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Added a man page for the ctm(1) command, as well as a format description

Browse Source 
for the CTM deltas.

Largely based on Poul-Henning's README, and the source code.
This commit is contained in:
Joerg Wunsch 1995-03-25 18:14:26 +00:00
parent feae7fb7d3
commit fee6e7cc49
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=7368
3 changed files with 355 additions and 2 deletions
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5
usr.sbin/ctm/ctm/Makefile
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@ -6,7 +6,7 @@
# this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
# ----------------------------------------------------------------------------
#
# $Id: Makefile,v 1.6 1994/10/24 20:09:18 phk Exp $
# $Id: Makefile,v 1.7 1995/03/04 20:36:44 phk Exp $
#
PROG= ctm
@ -15,7 +15,8 @@ SRCS= ctm.c ctm_input.c ctm_pass1.c ctm_pass2.c ctm_pass3.c \
ctm_syntax.c ctm_ed.c
LDADD+= -lmd
DPADD+= ${LIBMD}
NOMAN= 1
MAN1= ctm.1
MAN5= ctm.5
CFLAGS+= -Wall -g
.if exists(${.CURDIR}/../../Makefile.inc)

146
usr.sbin/ctm/ctm/ctm.1 Normal file
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@ -0,0 +1,146 @@
.\"----------------------------------------------------------------------------
.\""THE BEER-WARE LICENSE" (Revision 42):
.\"<joerg@freebsd.org> wrote this file. As long as you retain this notice you
.\"can do whatever you want with this stuff. If we meet some day, and you think
.\"this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
.\"----------------------------------------------------------------------------
.\"
.\" This manual page is partially obtained from Poul-Hennings CTM README
.\" file.
.\"
.\" CTM and ctm(1) by <phk@login.dknet.dk>
.\"
.\" $Id$
.\"
.Dd Mar 25, 1995
.Os
.Dt CTM 1
.Sh NAME
.Nm ctm
.Nd source code mirror program
.Sh SYNOPSIS
.Nm ctm
.Op Fl cFpPqv
.Op Fl T Ar tmpdir
.Ar file Op ...
.Sh DESCRIPTION
.Nm Ctm
was originally
.Dq Cvs Through eMail ,
but has since changed scope to be much more general.
.Nm Ctm
is now meant to be the definitive way to make and apply a delta between
two versions of a directory tree.
There are two parts to this, making the delta and applying it. These are two
entirely different things.
.Ss Usage
To apply a CTM delta, you pass it to the
.Nm ctm
command. You can pass a CTM delta on stdin, or you can give the
filename as an argument. If you do the latter, you make life a lot
easier for your self, since the program can accept gzip'ed files and
since it will not have to make a temporary copy of your file. You can
specify multiple deltas at one time, they will be proccessed one at a
time. Deltas that are already applied will be ignored.
The
.Nm ctm
command runs in a number of passes. It will process the entire
input file in each pass, before commencing with the next pass.
Pass 1 will validate that the input file is OK. The syntax, the data
and the global MD5 checksum will be checked. If any of these fail,
.Nm ctm
will never be able to do anything with the file, so it will simply
reject it.
Pass 2 will validate that the directory tree is in the state expected by
the CTM delta. This is done by looking for files and directories which
should/should not exists and by checking the MD5 checksums of files.
Pass 3 will actually apply the delta.
.Nm Ctm
will extract the file hierarchy below its working directory. Absolute
filenames or filenames containing references through
.Sq \&.
and
.Sq \&.\&.
are explicitly prohibited as a security measure.
.Ss Options
.Bl -tag -width indent -compact
.It Fl c
Check it out, don't do anything.
.It Fl F
Force.
.It Fl p
Less paranoid.
.It Fl P
Paranoid.
.It Fl q
Tell us less.
.It Fl T Ar tmpdir
Put temporary files under
.Ar tmpdir .
.It Fl v
Tell us more.
.El
.Sh FILES
.Pa .ctm_status
contains the sequence number of the last CTM delta applied. Changing
or removing this file will greatly confuse
.Nm ctm .
.Sh EXAMPLES
.Bd -literal
cd ~cvs
/usr/sbin/ctm ~ctm/cvs-*
.Ed
.Sh DIAGNOSTICS
Numerous messages, hopefully self-explaining. The
.Dq noise level
can be adjusted with the
.Fl q
and
.Fl v
options.
.Sh SEE ALSO
.Xr ctm 5
.Pq yet to be written .
.Sh HISTORY
The
.Nm ctm
command appeared in FreeBSD 2.1.
.Sh AUTHORS
The CTM system has been designed and implemented by
Poul-Henning Kamp
.Aq phk@FreeBSD.org .

206
usr.sbin/ctm/ctm/ctm.5 Normal file
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@ -0,0 +1,206 @@
.\"----------------------------------------------------------------------------
.\""THE BEER-WARE LICENSE" (Revision 42):
.\"<joerg@freebsd.org> wrote this file. As long as you retain this notice you
.\"can do whatever you want with this stuff. If we meet some day, and you think
.\"this stuff is worth it, you can buy me a beer in return. Poul-Henning Kamp
.\"----------------------------------------------------------------------------
.\"
.\" This manual page is partially obtained from Poul-Hennings CTM README
.\" file.
.\"
.\" CTM and ctm(1) by <phk@login.dknet.dk>
.\"
.\" $Id$
.\"
.Dd March 25, 1995
.Os
.Dt CTM 5
.Sh NAME
.Nm ctm
.Nd source code mirror system
.Sh DESCRIPTION
The
.Nm ctm
system uses a specific file format, called a CTM delta.
CTM deltas consist of control lines and data chunks. Each control
line starts with the letters
.Dq CTM ,
followed by a CTM statement and control data, and continues up to
the end of line.
The CTM statements are as follows.
.Bl -tag -width indent
.It _BEGIN Ar version name number timestamp prefix
This is the overall begin of a CTM delta file. The
.Ar version
field must match the program version
.Pq currently 2.0 .
.Ar Name
is the name and
.Ar number
the sequence number of the CTM service, it is matched against the file
.Pa .ctm_status
to see if the delta has already been applied.
.Ar Timestamp
contains the year, month, day, hour, minute, and second of the
time of delta creation for reference
.Po
followed by the letter
.Sq Z
meaning this is a UTC timestamp
.Pc .
The
.Ar prefix
field is currently always
.Sq \&. .
.It _END Ar md5
This statement ends the CTM delta, the global
.Ar md5
checksum is matched against the entire delta to ensure it has been
transfered correctly.
.It \&FM Ar name uid gid mode md5 count
Make the file
.Ar name ,
the original file had the uid
.Ar uid
.Pq numerical, decimal ,
the gid
.Ar gid
.Pq numerical, decimal ,
mode
.Ar mode
.Pq numerical, octal ,
and the MD5 checksum
.Ar md5 .
The following
.Ar count
bytes data are the contents of the new file.
.It \&FS Ar name uid gid mode md5before md5after count
Substitute the contents of file
.Ar name ,
the original file had the new uid
.Ar uid
.Pq numerical, decimal ,
the new gid
.Ar gid
.Pq numerical, decimal ,
new mode
.Ar mode
.Pq numerical, octal ,
the old MD5 checksum
.Ar md5before ,
and the new MD5 checksum
.Ar md5after .
The following
.Ar count
bytes data are the contents of the new file.
File substitution is used if the commands to edit a file would exceed
the total file length, so substituting it is more efficient.
.It \&FN Ar name uid gid mode md5before md5after count
Edit the file
.Ar name .
The arguments are as above, but the data sections contains an
.Xr ed 1
like script to edit the file contents.
.It \&FR Ar name md5
Remove the file
.Ar name ,
which must match the MD5 checksum
.Ar md5 .
.It \&AS Ar name uid gid mode
The original file
.Ar name
changed its owner to
.Ar uid ,
its group to
.Ar gid ,
and/or its mode to
.Ar mode .
.It \&DM Ar name uid gid mode
The directory
.Ar name
is to be created, it had originally the owner
.Ar uid ,
group
.Ar gid ,
and mode
.Ar mode .
.It \&DR name
The directory
.Ar name
is to be removed.
.El
.Sh EXAMPLES
In the following example, long lines have been folded to make them
printable
.Pq marked by backslashes .
.Bd -literal
CTM_BEGIN 2.0 cvs-cur 485 19950324214652Z .
CTMFR src/sys/gnu/i386/isa/scd.c,v 5225f13aa3c7e458f9dd0d4bb637b18d
CTMFR src/sys/gnu/i386/isa/scdreg.h,v e5af42b8a06f2c8030b93a7d71afb223
CTMDM src/sys/gnu/i386/isa/Attic 0 552 775
CTMFS .ctm_status 545 552 664 d9ccd2a84a9dbb8db56ba85663adebf0 \\
e2a10c6f66428981782a0a18a789ee2e 12
cvs-cur 485
CTMFN CVSROOT/commitlogs/gnu 545 552 664 \\
5d7bc3549140d860bd9641b5782c002d 7fb04ed84b48160c9b8eea84b4c0b6e3 394
a6936 21
ache 95/03/24 09:59:50
Modified: gnu/lib/libdialog kernel.c prgbox.c
Log:
[...]
CTM_END 74ddd298d76215ae45a077a4b6a74e9c
.Ed
.Sh SEE ALSO
.Xr ctm 1 ;
.Xr ed 1 .
.Sh HISTORY
The CTM system has been made publically available in FreeBSD 2.1.
.Sh AUTHORS
The CTM system has been designed and implemented by
Poul-Henning Kamp
.Aq phk@FreeBSD.org .