checkinstall 脚本
checkinstall 脚本验证修补程序是否适合于此特定软件包。一旦确认这一点，该脚本将构建修补程序列表和修补程序信息列表，然后将它们插入到响应文件中，以便合并到软件包数据库中。
修补程序列表是已经影响当前软件包的修补程序的列表。这一修补程序列表记录在已安装的软件包的 pkginfo 文件中，记录该列表的行可能如下所示：
PATCHLIST=patch_id patch_id ... |
修补程序信息列表是当前修补程序所依赖的修补程序的列表。这一修补程序列表也记录在 pkginfo 文件中，记录该列表的行可能如下所示。
PATCH_INFO_103203-01=Installed... Obsoletes:103201-01 Requires: \ Incompatibles: 120134-01 |
注 –
这些行（及其格式）被声明为公共接口。任何为 Solaris 软件包发行修补程序的公司都应该相应地更新此列表。当修补程序交付时，修补程序内的每个软件包都包含一个执行此任务的 checkinstall 脚本。该同一个 checkinstall 脚本还会更新其他一些特定于修补程序的参数。这是新的修补程序体系结构，称为“直接实例修补”。
在此示例中，原始软件包及其修补程序都存在于同一个目录中。两个原始软件包命名为 SUNWstuf.v1 和 SUNWstuf.v2，而它们的修补程序分别命名为 SUNWstuf.p1 和 SUNWstuf.p2。这意味着，过程脚本可能很难判断这些文件来自哪个目录，因为对于 PKG 参数除去了软件包名称中的点 (".") 之后的所有内容，并且 PKGINST 环境变量是指已安装的实例，而不是源实例。因此，过程脚本可以找到源目录，checkinstall 脚本（始终从源目录执行）执行查询并且将位置作为变量 SCRIPTS_DIR 传递。如果源目录中只有一个名为 SUNWstuf 的软件包，则过程脚本可能已经使用 $INSTDIR/$PKG 找到它。
# checkinstall script to control a patch installation.
# directory format options.
#
# @(#)checkinstall 1.6 96/09/27 SMI
#
# Copyright (c) 1995 by Sun Microsystems, Inc.
# All rights reserved
#
PATH=/usr/sadm/bin:$PATH
INFO_DIR=`dirname $0`
INFO_DIR=`dirname $INFO_DIR` # one level up
NOVERS_MSG="PaTcH_MsG 8 Version $VERSION of $PKG is not installed on this system."
ALRDY_MSG="PaTcH_MsG 2 Patch number $Patch_label is already applied."
TEMP_MSG="PaTcH_MsG 23 Patch number $Patch_label cannot be applied until all \
restricted patches are backed out."
# Read the provided environment from what may have been a request script
. $1
# Old systems can't deal with checkinstall scripts anyway
if [ "$PATCH_PROGRESSIVE" = "true" ]; then
exit 0
fi
#
# Confirm that the intended version is installed on the system.
#
if [ "${UPDATE}" != "yes" ]; then
echo "$NOVERS_MSG"
exit 3
fi
#
# Confirm that this patch hasn't already been applied and
# that no other mix-ups have occurred involving patch versions and
# the like.
#
Skip=0
active_base=`echo $Patch_label | nawk '
{ print substr($0, 1, match($0, "Patchvers_pfx")-1) } '`
active_inst=`echo $Patch_label | nawk '
{ print substr($0, match($0, "Patchvers_pfx")+Patchvers_pfx_lnth) } '`
# Is this a restricted patch?
if echo $active_base | egrep -s "Patchstrict_str"; then
is_restricted="true"
# All restricted patches are backoutable
echo "PATCH_NO_UNDO=" >> $1
else
is_restricted="false"
fi
for patchappl in ${PATCHLIST}; do
# Is this an ordinary patch applying over a restricted patch?
if [ $is_restricted = "false" ]; then
if echo $patchappl | egrep -s "Patchstrict_str"; then
echo "$TEMP_MSG"
exit 3;
fi
fi
# Is there a newer version of this patch?
appl_base=`echo $patchappl | nawk '
{ print substr($0, 1, match($0, "Patchvers_pfx")-1) } '`
if [ $appl_base = $active_base ]; then
appl_inst=`echo $patchappl | nawk '
{ print substr($0, match($0, "Patchvers_pfx")\
+Patchvers_pfx_lnth) } '`
result=`expr $appl_inst \> $active_inst`
if [ $result -eq 1 ]; then
echo "PaTcH_MsG 1 Patch number $Patch_label is \
superceded by the already applied $patchappl."
exit 3
elif [ $appl_inst = $active_inst ]; then
# Not newer, it's the same
if [ "$PATCH_UNCONDITIONAL" = "true" ]; then
if [ -d $PKGSAV/$Patch_label ]; then
echo "PATCH_NO_UNDO=true" >> $1
fi
else
echo "$ALRDY_MSG"
exit 3;
fi
fi
fi
done
# Construct a list of applied patches in order
echo "PATCHLIST=${PATCHLIST} $Patch_label" >> $1
#
# Construct the complete list of patches this one obsoletes
#
ACTIVE_OBSOLETES=$Obsoletes_label
if [ -n "$Obsoletes_label" ]; then
# Merge the two lists
echo $Obsoletes_label | sed 'y/\ /\n/' | \
nawk -v PatchObsList="$PATCH_OBSOLETES" '
BEGIN {
printf("PATCH_OBSOLETES=");
PatchCount=split(PatchObsList, PatchObsComp, " ");
for(PatchIndex in PatchObsComp) {
Atisat=match(PatchObsComp[PatchIndex], "@");
PatchObs[PatchIndex]=substr(PatchObsComp[PatchIndex], \
0, Atisat-1);
PatchObsCnt[PatchIndex]=substr(PatchObsComp\
[PatchIndex], Atisat+1);
}
}
{
Inserted=0;
for(PatchIndex in PatchObs) {
if (PatchObs[PatchIndex] == $0) {
if (Inserted == 0) {
PatchObsCnt[PatchIndex]=PatchObsCnt\
[PatchIndex]+1;
Inserted=1;
} else {
PatchObsCnt[PatchIndex]=0;
}
}
}
if (Inserted == 0) {
printf ("%s@1 ", $0);
}
next;
}
END {
for(PatchIndex in PatchObs) {
if ( PatchObsCnt[PatchIndex] != 0) {
printf("%s@%d ", PatchObs[PatchIndex], \
PatchObsCnt[PatchIndex]);
}
}
printf("\n");
} ' >> $1
# Clear the parameter since it has already been used.
echo "Obsoletes_label=" >> $1
# Pass it's value on to the preinstall under another name
echo "ACTIVE_OBSOLETES=$ACTIVE_OBSOLETES" >> $1
fi
#
# Construct PATCH_INFO line for this package.
#
tmpRequire=`nawk -F= ' $1 ~ /REQUIR/ { print $2 } ' $INFO_DIR/pkginfo `
tmpIncompat=`nawk -F= ' $1 ~ /INCOMPAT/ { print $2 } ' $INFO_DIR/pkginfo `
if [ -n "$tmpRequire" ] && [ -n "$tmpIncompat" ]
then
echo "PATCH_INFO_$Patch_label=Installed: `date` From: `uname -n` \
Obsoletes: $ACTIVE_OBSOLETES Requires: $tmpRequire \
Incompatibles: $tmpIncompat" >> $1
elif [ -n "$tmpRequire" ]
then
echo "PATCH_INFO_$Patch_label=Installed: `date` From: `uname -n` \
Obsoletes: $ACTIVE_OBSOLETES Requires: $tmpRequire \
Incompatibles: " >> $1
elif [ -n "$tmpIncompat" ]
then
echo "PATCH_INFO_$Patch_label=Installed: `date` From: `uname -n` \
Obsoletes: $ACTIVE_OBSOLETES Requires: Incompatibles: \
$tmpIncompat" >> $1
else
echo "PATCH_INFO_$Patch_label=Installed: `date` From: `uname -n` \
Obsoletes: $ACTIVE_OBSOLETES Requires: Incompatibles: " >> $1
fi
#
# Since this script is called from the delivery medium and we may be using
# dot extensions to distinguish the different patch packages, this is the
# only place we can, with certainty, trace that source for our backout
# scripts. (Usually $INST_DATADIR would get us there).
#
echo "SCRIPTS_DIR=`dirname $0`" >> $1
# If additional operations are required for this package, place
# those package-specific commands here.
#XXXSpecial_CommandsXXX#
exit 0
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