richardphibel / rpms / rpm

Forked from rpms/rpm 2 years ago
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From 048db395b6de8544dc88231f0afebee8570daee6 Mon Sep 17 00:00:00 2001
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From: chantra <chantr4@gmail.com>
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Date: Tue, 8 Feb 2022 18:21:33 -0800
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Subject: [PATCH 18/30] [plugin] add `rpmpluginsCallFsmFileArchiveReader`
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This allows plugins to provide a custom `rpmfi` to
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`rpmPackageFilesInstall` function in fsm.c. It enables supporting
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transcoded files such as with reflink plugin.
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---
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 lib/rpmplugin.h  |  4 ++++
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 lib/rpmplugins.c | 34 ++++++++++++++++++++++++++++++++++
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 lib/rpmplugins.h |  4 +++-
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 3 files changed, 41 insertions(+), 1 deletion(-)
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diff --git a/lib/rpmplugin.h b/lib/rpmplugin.h
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index 877db81f3..6dbbcff35 100644
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--- a/lib/rpmplugin.h
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+++ b/lib/rpmplugin.h
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@@ -63,6 +63,9 @@ typedef rpmRC (*plugin_fsm_file_prepare_func)(rpmPlugin plugin, rpmfi fi,
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 typedef rpmRC (*plugin_fsm_file_install_func)(rpmPlugin plugin, rpmfi fi,
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 					      const char* path,
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 					      mode_t file_mode, rpmFsmOp op);
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+typedef rpmRC (*plugin_fsm_file_archive_reader_func)(rpmPlugin plugin,
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+						     FD_t payload,
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+						     rpmfiles files, rpmfi *fi);
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 typedef struct rpmPluginHooks_s * rpmPluginHooks;
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@@ -85,6 +88,7 @@ struct rpmPluginHooks_s {
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     plugin_fsm_file_post_func		fsm_file_post;
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     plugin_fsm_file_prepare_func	fsm_file_prepare;
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     plugin_fsm_file_install_func	fsm_file_install;
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+    plugin_fsm_file_archive_reader_func	fsm_file_archive_reader;
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 };
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 #ifdef __cplusplus
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diff --git a/lib/rpmplugins.c b/lib/rpmplugins.c
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index 850a025a0..901af1ac5 100644
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--- a/lib/rpmplugins.c
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+++ b/lib/rpmplugins.c
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@@ -457,4 +457,38 @@ rpmRC rpmpluginsCallFsmFileInstall(rpmPlugins plugins, rpmfi fi,
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     return rc;
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 }
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+rpmRC rpmpluginsCallFsmFileArchiveReader(rpmPlugins plugins, FD_t payload,
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+				   rpmfiles files, rpmfi *fi)
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+{
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+    plugin_fsm_file_archive_reader_func hookFunc;
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+    int i;
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+    rpmRC rc = RPMRC_OK;
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+    rpmRC hook_rc;
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+
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+    for (i = 0; i < plugins->count; i++) {
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+	rpmPlugin plugin = plugins->plugins[i];
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+	RPMPLUGINS_SET_HOOK_FUNC(fsm_file_archive_reader);
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+	if (hookFunc) {
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+	    hook_rc = hookFunc(plugin, payload, files, fi);
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+	    if (hook_rc == RPMRC_FAIL) {
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+		rpmlog(RPMLOG_ERR, "Plugin %s: hook fsm_file_archive_reader failed\n", plugin->name);
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+		rc = RPMRC_FAIL;
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+	    } else if (hook_rc == RPMRC_PLUGIN_CONTENTS && rc != RPMRC_FAIL) {
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+		if (rc == RPMRC_PLUGIN_CONTENTS) {
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+		    /* Another plugin already said it'd handle contents. It's
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+		     * undefined how these would combine, so treat this as a
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+		     * failure condition.
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+		    */
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+		    rc = RPMRC_FAIL;
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+		} else {
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+		    /* Plugin will handle content */
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+		    rc = RPMRC_PLUGIN_CONTENTS;
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+		}
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+	    }
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+	}
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+    }
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+
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+    return rc;
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+}
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+
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diff --git a/lib/rpmplugins.h b/lib/rpmplugins.h
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index 5365cf698..88807c53c 100644
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--- a/lib/rpmplugins.h
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+++ b/lib/rpmplugins.h
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@@ -181,7 +181,9 @@ rpmRC rpmpluginsCallFsmFileInstall(rpmPlugins plugins, rpmfi fi,
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 				   const char* path, mode_t file_mode,
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 				   rpmFsmOp op);
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-
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+RPM_GNUC_INTERNAL
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+rpmRC rpmpluginsCallFsmFileArchiveReader(rpmPlugins plugins, FD_t payload,
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+					 rpmfiles files, rpmfi *fi);
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 #ifdef __cplusplus
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 }
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 #endif
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-- 
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2.35.1
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