# $NetBSD: parselist.awk,v 1.16 2009/04/10 16:16:12 apb Exp $ # # Copyright (c) 2002 The NetBSD Foundation, Inc. # All rights reserved. # # This code is derived from software contributed to The NetBSD Foundation # by Luke Mewburn of Wasabi Systems. # # Redistribution and use in source and binary forms, with or without # modification, are permitted provided that the following conditions # are met: # 1. Redistributions of source code must retain the above copyright # notice, this list of conditions and the following disclaimer. # 2. Redistributions in binary form must reproduce the above copyright # notice, this list of conditions and the following disclaimer in the # documentation and/or other materials provided with the distribution. # # THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS # ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED # TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR # PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR # CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS # INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) # ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE # POSSIBILITY OF SUCH DAMAGE. # # # awk -f parselist.awk -v mode=MODE [var=val ...] file1 [...] # # Parse list files file1 [...], generating different output, # depending upon the value of MODE: # # crunch crunchgen(1) config # # install make(1) Makefile to install commands into ${TARGETDIR}, # with an `install' target. # The following environment variables need to be set: # TARGETDIR Directory to populate # # mtree mtree(8) specfile # # populate sh(1) commands to populate ${TARGETDIR} from ${CURDIR} # The following environment variables need to be set: # CURDIR Source directory; make(1)'s ${.CURDIR} # TARGETDIR Directory to populate # # The following environment variables need to be set for all modes: # CRUNCHBIN Name of crunchgen(1) target binary # OBJDIR Object directory; make(1)'s ${.OBJDIR} # # Each line of the input is either a comment (starts with `#'), # or contains one of the following keywords and arguments. # # Before each line is parsed for a keyword, words surrounded by # "${" and "}", and containing only letters, numbers, and `_' # will be replaced by the value of the environment variable of # the same name. I.e., "${MACHINE_ARCH}" will be replaced with the # value of ENVIRON["MACHINE_ARCH"]. # # mode key operation # -------- --------- # C crunch # I install # M mtree # P populate # # mode keyword arg1 [...] description # ---- ------------------ ----------- # # C ARGVLN prog link as per crunchgen(1) `ln' # # P CMD arg1 [...] run CMD as a shell command # # IMP COPY src dest [perm] copy src to dest. perm defaults to 0444 # # IMP COPYDIR src dest recursively copy files under src to # dest. for M, dest is listed first, # followed by the subdirectories in src. # copied directories have mode 0755. # copied files have mode 0444. # # C LIBS libspec ... as per crunchgen(1) `libs' # # IMP LINK src d1 [d2 ...] hard link src to d1, d2, ... # # M MTREE arg1 [...] output arguments `as-is' to specfile # # CIMP PROG prog [links...] program(s) to crunch/mtree/populate. # for I, M & P, the first prog listed # is copied from ${OBJDIR}/${CRUNCHBIN} # and then used as the name to link # all other PROG entries to. # # C SPECIAL prog cmd ... as per crunchgen(1) `special' # # C SRCDIRS dirname ... as per crunchgen(1) `srcdirs' # # IMP SYMLINK src dest [...] symlink src to dest, [...] # BEGIN \ { crunchprog = ""; if (mode != "crunch" && mode != "install" && mode != "mtree" && mode != "populate") errx("Unknown parselist mode '" mode "'"); needvars["CRUNCHBIN"]++ needvars["OBJDIR"]++ if (mode == "install") { needvars["TARGETDIR"]++ } else if (mode == "populate") { needvars["CURDIR"]++ } for (nv in needvars) { if (! (nv in ENVIRON)) errx("Environment variable " nv " not defined"); } print "#"; print "# This file is automatically generated by"; print "#\tparselist mode=" mode; print "#"; print ""; if (mode == "install") { print ".include " print "install:" } else if (mode == "mtree") { print "/unset\tall"; print "/set\ttype=file uname=root gname=wheel"; print; } else if (mode == "populate") { print "cd " ENVIRON["CURDIR"]; print; } } /^$/ || /^#/ \ { print; next; } # replace ${FOO} with ENVIRON["FOO"] # /\$\{[A-Za-z0-9_]+\}/ \ { while (match($0, /\$\{[A-Za-z0-9_]+\}/) > 0) { v = substr($0, RSTART + 2, RLENGTH - 3); if (! (v in ENVIRON)) err("Variable " v " is not in the environment"); else sub(/\$\{[A-Za-z0-9_]+\}/, ENVIRON[v]); } } $1 == "COPY" \ { if (NF < 3 || NF > 4) err("Usage: COPY src dest [perm]"); if (mode == "install" || mode == "mtree" || mode == "populate") copy($2, $3, $4); next; } $1 == "COPYDIR" \ { if (NF != 3) err("Usage: COPYDIR src dest"); srcdir=$2; destdir=$3; if (mode == "mtree") { printf("./%s type=dir mode=755\n", destdir); command="cd " srcdir " && find . -type d -print" while (command | getline dir) { gsub(/^\.\//, "", dir); if (dir == ".") continue; printf("./%s/%s type=dir mode=755\n", destdir, dir); } close(command); } if (mode == "install" || mode == "mtree" || mode == "populate") { command="cd " srcdir " && find . -type f -print" while (command | getline srcfile) { gsub(/^\.\//, "", srcfile); copy(srcdir "/" srcfile, destdir "/" srcfile, ""); } close(command); } next; } $1 == "LIBS" || $1 == "SPECIAL" || $1 == "SRCDIRS" \ { if (NF < 2) err("Usage: " $1 " args..."); if (mode == "crunch") { $1 = tolower($1); print; } next; } $1 == "PROG" \ { if (NF < 2) err("Usage: PROG prog [link ...]"); if (mode == "crunch") { prog = basename($2); print "progs " prog; for (i = 3; i <= NF; i++) print "ln " prog " " basename($i); } else { for (i = 2; i <= NF; i++) { if (crunchprog == "") { crunchprog = $i; copy(ENVIRON["OBJDIR"] "/" ENVIRON["CRUNCHBIN"], crunchprog, 555); continue; } link(crunchprog, $i, 555); } } next; } $1 == "ARGVLN" \ { if (NF != 3) err("Usage: ARGVLN prog link"); if (mode == "crunch") { $1 = "ln"; print; } next; } $1 == "LINK" \ { if (NF < 3) err("Usage: LINK prog link [...]"); if (mode == "install" || mode == "mtree" || mode == "populate") { for (i = 3; i <= NF; i++) link($2, $i, 444); } next; } $1 == "SYMLINK" \ { if (NF < 3) err("Usage: SYMLINK prog link [...]"); if (mode == "install" || mode == "mtree" || mode == "populate") { for (i = 3; i <= NF; i++) symlink($2, $i); } next; } $1 == "CMD" \ { if (NF < 2) err("Usage: CMD ..."); if (mode == "populate") { printf("(cd %s;", ENVIRON["TARGETDIR"]); for (i = 2; i <= NF; i++) printf(" %s", $i); print ") || exit 1"; } next; } $1 == "MTREE" \ { if (NF < 2) err("Usage: MTREE ..."); if (mode == "mtree") { sub(/^[^ \t]+[ \t]+/, ""); # strip first word ("MTREE") print; } next; } { err("Unknown keyword '" $1 "'"); } function basename (file) \ { gsub(/[^\/]+\//, "", file); return file; } function copy (src, dest, perm) \ { if (perm == "") perm = 444; if (mode == "install") { printf("\t${INSTALL_FILE} -o ${BINOWN} -g ${BINGRP}" \ " -m %s %s %s/%s\n", perm, src, ENVIRON["TARGETDIR"], dest) } else if (mode == "mtree") { printf("./%s mode=%s\n", dest, perm); } else { printf("rm -rf %s/%s\n", ENVIRON["TARGETDIR"], dest); printf("cp %s %s/%s\n", src, ENVIRON["TARGETDIR"], dest); printf("chmod %s %s/%s\n", perm, ENVIRON["TARGETDIR"], dest); } } function link (src, dest, perm) \ { if (mode == "install") { printf("\t${INSTALL_LINK} -o ${BINOWN} -g ${BINGRP}" \ " -m %s %s/%s %s/%s\n", perm, ENVIRON["TARGETDIR"], src, ENVIRON["TARGETDIR"], dest) } else if (mode == "mtree") { printf("./%s mode=%s\n", dest, perm); } else { printf("rm -rf %s/%s\n", ENVIRON["TARGETDIR"], dest); printf("(cd %s; ln %s %s) || exit 1\n", ENVIRON["TARGETDIR"], src, dest); } } function symlink (src, dest) \ { if (mode == "install") { printf("\t${INSTALL_SYMLINK} %s/%s %s/%s\n", ENVIRON["TARGETDIR"], src, ENVIRON["TARGETDIR"], dest) } else if (mode == "mtree") { printf("./%s type=link link=%s\n", dest, src); } else { printf("rm -rf %s/%s\n", ENVIRON["TARGETDIR"], dest); printf("(cd %s; ln -s %s %s) || exit 1\n", ENVIRON["TARGETDIR"], src, dest); } } function err(msg) \ { printf("parselist: %s at line %d of input.\n", msg, NR) >"/dev/stderr"; exit 1; } function errx(msg) \ { printf("parselist: %s.\n", msg) >"/dev/stderr"; exit 1; }