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117 lines
4.0 KiB
117 lines
4.0 KiB
From 1e4f0fdb8d684007fa0c9747181a8ca70da5eaae Mon Sep 17 00:00:00 2001
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From: Antonio Alvarez Feijoo <antonio.feijoo@suse.com>
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Date: Mon, 10 Apr 2023 15:18:33 +0200
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Subject: [PATCH] generator: add generator_open_unit_file_full to allow
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creating temporary units
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This function is like `generator_open_unit_file`, but if `ret_temp_path` is
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passed, a temporary unit is created instead.
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(cherry picked from commit 8a84e0d7960b7970c16a4efd4c5b0b26c810d22d)
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Related: RHEL-27512
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---
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src/shared/generator.c | 46 ++++++++++++++++++++++++++++--------------
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src/shared/generator.h | 10 ++++-----
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2 files changed, 36 insertions(+), 20 deletions(-)
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diff --git a/src/shared/generator.c b/src/shared/generator.c
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index 284e5fc580..29de8ada6b 100644
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--- a/src/shared/generator.c
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+++ b/src/shared/generator.c
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@@ -20,42 +20,58 @@
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#include "specifier.h"
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#include "string-util.h"
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#include "time-util.h"
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+#include "tmpfile-util.h"
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#include "unit-name.h"
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#include "util.h"
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-int generator_open_unit_file(
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+int generator_open_unit_file_full(
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const char *dir,
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const char *source,
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const char *fn,
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- FILE **ret) {
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+ FILE **ret_file,
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+ char **ret_temp_path) {
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_cleanup_free_ char *p = NULL;
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FILE *f;
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int r;
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assert(dir);
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- assert(fn);
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- assert(ret);
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+ assert(ret_file);
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- p = path_join(dir, fn);
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- if (!p)
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- return log_oom();
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+ /* If <ret_temp_path> is specified, it creates a temporary unit file and also returns its
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+ * temporary path. */
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- r = fopen_unlocked(p, "wxe", &f);
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- if (r < 0) {
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- if (source && r == -EEXIST)
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- return log_error_errno(r,
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- "Failed to create unit file '%s', as it already exists. Duplicate entry in '%s'?",
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- p, source);
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+ if (ret_temp_path) {
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+ r = fopen_temporary(dir, &f, &p);
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+ if (r < 0)
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+ return log_error_errno(r, "Failed to create temporary unit file in '%s': %m", dir);
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+
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+ (void) fchmod(fileno(f), 0644);
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- return log_error_errno(r, "Failed to create unit file '%s': %m", p);
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+ *ret_temp_path = TAKE_PTR(p);
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+ } else {
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+ assert(fn);
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+
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+ p = path_join(dir, fn);
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+ if (!p)
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+ return log_oom();
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+
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+ r = fopen_unlocked(p, "wxe", &f);
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+ if (r < 0) {
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+ if (source && r == -EEXIST)
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+ return log_error_errno(r,
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+ "Failed to create unit file '%s', as it already exists. Duplicate entry in '%s'?",
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+ p, source);
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+
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+ return log_error_errno(r, "Failed to create unit file '%s': %m", p);
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+ }
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}
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fprintf(f,
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"# Automatically generated by %s\n\n",
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program_invocation_short_name);
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- *ret = f;
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+ *ret_file = f;
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return 0;
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}
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diff --git a/src/shared/generator.h b/src/shared/generator.h
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index 111900fd45..d97d6edc67 100644
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--- a/src/shared/generator.h
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+++ b/src/shared/generator.h
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@@ -6,11 +6,11 @@
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#include "macro.h"
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#include "main-func.h"
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-int generator_open_unit_file(
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- const char *dest,
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- const char *source,
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- const char *name,
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- FILE **file);
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+int generator_open_unit_file_full(const char *dest, const char *source, const char *name, FILE **ret_file, char **ret_temp_path);
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+
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+static inline int generator_open_unit_file(const char *dest, const char *source, const char *name, FILE **ret_file) {
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+ return generator_open_unit_file_full(dest, source, name, ret_file, NULL);
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+}
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int generator_add_symlink_full(const char *dir, const char *dst, const char *dep_type, const char *src, const char *instance);
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