
			printf "%s%s\n", sep, logline
		} else {
			print ""
		}
		sep = indent_string
		Log = substr(Log, i+1)
	}
}'

# Pattern to match the `revision' line of rlog output.
rlog_revision_pattern='^revision [0-9]+\.[0-9]+(\.[0-9]+\.[0-9]+)*(['"$tab"' ]+locked by: [^'"$tab"' $,.0-9:;@]*[^'"$tab"' $,:;@][^'"$tab"' $,.0-9:;@]*;)?['"$tab"' ]*$'

case $hostname in
'')
	hostname=`(
		hostname || uname -n || uuname -l || cat /etc/whoami
	) 2>/dev/null` || {
		echo >&2 "$0: cannot deduce hostname"
		exit 1
	}

	case $hostname in
	*.*) ;;
	*)
		domainname=`(domainname) 2>/dev/null` &&
		case $domainname in
		*.*) hostname=$hostname.$domainname
		esac
	esac
esac


# Process the rlog output, generating ChangeLog style entries.

# First, reformat the rlog output so that each line contains one log entry.
# Transliterate \n to \001 so that multiline entries fit on a single line.
# Discard irrelevant rlog output.
$AWK <$rlogout '
	BEGIN { repository = "'"$repository"'" }
	/^RCS file:/ {
		if (repository != "") {
			filename = $3
			if (substr(filename, 1, length(repository) + 1) == repository "/") {
				filename = substr(filename, length(repository) + 2)
			}
			if (filename ~ /,v$/) {
				filename = substr(filename, 1, length(filename) - 2)
			}
			if (filename ~ /(^|\/)Attic\/[^\/]*$/) {
				i = length(filename)
				while (substr(filename, i, 1) != "/") i--
				filename = substr(filename, 1, i - 6) substr(filename, i + 1)
			}
		}
		rev = "?"
	}
	/^Working file:/ { if (repository == "") filename = $3 }
	/'"$rlog_revision_pattern"'/, /^(-----------*|===========*)$/ {
		line = $0
		if (line ~ /'"$rlog_revision_pattern"'/) {
			rev = $2
			next
		}
		if (line ~ /^date: [0-9][- +\/0-9:]*;/) {
			date = $2
			if (date ~ /\//) {
				# This is a traditional RCS format date YYYY/MM/DD.
				# Replace "/"s with "-"s to get ISO format.
				newdate = ""
				while ((i = index(date, "/")) != 0) {
					newdate = newdate substr(date, 1, i-1) "-"
					date = substr(date, i+1)
				}
				date = newdate date
			}
			time = substr($3, 1, length($3) - 1)
			author = substr($5, 1, length($5)-1)
			printf "%s %s %s %s %s %c", filename, rev, date, time, author, 1
			rev = "?"
			next
		}
		if (line ~ /^branches: /) { next }
		if (line ~ /^(-----------*|===========*)$/) { print ""; next }
		if (line == "Initial revision" || line ~ /^file .+ was initially added on branch .+\.$/) {
			line = "New file."
		}
		printf "%s%c", line, 1
	}
' |

# Now each line is of the form
# FILENAME REVISION YYYY-MM-DD HH:MM:SS[+-TIMEZONE] AUTHOR \001LOG
#	where \001 stands for a carriage return,
#	and each line of the log is terminated by \001 instead of \n.
# Sort the log entries, first by date+time (in reverse order),
# then by author, then by log entry, and finally by file name and revision
# (just in case).
sort +2 -4r +4 +0 |

# Finally, reformat the sorted log entries.
$AWK '
	BEGIN {
		logTZ = "'"$logTZ"'"
		revision = "'"$revision"'"

		# Some awk variants do not understand "\001", so we have to
		# put the char directly in the file.
		SOH="
" # <-- There is a single SOH (octal code 001) here.

		# Initialize the fullname and mailaddr associative arrays.
		'"$initialize_fullname"'
		'"$initialize_mailaddr"'

		# Initialize indent string.
		indent_string = ""
		i = '"$indent"'
		if (0 < '"$tabwidth"')
			for (;  '"$tabwidth"' <= i;  i -= '"$tabwidth"')
				indent_string = indent_string "\t"
		while (1 <= i--)
			indent_string = indent_string " "
	}

	{
		newlog = substr($0, 1 + index($0, SOH))

		# Ignore log entries prefixed by "#".
		if (newlog ~ /^#/) { next }

		if (Log != newlog || date != $3 || author != $5) {

			# The previous log and this log differ.

			# Print the old log.
			if (date != "") '"$printlogline"'

			# Logs that begin with "{clumpname} " should be grouped together,
			# and the clumpname should be removed.
			# Extract the new clumpname from the log header,
			# and use it to decide whether to output a blank line.
			newclumpname = ""
			sep = "\n"
			if (date == "") sep = ""
			if (newlog ~ /^\{[^'"$tab"' }]*}['"$tab"' ]/) {
				i = index(newlog, "}")
				newclumpname = substr(newlog, 1, i)
				while (substr(newlog, i+1) ~ /^['"$tab"' ]/) i++
				newlog = substr(newlog, i+1)
				if (clumpname == newclumpname) sep = ""
			}
			printf sep
			clumpname = newclumpname

			# Get ready for the next log.
			Log = newlog
			if (files != "")
				for (i in filesknown)
					filesknown[i] = 0
			files = ""
		}
		if (date != $3  ||  author != $5) {
			# The previous date+author and this date+author differ.
			# Print the new one.
			date = $3
			time = $4
			author = $5

			zone = ""
			if (logTZ && ((i = index(time, "-")) || (i = index(time, "+"))))
				zone = " " substr(time, i)

			# Print "date[ timezone]  fullname  <email address>".
			# Get fullname and email address from associative arrays;
			# default to author and author@hostname if not in arrays.
			if (fullname[author])
				auth = fullname[author]
			else
				auth = author
			printf "%s%s  %s  ", date, zone, auth
			if (mailaddr[author])
				printf "<%s>\n\n", mailaddr[author]
			else
				printf "<%s@%s>\n\n", author, "'"$hostname"'"
		}
		if (! filesknown[$1]) {
			filesknown[$1] = 1
			if (files == "") files = " " $1
			else files = files ", " $1
			if (revision && $2 != "?") files = files " " $2
		}
	}
	END {
		# Print the last log.
		if (date != "") {
			'"$printlogline"'
			printf "\n"
		}
	}
' &&


# Exit successfully.

exec rm -f $llogout $rlogout

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