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- README V1.0 21.jan.93 HWG
- V1.1 20.feb.93 HWG Patch level 2
-
-
- Ok, you are probably familiar with the RCS distributed on Fish 281/282 and
- Fish 451. It's some 4.x version which I will refer to as "Fish RCS". The
- current version is (to my knowledge) 5.6.
-
- This archive contains a complete port of RCS 5.6, GNU DIFF 1.15 and my LP
- utility to support paged diff outputs. This file contains _all_ the Amiga
- specific information. READ IT!
-
-
- First of all:
-
- - The version of this readme file states the patch level HWGRCS is
- currently at. DO NOT APPLY PATCHES LESS OR EQUAL TO THIS LEVEL! They
- are already included! Patchfiles are called "hwgrcsp<x>.lha" where
- <x> is the patch number.
-
- - Thanks to Hans-Joachim Widmaier (jbhr@sofal.adsp.sub.org) who
- supplied me with the sources to RCS 5.6 and GNU DIFF 1.15. He
- prepared the complete docs including the AmigaGuideĀ® file, too.
-
- - Though the names of all the executables are unchanged, I called this
- distribution HWGRCS instead of just RCS. I hope to avoid confusion
- about what people refer to this way. So if you or anybody refers to
- _this_ stuff, please call it HWGRCS. This way I get the blame and
- glory for what I did and maybe a chance to hear about bugs. :-)
-
- - The archive contains GNUDIFF 1.15 in HWGDIFF and RCS 5.6 in HWGRCS.
- The binaries are in the BIN directory. Please leave them there and
- read "Installation" below.
-
- - DISCLAIMER: I HOPE THIS STUFF HELPS YOU AS IT DOES ME. IF IT
- TRASHES YOUR SOURCES OR DOES ANY OTHER DAMAGE TO YOU OR YOUR COMPUTER
- I WON'T BE HELD RESPONSIBLE FOR IT IN ANY CASE!
-
- Please read the GNU file "COPYING". Especially the NO WARRANTY stuff
- (11. and 12. I think).
-
- I intend to support this release as I use and need HWGRCS myself.
- Please note that I don't want to charge anybody any fee for
- supporting HWGRCS. But if you think this is absolutely great SW, I
- don't mind if you send me something nice and useful for supporting
- it, even though it isn't actually giftware or shareware. If you
- make commercial use of HWGRCS I apply to your conscience with this.
- I'm trying to be a starving greedy artist ... ;^) BTW, jbhr really
- always helped me out in a matter of hours ... :-)
-
- - If this readme is dated 21.jan.93 you get the first public release of
- HWGRCS. So be extra careful.
-
- - I did minor modifications to the source in various places for
- compatibility with SAS/C 6.1. The makefiles were changed, too.
- This changes were rather carefully done (I hope). All of HWGRCS
- including the diff stuff compiles nicely under SAS/C 6.1. The
- original makefiles are named "makefile" and the new SAS/C 6.1
- makefiles "smakefile".
- Note that SAS/C <=6.2 is missing a few "const" keywords in its
- standard headers. You need to add them according to the SAS/C
- documentation to avoid compiler errors.
-
- - HWGRCS 5.6 depends on >=V37 being around. I use it only with >=V39.
-
- - You won't find any Amiga specific notes in the original readmes. I
- left as much unchanged as I could.
-
- - Bugs most likely have to do with me porting HWGRCS, so the bug report
- address mentioned in the original docs won't be of much use to you.
-
-
- Limitations:
-
- - HWGRCS doesn't support AmigaDOS links yet. I might add this. Don't
- know yet. Have to do some research about what u*ix does ...
-
- - No user and group id stuff for networking yet. I'll try to add this
- if possible once it is clear to me how all this stuff really hangs
- together.
-
-
- Enhancements:
-
- - The original RCS looks into the "RCS/" directory for RCS files and
- checks the current directory, too. I added the "RCS_link" feature of
- "Fish RCS" to HWGRCS. Now HWGRCS looks for the directory name to use
- in this order:
-
- 1.) Use the first line of the file "RCS_link" in the working
- directory if it exists. A slash is added if necessary.
-
- 2.) Check ENV:RCS/DIRECTORY for the name. A slash is added if
- necessary.
-
- 3.) Use "RCS/" as name.
-
- The first one found will be used. There is no recheck for the other
- alternatives as this would require major changes to the source.
- I currently don't intend to implement that as it might break a lot
- that I don't see.
-
- - Everything should be residentable.
-
- - You'll find an AmigaDOS implementation of rcsfreeze, too.
- There is one change though which I find useful. If you have a default
- branch set for a file, this branch number is used to freeze the
- revision instead of the head value. Just look at the script.
-
- - I put in a quick hack: You'll find a modified SAS/C 6.1 _main.c in
- the HWGRCS source. This _main.c does filename expansion via the V37
- pattern matching functions for any argument that
-
- - starts with a letter, digit, underscore, colon, slash or
- on of '#', '?', '*', '(', '~'
- - and contains at least one of '#', '?', '*'
-
- As you see it won't expand unix style options. I needed this as the
- shell doesn't support command lines of arbitrary length and the
- standard SAS/C startup doesn't support more than 32 arguments.
- My _main.c should be able to handle _lots_ of arguments. So you might
- end up with a really large argc value ;-)
-
- Now you can do a "ci (#?.c|#?.h)" just by typing it :-)
-
- I say this is a hack for several reasons:
-
- 1. Anything that fulfills the criteria mentioned above is
- considered a filename. No matter what it really is.
- 2. I put this together _quick_ without doing major testing.
- 3. This filename expansion is done on startup. Things like RCS_link
- won't be checked.
-
- - You'll find a tiny script there, too: setuprcs
- This script sets up an RCS directory and the appropriate RCS_link
- file for you in the current directory. I suggest you use it. Makes
- life a lot easier.
-
- - If you hit CTRL-C the original RCS left you with a partially written
- lockfile. I put in a fix that makes this temporary file removeable
- for HWGRCS. I don't think this will break anything.
-
- - HWGRCS supports comment leaders for .a, .asm, .i, and .fd files. The
- comment leader for these files is "* ".
-
- Bugs fixed:
-
- - The first release of HWGRCS had two bugs:
-
- - DIFF had problems with the AmigaDOS filepath format
-
- - "-M" did not work with the appropriate rcs commands because of a
- library bug in SAS/C.
-
-
- Special Notes:
-
- - There is an environment variable RCSINIT mentioned in the manuals.
- With HWGRCS this is actually RCS/INIT to keep everything pertaining
- to HWGRCS in one place.
-
- - I used a PIPE: based popen implementation for diff3 written by Rick
- Schaeffer modified in a few places for SAS/C 6.1 compatibility.
- Thanks to Georg Sassen for emailing me the source for it.
-
- - HWGRCS won't work if your timezone isn't set. So you definitely NEED
- TO SET THE TZ ENVIRONMENT VARIABLE CORRECTLY!
-
- The SAS/C TZ format is
-
- "aaabbbccc"
-
- aaa the name of your timezone like CST or MET.
- HWGRCS supportds a huge amount of names. You shouldn't
- have a problem finding one that fits you needs.
- Just set TZ, checkk in some dummy file and look the
- date with the rlog command to see if it works.
-
- bbb the offset in hours to GMT.
-
- ccc If this is present the internal SAS/C variable
- __daylight will be set. As HWGRCS accepts timezone
- names referring to daylight savings time, I suggest you
- don't use this field. It's not tested.
-
- On my machine I use currently "MET0" for ENV:TZ
-
- TZ is not stored in ENV:RCS as it should be of "global" use to you.
-
- - As GNUDIFF 1.15 works with the ISO character set instead of ASCII,
- you won't have problems with e.g. german umlauts or the copyright
- sign as you had with "Fish RCS".
-
- - I put version strings in the executables. So please report the output
- of the VERSION FULL command with any bugs.
-
- - I partially ported the "rcstest" script to the amiga. It is in the
- source as "rcstestamiga". If anybody completes it by just using
- standard shell commands, I wouldn't mind recieving a copy.
-
- - If anybody gets this to Fred Fish before I do, and mentions
- Hans-Joachim Widmaier and me correctly in the contents entry, I
- wouldn't mind either.
-
- - diff can produce paged output by calling PR. I changed this to call
- my LP utility. You might want to do a "LP ?" to check it out. It is
- an AmigaOS style program which supports the current printer
- preferences and prints to PRT: if you don't say otherwise. Just use
- e.g. OUTPUT=TST and play with it. You might like it.
- I did LP because that's about the only small tool I missed on the
- Amiga. Something like the old N*rton LinePrint.
-
- - The AmigaGuide file works with V39. Don't know about anything else.
-
-
- Installation:
-
- - Put the archive stuff anywhere you want it. The relevant executables
- are in BIN.
-
- - Add an "Assign RCS: <anywhere/BIN>" and a "Path RCS:" to your
- S:User-Startup
- YOu might want to add the path statement before e.g. your compiler
- path. GNU diff is _very_ powerful.
-
- - You might need to raise your stack value. I haven't checked this. I
- always use 32K for any shell and I'm fine.
-
- - Set up your timezone with e.g. "SetEnv TZ MET0" or "SetEnv TZ CST6".
- Please read "Special Notes" above!
-
- - Don't forget to copy ENV:TZ to ENVARC:TZ!
-
- - Before using it, read at least some of the docs in HWGRCS/MAN!
-
-
- Please report bugs, enhancement request etc. concerning HWGRCS to me:
-
- Heinz Wrobel
- Karlstr. 16
- 8035 Gauting
- Germany
-
- FAX + 49 89 850 51 25
-
- heinz@edohwg.adsp.sub.org
-
- cbmehq!cbmger!edohwg!heinz@cbmvax.commodore.com
-
-
- Please note that I'm not related to C=!
-
- Well, have fun with it.
-
-
- Heinz Wrobel
-
-