Fossil SCM

Add support for variable "hash policies". Increase the version number to 2.1.

drh 2017-03-05 19:51 trunk merge

Commit e92133a548351082f4d1c015c4e2cb198b340da4

Parent 7d12ba544f7ecc1…

12 files changed +1 -1 +1 +1 +4 +17 -3 +136 -20 +1 +1 +6 -1 +20 +1 +6

~ VERSION ~ src/clone.c ~ src/configure.c ~ src/content.c ~ src/db.c ~ src/hname.c ~ src/main.c ~ src/shun.c ~ src/stat.c ~ www/hashpolicy.wiki ~ www/mkindex.tcl ~ www/permutedindex.html

M VERSION

+1 -1

		--- VERSION
		+++ VERSION
		@@ -1,1 +1,1 @@
1		-2.0
	1	+2.1
2	2

	--- VERSION
	+++ VERSION
	@@ -1,1 +1,1 @@
1	2.0
2

	--- VERSION
	+++ VERSION
	@@ -1,1 +1,1 @@
1	2.1
2

M src/clone.c

		--- src/clone.c
		+++ src/clone.c
		@@ -175,10 +175,11 @@
175	175	db_initial_setup(0, 0, zDefaultUser);
176	176	user_select();
177	177	db_set("content-schema", CONTENT_SCHEMA, 0);
178	178	db_set("aux-schema", AUX_SCHEMA_MAX, 0);
179	179	db_set("rebuilt", get_version(), 0);
	180	+ db_unset("hash-policy", 0);
180	181	remember_or_get_http_auth(zHttpAuth, urlFlags & URL_REMEMBER, g.argv[2]);
181	182	url_remember();
182	183	if( g.zSSLIdentity!=0 ){
183	184	/* If the --ssl-identity option was specified, store it as a setting */
184	185	Blob fn;
185	186

	--- src/clone.c
	+++ src/clone.c
	@@ -175,10 +175,11 @@
175	db_initial_setup(0, 0, zDefaultUser);
176	user_select();
177	db_set("content-schema", CONTENT_SCHEMA, 0);
178	db_set("aux-schema", AUX_SCHEMA_MAX, 0);
179	db_set("rebuilt", get_version(), 0);

180	remember_or_get_http_auth(zHttpAuth, urlFlags & URL_REMEMBER, g.argv[2]);
181	url_remember();
182	if( g.zSSLIdentity!=0 ){
183	/* If the --ssl-identity option was specified, store it as a setting */
184	Blob fn;
185

	--- src/clone.c
	+++ src/clone.c
	@@ -175,10 +175,11 @@
175	db_initial_setup(0, 0, zDefaultUser);
176	user_select();
177	db_set("content-schema", CONTENT_SCHEMA, 0);
178	db_set("aux-schema", AUX_SCHEMA_MAX, 0);
179	db_set("rebuilt", get_version(), 0);
180	db_unset("hash-policy", 0);
181	remember_or_get_http_auth(zHttpAuth, urlFlags & URL_REMEMBER, g.argv[2]);
182	url_remember();
183	if( g.zSSLIdentity!=0 ){
184	/* If the --ssl-identity option was specified, store it as a setting */
185	Blob fn;
186

M src/configure.c

		--- src/configure.c
		+++ src/configure.c
		@@ -129,10 +129,11 @@
129	129	{ "empty-dirs", CONFIGSET_PROJ },
130	130	{ "allow-symlinks", CONFIGSET_PROJ },
131	131	{ "dotfiles", CONFIGSET_PROJ },
132	132	{ "parent-project-code", CONFIGSET_PROJ },
133	133	{ "parent-project-name", CONFIGSET_PROJ },
	134	+ { "hash-policy", CONFIGSET_PROJ },
134	135
135	136	#ifdef FOSSIL_ENABLE_LEGACY_MV_RM
136	137	{ "mv-rm-files", CONFIGSET_PROJ },
137	138	#endif
138	139
139	140

	--- src/configure.c
	+++ src/configure.c
	@@ -129,10 +129,11 @@
129	{ "empty-dirs", CONFIGSET_PROJ },
130	{ "allow-symlinks", CONFIGSET_PROJ },
131	{ "dotfiles", CONFIGSET_PROJ },
132	{ "parent-project-code", CONFIGSET_PROJ },
133	{ "parent-project-name", CONFIGSET_PROJ },

134
135	#ifdef FOSSIL_ENABLE_LEGACY_MV_RM
136	{ "mv-rm-files", CONFIGSET_PROJ },
137	#endif
138
139

	--- src/configure.c
	+++ src/configure.c
	@@ -129,10 +129,11 @@
129	{ "empty-dirs", CONFIGSET_PROJ },
130	{ "allow-symlinks", CONFIGSET_PROJ },
131	{ "dotfiles", CONFIGSET_PROJ },
132	{ "parent-project-code", CONFIGSET_PROJ },
133	{ "parent-project-name", CONFIGSET_PROJ },
134	{ "hash-policy", CONFIGSET_PROJ },
135
136	#ifdef FOSSIL_ENABLE_LEGACY_MV_RM
137	{ "mv-rm-files", CONFIGSET_PROJ },
138	#endif
139
140

M src/content.c

		--- src/content.c
		+++ src/content.c
		@@ -528,10 +528,14 @@
528	528	blob_reset(&hash);
529	529	hname_hash(pBlob, 0, &hash);
530	530	}
531	531	}else{
532	532	blob_init(&hash, zUuid, -1);
	533	+ }
	534	+ if( g.eHashPolicy==HPOLICY_AUTO && blob_size(&hash)>HNAME_LEN_SHA1 ){
	535	+ g.eHashPolicy = HPOLICY_SHA3;
	536	+ db_set_int("hash-policy", HPOLICY_SHA3, 0);
533	537	}
534	538	if( nBlob ){
535	539	size = nBlob;
536	540	}else{
537	541	size = blob_size(pBlob);
538	542

	--- src/content.c
	+++ src/content.c
	@@ -528,10 +528,14 @@
528	blob_reset(&hash);
529	hname_hash(pBlob, 0, &hash);
530	}
531	}else{
532	blob_init(&hash, zUuid, -1);




533	}
534	if( nBlob ){
535	size = nBlob;
536	}else{
537	size = blob_size(pBlob);
538

	--- src/content.c
	+++ src/content.c
	@@ -528,10 +528,14 @@
528	blob_reset(&hash);
529	hname_hash(pBlob, 0, &hash);
530	}
531	}else{
532	blob_init(&hash, zUuid, -1);
533	}
534	if( g.eHashPolicy==HPOLICY_AUTO && blob_size(&hash)>HNAME_LEN_SHA1 ){
535	g.eHashPolicy = HPOLICY_SHA3;
536	db_set_int("hash-policy", HPOLICY_SHA3, 0);
537	}
538	if( nBlob ){
539	size = nBlob;
540	}else{
541	size = blob_size(pBlob);
542

M src/db.c

+17 -3

		--- src/db.c
		+++ src/db.c
		@@ -1485,10 +1485,15 @@
1485	1485	g.repositoryOpen = 1;
1486	1486	/* Cache "allow-symlinks" option, because we'll need it on every stat call */
1487	1487	g.allowSymlinks = db_get_boolean("allow-symlinks",
1488	1488	db_allow_symlinks_by_default());
1489	1489	g.zAuxSchema = db_get("aux-schema","");
	1490	+ g.eHashPolicy = db_get_int("hash-policy",-1);
	1491	+ if( g.eHashPolicy<0 ){
	1492	+ g.eHashPolicy = hname_default_policy();
	1493	+ db_set_int("hash-policy", g.eHashPolicy, 0);
	1494	+ }
1490	1495
1491	1496	/* If the ALIAS table is not present, then some on-the-fly schema
1492	1497	** updates might be required.
1493	1498	*/
1494	1499	rebuild_schema_update_2_0(); /* Do the Fossil-2.0 schema updates */
		@@ -1828,10 +1833,11 @@
1828	1833	" AND name NOT GLOB 'project-*'"
1829	1834	" AND name NOT GLOB 'short-project-*';",
1830	1835	configure_inop_rhs(CONFIGSET_ALL),
1831	1836	db_setting_inop_rhs()
1832	1837	);
	1838	+ g.eHashPolicy = db_get_int("hash-policy", g.eHashPolicy);
1833	1839	db_multi_exec(
1834	1840	"REPLACE INTO reportfmt SELECT * FROM settingSrc.reportfmt;"
1835	1841	);
1836	1842
1837	1843	/*
		@@ -1900,13 +1906,14 @@
1900	1906	** their associated permissions will not be copied; however, the system
1901	1907	** default users "anonymous", "nobody", "reader", "developer", and their
1902	1908	** associated permissions will be copied.
1903	1909	**
1904	1910	** Options:
1905		-** --template FILE copy settings from repository file
1906		-** --admin-user\|-A USERNAME select given USERNAME as admin user
1907		-** --date-override DATETIME use DATETIME as time of the initial check-in
	1911	+** --template FILE Copy settings from repository file
	1912	+** --admin-user\|-A USERNAME Select given USERNAME as admin user
	1913	+** --date-override DATETIME Use DATETIME as time of the initial check-in
	1914	+** --sha1 Use a initial hash policy of "sha1"
1908	1915	**
1909	1916	** DATETIME may be "now" or "YYYY-MM-DDTHH:MM:SS.SSS". If in
1910	1917	** year-month-day form, it may be truncated, the "T" may be replaced by
1911	1918	** a space, and it may also name a timezone offset from UTC as "-HH:MM"
1912	1919	** (westward) or "+HH:MM" (eastward). Either no timezone suffix or "Z"
		@@ -1917,14 +1924,17 @@
1917	1924	void create_repository_cmd(void){
1918	1925	char *zPassword;
1919	1926	const char zTemplate; / Repository from which to copy settings */
1920	1927	const char zDate; / Date of the initial check-in */
1921	1928	const char zDefaultUser; / Optional name of the default user */
	1929	+ int bUseSha1 = 0; /* True to set the hash-policy to sha1 */
	1930	+
1922	1931
1923	1932	zTemplate = find_option("template",0,1);
1924	1933	zDate = find_option("date-override",0,1);
1925	1934	zDefaultUser = find_option("admin-user","A",1);
	1935	+ bUseSha1 = find_option("sha1",0,0)!=0;
1926	1936	/* We should be done with options.. */
1927	1937	verify_all_options();
1928	1938
1929	1939	if( g.argc!=3 ){
1930	1940	usage("REPOSITORY-NAME");
		@@ -1937,10 +1947,14 @@
1937	1947	db_create_repository(g.argv[2]);
1938	1948	db_open_repository(g.argv[2]);
1939	1949	db_open_config(0, 0);
1940	1950	if( zTemplate ) db_attach(zTemplate, "settingSrc");
1941	1951	db_begin_transaction();
	1952	+ if( bUseSha1 ){
	1953	+ g.eHashPolicy = HPOLICY_SHA1;
	1954	+ db_set_int("hash-policy", HPOLICY_SHA1, 0);
	1955	+ }
1942	1956	if( zDate==0 ) zDate = "now";
1943	1957	db_initial_setup(zTemplate, zDate, zDefaultUser);
1944	1958	db_end_transaction(0);
1945	1959	if( zTemplate ) db_detach("settingSrc");
1946	1960	fossil_print("project-id: %s\n", db_get("project-code", 0));
1947	1961

	--- src/db.c
	+++ src/db.c
	@@ -1485,10 +1485,15 @@
1485	g.repositoryOpen = 1;
1486	/* Cache "allow-symlinks" option, because we'll need it on every stat call */
1487	g.allowSymlinks = db_get_boolean("allow-symlinks",
1488	db_allow_symlinks_by_default());
1489	g.zAuxSchema = db_get("aux-schema","");





1490
1491	/* If the ALIAS table is not present, then some on-the-fly schema
1492	** updates might be required.
1493	*/
1494	rebuild_schema_update_2_0(); /* Do the Fossil-2.0 schema updates */
	@@ -1828,10 +1833,11 @@
1828	" AND name NOT GLOB 'project-*'"
1829	" AND name NOT GLOB 'short-project-*';",
1830	configure_inop_rhs(CONFIGSET_ALL),
1831	db_setting_inop_rhs()
1832	);

1833	db_multi_exec(
1834	"REPLACE INTO reportfmt SELECT * FROM settingSrc.reportfmt;"
1835	);
1836
1837	/*
	@@ -1900,13 +1906,14 @@
1900	** their associated permissions will not be copied; however, the system
1901	** default users "anonymous", "nobody", "reader", "developer", and their
1902	** associated permissions will be copied.
1903	**
1904	** Options:
1905	** --template FILE copy settings from repository file
1906	** --admin-user\|-A USERNAME select given USERNAME as admin user
1907	** --date-override DATETIME use DATETIME as time of the initial check-in

1908	**
1909	** DATETIME may be "now" or "YYYY-MM-DDTHH:MM:SS.SSS". If in
1910	** year-month-day form, it may be truncated, the "T" may be replaced by
1911	** a space, and it may also name a timezone offset from UTC as "-HH:MM"
1912	** (westward) or "+HH:MM" (eastward). Either no timezone suffix or "Z"
	@@ -1917,14 +1924,17 @@
1917	void create_repository_cmd(void){
1918	char *zPassword;
1919	const char zTemplate; / Repository from which to copy settings */
1920	const char zDate; / Date of the initial check-in */
1921	const char zDefaultUser; / Optional name of the default user */


1922
1923	zTemplate = find_option("template",0,1);
1924	zDate = find_option("date-override",0,1);
1925	zDefaultUser = find_option("admin-user","A",1);

1926	/* We should be done with options.. */
1927	verify_all_options();
1928
1929	if( g.argc!=3 ){
1930	usage("REPOSITORY-NAME");
	@@ -1937,10 +1947,14 @@
1937	db_create_repository(g.argv[2]);
1938	db_open_repository(g.argv[2]);
1939	db_open_config(0, 0);
1940	if( zTemplate ) db_attach(zTemplate, "settingSrc");
1941	db_begin_transaction();




1942	if( zDate==0 ) zDate = "now";
1943	db_initial_setup(zTemplate, zDate, zDefaultUser);
1944	db_end_transaction(0);
1945	if( zTemplate ) db_detach("settingSrc");
1946	fossil_print("project-id: %s\n", db_get("project-code", 0));
1947

	--- src/db.c
	+++ src/db.c
	@@ -1485,10 +1485,15 @@
1485	g.repositoryOpen = 1;
1486	/* Cache "allow-symlinks" option, because we'll need it on every stat call */
1487	g.allowSymlinks = db_get_boolean("allow-symlinks",
1488	db_allow_symlinks_by_default());
1489	g.zAuxSchema = db_get("aux-schema","");
1490	g.eHashPolicy = db_get_int("hash-policy",-1);
1491	if( g.eHashPolicy<0 ){
1492	g.eHashPolicy = hname_default_policy();
1493	db_set_int("hash-policy", g.eHashPolicy, 0);
1494	}
1495
1496	/* If the ALIAS table is not present, then some on-the-fly schema
1497	** updates might be required.
1498	*/
1499	rebuild_schema_update_2_0(); /* Do the Fossil-2.0 schema updates */
	@@ -1828,10 +1833,11 @@
1833	" AND name NOT GLOB 'project-*'"
1834	" AND name NOT GLOB 'short-project-*';",
1835	configure_inop_rhs(CONFIGSET_ALL),
1836	db_setting_inop_rhs()
1837	);
1838	g.eHashPolicy = db_get_int("hash-policy", g.eHashPolicy);
1839	db_multi_exec(
1840	"REPLACE INTO reportfmt SELECT * FROM settingSrc.reportfmt;"
1841	);
1842
1843	/*
	@@ -1900,13 +1906,14 @@
1906	** their associated permissions will not be copied; however, the system
1907	** default users "anonymous", "nobody", "reader", "developer", and their
1908	** associated permissions will be copied.
1909	**
1910	** Options:
1911	** --template FILE Copy settings from repository file
1912	** --admin-user\|-A USERNAME Select given USERNAME as admin user
1913	** --date-override DATETIME Use DATETIME as time of the initial check-in
1914	** --sha1 Use a initial hash policy of "sha1"
1915	**
1916	** DATETIME may be "now" or "YYYY-MM-DDTHH:MM:SS.SSS". If in
1917	** year-month-day form, it may be truncated, the "T" may be replaced by
1918	** a space, and it may also name a timezone offset from UTC as "-HH:MM"
1919	** (westward) or "+HH:MM" (eastward). Either no timezone suffix or "Z"
	@@ -1917,14 +1924,17 @@
1924	void create_repository_cmd(void){
1925	char *zPassword;
1926	const char zTemplate; / Repository from which to copy settings */
1927	const char zDate; / Date of the initial check-in */
1928	const char zDefaultUser; / Optional name of the default user */
1929	int bUseSha1 = 0; /* True to set the hash-policy to sha1 */
1930
1931
1932	zTemplate = find_option("template",0,1);
1933	zDate = find_option("date-override",0,1);
1934	zDefaultUser = find_option("admin-user","A",1);
1935	bUseSha1 = find_option("sha1",0,0)!=0;
1936	/* We should be done with options.. */
1937	verify_all_options();
1938
1939	if( g.argc!=3 ){
1940	usage("REPOSITORY-NAME");
	@@ -1937,10 +1947,14 @@
1947	db_create_repository(g.argv[2]);
1948	db_open_repository(g.argv[2]);
1949	db_open_config(0, 0);
1950	if( zTemplate ) db_attach(zTemplate, "settingSrc");
1951	db_begin_transaction();
1952	if( bUseSha1 ){
1953	g.eHashPolicy = HPOLICY_SHA1;
1954	db_set_int("hash-policy", HPOLICY_SHA1, 0);
1955	}
1956	if( zDate==0 ) zDate = "now";
1957	db_initial_setup(zTemplate, zDate, zDefaultUser);
1958	db_end_transaction(0);
1959	if( zTemplate ) db_detach("settingSrc");
1960	fossil_print("project-id: %s\n", db_get("project-code", 0));
1961

M src/hname.c

+136 -20

		--- src/hname.c
		+++ src/hname.c
		@@ -16,11 +16,13 @@
16	16	*******************************************************************************
17	17	**
18	18	** This file contains generic code for dealing with hashes used for
19	19	** naming artifacts. Specific hash algorithms are implemented separately
20	20	** (for example in sha1.c and sha3.c). This file contains the generic
21		-** interface code.
	21	+** interface logic.
	22	+**
	23	+** "hname" is intended to be an abbreviation of "hash name".
22	24	*/
23	25	#include "config.h"
24	26	#include "hname.h"
25	27
26	28
		@@ -47,10 +49,19 @@
47	49	/*
48	50	** The number of distinct hash algorithms:
49	51	*/
50	52	#define HNAME_COUNT 2 /* Just SHA1 and SHA3-256. Let's keep it that way! */
51	53
	54	+/*
	55	+** Hash naming policies
	56	+*/
	57	+#define HPOLICY_SHA1 0 /* Use SHA1 hashes */
	58	+#define HPOLICY_AUTO 1 /* SHA1 but auto-promote to SHA3 */
	59	+#define HPOLICY_SHA3 2 /* Use SHA3 hashes */
	60	+#define HPOLICY_SHA3_ONLY 3 /* Use SHA3 hashes exclusively */
	61	+#define HPOLICY_SHUN_SHA1 4 /* Shun all SHA1 objects */
	62	+
52	63	#endif /* INTERFACE */
53	64
54	65	/*
55	66	** Return a human-readable name for the hash algorithm given a hash with
56	67	** a length of nHash hexadecimal digits.
		@@ -142,26 +153,131 @@
142	153
143	154	/*
144	155	** Compute a hash on blob pContent. Write the hash into blob pHashOut.
145	156	** This routine assumes that pHashOut is uninitialized.
146	157	**
147		-** The preferred hash is used for iHType==0, and various alternative hashes
148		-** are used for iHType>0 && iHType<NHAME_COUNT.
	158	+** The preferred hash is used for iHType==0 and the alternative hash is
	159	+** used if iHType==1. (The interface is designed to accommodate more than
	160	+** just two hashes, but HNAME_COUNT is currently fixed at 2.)
	161	+**
	162	+** Depending on the hash policy, the alternative hash may be disallowed.
	163	+** If the alterative hash is disallowed, the routine returns 0. This
	164	+** routine returns 1 if iHType>0 and the alternative hash is allowed,
	165	+** and it always returns 1 when iHType==0.
	166	+**
	167	+** Alternative hash is disallowed for all hash policies except sha1
	168	+** and sha3.
	169	+*/
	170	+int hname_hash(const Blob pContent, unsigned int iHType, Blob pHashOut){
	171	+ assert( iHType==0 \|\| iHType==1 );
	172	+ if( iHType==1 ){
	173	+ switch( g.eHashPolicy ){
	174	+ case HPOLICY_SHA1:
	175	+ sha3sum_blob(pContent, 256, pHashOut);
	176	+ return 1;
	177	+ case HPOLICY_SHA3:
	178	+ sha1sum_blob(pContent, pHashOut);
	179	+ return 1;
	180	+ }
	181	+ }
	182	+ if( iHType==0 ){
	183	+ switch( g.eHashPolicy ){
	184	+ case HPOLICY_SHA1:
	185	+ case HPOLICY_AUTO:
	186	+ sha1sum_blob(pContent, pHashOut);
	187	+ return 1;
	188	+ case HPOLICY_SHA3:
	189	+ case HPOLICY_SHA3_ONLY:
	190	+ case HPOLICY_SHUN_SHA1:
	191	+ sha3sum_blob(pContent, 256, pHashOut);
	192	+ return 1;
	193	+ }
	194	+ }
	195	+ blob_init(pHashOut, 0, 0);
	196	+ return 0;
	197	+}
	198	+
	199	+/*
	200	+** Return the default hash policy for repositories that do not currently
	201	+** have an assigned hash policy.
	202	+**
	203	+** Make the default HPOLICY_AUTO if there are SHA1 artficates but no SHA3
	204	+** artifacts in the repository. Make the default HPOLICY_SHA3 if there
	205	+** are one or more SHA3 artifacts or if the repository is initially empty.
	206	+*/
	207	+int hname_default_policy(void){
	208	+ if( db_exists("SELECT 1 FROM blob WHERE length(uuid)>40")
	209	+ \|\| !db_exists("SELECT 1 FROM blob WHERE length(uuid)==40")
	210	+ ){
	211	+ return HPOLICY_SHA3;
	212	+ }else{
	213	+ return HPOLICY_AUTO;
	214	+ }
	215	+}
	216	+
	217	+/*
	218	+** Names of the hash policies.
	219	+*/
	220	+static const char *azPolicy[] = {
	221	+ "sha1", "auto", "sha3", "sha3-only", "shun-sha1"
	222	+};
	223	+
	224	+/* Return the name of the current hash policy.
	225	+*/
	226	+const char *hpolicy_name(void){
	227	+ return azPolicy[g.eHashPolicy];
	228	+}
	229	+
	230	+
	231	+/*
	232	+** COMMAND: hash-policy*
	233	+**
	234	+** Usage: fossil hash-policy ?NEW-POLICY?
	235	+**
	236	+** Query or set the hash policy for the current repository. Available hash
	237	+** policies are as follows:
	238	+**
	239	+** sha1 New artifact names are created using SHA1
	240	+**
	241	+** auto New artifact names are created using SHA1, but
	242	+** automatically change the policy to "sha3" when
	243	+** any SHA3 artifact enters the repository.
	244	+**
	245	+** sha3 New artifact names are created using SHA3, but
	246	+** older artifacts with SHA1 names may be reused.
	247	+**
	248	+** sha3-only Use only SHA3 artifact names. Do not reuse legacy
	249	+** SHA1 names.
	250	+**
	251	+** shun-sha1 Shun any SHA1 artifacts received by sync operations
	252	+** other than clones. Older legacy SHA1 artifacts are
	253	+** are allowed during a clone.
	254	+**
	255	+** The default hash policy for existing repositories is "auto", which will
	256	+** immediately promote to "sha3" if the repository contains one or more
	257	+** artifacts with SHA3 names. The default hash policy for new repositories
	258	+** is "shun-sha1".
149	259	*/
150		-void hname_hash(const Blob pContent, unsigned int iHType, Blob pHashOut){
151		-#if RELEASE_VERSION_NUMBER>=20100
152		- /* For Fossil 2.1 and later, the preferred hash algorithm is SHA3-256 and
153		- ** SHA1 is the secondary hash algorithm. */
154		- switch( iHType ){
155		- case 0: sha3sum_blob(pContent, 256, pHashOut); break;
156		- case 1: sha1sum_blob(pContent, pHashOut); break;
157		- }
158		-#else
159		- /* Prior to Fossil 2.1, the preferred hash algorithm is SHA1 (for backwards
160		- ** compatibility with Fossil 1.x) and SHA3-256 is the only auxiliary
161		- ** algorithm */
162		- switch( iHType ){
163		- case 0: sha1sum_blob(pContent, pHashOut); break;
164		- case 1: sha3sum_blob(pContent, 256, pHashOut); break;
165		- }
166		-#endif
	260	+void hash_policy_command(void){
	261	+ int i;
	262	+ db_find_and_open_repository(0, 0);
	263	+ if( g.argc!=2 && g.argc!=3 ) usage("?NEW-POLICY?");
	264	+ if( g.argc==2 ){
	265	+ fossil_print("%s\n", azPolicy[g.eHashPolicy]);
	266	+ return;
	267	+ }
	268	+ for(i=HPOLICY_SHA1; i<=HPOLICY_SHUN_SHA1; i++){
	269	+ if( fossil_strcmp(g.argv[2],azPolicy[i])==0 ){
	270	+ if( i==HPOLICY_AUTO
	271	+ && db_exists("SELECT 1 FROM blob WHERE length(uuid)>40")
	272	+ ){
	273	+ i = HPOLICY_SHA3;
	274	+ }
	275	+ g.eHashPolicy = i;
	276	+ db_set_int("hash-policy", i, 0);
	277	+ fossil_print("%s\n", azPolicy[i]);
	278	+ return;
	279	+ }
	280	+ }
	281	+ fossil_fatal("unknown hash policy \"%s\" - should be one of: sha1 auto"
	282	+ " sha3 sha3-only shun-sha1", g.argv[2]);
167	283	}
168	284

	--- src/hname.c
	+++ src/hname.c
	@@ -16,11 +16,13 @@
16	*******************************************************************************
17	**
18	** This file contains generic code for dealing with hashes used for
19	** naming artifacts. Specific hash algorithms are implemented separately
20	** (for example in sha1.c and sha3.c). This file contains the generic
21	** interface code.


22	*/
23	#include "config.h"
24	#include "hname.h"
25
26
	@@ -47,10 +49,19 @@
47	/*
48	** The number of distinct hash algorithms:
49	*/
50	#define HNAME_COUNT 2 /* Just SHA1 and SHA3-256. Let's keep it that way! */
51









52	#endif /* INTERFACE */
53
54	/*
55	** Return a human-readable name for the hash algorithm given a hash with
56	** a length of nHash hexadecimal digits.
	@@ -142,26 +153,131 @@
142
143	/*
144	** Compute a hash on blob pContent. Write the hash into blob pHashOut.
145	** This routine assumes that pHashOut is uninitialized.
146	**
147	** The preferred hash is used for iHType==0, and various alternative hashes
148	** are used for iHType>0 && iHType<NHAME_COUNT.



































































































149	*/
150	void hname_hash(const Blob pContent, unsigned int iHType, Blob pHashOut){
151	#if RELEASE_VERSION_NUMBER>=20100
152	/* For Fossil 2.1 and later, the preferred hash algorithm is SHA3-256 and
153	** SHA1 is the secondary hash algorithm. */
154	switch( iHType ){
155	case 0: sha3sum_blob(pContent, 256, pHashOut); break;
156	case 1: sha1sum_blob(pContent, pHashOut); break;
157	}
158	#else
159	/* Prior to Fossil 2.1, the preferred hash algorithm is SHA1 (for backwards
160	** compatibility with Fossil 1.x) and SHA3-256 is the only auxiliary
161	** algorithm */
162	switch( iHType ){
163	case 0: sha1sum_blob(pContent, pHashOut); break;
164	case 1: sha3sum_blob(pContent, 256, pHashOut); break;
165	}
166	#endif






167	}
168

	--- src/hname.c
	+++ src/hname.c
	@@ -16,11 +16,13 @@
16	*******************************************************************************
17	**
18	** This file contains generic code for dealing with hashes used for
19	** naming artifacts. Specific hash algorithms are implemented separately
20	** (for example in sha1.c and sha3.c). This file contains the generic
21	** interface logic.
22	**
23	** "hname" is intended to be an abbreviation of "hash name".
24	*/
25	#include "config.h"
26	#include "hname.h"
27
28
	@@ -47,10 +49,19 @@
49	/*
50	** The number of distinct hash algorithms:
51	*/
52	#define HNAME_COUNT 2 /* Just SHA1 and SHA3-256. Let's keep it that way! */
53
54	/*
55	** Hash naming policies
56	*/
57	#define HPOLICY_SHA1 0 /* Use SHA1 hashes */
58	#define HPOLICY_AUTO 1 /* SHA1 but auto-promote to SHA3 */
59	#define HPOLICY_SHA3 2 /* Use SHA3 hashes */
60	#define HPOLICY_SHA3_ONLY 3 /* Use SHA3 hashes exclusively */
61	#define HPOLICY_SHUN_SHA1 4 /* Shun all SHA1 objects */
62
63	#endif /* INTERFACE */
64
65	/*
66	** Return a human-readable name for the hash algorithm given a hash with
67	** a length of nHash hexadecimal digits.
	@@ -142,26 +153,131 @@
153
154	/*
155	** Compute a hash on blob pContent. Write the hash into blob pHashOut.
156	** This routine assumes that pHashOut is uninitialized.
157	**
158	** The preferred hash is used for iHType==0 and the alternative hash is
159	** used if iHType==1. (The interface is designed to accommodate more than
160	** just two hashes, but HNAME_COUNT is currently fixed at 2.)
161	**
162	** Depending on the hash policy, the alternative hash may be disallowed.
163	** If the alterative hash is disallowed, the routine returns 0. This
164	** routine returns 1 if iHType>0 and the alternative hash is allowed,
165	** and it always returns 1 when iHType==0.
166	**
167	** Alternative hash is disallowed for all hash policies except sha1
168	** and sha3.
169	*/
170	int hname_hash(const Blob pContent, unsigned int iHType, Blob pHashOut){
171	assert( iHType==0 \|\| iHType==1 );
172	if( iHType==1 ){
173	switch( g.eHashPolicy ){
174	case HPOLICY_SHA1:
175	sha3sum_blob(pContent, 256, pHashOut);
176	return 1;
177	case HPOLICY_SHA3:
178	sha1sum_blob(pContent, pHashOut);
179	return 1;
180	}
181	}
182	if( iHType==0 ){
183	switch( g.eHashPolicy ){
184	case HPOLICY_SHA1:
185	case HPOLICY_AUTO:
186	sha1sum_blob(pContent, pHashOut);
187	return 1;
188	case HPOLICY_SHA3:
189	case HPOLICY_SHA3_ONLY:
190	case HPOLICY_SHUN_SHA1:
191	sha3sum_blob(pContent, 256, pHashOut);
192	return 1;
193	}
194	}
195	blob_init(pHashOut, 0, 0);
196	return 0;
197	}
198
199	/*
200	** Return the default hash policy for repositories that do not currently
201	** have an assigned hash policy.
202	**
203	** Make the default HPOLICY_AUTO if there are SHA1 artficates but no SHA3
204	** artifacts in the repository. Make the default HPOLICY_SHA3 if there
205	** are one or more SHA3 artifacts or if the repository is initially empty.
206	*/
207	int hname_default_policy(void){
208	if( db_exists("SELECT 1 FROM blob WHERE length(uuid)>40")
209	\|\| !db_exists("SELECT 1 FROM blob WHERE length(uuid)==40")
210	){
211	return HPOLICY_SHA3;
212	}else{
213	return HPOLICY_AUTO;
214	}
215	}
216
217	/*
218	** Names of the hash policies.
219	*/
220	static const char *azPolicy[] = {
221	"sha1", "auto", "sha3", "sha3-only", "shun-sha1"
222	};
223
224	/* Return the name of the current hash policy.
225	*/
226	const char *hpolicy_name(void){
227	return azPolicy[g.eHashPolicy];
228	}
229
230
231	/*
232	** COMMAND: hash-policy*
233	**
234	** Usage: fossil hash-policy ?NEW-POLICY?
235	**
236	** Query or set the hash policy for the current repository. Available hash
237	** policies are as follows:
238	**
239	** sha1 New artifact names are created using SHA1
240	**
241	** auto New artifact names are created using SHA1, but
242	** automatically change the policy to "sha3" when
243	** any SHA3 artifact enters the repository.
244	**
245	** sha3 New artifact names are created using SHA3, but
246	** older artifacts with SHA1 names may be reused.
247	**
248	** sha3-only Use only SHA3 artifact names. Do not reuse legacy
249	** SHA1 names.
250	**
251	** shun-sha1 Shun any SHA1 artifacts received by sync operations
252	** other than clones. Older legacy SHA1 artifacts are
253	** are allowed during a clone.
254	**
255	** The default hash policy for existing repositories is "auto", which will
256	** immediately promote to "sha3" if the repository contains one or more
257	** artifacts with SHA3 names. The default hash policy for new repositories
258	** is "shun-sha1".
259	*/
260	void hash_policy_command(void){
261	int i;
262	db_find_and_open_repository(0, 0);
263	if( g.argc!=2 && g.argc!=3 ) usage("?NEW-POLICY?");
264	if( g.argc==2 ){
265	fossil_print("%s\n", azPolicy[g.eHashPolicy]);
266	return;
267	}
268	for(i=HPOLICY_SHA1; i<=HPOLICY_SHUN_SHA1; i++){
269	if( fossil_strcmp(g.argv[2],azPolicy[i])==0 ){
270	if( i==HPOLICY_AUTO
271	&& db_exists("SELECT 1 FROM blob WHERE length(uuid)>40")
272	){
273	i = HPOLICY_SHA3;
274	}
275	g.eHashPolicy = i;
276	db_set_int("hash-policy", i, 0);
277	fossil_print("%s\n", azPolicy[i]);
278	return;
279	}
280	}
281	fossil_fatal("unknown hash policy \"%s\" - should be one of: sha1 auto"
282	" sha3 sha3-only shun-sha1", g.argv[2]);
283	}
284

M src/main.c

		--- src/main.c
		+++ src/main.c
		@@ -140,10 +140,11 @@
140	140	char zLocalDbName; / Name of the local database file */
141	141	char zOpenRevision; / Check-in version to use during database open */
142	142	int localOpen; /* True if the local database is open */
143	143	char zLocalRoot; / The directory holding the local database */
144	144	int minPrefix; /* Number of digits needed for a distinct UUID */
	145	+ int eHashPolicy; /* Current hash policy. On of HPOLICY_* */
145	146	int fNoDirSymlinks; /* True if --no-dir-symlinks flag is present */
146	147	int fSqlTrace; /* True if --sqltrace flag is present */
147	148	int fSqlStats; /* True if --sqltrace or --sqlstats are present */
148	149	int fSqlPrint; /* True if -sqlprint flag is present */
149	150	int fQuiet; /* True if -quiet flag is present */
150	151

	--- src/main.c
	+++ src/main.c
	@@ -140,10 +140,11 @@
140	char zLocalDbName; / Name of the local database file */
141	char zOpenRevision; / Check-in version to use during database open */
142	int localOpen; /* True if the local database is open */
143	char zLocalRoot; / The directory holding the local database */
144	int minPrefix; /* Number of digits needed for a distinct UUID */

145	int fNoDirSymlinks; /* True if --no-dir-symlinks flag is present */
146	int fSqlTrace; /* True if --sqltrace flag is present */
147	int fSqlStats; /* True if --sqltrace or --sqlstats are present */
148	int fSqlPrint; /* True if -sqlprint flag is present */
149	int fQuiet; /* True if -quiet flag is present */
150

	--- src/main.c
	+++ src/main.c
	@@ -140,10 +140,11 @@
140	char zLocalDbName; / Name of the local database file */
141	char zOpenRevision; / Check-in version to use during database open */
142	int localOpen; /* True if the local database is open */
143	char zLocalRoot; / The directory holding the local database */
144	int minPrefix; /* Number of digits needed for a distinct UUID */
145	int eHashPolicy; /* Current hash policy. On of HPOLICY_* */
146	int fNoDirSymlinks; /* True if --no-dir-symlinks flag is present */
147	int fSqlTrace; /* True if --sqltrace flag is present */
148	int fSqlStats; /* True if --sqltrace or --sqlstats are present */
149	int fSqlPrint; /* True if -sqlprint flag is present */
150	int fQuiet; /* True if -quiet flag is present */
151

M src/shun.c

		--- src/shun.c
		+++ src/shun.c
		@@ -26,10 +26,11 @@
26	26	*/
27	27	int uuid_is_shunned(const char *zUuid){
28	28	static Stmt q;
29	29	int rc;
30	30	if( zUuid==0 \|\| zUuid[0]==0 ) return 0;
	31	+ if( g.eHashPolicy==HPOLICY_SHUN_SHA1 && zUuid[HNAME_LEN_SHA1]==0 ) return 1;
31	32	db_static_prepare(&q, "SELECT 1 FROM shun WHERE uuid=:uuid");
32	33	db_bind_text(&q, ":uuid", zUuid);
33	34	rc = db_step(&q);
34	35	db_reset(&q);
35	36	return rc==SQLITE_ROW;
36	37

	--- src/shun.c
	+++ src/shun.c
	@@ -26,10 +26,11 @@
26	*/
27	int uuid_is_shunned(const char *zUuid){
28	static Stmt q;
29	int rc;
30	if( zUuid==0 \|\| zUuid[0]==0 ) return 0;

31	db_static_prepare(&q, "SELECT 1 FROM shun WHERE uuid=:uuid");
32	db_bind_text(&q, ":uuid", zUuid);
33	rc = db_step(&q);
34	db_reset(&q);
35	return rc==SQLITE_ROW;
36

	--- src/shun.c
	+++ src/shun.c
	@@ -26,10 +26,11 @@
26	*/
27	int uuid_is_shunned(const char *zUuid){
28	static Stmt q;
29	int rc;
30	if( zUuid==0 \|\| zUuid[0]==0 ) return 0;
31	if( g.eHashPolicy==HPOLICY_SHUN_SHA1 && zUuid[HNAME_LEN_SHA1]==0 ) return 1;
32	db_static_prepare(&q, "SELECT 1 FROM shun WHERE uuid=:uuid");
33	db_bind_text(&q, ":uuid", zUuid);
34	rc = db_step(&q);
35	db_reset(&q);
36	return rc==SQLITE_ROW;
37

M src/stat.c

+6 -1

		--- src/stat.c
		+++ src/stat.c
		@@ -183,11 +183,16 @@
183	183	@ (%h(RELEASE_VERSION)) <a href='version?verbose=1'>(details)</a>
184	184	@ </td></tr>
185	185	@ <tr><th>SQLite Version:</th><td>%.19s(sqlite3_sourceid())
186	186	@ [%.10s(&sqlite3_sourceid()[20])] (%s(sqlite3_libversion()))
187	187	@ <a href='version?verbose=2'>(details)</a></td></tr>
188		- @ <tr><th>Schema Version:</th><td>%h(g.zAuxSchema)</td></tr>
	188	+ if( g.eHashPolicy!=HPOLICY_AUTO ){
	189	+ @ <tr><th>Schema Version:</th><td>%h(g.zAuxSchema),
	190	+ @ %s(hpolicy_name())</td></tr>
	191	+ }else{
	192	+ @ <tr><th>Schema Version:</th><td>%h(g.zAuxSchema)</td></tr>
	193	+ }
189	194	@ <tr><th>Repository Rebuilt:</th><td>
190	195	@ %h(db_get_mtime("rebuilt","%Y-%m-%d %H:%M:%S","Never"))
191	196	@ By Fossil %h(db_get("rebuilt","Unknown"))</td></tr>
192	197	@ <tr><th>Database Stats:</th><td>
193	198	@ %d(db_int(0, "PRAGMA repository.page_count")) pages,
194	199
195	200	ADDED www/hashpolicy.wiki

	--- src/stat.c
	+++ src/stat.c
	@@ -183,11 +183,16 @@
183	@ (%h(RELEASE_VERSION)) <a href='version?verbose=1'>(details)</a>
184	@ </td></tr>
185	@ <tr><th>SQLite Version:</th><td>%.19s(sqlite3_sourceid())
186	@ [%.10s(&sqlite3_sourceid()[20])] (%s(sqlite3_libversion()))
187	@ <a href='version?verbose=2'>(details)</a></td></tr>
188	@ <tr><th>Schema Version:</th><td>%h(g.zAuxSchema)</td></tr>





189	@ <tr><th>Repository Rebuilt:</th><td>
190	@ %h(db_get_mtime("rebuilt","%Y-%m-%d %H:%M:%S","Never"))
191	@ By Fossil %h(db_get("rebuilt","Unknown"))</td></tr>
192	@ <tr><th>Database Stats:</th><td>
193	@ %d(db_int(0, "PRAGMA repository.page_count")) pages,
194
195	DDED www/hashpolicy.wiki

	--- src/stat.c
	+++ src/stat.c
	@@ -183,11 +183,16 @@
183	@ (%h(RELEASE_VERSION)) <a href='version?verbose=1'>(details)</a>
184	@ </td></tr>
185	@ <tr><th>SQLite Version:</th><td>%.19s(sqlite3_sourceid())
186	@ [%.10s(&sqlite3_sourceid()[20])] (%s(sqlite3_libversion()))
187	@ <a href='version?verbose=2'>(details)</a></td></tr>
188	if( g.eHashPolicy!=HPOLICY_AUTO ){
189	@ <tr><th>Schema Version:</th><td>%h(g.zAuxSchema),
190	@ %s(hpolicy_name())</td></tr>
191	}else{
192	@ <tr><th>Schema Version:</th><td>%h(g.zAuxSchema)</td></tr>
193	}
194	@ <tr><th>Repository Rebuilt:</th><td>
195	@ %h(db_get_mtime("rebuilt","%Y-%m-%d %H:%M:%S","Never"))
196	@ By Fossil %h(db_get("rebuilt","Unknown"))</td></tr>
197	@ <tr><th>Database Stats:</th><td>
198	@ %d(db_int(0, "PRAGMA repository.page_count")) pages,
199
200	DDED www/hashpolicy.wiki

M www/hashpolicy.wiki

+20

		--- a/www/hashpolicy.wiki
		+++ b/www/hashpolicy.wiki
		@@ -0,0 +1,20 @@
	1	+<title>Hash Policy</title>
	2	+
	3	+<h2> Executive Summary, Orcutive Summary</h2>
	4	+
	5	+<b>Or: How To </h2>
	6	+
	7	+There i This Article</b>
	8	+
	9	+Thham now
	10	+upgraded to
	11	+change texpected to be
	12	+replaced ot expected to be
	13	+replaced until Ma
	14	+out o
	15	+Debian 9 is implement0 or later
	16	+
	17	+work and
	18	+Hash Policy</title>
	19	+
	20	+<h2>< Introduction ha", not generic SHA1sequel panded the to allow artifacts to

	--- a/www/hashpolicy.wiki
	+++ b/www/hashpolicy.wiki
	@@ -0,0 +1,20 @@

	--- a/www/hashpolicy.wiki
	+++ b/www/hashpolicy.wiki
	@@ -0,0 +1,20 @@
1	<title>Hash Policy</title>
2
3	<h2> Executive Summary, Orcutive Summary</h2>
4
5	<b>Or: How To </h2>
6
7	There i This Article</b>
8
9	Thham now
10	upgraded to
11	change texpected to be
12	replaced ot expected to be
13	replaced until Ma
14	out o
15	Debian 9 is implement0 or later
16
17	work and
18	Hash Policy</title>
19
20	<h2>< Introduction ha", not generic SHA1sequel panded the to allow artifacts to

M www/mkindex.tcl

		--- www/mkindex.tcl
		+++ www/mkindex.tcl
		@@ -36,10 +36,11 @@
36	36	fiveminutes.wiki {Update and Running in 5 Minutes as a Single User}
37	37	foss-cklist.wiki {Checklist For Successful Open-Source Projects}
38	38	fossil-from-msvc.wiki {Integrating Fossil in the Microsoft Express 2010 IDE}
39	39	fossil-v-git.wiki {Fossil Versus Git}
40	40	hacker-howto.wiki {Hacker How-To}
	41	+ hashpolicy.wiki {Hash Policy: Choosing Between SHA1 and SHA3-256}
41	42	/help {Lists of Commands and Webpages}
42	43	hints.wiki {Fossil Tips And Usage Hints}
43	44	index.wiki {Home Page}
44	45	inout.wiki {Import And Export To And From Git}
45	46	makefile.wiki {The Fossil Build Process}
46	47

	--- www/mkindex.tcl
	+++ www/mkindex.tcl
	@@ -36,10 +36,11 @@
36	fiveminutes.wiki {Update and Running in 5 Minutes as a Single User}
37	foss-cklist.wiki {Checklist For Successful Open-Source Projects}
38	fossil-from-msvc.wiki {Integrating Fossil in the Microsoft Express 2010 IDE}
39	fossil-v-git.wiki {Fossil Versus Git}
40	hacker-howto.wiki {Hacker How-To}

41	/help {Lists of Commands and Webpages}
42	hints.wiki {Fossil Tips And Usage Hints}
43	index.wiki {Home Page}
44	inout.wiki {Import And Export To And From Git}
45	makefile.wiki {The Fossil Build Process}
46

	--- www/mkindex.tcl
	+++ www/mkindex.tcl
	@@ -36,10 +36,11 @@
36	fiveminutes.wiki {Update and Running in 5 Minutes as a Single User}
37	foss-cklist.wiki {Checklist For Successful Open-Source Projects}
38	fossil-from-msvc.wiki {Integrating Fossil in the Microsoft Express 2010 IDE}
39	fossil-v-git.wiki {Fossil Versus Git}
40	hacker-howto.wiki {Hacker How-To}
41	hashpolicy.wiki {Hash Policy: Choosing Between SHA1 and SHA3-256}
42	/help {Lists of Commands and Webpages}
43	hints.wiki {Fossil Tips And Usage Hints}
44	index.wiki {Home Page}
45	inout.wiki {Import And Export To And From Git}
46	makefile.wiki {The Fossil Build Process}
47

M www/permutedindex.html

		--- www/permutedindex.html
		+++ www/permutedindex.html
		@@ -29,10 +29,11 @@
29	29	<li><a href="blame.wiki">Annotate/Blame Algorithm Of Fossil — The</a></li>
30	30	<li><a href="customskin.md">Appearance of Web Pages — Theming: Customizing The</a></li>
31	31	<li><a href="faq.wiki">Asked Questions — Frequently</a></li>
32	32	<li><a href="password.wiki">Authentication — Password Management And</a></li>
33	33	<li><a href="whyusefossil.wiki"><b>Benefits Of Version Control</b></a></li>
	34	+<li><a href="hashpolicy.wiki">Between SHA1 and SHA3-256 — Hash Policy: Choosing</a></li>
34	35	<li><a href="antibot.wiki">Bots — Defense against Spiders and</a></li>
35	36	<li><a href="private.wiki">Branches — Creating, Syncing, and Deleting Private</a></li>
36	37	<li><a href="branching.wiki"><b>Branching, Forking, Merging, and Tagging</b></a></li>
37	38	<li><a href="bugtheory.wiki"><b>Bug Tracking In Fossil</b></a></li>
38	39	<li><a href="makefile.wiki">Build Process — The Fossil</a></li>
		@@ -43,10 +44,11 @@
43	44	<li><a href="checkin.wiki">Checklist — Check-in</a></li>
44	45	<li><a href="../test/release-checklist.wiki">Checklist — Pre-Release Testing</a></li>
45	46	<li><a href="foss-cklist.wiki"><b>Checklist For Successful Open-Source Projects</b></a></li>
46	47	<li><a href="selfcheck.wiki">Checks — Fossil Repository Integrity Self</a></li>
47	48	<li><a href="childprojects.wiki"><b>Child Projects</b></a></li>
	49	+<li><a href="hashpolicy.wiki">Choosing Between SHA1 and SHA3-256 — Hash Policy:</a></li>
48	50	<li><a href="contribute.wiki">Code or Documentation To The Fossil Project — Contributing</a></li>
49	51	<li><a href="style.wiki">Code Style Guidelines — Source</a></li>
50	52	<li><a href="../../../help">Commands and Webpages — Lists of</a></li>
51	53	<li><a href="build.wiki"><b>Compiling and Installing Fossil</b></a></li>
52	54	<li><a href="concepts.wiki">Concepts — Fossil Core</a></li>
		@@ -111,10 +113,11 @@
111	113	<li><a href="customgraph.md">Graph — Theming: Customizing the Timeline</a></li>
112	114	<li><a href="quickstart.wiki">Guide — Fossil Quick Start</a></li>
113	115	<li><a href="style.wiki">Guidelines — Source Code Style</a></li>
114	116	<li><a href="hacker-howto.wiki"><b>Hacker How-To</b></a></li>
115	117	<li><a href="adding_code.wiki"><b>Hacking Fossil</b></a></li>
	118	+<li><a href="hashpolicy.wiki"><b>Hash Policy: Choosing Between SHA1 and SHA3-256</b></a></li>
116	119	<li><a href="hints.wiki">Hints — Fossil Tips And Usage</a></li>
117	120	<li><a href="index.wiki"><b>Home Page</b></a></li>
118	121	<li><a href="selfhost.wiki">Hosting Repositories — Fossil Self</a></li>
119	122	<li><a href="aboutcgi.wiki"><b>How CGI Works In Fossil</b></a></li>
120	123	<li><a href="server.wiki"><b>How To Configure A Fossil Server</b></a></li>
		@@ -147,10 +150,11 @@
147	150	<li><a href="index.wiki">Page — Home</a></li>
148	151	<li><a href="customskin.md">Pages — Theming: Customizing The Appearance of Web</a></li>
149	152	<li><a href="password.wiki"><b>Password Management And Authentication</b></a></li>
150	153	<li><a href="quotes.wiki">People Are Saying About Fossil, Git, and DVCSes in General — Quotes: What</a></li>
151	154	<li><a href="stats.wiki"><b>Performance Statistics</b></a></li>
	155	+<li><a href="hashpolicy.wiki">Policy: Choosing Between SHA1 and SHA3-256 — Hash</a></li>
152	156	<li><a href="../test/release-checklist.wiki"><b>Pre-Release Testing Checklist</b></a></li>
153	157	<li><a href="pop.wiki"><b>Principles Of Operation</b></a></li>
154	158	<li><a href="private.wiki">Private Branches — Creating, Syncing, and Deleting</a></li>
155	159	<li><a href="makefile.wiki">Process — The Fossil Build</a></li>
156	160	<li><a href="contribute.wiki">Project — Contributing Code or Documentation To The Fossil</a></li>
		@@ -174,10 +178,12 @@
174	178	<li><a href="th1.md">Scripting Language — The TH1</a></li>
175	179	<li><a href="selfcheck.wiki">Self Checks — Fossil Repository Integrity</a></li>
176	180	<li><a href="selfhost.wiki">Self Hosting Repositories — Fossil</a></li>
177	181	<li><a href="server.wiki">Server — How To Configure A Fossil</a></li>
178	182	<li><a href="settings.wiki">Settings — Fossil</a></li>
	183	+<li><a href="hashpolicy.wiki">SHA1 and SHA3-256 — Hash Policy: Choosing Between</a></li>
	184	+<li><a href="hashpolicy.wiki">SHA3-256 — Hash Policy: Choosing Between SHA1 and</a></li>
179	185	<li><a href="shunning.wiki"><b>Shunning: Deleting Content From Fossil</b></a></li>
180	186	<li><a href="fiveminutes.wiki">Single User — Update and Running in 5 Minutes as a</a></li>
181	187	<li><a href="../../../sitemap"><b>Site Map</b></a></li>
182	188	<li><a href="style.wiki"><b>Source Code Style Guidelines</b></a></li>
183	189	<li><a href="antibot.wiki">Spiders and Bots — Defense against</a></li>
184	190

	--- www/permutedindex.html
	+++ www/permutedindex.html
	@@ -29,10 +29,11 @@
29	<li><a href="blame.wiki">Annotate/Blame Algorithm Of Fossil — The</a></li>
30	<li><a href="customskin.md">Appearance of Web Pages — Theming: Customizing The</a></li>
31	<li><a href="faq.wiki">Asked Questions — Frequently</a></li>
32	<li><a href="password.wiki">Authentication — Password Management And</a></li>
33	<li><a href="whyusefossil.wiki"><b>Benefits Of Version Control</b></a></li>

34	<li><a href="antibot.wiki">Bots — Defense against Spiders and</a></li>
35	<li><a href="private.wiki">Branches — Creating, Syncing, and Deleting Private</a></li>
36	<li><a href="branching.wiki"><b>Branching, Forking, Merging, and Tagging</b></a></li>
37	<li><a href="bugtheory.wiki"><b>Bug Tracking In Fossil</b></a></li>
38	<li><a href="makefile.wiki">Build Process — The Fossil</a></li>
	@@ -43,10 +44,11 @@
43	<li><a href="checkin.wiki">Checklist — Check-in</a></li>
44	<li><a href="../test/release-checklist.wiki">Checklist — Pre-Release Testing</a></li>
45	<li><a href="foss-cklist.wiki"><b>Checklist For Successful Open-Source Projects</b></a></li>
46	<li><a href="selfcheck.wiki">Checks — Fossil Repository Integrity Self</a></li>
47	<li><a href="childprojects.wiki"><b>Child Projects</b></a></li>

48	<li><a href="contribute.wiki">Code or Documentation To The Fossil Project — Contributing</a></li>
49	<li><a href="style.wiki">Code Style Guidelines — Source</a></li>
50	<li><a href="../../../help">Commands and Webpages — Lists of</a></li>
51	<li><a href="build.wiki"><b>Compiling and Installing Fossil</b></a></li>
52	<li><a href="concepts.wiki">Concepts — Fossil Core</a></li>
	@@ -111,10 +113,11 @@
111	<li><a href="customgraph.md">Graph — Theming: Customizing the Timeline</a></li>
112	<li><a href="quickstart.wiki">Guide — Fossil Quick Start</a></li>
113	<li><a href="style.wiki">Guidelines — Source Code Style</a></li>
114	<li><a href="hacker-howto.wiki"><b>Hacker How-To</b></a></li>
115	<li><a href="adding_code.wiki"><b>Hacking Fossil</b></a></li>

116	<li><a href="hints.wiki">Hints — Fossil Tips And Usage</a></li>
117	<li><a href="index.wiki"><b>Home Page</b></a></li>
118	<li><a href="selfhost.wiki">Hosting Repositories — Fossil Self</a></li>
119	<li><a href="aboutcgi.wiki"><b>How CGI Works In Fossil</b></a></li>
120	<li><a href="server.wiki"><b>How To Configure A Fossil Server</b></a></li>
	@@ -147,10 +150,11 @@
147	<li><a href="index.wiki">Page — Home</a></li>
148	<li><a href="customskin.md">Pages — Theming: Customizing The Appearance of Web</a></li>
149	<li><a href="password.wiki"><b>Password Management And Authentication</b></a></li>
150	<li><a href="quotes.wiki">People Are Saying About Fossil, Git, and DVCSes in General — Quotes: What</a></li>
151	<li><a href="stats.wiki"><b>Performance Statistics</b></a></li>

152	<li><a href="../test/release-checklist.wiki"><b>Pre-Release Testing Checklist</b></a></li>
153	<li><a href="pop.wiki"><b>Principles Of Operation</b></a></li>
154	<li><a href="private.wiki">Private Branches — Creating, Syncing, and Deleting</a></li>
155	<li><a href="makefile.wiki">Process — The Fossil Build</a></li>
156	<li><a href="contribute.wiki">Project — Contributing Code or Documentation To The Fossil</a></li>
	@@ -174,10 +178,12 @@
174	<li><a href="th1.md">Scripting Language — The TH1</a></li>
175	<li><a href="selfcheck.wiki">Self Checks — Fossil Repository Integrity</a></li>
176	<li><a href="selfhost.wiki">Self Hosting Repositories — Fossil</a></li>
177	<li><a href="server.wiki">Server — How To Configure A Fossil</a></li>
178	<li><a href="settings.wiki">Settings — Fossil</a></li>


179	<li><a href="shunning.wiki"><b>Shunning: Deleting Content From Fossil</b></a></li>
180	<li><a href="fiveminutes.wiki">Single User — Update and Running in 5 Minutes as a</a></li>
181	<li><a href="../../../sitemap"><b>Site Map</b></a></li>
182	<li><a href="style.wiki"><b>Source Code Style Guidelines</b></a></li>
183	<li><a href="antibot.wiki">Spiders and Bots — Defense against</a></li>
184

	--- www/permutedindex.html
	+++ www/permutedindex.html
	@@ -29,10 +29,11 @@
29	<li><a href="blame.wiki">Annotate/Blame Algorithm Of Fossil — The</a></li>
30	<li><a href="customskin.md">Appearance of Web Pages — Theming: Customizing The</a></li>
31	<li><a href="faq.wiki">Asked Questions — Frequently</a></li>
32	<li><a href="password.wiki">Authentication — Password Management And</a></li>
33	<li><a href="whyusefossil.wiki"><b>Benefits Of Version Control</b></a></li>
34	<li><a href="hashpolicy.wiki">Between SHA1 and SHA3-256 — Hash Policy: Choosing</a></li>
35	<li><a href="antibot.wiki">Bots — Defense against Spiders and</a></li>
36	<li><a href="private.wiki">Branches — Creating, Syncing, and Deleting Private</a></li>
37	<li><a href="branching.wiki"><b>Branching, Forking, Merging, and Tagging</b></a></li>
38	<li><a href="bugtheory.wiki"><b>Bug Tracking In Fossil</b></a></li>
39	<li><a href="makefile.wiki">Build Process — The Fossil</a></li>
	@@ -43,10 +44,11 @@
44	<li><a href="checkin.wiki">Checklist — Check-in</a></li>
45	<li><a href="../test/release-checklist.wiki">Checklist — Pre-Release Testing</a></li>
46	<li><a href="foss-cklist.wiki"><b>Checklist For Successful Open-Source Projects</b></a></li>
47	<li><a href="selfcheck.wiki">Checks — Fossil Repository Integrity Self</a></li>
48	<li><a href="childprojects.wiki"><b>Child Projects</b></a></li>
49	<li><a href="hashpolicy.wiki">Choosing Between SHA1 and SHA3-256 — Hash Policy:</a></li>
50	<li><a href="contribute.wiki">Code or Documentation To The Fossil Project — Contributing</a></li>
51	<li><a href="style.wiki">Code Style Guidelines — Source</a></li>
52	<li><a href="../../../help">Commands and Webpages — Lists of</a></li>
53	<li><a href="build.wiki"><b>Compiling and Installing Fossil</b></a></li>
54	<li><a href="concepts.wiki">Concepts — Fossil Core</a></li>
	@@ -111,10 +113,11 @@
113	<li><a href="customgraph.md">Graph — Theming: Customizing the Timeline</a></li>
114	<li><a href="quickstart.wiki">Guide — Fossil Quick Start</a></li>
115	<li><a href="style.wiki">Guidelines — Source Code Style</a></li>
116	<li><a href="hacker-howto.wiki"><b>Hacker How-To</b></a></li>
117	<li><a href="adding_code.wiki"><b>Hacking Fossil</b></a></li>
118	<li><a href="hashpolicy.wiki"><b>Hash Policy: Choosing Between SHA1 and SHA3-256</b></a></li>
119	<li><a href="hints.wiki">Hints — Fossil Tips And Usage</a></li>
120	<li><a href="index.wiki"><b>Home Page</b></a></li>
121	<li><a href="selfhost.wiki">Hosting Repositories — Fossil Self</a></li>
122	<li><a href="aboutcgi.wiki"><b>How CGI Works In Fossil</b></a></li>
123	<li><a href="server.wiki"><b>How To Configure A Fossil Server</b></a></li>
	@@ -147,10 +150,11 @@
150	<li><a href="index.wiki">Page — Home</a></li>
151	<li><a href="customskin.md">Pages — Theming: Customizing The Appearance of Web</a></li>
152	<li><a href="password.wiki"><b>Password Management And Authentication</b></a></li>
153	<li><a href="quotes.wiki">People Are Saying About Fossil, Git, and DVCSes in General — Quotes: What</a></li>
154	<li><a href="stats.wiki"><b>Performance Statistics</b></a></li>
155	<li><a href="hashpolicy.wiki">Policy: Choosing Between SHA1 and SHA3-256 — Hash</a></li>
156	<li><a href="../test/release-checklist.wiki"><b>Pre-Release Testing Checklist</b></a></li>
157	<li><a href="pop.wiki"><b>Principles Of Operation</b></a></li>
158	<li><a href="private.wiki">Private Branches — Creating, Syncing, and Deleting</a></li>
159	<li><a href="makefile.wiki">Process — The Fossil Build</a></li>
160	<li><a href="contribute.wiki">Project — Contributing Code or Documentation To The Fossil</a></li>
	@@ -174,10 +178,12 @@
178	<li><a href="th1.md">Scripting Language — The TH1</a></li>
179	<li><a href="selfcheck.wiki">Self Checks — Fossil Repository Integrity</a></li>
180	<li><a href="selfhost.wiki">Self Hosting Repositories — Fossil</a></li>
181	<li><a href="server.wiki">Server — How To Configure A Fossil</a></li>
182	<li><a href="settings.wiki">Settings — Fossil</a></li>
183	<li><a href="hashpolicy.wiki">SHA1 and SHA3-256 — Hash Policy: Choosing Between</a></li>
184	<li><a href="hashpolicy.wiki">SHA3-256 — Hash Policy: Choosing Between SHA1 and</a></li>
185	<li><a href="shunning.wiki"><b>Shunning: Deleting Content From Fossil</b></a></li>
186	<li><a href="fiveminutes.wiki">Single User — Update and Running in 5 Minutes as a</a></li>
187	<li><a href="../../../sitemap"><b>Site Map</b></a></li>
188	<li><a href="style.wiki"><b>Source Code Style Guidelines</b></a></li>
189	<li><a href="antibot.wiki">Spiders and Bots — Defense against</a></li>
190

Fossil SCM

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