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The environment variable PKG_PREFIX is set to the first @cwd command

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in the packing list, or the argument to -p if it is specified, before
the requirements/installation/deinstallation scripts are called.  This
enables the scripts to be written to work on the final installation
destination, even if the user uses -p to override the package's default.
This commit is contained in:
Satoshi Asami 1994-05-25 18:00:04 +00:00
parent 26f9a76710
commit 5edd12d270
5 changed files with 46 additions and 16 deletions
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7
usr.sbin/pkg_install/add/perform.c
View File

@ -1,5 +1,5 @@
#ifndef lint
static const char *rcsid = "$Id: perform.c,v 1.6 1993/10/10 20:25:31 jkh Exp $";
static const char *rcsid = "$Id: perform.c,v 1.7 1994/05/25 06:24:18 jkh Exp $";
#endif
/*
@ -108,9 +108,6 @@ pkg_do(char *pkg)
delete_plist(&Plist, FALSE, PLIST_CWD, NULL);
add_plist_top(&Plist, PLIST_CWD, Prefix);
}
/* Just to be safe - overridden if package has made a choice */
else
add_plist_top(&Plist, PLIST_CWD, home);
/* If we're running in MASTER mode, just output the plist and return */
if (AddMode == MASTER) {
printf("%s\n", where_playpen());
@ -118,6 +115,8 @@ pkg_do(char *pkg)
return 0;
}
}
setenv(PKG_PREFIX_VNAME,
(p = find_plist(&Plist, PLIST_CWD)) ? p->name : NULL, 1);
PkgName = (p = find_plist(&Plist, PLIST_NAME)) ? p->name : "anonymous";
if (fexists(REQUIRE_FNAME)) {
vsystem("chmod +x %s", REQUIRE_FNAME); /* be sure */

14
usr.sbin/pkg_install/add/pkg_add.1
View File

@ -172,10 +172,22 @@ This all allows you to write an
.B install
script that does "before and after" actions.
.PP
All the scripts are called with the environment variable
.B PKG_PREFIX
set to the installation prefix (see the
.B -p
option above). This allows a package author to write a script
that reliably performs some action on the directory where the package
is installed, even if the user might change it by
.B -p
when
.B pkg_add
is run.
.PP
After installation is complete, a copy of the packing list, in addition
to any
.B deinstall
script the package might have, is copied into /var/pkg/<pkg-name>
script the package might have, is copied into /var/db/pkg/<pkg-name>
for subsequent possible use by
.B pkg-delete.
Finally, the staging area is deleted and the program terminates.

23
usr.sbin/pkg_install/delete/perform.c
View File

@ -1,5 +1,5 @@
#ifndef lint
static const char *rcsid = "$Id: perform.c,v 1.2 1993/09/03 23:01:02 jkh Exp $";
static const char *rcsid = "$Id: perform.c,v 1.3 1993/10/08 01:19:35 jkh Exp $";
#endif
/*
@ -48,6 +48,7 @@ pkg_do(char *pkg)
{
FILE *cfile;
char home[FILENAME_MAX];
PackingList p;
/* Reset some state */
if (Plist.head)
@ -65,15 +66,6 @@ pkg_do(char *pkg)
return 1;
}
sanity_check(LogDir);
if (fexists(REQUIRE_FNAME)) {
if (Verbose)
printf("Executing 'require' script.\n");
vsystem("chmod +x %s", REQUIRE_FNAME); /* be sure */
if (vsystem("./%s %s DEINSTALL", REQUIRE_FNAME, pkg)) {
whinge("Package %s fails requirements - not deleted.", pkg);
return 1;
}
}
cfile = fopen(CONTENTS_FNAME, "r");
if (!cfile) {
whinge("Unable to open '%s' file.", CONTENTS_FNAME);
@ -84,6 +76,17 @@ pkg_do(char *pkg)
add_plist(&Plist, PLIST_CWD, Prefix);
read_plist(&Plist, cfile);
fclose(cfile);
setenv(PKG_PREFIX_VNAME,
(p = find_plist(&Plist, PLIST_CWD)) ? p->name : NULL, 1);
if (fexists(REQUIRE_FNAME)) {
if (Verbose)
printf("Executing 'require' script.\n");
vsystem("chmod +x %s", REQUIRE_FNAME); /* be sure */
if (vsystem("./%s %s DEINSTALL", REQUIRE_FNAME, pkg)) {
whinge("Package %s fails requirements - not deleted.", pkg);
return 1;
}
}
if (!NoDeInstall && fexists(DEINSTALL_FNAME)) {
if (Fake)
printf("Would execute de-install script at this point.\n");

14
usr.sbin/pkg_install/delete/pkg_delete.1
View File

@ -99,6 +99,20 @@ is a keyword denoting that this is a deinstallation. Passing the keyword
lets you potentially write only one program/script that handles all
aspects of installation and deletion.
.PP
All scripts are called with the environment variable
.B PKG_PREFIX
set to the installation prefix (see the
.B -p
option above). This allows a package author to write a script
that reliably performs some action on the directory where the package
is installed, even if the user might have changed it by
.B -p
when
.B pkg_add
or
.B pkg_delete
is run.
.PP
.SH BUGS
Sure to be some.
.SH "SEE ALSO"

4
usr.sbin/pkg_install/lib/lib.h
View File

@ -1,4 +1,4 @@
/* $Id: lib.h,v 1.5 1994/04/05 14:08:46 jkh Exp $ */
/* $Id: lib.h,v 1.6 1994/05/25 06:27:23 jkh Exp $ */
/*
* FreeBSD install - a package for the installation and maintainance
@ -69,6 +69,8 @@
#define CMD_CHAR '@' /* prefix for extended PLIST cmd */
/* The name of the "prefix" environment variable given to scripts */
#define PKG_PREFIX_VNAME "PKG_PREFIX"
enum _plist_t {
PLIST_FILE, PLIST_CWD, PLIST_CMD, PLIST_CHMOD,