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Move version compatibility to the consumer; name libdpm-core explicitly

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dpm_require no longer takes a minimum version and applies no version
criterion of its own. A handle now means the module is valid, not that
it suits the caller. dpm_module_info_of is added alongside it, reporting
the name, version, description, and minimum-libdpm-core version read at
load, so a consuming module can judge a dependency's version for itself.
The one rule still enforced is the minimum-version handshake, where
libdpm-core is the host and refuses a module that demands a newer library
than the one running.

dpm_module_info_of joins the version script, so the exported surface is
now fourteen symbols under DPM_CORE_1.0.

Separately, the bare word "core" is gone from prose everywhere. It named
both the command-line tool and the library, so every use forced the
reader to guess which. Text now says "the dpm binary" or "libdpm-core".
Identifiers keep their spelling: libdpm-core, core.h, core.conf, the
"core" configuration namespace, dpm_core_version, core_min, DPM_CORE_1.0,
the dpmcore namespace, test_core, core_api.

Three user-visible strings changed with it: the load-refusal message now
reads "requires libdpm-core >= X, running libdpm-core is Y — update
libdpm-core", and the info module's description and help text name the
library. The test asserting on the refusal text was updated to match.

DESIGN.md's terminology line no longer defines "DPM Core" as the CLI,
which was the source of the ambiguity. OVERVIEW.md is restructured around
the three layers a reader meets DPM at — user, developer, filesystem —
so a code-level symbol never appears without saying whose layer it is.
MODULES.md describes the bundled info module as testing and demonstrating
full DPM system functionality rather than as a reference implementation.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>
This commit is contained in:
Chris Punches
2026-08-10 00:38:21 -04:00
parent da35fe4758
commit c41adc2498
22 changed files with 327 additions and 243 deletions
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8
include/internal/context.hpp
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@@ -1,6 +1,6 @@
/**
* @file context.hpp
* @brief The core context: configuration, logging, module registry
* @brief The libdpm-core context: configuration, logging, module registry
*
* @copyright Copyright (c) 2026 SILO GROUP LLC
* @author Chris Punches <chris.punches@silogroup.org>
@@ -30,7 +30,7 @@
#include "internal/modules.hpp"
/** @brief A core context: configuration, logging, and the module registry */
/** @brief A libdpm-core context: configuration, logging, module registry */
struct dpm_ctx {
std::string config_dir;
std::string module_path;
@@ -56,7 +56,7 @@ namespace dpmcore {
/**
* @brief Records a failure reason on the context
*
* @param ctx The core context; NULL is a no-op
* @param ctx The libdpm-core context; NULL is a no-op
* @param msg The failure description
*/
void set_error(dpm_ctx* ctx, const std::string& msg);
@@ -67,7 +67,7 @@ void set_error(dpm_ctx* ctx, const std::string& msg);
* Parses every .conf file in the context's configuration directory
* into the context's configuration store.
*
* @param ctx The core context
* @param ctx The libdpm-core context
*/
void load_config_dir(dpm_ctx* ctx);