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xbps-install: improved -D,--download-only support.

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Added support to download all dependencies even
if the euid does not have write perms to rootdir.

In this mode we only care if cachedir is writable,
rootdir access is not necessary.

This is really useful to download all binary packages
required by any number of packages as any regular
user to later perform off-line installations, i.e:

```
$ xbps-install -c $PWD/cachedir -yD xbps
...
$ tree cachedir
cachedir/
├── acl-2.2.53_1.x86_64-musl.xbps
├── acl-2.2.53_1.x86_64-musl.xbps.sig
├── attr-2.4.48_1.x86_64-musl.xbps
├── attr-2.4.48_1.x86_64-musl.xbps.sig
├── bzip2-1.0.8_1.x86_64-musl.xbps
├── bzip2-1.0.8_1.x86_64-musl.xbps.sig
├── ca-certificates-20190110_1.noarch.xbps
├── ca-certificates-20190110_1.noarch.xbps.sig
├── libarchive-3.4.1_1.x86_64-musl.xbps
├── libarchive-3.4.1_1.x86_64-musl.xbps.sig
├── libcrypto45-3.0.2_2.x86_64-musl.xbps
├── libcrypto45-3.0.2_2.x86_64-musl.xbps.sig
├── liblz4-1.9.2_1.x86_64-musl.xbps
├── liblz4-1.9.2_1.x86_64-musl.xbps.sig
├── liblzma-5.2.4_2.x86_64-musl.xbps
├── liblzma-5.2.4_2.x86_64-musl.xbps.sig
├── libressl-3.0.2_2.x86_64-musl.xbps
├── libressl-3.0.2_2.x86_64-musl.xbps.sig
├── libssl47-3.0.2_2.x86_64-musl.xbps
├── libssl47-3.0.2_2.x86_64-musl.xbps.sig
├── libtls19-3.0.2_2.x86_64-musl.xbps
├── libtls19-3.0.2_2.x86_64-musl.xbps.sig
├── libxbps-0.57.1_8.x86_64-musl.xbps
├── libxbps-0.57.1_8.x86_64-musl.xbps.sig
├── libzstd-1.4.4_1.x86_64-musl.xbps
├── libzstd-1.4.4_1.x86_64-musl.xbps.sig
├── musl-1.1.24_1.x86_64-musl.xbps
├── musl-1.1.24_1.x86_64-musl.xbps.sig
├── run-parts-4.9.1_1.x86_64-musl.xbps
├── run-parts-4.9.1_1.x86_64-musl.xbps.sig
├── xbps-0.57.1_8.x86_64-musl.xbps
├── xbps-0.57.1_8.x86_64-musl.xbps.sig
├── xbps-triggers-0.113_3.noarch.xbps
├── xbps-triggers-0.113_3.noarch.xbps.sig
├── zlib-1.2.11_3.x86_64-musl.xbps
└── zlib-1.2.11_3.x86_64-musl.xbps.sig

0 directories, 36 files
$
```

Inpired by #213
Closes #213
This commit is contained in:
Juan RP
2020-01-25 13:05:46 +01:00
parent ed5e481e77
commit bda4452016
6 changed files with 53 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

23
lib/transaction_prepare.c
View File

@ -62,7 +62,6 @@ compute_transaction_stats(struct xbps_handle *xhp)
struct statvfs svfs;
uint64_t rootdir_free_size, tsize, dlsize, instsize, rmsize;
uint32_t inst_pkgcnt, up_pkgcnt, cf_pkgcnt, rm_pkgcnt, dl_pkgcnt;
const char *tract, *pkgver, *repo;
inst_pkgcnt = up_pkgcnt = cf_pkgcnt = rm_pkgcnt = dl_pkgcnt = 0;
tsize = dlsize = instsize = rmsize = 0;
@ -72,6 +71,7 @@ compute_transaction_stats(struct xbps_handle *xhp)
return EINVAL;
while ((obj = xbps_object_iterator_next(iter)) != NULL) {
const char *pkgver = NULL, *repo = NULL, *tract = NULL;
bool preserve = false;
/*
* Count number of pkgs to be removed, configured,
@ -82,6 +82,20 @@ compute_transaction_stats(struct xbps_handle *xhp)
xbps_dictionary_get_cstring_nocopy(obj, "repository", &repo);
xbps_dictionary_get_bool(obj, "preserve", &preserve);
if (xhp->flags & XBPS_FLAG_DOWNLOAD_ONLY) {
tract = "download";
if (xbps_repository_is_remote(repo) &&
!xbps_binpkg_exists(xhp, obj)) {
xbps_dictionary_get_uint64(obj,
"filename-size", &tsize);
tsize += 512;
dlsize += tsize;
dl_pkgcnt++;
xbps_dictionary_set_bool(obj, "download", true);
}
continue;
}
if (strcmp(tract, "configure") == 0) {
cf_pkgcnt++;
continue;
@ -347,6 +361,13 @@ xbps_transaction_prepare(struct xbps_handle *xhp)
if (all_on_hold)
goto out;
/*
* Do not perform any checks if XBPS_FLAG_DOWNLOAD_ONLY
* is set. We just need to download the archives (dependencies).
*/
if (xhp->flags & XBPS_FLAG_DOWNLOAD_ONLY)
goto out;
/*
* Check for packages to be replaced.
*/