Remove obsolete files also on package reinstalls (and downgrades).

This commit is contained in:
Juan RP 2014-01-15 21:52:35 +01:00
parent 835812df2c
commit 16fc064aef
2 changed files with 128 additions and 135 deletions

3
NEWS
View File

@ -1,5 +1,8 @@
xbps-0.30 (??):
* When reinstalling a package (or downgrading) also check for obsolete
files and remove them if it's needed.
* When reinstalling a package (or downgrading) make sure to also respect
its installation mode (automatic or manual).

View File

@ -1,5 +1,5 @@
/*-
* Copyright (c) 2008-2013 Juan Romero Pardines.
* Copyright (c) 2008-2014 Juan Romero Pardines.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@ -162,7 +162,7 @@ unpack_archive(struct xbps_handle *xhp,
const char *fname,
struct archive *ar)
{
xbps_dictionary_t propsd, filesd, old_filesd;
xbps_dictionary_t propsd, filesd, metapropsd;
xbps_array_t array, obsoletes;
xbps_object_t obj;
const struct stat *entry_statp;
@ -172,22 +172,21 @@ unpack_archive(struct xbps_handle *xhp,
struct archive_entry *entry;
size_t instbufsiz = 0, rembufsiz = 0;
ssize_t entry_size;
unsigned int entry_idx = 0;
const char *file, *entry_pname, *transact, *tgtlnk;
char *pkgname, *dname, *buf, *buf2, *p, *p2;
int ar_rv, rv, entry_type, flags;
bool preserve, update, conf_file, file_exists, skip_obsoletes;
bool skip_extract, force, metafile, xucd_stats;
bool skip_extract, force, xucd_stats;
uid_t euid;
propsd = filesd = old_filesd = NULL;
propsd = filesd = metapropsd = NULL;
force = preserve = update = conf_file = file_exists = false;
skip_obsoletes = metafile = xucd_stats = false;
skip_obsoletes = xucd_stats = false;
ar_rv = rv = entry_type = flags = 0;
xbps_dictionary_get_bool(pkg_repod, "preserve", &preserve);
xbps_dictionary_get_bool(pkg_repod, "skip-obsoletes", &skip_obsoletes);
xbps_dictionary_get_cstring_nocopy(pkg_repod,
"transaction", &transact);
xbps_dictionary_get_cstring_nocopy(pkg_repod, "transaction", &transact);
euid = geteuid();
@ -203,6 +202,109 @@ unpack_archive(struct xbps_handle *xhp,
* Process the archive files.
*/
flags = set_extract_flags(euid);
/*
* First get all metadata files on archive in this order:
* - INSTALL
* - REMOVE
* - props.plist
* - files.plist
*
* The XBPS package must contain props and files plists, otherwise
* it's not a valid package.
*/
for (uint8_t i = 0; i < 4; i++) {
ar_rv = archive_read_next_header(ar, &entry);
if (ar_rv == ARCHIVE_EOF || ar_rv == ARCHIVE_FATAL)
break;
entry_pname = archive_entry_pathname(entry);
entry_size = archive_entry_size(entry);
if (strcmp("./INSTALL", entry_pname) == 0) {
/*
* Store file in a buffer to execute it later.
*/
instbufsiz = entry_size;
instbuf = malloc(entry_size);
assert(instbuf);
if (archive_read_data(ar, instbuf, entry_size) != entry_size) {
rv = EINVAL;
goto out;
}
} else if (strcmp("./REMOVE", entry_pname) == 0) {
/*
* Store file in a buffer to execute it later.
*/
rembufsiz = entry_size;
rembuf = malloc(entry_size);
assert(rembuf);
if (archive_read_data(ar, rembuf, entry_size) != entry_size) {
rv = EINVAL;
goto out;
}
} else if (strcmp("./props.plist", entry_pname) == 0) {
propsd = xbps_archive_get_dictionary(ar, entry);
if (propsd == NULL) {
rv = EINVAL;
goto out;
}
} else if (strcmp("./files.plist", entry_pname) == 0) {
filesd = xbps_archive_get_dictionary(ar, entry);
if (filesd == NULL) {
rv = EINVAL;
goto out;
}
}
if (propsd && filesd)
break;
}
/*
* If there was any error extracting files from archive, error out.
*/
if (ar_rv == ARCHIVE_FATAL) {
xbps_set_cb_state(xhp, XBPS_STATE_UNPACK_FAIL, rv, pkgver,
"%s: [unpack] 1: failed to extract files: %s",
pkgver, archive_error_string(ar));
rv = EINVAL;
goto out;
}
/*
* Bail out if required metadata files are not in archive.
*/
if (propsd == NULL || filesd == NULL) {
xbps_set_cb_state(xhp, XBPS_STATE_UNPACK_FAIL, ENODEV, pkgver,
"%s: [unpack] invalid binary package `%s'.", pkgver, fname);
rv = ENODEV;
goto out;
}
/*
* Create new metaplist file before unpacking any real file.
*/
metapropsd = xbps_pkgdb_get_pkg_metadata(xhp, pkgname);
rv = create_pkg_metaplist(xhp, pkgname, pkgver,
propsd, filesd, instbuf, instbufsiz, rembuf, rembufsiz);
if (rv != 0) {
xbps_set_cb_state(xhp, XBPS_STATE_UNPACK_FAIL, rv, pkgver,
"%s: [unpack] failed to create metaplist file: %s",
pkgver, strerror(rv));
goto out;
}
/*
* Execute INSTALL "pre" ACTION before unpacking files.
*/
if (instbuf != NULL) {
rv = xbps_pkg_exec_buffer(xhp, instbuf, instbufsiz, pkgver, "pre", update);
if (rv != 0) {
xbps_set_cb_state(xhp, XBPS_STATE_UNPACK_FAIL, rv, pkgver,
"%s: [unpack] INSTALL script failed to execute pre ACTION: %s",
pkgver, strerror(rv));
goto out;
}
}
/*
* Unpack all files on archive now.
*/
for (;;) {
ar_rv = archive_read_next_header(ar, &entry);
if (ar_rv == ARCHIVE_EOF || ar_rv == ARCHIVE_FATAL)
@ -221,100 +323,6 @@ unpack_archive(struct xbps_handle *xhp,
archive_read_data_skip(ar);
continue;
}
if (strcmp("./INSTALL", entry_pname) == 0) {
/*
* Store file in a buffer and execute
* the "pre" action from it.
*/
instbufsiz = entry_size;
instbuf = malloc(entry_size);
assert(instbuf);
if (archive_read_data(ar, instbuf, entry_size) !=
entry_size) {
rv = EINVAL;
goto out;
}
rv = xbps_pkg_exec_buffer(xhp, instbuf, instbufsiz,
pkgver, "pre", update);
if (rv != 0) {
xbps_set_cb_state(xhp,
XBPS_STATE_UNPACK_FAIL,
rv, pkgver,
"%s: [unpack] INSTALL script failed "
"to execute pre ACTION: %s",
pkgver, strerror(rv));
goto out;
}
continue;
} else if (strcmp("./REMOVE", entry_pname) == 0) {
/* store file in a buffer */
rembufsiz = entry_size;
rembuf = malloc(entry_size);
assert(rembuf);
if (archive_read_data(ar, rembuf, entry_size) !=
entry_size) {
rv = EINVAL;
goto out;
}
continue;
} else if (strcmp("./files.plist", entry_pname) == 0) {
filesd = xbps_archive_get_dictionary(ar, entry);
if (filesd == NULL) {
rv = errno;
goto out;
}
continue;
} else if (strcmp("./props.plist", entry_pname) == 0) {
propsd = xbps_archive_get_dictionary(ar, entry);
if (propsd == NULL) {
rv = errno;
goto out;
}
continue;
}
/*
* If XBPS_PKGFILES or XBPS_PKGPROPS weren't found
* in the archive at this phase, skip all data.
*/
if (propsd == NULL || filesd == NULL) {
archive_read_data_skip(ar);
/*
* If we have processed 4 entries and the two
* required metadata files weren't found, bail out.
* This is not an XBPS binary package.
*/
if (entry_idx >= 3) {
xbps_set_cb_state(xhp,
XBPS_STATE_UNPACK_FAIL, ENODEV, pkgver,
"%s: [unpack] invalid binary package `%s'.",
pkgver, fname);
rv = ENODEV;
goto out;
}
entry_idx++;
continue;
}
/*
* XXX: duplicate code.
* Create the metaplist file before unpacking any real file.
*/
if (!metafile) {
rv = create_pkg_metaplist(xhp, pkgname, pkgver,
propsd, filesd, instbuf, instbufsiz,
rembuf, rembufsiz);
if (rv != 0) {
xbps_set_cb_state(xhp, XBPS_STATE_UNPACK_FAIL,
rv, pkgver,
"%s: [unpack] failed to create metaplist file: %s",
pkgver, strerror(rv));
goto out;
}
metafile = true;
}
/*
* Prepare unpack callback ops.
*/
@ -385,6 +393,7 @@ unpack_archive(struct xbps_handle *xhp,
*/
skip_extract = true;
}
rv = 0;
} else {
rv = xbps_file_hash_check_dictionary(
xhp, filesd, "files", buf);
@ -407,6 +416,7 @@ unpack_archive(struct xbps_handle *xhp,
pkgver, entry_pname);
skip_extract = true;
}
rv = 0;
}
}
} else if (!force && (entry_type == AE_IFLNK)) {
@ -491,7 +501,6 @@ unpack_archive(struct xbps_handle *xhp,
"mode to %s.\n", pkgver, entry_pname,
archive_entry_strmode(entry));
}
if (!update && conf_file && file_exists && !skip_extract) {
/*
* If installing new package preserve old configuration
@ -506,7 +515,6 @@ unpack_archive(struct xbps_handle *xhp,
"Renamed old configuration file "
"`%s' to `%s.old'.", entry_pname, entry_pname);
}
if (!force && skip_extract) {
archive_read_data_skip(ar);
continue;
@ -520,11 +528,10 @@ unpack_archive(struct xbps_handle *xhp,
* Extract entry from archive.
*/
if (archive_read_extract(ar, entry, flags) != 0) {
rv = archive_errno(ar);
xbps_set_cb_state(xhp, XBPS_STATE_UNPACK_FAIL,
rv, pkgver,
archive_errno(ar), pkgver,
"%s: [unpack] failed to extract file `%s': %s",
pkgver, entry_pname, strerror(rv));
pkgver, entry_pname, archive_error_string(ar));
} else {
if (xhp->unpack_cb != NULL) {
xucd.entry_extract_count++;
@ -532,49 +539,33 @@ unpack_archive(struct xbps_handle *xhp,
}
}
}
/*
* XXX: duplicate code.
* Create the metaplist file if it wasn't created before.
*/
if (propsd && filesd && !metafile) {
rv = create_pkg_metaplist(xhp, pkgname, pkgver,
propsd, filesd, instbuf, instbufsiz,
rembuf, rembufsiz);
if (rv != 0) {
xbps_set_cb_state(xhp, XBPS_STATE_UNPACK_FAIL,
rv, pkgver,
"%s: [unpack] failed to create metaplist file: %s",
pkgver, strerror(rv));
goto out;
}
}
/*
* If there was any error extracting files from archive, error out.
*/
if ((rv = archive_errno(ar)) != 0) {
xbps_set_cb_state(xhp, XBPS_STATE_UNPACK_FAIL,
rv, pkgver, NULL,
if (ar_rv == ARCHIVE_FATAL) {
xbps_set_cb_state(xhp, XBPS_STATE_UNPACK_FAIL, rv, pkgver,
"%s: [unpack] failed to extract files: %s",
pkgver, fname, archive_error_string(ar));
pkgver, archive_error_string(ar));
goto out;
}
/*
* Skip checking for obsolete files on:
* - New package installation.
* - Package with "preserve" keyword.
* - Package with "skip-obsoletes" keyword.
*/
if (skip_obsoletes || preserve || !update)
if (skip_obsoletes || preserve) {
xbps_dbg_printf(xhp, "%s: skipping obsoletes\n", pkgver);
goto out;
}
/*
* Check and remove obsolete files on:
* - Package reinstall.
* - Package upgrade.
*/
old_filesd = xbps_pkgdb_get_pkg_metadata(xhp, pkgname);
if (old_filesd == NULL)
if (metapropsd == NULL || !xbps_dictionary_count(metapropsd))
goto out;
obsoletes = xbps_find_pkg_obsoletes(xhp, old_filesd, filesd);
obsoletes = xbps_find_pkg_obsoletes(xhp, metapropsd, filesd);
for (unsigned int i = 0; i < xbps_array_count(obsoletes); i++) {
obj = xbps_array_get(obsoletes, i);
file = xbps_string_cstring_nocopy(obj);
@ -591,7 +582,7 @@ unpack_archive(struct xbps_handle *xhp,
0, pkgver, "%s: removed obsolete entry: %s", pkgver, file);
xbps_object_release(obj);
}
xbps_object_release(old_filesd);
xbps_object_release(metapropsd);
out:
if (xbps_object_type(filesd) == XBPS_TYPE_DICTIONARY)
@ -690,8 +681,7 @@ xbps_unpack_binary_pkg(struct xbps_handle *xhp, xbps_dictionary_t pkg_repod)
goto out;
}
if ((rv = unpack_archive(xhp, pkg_repod, pkgver, bpkg, ar)) != 0) {
xbps_set_cb_state(xhp, XBPS_STATE_UNPACK_FAIL,
rv, pkgver,
xbps_set_cb_state(xhp, XBPS_STATE_UNPACK_FAIL, rv, pkgver,
"%s: [unpack] failed to unpack files from archive: %s",
pkgver, strerror(rv));
goto out;