From: Michael Tremer <michael.tremer@ipfire.org>
Date: Wed, 22 Sep 2021 14:55:07 +0000 (+0000)
Subject: build: Make local repository available inside the shell
X-Git-Tag: 0.9.28~936
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=22a0733ef0b795ad00bb7385bc3ea5f8d95594fa;p=pakfire.git

build: Make local repository available inside the shell

Signed-off-by: Michael Tremer <michael.tremer@ipfire.org>
---

diff --git a/src/libpakfire/build.c b/src/libpakfire/build.c
index 998eb86a1..5df592b6b 100644
--- a/src/libpakfire/build.c
+++ b/src/libpakfire/build.c
@@ -21,6 +21,7 @@
 #include <errno.h>
 #include <glob.h>
 #include <stdlib.h>
+#include <sys/mount.h>
 #include <unistd.h>
 #include <uuid/uuid.h>
 
@@ -798,6 +799,80 @@ ERROR:
 	return r;
 }
 
+/*
+	This function enables the local repository so that it can be access by
+	a pakfire instance running inside the chroot.
+*/
+static int pakfire_build_enable_repos(struct pakfire* pakfire) {
+	char repopath[PATH_MAX];
+	FILE* f = NULL;
+	int r = 1;
+
+	// Fetch the local repository
+	struct pakfire_repo* repo = pakfire_get_repo(pakfire, PAKFIRE_REPO_LOCAL);
+	if (!repo) {
+		DEBUG(pakfire, "Could not find repository '%s': %m\n", PAKFIRE_REPO_LOCAL);
+		return 0;
+	}
+
+	// Fetch repository configuration
+	char* config = pakfire_repo_get_config(repo);
+	if (!config) {
+		ERROR(pakfire, "Could not generate repository configuration: %m\n");
+		goto ERROR;
+	}
+
+	const char* path = pakfire_repo_get_path(repo);
+
+	// Make sure the source directory exists
+	r = pakfire_mkdir(path, 0);
+	if (r) {
+		ERROR(pakfire, "Could not create repository directory %s: %m\n", path);
+		goto ERROR;
+	}
+
+	// Bind-mount the repository data read-only
+	r = pakfire_bind(pakfire, path, NULL, MS_RDONLY);
+	if (r) {
+		ERROR(pakfire, "Could not bind-mount the repository at %s: %m\n", path);
+		goto ERROR;
+	}
+
+	// Make path for configuration file
+	r = pakfire_make_path(pakfire, repopath,
+		PAKFIRE_CONFIG_PATH "/repos/" PAKFIRE_REPO_LOCAL ".repo");
+	if (r < 0)
+		goto ERROR;
+
+	// Open configuration file for writing
+	f = fopen(repopath, "w");
+	if (!f) {
+		ERROR(pakfire, "Could not open %s for writing: %m\n", path);
+		r = 1;
+		goto ERROR;
+	}
+
+	// Write configuration
+	size_t bytes_written = fprintf(f, "%s", config);
+	if (bytes_written < strlen(config)) {
+		ERROR(pakfire, "Could not write repository configuration: %m\n");
+		r = 1;
+		goto ERROR;
+	}
+
+	// Success
+	r = 0;
+
+ERROR:
+	if (f)
+		fclose(f);
+	if (config)
+		free(config);
+	pakfire_repo_unref(repo);
+
+	return r;
+}
+
 PAKFIRE_EXPORT int pakfire_shell(struct pakfire* pakfire) {
 	int r;
 
@@ -806,6 +881,11 @@ PAKFIRE_EXPORT int pakfire_shell(struct pakfire* pakfire) {
 	if (r)
 		return r;
 
+	// Export local repository if running in interactive mode
+	r = pakfire_build_enable_repos(pakfire);
+	if (r)
+		return r;
+
 	return pakfire_execute_shell(pakfire);
 }