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prune: add --keep-younger-than=DATE

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The format used for DATE is "%Y-%m-%d %H:%M:%S %z"

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
This commit is contained in:
Giuseppe Scrivano 2015-11-06 09:50:17 +01:00
parent daa6f150c4
commit f56688da71
5 changed files with 181 additions and 22 deletions
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2
Makefile-ostree.am
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@ -48,6 +48,8 @@ ostree_SOURCES = src/ostree/main.c \
src/ostree/ot-dump.c \
src/ostree/ot-editor.c \
src/ostree/ot-editor.h \
src/ostree/parse-datetime.h \
src/ostree/parse-datetime.c \
$(NULL)
# Admin subcommand

8
doc/ostree-prune.xml
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@ -89,6 +89,14 @@ Boston, MA 02111-1307, USA.
</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--keep-younger-than</option>=DATE</term>
<listitem><para>
All commits older than DATE will be pruned.
</para></listitem>
</varlistentry>
<varlistentry>
<term><option>--depth</option>=DEPTH</term>

125
src/ostree/ot-builtin-prune.c
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@ -26,20 +26,115 @@
#include "ot-builtins.h"
#include "ostree.h"
#include "otutil.h"
#include "parse-datetime.h"
static gboolean opt_no_prune;
static gint opt_depth = -1;
static gboolean opt_refs_only;
static char *opt_delete_commit;
static char *opt_keep_younger_than;
static GOptionEntry options[] = {
{ "no-prune", 0, 0, G_OPTION_ARG_NONE, &opt_no_prune, "Only display unreachable objects; don't delete", NULL },
{ "refs-only", 0, 0, G_OPTION_ARG_NONE, &opt_refs_only, "Only compute reachability via refs", NULL },
{ "depth", 0, 0, G_OPTION_ARG_INT, &opt_depth, "Only traverse DEPTH parents for each commit (default: -1=infinite)", "DEPTH" },
{ "delete-commit", 0, 0, G_OPTION_ARG_STRING, &opt_delete_commit, "Specify a commit to delete", "COMMIT" },
{ "keep-younger-than", 0, 0, G_OPTION_ARG_STRING, &opt_keep_younger_than, "Prune all commits older than the specified date", "DATE" },
{ NULL }
};
static gboolean
delete_commit (OstreeRepo *repo, const char *commit_to_delete, GCancellable *cancellable, GError **error)
{
g_autoptr(GHashTable) refs = NULL;
GHashTableIter hashiter;
gpointer hashkey, hashvalue;
gboolean ret = FALSE;
if (!ostree_repo_list_refs (repo, NULL, &refs, cancellable, error))
goto out;
g_hash_table_iter_init (&hashiter, refs);
while (g_hash_table_iter_next (&hashiter, &hashkey, &hashvalue))
{
const char *ref = hashkey;
const char *commit = hashvalue;
if (g_strcmp0 (commit_to_delete, commit) == 0)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Commit '%s' is referenced by '%s'", commit_to_delete, ref);
goto out;
}
}
if (!ot_enable_tombstone_commits (repo, error))
goto out;
if (!ostree_repo_delete_object (repo, OSTREE_OBJECT_TYPE_COMMIT, commit_to_delete, cancellable, error))
goto out;
ret = TRUE;
out:
return ret;
}
static gboolean
prune_commits_keep_younger_than_date (OstreeRepo *repo, const char *date, GCancellable *cancellable, GError **error)
{
g_autoptr(GHashTable) objects = NULL;
GHashTableIter hash_iter;
gpointer key, value;
struct timespec ts;
gboolean ret = FALSE;
if (!parse_datetime (&ts, date, NULL))
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Could not parse '%s'", date);
goto out;
}
if (!ot_enable_tombstone_commits (repo, error))
goto out;
if (!ostree_repo_list_objects (repo, OSTREE_REPO_LIST_OBJECTS_ALL, &objects,
cancellable, error))
goto out;
g_hash_table_iter_init (&hash_iter, objects);
while (g_hash_table_iter_next (&hash_iter, &key, &value))
{
GVariant *serialized_key = key;
const char *checksum;
OstreeObjectType objtype;
guint64 commit_timestamp;
g_autoptr(GVariant) commit = NULL;
ostree_object_name_deserialize (serialized_key, &checksum, &objtype);
if (objtype != OSTREE_OBJECT_TYPE_COMMIT)
continue;
if (!ostree_repo_load_variant (repo, OSTREE_OBJECT_TYPE_COMMIT, checksum,
&commit, error))
goto out;
commit_timestamp = ostree_commit_get_timestamp (commit);
if (commit_timestamp < ts.tv_sec)
{
if (!ostree_repo_delete_object (repo, OSTREE_OBJECT_TYPE_COMMIT, checksum, cancellable, error))
goto out;
}
}
ret = TRUE;
out:
return ret;
}
gboolean
ostree_builtin_prune (int argc, char **argv, GCancellable *cancellable, GError **error)
{
@ -62,36 +157,22 @@ ostree_builtin_prune (int argc, char **argv, GCancellable *cancellable, GError *
if (opt_delete_commit)
{
g_autoptr(GHashTable) refs = NULL;
GHashTableIter hashiter;
gpointer hashkey, hashvalue;
if (opt_no_prune)
{
ot_util_usage_error (context, "Cannot specify both --delete-commit and --no-prune", error);
goto out;
}
if (!ostree_repo_list_refs (repo, NULL, &refs, cancellable, error))
if (!delete_commit (repo, opt_delete_commit, cancellable, error))
goto out;
g_hash_table_iter_init (&hashiter, refs);
while (g_hash_table_iter_next (&hashiter, &hashkey, &hashvalue))
}
if (opt_keep_younger_than)
{
if (opt_no_prune)
{
const char *ref = hashkey;
const char *commit = hashvalue;
if (g_strcmp0 (commit, opt_delete_commit) == 0)
{
g_set_error (error, G_IO_ERROR, G_IO_ERROR_FAILED,
"Commit '%s' is referenced by '%s'", opt_delete_commit, ref);
goto out;
}
ot_util_usage_error (context, "Cannot specify both --keep-younger-than and --no-prune", error);
goto out;
}
if (!ot_enable_tombstone_commits (repo, error))
goto out;
if (!ostree_repo_delete_object (repo, OSTREE_OBJECT_TYPE_COMMIT, opt_delete_commit, cancellable, error))
if (!prune_commits_keep_younger_than_date (repo, opt_keep_younger_than, cancellable, error))
goto out;
}

37
src/ostree/parse-datetime.c Normal file
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@ -0,0 +1,37 @@
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
*
* Copyright (C) 2015 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#include "parse-datetime.h"
#include <stdio.h>
bool
parse_datetime (struct timespec * result, char const *p, struct timespec const *now)
{
struct tm tmpresult;
time_t t;
if (strptime (p, "%Y-%m-%d %H:%M:%S %z", &tmpresult) == NULL)
return false;
t = timegm (&tmpresult);
result->tv_sec = t;
result->tv_nsec = 0;
return true;
}

31
src/ostree/parse-datetime.h Normal file
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@ -0,0 +1,31 @@
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
*
* Copyright (C) 2015 Red Hat, Inc.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
#pragma once
#include "config.h"
#include <gio/gio.h>
#include <stdbool.h>
#include <time.h>
#include <stdbool.h>
G_BEGIN_DECLS
bool parse_datetime (struct timespec *, char const *, struct timespec const *);
G_END_DECLS