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Add repo-symlink option to suppress creation of repository symlinks.

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Some otherwise Posix-compatible filesystems do not support symlinks. To support this allow symlinks to be disabled.
This commit is contained in:
David Steele
2025-10-13 11:20:18 +02:00
committed by GitHub
parent 4767f16214
commit bfd9790731
13 changed files with 130 additions and 12 deletions
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doc/xml/release/2025/2.57.0.xml
+15
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@@ -25,6 +25,21 @@
</release-item>
</release-bug-list>
<release-feature-list>
<release-item>
<github-issue id="2673"/>
<github-pull-request id="2674"/>
<release-item-contributor-list>
<release-item-ideator id="ron.johnson"/>
<release-item-contributor id="david.steele"/>
<release-item-reviewer id="douglas.j.hunley"/>
</release-item-contributor-list>
<p>Add <setting>repo-symlink</setting> option to suppress creation of repository symlinks.</p>
</release-item>
</release-feature-list>
<release-improvement-list>
<release-item>
<github-pull-request id="2661"/>
doc/xml/release/contributor.xml
+5
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@@ -965,6 +965,11 @@
<contributor-id type="github">rohitrav33ndran</contributor-id>
</contributor>
<contributor id="ron.johnson">
<contributor-name-display>Ron Johnson</contributor-name-display>
<contributor-id type="github">RonJohn2</contributor-id>
</contributor>
<contributor id="ronan.dunklau">
<contributor-name-display>Ronan Dunklau</contributor-name-display>
<contributor-id type="github">rdunklau</contributor-id>
src/build/config/config.yaml
+16
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@@ -2125,6 +2125,22 @@ option:
required: false
command: repo-type
repo-symlink:
section: global
group: repo
type: boolean
default: true
command:
backup: {}
expire: {}
command-role:
main: {}
depend:
option: repo-type
default: false
list:
- posix
repo-hardlink:
section: global
group: repo
src/build/help/help.xml
+12
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@@ -1272,6 +1272,18 @@
<example>n</example>
</config-key>
<config-key id="repo-symlink" name="Repository Symlink">
<summary>Create symlinks within the repository.</summary>
<text>
<p>Enable creation of the <file>lastest</file> and tablespace symlinks. These symlinks are most useful when using snapshots to do in-place recovery in the repository, which is an uncommon use case.</p>
<p>While this feature is likely not useful for the vast majority of users it remains on by default for legacy purposes. However, it may be useful to disable symlinks for Posix-like storage that does not support them.</p>
</text>
<example>n</example>
</config-key>
<config-key id="repo-target-time" name="Target Time for Repository">
<summary>Target time for repository.</summary>
src/config/config.auto.h
+2 -1
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@@ -140,7 +140,7 @@ Option constants
#define CFGOPT_VERBOSE "verbose"
#define CFGOPT_VERSION "version"
#define CFG_OPTION_TOTAL 187
#define CFG_OPTION_TOTAL 188
/***********************************************************************************************************************************
Option value constants
@@ -557,6 +557,7 @@ typedef enum
cfgOptRepoStorageTag,
cfgOptRepoStorageUploadChunkSize,
cfgOptRepoStorageVerifyTls,
cfgOptRepoSymlink,
cfgOptRepoTargetTime,
cfgOptRepoType,
cfgOptReport,
src/config/parse.auto.c.inc
+36
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@@ -9965,6 +9965,41 @@ static const ParseRuleOption parseRuleOption[CFG_OPTION_TOTAL] =
), // opt/repo-storage-verify-tls
), // opt/repo-storage-verify-tls
// -----------------------------------------------------------------------------------------------------------------------------
PARSE_RULE_OPTION // opt/repo-symlink
( // opt/repo-symlink
PARSE_RULE_OPTION_NAME("repo-symlink"), // opt/repo-symlink
PARSE_RULE_OPTION_TYPE(Boolean), // opt/repo-symlink
PARSE_RULE_OPTION_NEGATE(true), // opt/repo-symlink
PARSE_RULE_OPTION_RESET(true), // opt/repo-symlink
PARSE_RULE_OPTION_REQUIRED(true), // opt/repo-symlink
PARSE_RULE_OPTION_SECTION(Global), // opt/repo-symlink
PARSE_RULE_OPTION_GROUP_ID(Repo), // opt/repo-symlink
// opt/repo-symlink
PARSE_RULE_OPTION_COMMAND_ROLE_MAIN_VALID_LIST // opt/repo-symlink
( // opt/repo-symlink
PARSE_RULE_OPTION_COMMAND(Backup) // opt/repo-symlink
PARSE_RULE_OPTION_COMMAND(Expire) // opt/repo-symlink
), // opt/repo-symlink
// opt/repo-symlink
PARSE_RULE_OPTIONAL // opt/repo-symlink
( // opt/repo-symlink
PARSE_RULE_OPTIONAL_GROUP // opt/repo-symlink
( // opt/repo-symlink
PARSE_RULE_OPTIONAL_DEPEND // opt/repo-symlink
( // opt/repo-symlink
PARSE_RULE_OPTIONAL_DEPEND_DEFAULT(PARSE_RULE_VAL_BOOL_FALSE), // opt/repo-symlink
PARSE_RULE_VAL_OPT(RepoType), // opt/repo-symlink
PARSE_RULE_VAL_STRID(Posix), // opt/repo-symlink
), // opt/repo-symlink
// opt/repo-symlink
PARSE_RULE_OPTIONAL_DEFAULT // opt/repo-symlink
( // opt/repo-symlink
PARSE_RULE_VAL_BOOL_TRUE, // opt/repo-symlink
), // opt/repo-symlink
), // opt/repo-symlink
), // opt/repo-symlink
), // opt/repo-symlink
// -----------------------------------------------------------------------------------------------------------------------------
PARSE_RULE_OPTION // opt/repo-target-time
( // opt/repo-target-time
PARSE_RULE_OPTION_NAME("repo-target-time"), // opt/repo-target-time
@@ -11678,6 +11713,7 @@ static const uint8_t optionResolveOrder[] =
cfgOptRepoStorageTag, // opt-resolve-order
cfgOptRepoStorageUploadChunkSize, // opt-resolve-order
cfgOptRepoStorageVerifyTls, // opt-resolve-order
cfgOptRepoSymlink, // opt-resolve-order
cfgOptTarget, // opt-resolve-order
cfgOptTargetAction, // opt-resolve-order
cfgOptTargetExclusive, // opt-resolve-order
src/storage/cifs/storage.c
+1 -1
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@@ -24,5 +24,5 @@ storageCifsNew(
FUNCTION_LOG_END();
FUNCTION_LOG_RETURN(
STORAGE, storagePosixNewInternal(STORAGE_CIFS_TYPE, path, modeFile, modePath, write, pathExpressionFunction, false));
STORAGE, storagePosixNewInternal(STORAGE_CIFS_TYPE, path, modeFile, modePath, write, pathExpressionFunction, false, false));
}
src/storage/helper.c
+2 -1
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@@ -391,7 +391,8 @@ storageRepoGet(const unsigned int repoIdx, const bool write)
CHECK(AssertError, type == STORAGE_POSIX_TYPE, "invalid storage type");
result = storagePosixNewP(
cfgOptionIdxStr(cfgOptRepoPath, repoIdx), .write = write, .pathExpressionFunction = storageRepoPathExpression);
cfgOptionIdxStr(cfgOptRepoPath, repoIdx), .write = write, .pathExpressionFunction = storageRepoPathExpression,
.noSymLink = cfgOptionValid(cfgOptRepoSymlink) ? !cfgOptionIdxBool(cfgOptRepoSymlink, repoIdx) : true);
}
}
src/storage/posix/storage.c
+8 -3
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@@ -594,7 +594,7 @@ static const StorageInterface storageInterfacePosix =
FN_EXTERN Storage *
storagePosixNewInternal(
const StringId type, const String *const path, const mode_t modeFile, const mode_t modePath, const bool write,
StoragePathExpressionCallback pathExpressionFunction, const bool pathSync)
StoragePathExpressionCallback pathExpressionFunction, const bool pathSync, const bool symLink)
{
FUNCTION_LOG_BEGIN(logLevelDebug);
FUNCTION_LOG_PARAM(STRING_ID, type);
@@ -604,6 +604,7 @@ storagePosixNewInternal(
FUNCTION_LOG_PARAM(BOOL, write);
FUNCTION_LOG_PARAM(FUNCTIONP, pathExpressionFunction);
FUNCTION_LOG_PARAM(BOOL, pathSync);
FUNCTION_LOG_PARAM(BOOL, symLink);
FUNCTION_LOG_END();
ASSERT(type != 0);
@@ -628,9 +629,11 @@ storagePosixNewInternal(
// If this is a posix driver then add link features
if (type == STORAGE_POSIX_TYPE)
{
this->interface.feature |=
1 << storageFeatureHardLink | 1 << storageFeatureSymLink | 1 << storageFeaturePathSync |
1 << storageFeatureHardLink | (unsigned int)symLink << storageFeatureSymLink | 1 << storageFeaturePathSync |
1 << storageFeatureInfoDetail;
}
}
OBJ_NEW_END();
@@ -646,6 +649,7 @@ storagePosixNew(const String *const path, const StoragePosixNewParam param)
FUNCTION_LOG_PARAM(MODE, param.modeFile);
FUNCTION_LOG_PARAM(MODE, param.modePath);
FUNCTION_LOG_PARAM(BOOL, param.write);
FUNCTION_LOG_PARAM(BOOL, param.noSymLink);
FUNCTION_LOG_PARAM(FUNCTIONP, param.pathExpressionFunction);
FUNCTION_LOG_END();
@@ -653,5 +657,6 @@ storagePosixNew(const String *const path, const StoragePosixNewParam param)
STORAGE,
storagePosixNewInternal(
STORAGE_POSIX_TYPE, path, param.modeFile == 0 ? STORAGE_MODE_FILE_DEFAULT : param.modeFile,
param.modePath == 0 ? STORAGE_MODE_PATH_DEFAULT : param.modePath, param.write, param.pathExpressionFunction, true));
param.modePath == 0 ? STORAGE_MODE_PATH_DEFAULT : param.modePath, param.write, param.pathExpressionFunction, true,
!param.noSymLink));
}
src/storage/posix/storage.h
+1
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@@ -18,6 +18,7 @@ typedef struct StoragePosixNewParam
{
VAR_PARAM_HEADER;
bool write;
bool noSymLink; // Do not create symlinks on this storage
mode_t modeFile;
mode_t modePath;
StoragePathExpressionCallback *pathExpressionFunction;
src/storage/posix/storage.intern.h
+1 -1
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@@ -16,7 +16,7 @@ Constructors
***********************************************************************************************************************************/
FN_EXTERN Storage *storagePosixNewInternal(
StringId type, const String *path, mode_t modeFile, mode_t modePath, bool write,
StoragePathExpressionCallback pathExpressionFunction, bool pathSync);
StoragePathExpressionCallback pathExpressionFunction, bool pathSync, bool symLink);
/***********************************************************************************************************************************
Macros for function logging
test/src/module/command/backupTest.c
+1 -4
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@@ -2918,6 +2918,7 @@ testRun(void)
hrnCfgArgRaw(argList, cfgOptRepoPath, repoPath);
hrnCfgArgRaw(argList, cfgOptPgPath, pg1Path);
hrnCfgArgRawZ(argList, cfgOptRepoRetentionFull, "1");
hrnCfgArgRawBool(argList, cfgOptRepoSymlink, false);
hrnCfgArgRawStrId(argList, cfgOptType, backupTypeFull);
hrnCfgArgRawBool(argList, cfgOptRepoHardlink, true);
hrnCfgArgRawZ(argList, cfgOptManifestSaveThreshold, "1");
@@ -2988,9 +2989,6 @@ testRun(void)
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wcast-qual"
// Disable storageFeatureSymLink so tablespace (and latest) symlinks will not be created
((Storage *)storageRepoWrite())->pub.interface.feature ^= 1 << storageFeatureSymLink;
// Disable storageFeatureHardLink so hardlinks will not be created
((Storage *)storageRepoWrite())->pub.interface.feature ^= 1 << storageFeatureHardLink;
@@ -2999,7 +2997,6 @@ testRun(void)
TEST_RESULT_VOID(hrnCmdBackup(), "backup");
// Reset storage features
((Storage *)storageRepoWrite())->pub.interface.feature |= 1 << storageFeatureSymLink;
((Storage *)storageRepoWrite())->pub.interface.feature |= 1 << storageFeatureHardLink;
#pragma GCC diagnostic pop
test/src/module/storage/posixTest.c
+30 -1
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@@ -894,7 +894,7 @@ testRun(void)
int invalidLinkType = 9;
// -------------------------------------------------------------------------------------------------------------------------
TEST_TITLE("create soft link to BACKUPLABEL");
TEST_TITLE("soft link success/fail");
TEST_RESULT_VOID(storagePathCreateP(storageTest, backupLabel), "create path to link to");
TEST_RESULT_VOID(storageLinkCreateP(storageTest, backupLabel, latestLabel), "create symlink");
@@ -907,6 +907,14 @@ testRun(void)
TEST_RESULT_STR(info.linkDestination, backupLabel, "match link destination");
TEST_RESULT_VOID(storageRemoveP(storageTest, latestLabel), "remove symlink");
TEST_ERROR(
storageLinkCreateP(
storagePosixNewP(STRDEF("/"), .write = true, .noSymLink = true), backupLabel, latestLabel,
.linkType = storageLinkSym),
AssertError,
"assertion '(param.linkType == storageLinkSym && storageFeature(this, storageFeatureSymLink)) ||"
" (param.linkType == storageLinkHard && storageFeature(this, storageFeatureHardLink))' failed");
// -------------------------------------------------------------------------------------------------------------------------
TEST_TITLE("hardlink success/fail");
@@ -1636,6 +1644,27 @@ testRun(void)
TEST_ERROR(storageSpool(), AssertError, "stanza cannot be NULL for this storage object");
TEST_ERROR(storageSpoolWrite(), AssertError, "stanza cannot be NULL for this storage object");
// -------------------------------------------------------------------------------------------------------------------------
TEST_TITLE("enable/disable symlink");
argList = strLstNew();
hrnCfgArgRawZ(argList, cfgOptStanza, "db");
hrnCfgArgRawZ(argList, cfgOptPgPath, TEST_PATH "/db");
hrnCfgArgKeyRawZ(argList, cfgOptRepoPath, 1, TEST_PATH "/repo1");
hrnCfgArgKeyRawZ(argList, cfgOptRepoRetentionFull, 1, "1");
hrnCfgArgKeyRawZ(argList, cfgOptRepoPath, 2, TEST_PATH "/repo2");
hrnCfgArgKeyRawZ(argList, cfgOptRepoRetentionFull, 2, "1");
HRN_CFG_LOAD(cfgCmdBackup, argList);
TEST_RESULT_BOOL(storageFeature(storageRepoIdxWrite(0), storageFeatureSymLink), true, "repo1 symlink enabled");
TEST_RESULT_BOOL(storageFeature(storageRepoIdxWrite(1), storageFeatureSymLink), true, "repo2 symlink enabled");
hrnCfgArgKeyRawBool(argList, cfgOptRepoSymlink, 2, false);
HRN_CFG_LOAD(cfgCmdBackup, argList);
TEST_RESULT_BOOL(storageFeature(storageRepoIdxWrite(0), storageFeatureSymLink), true, "repo1 symlink enabled");
TEST_RESULT_BOOL(storageFeature(storageRepoIdxWrite(1), storageFeatureSymLink), false, "repo2 symlink disabled");
}
// *****************************************************************************************************************************