The help command currently hard codes the list of guides and their
summary in C. Let's move this list to command-list.txt. This lets us
extract summary lines from Documentation/git*.txt. This also
potentially lets us lists guides in git.txt, but I'll leave that for
now.

Signed-off-by: Nguyễn Thái Ngọc Duy <pclo...@gmail.com>
---
 Documentation/gitattributes.txt |  2 +-
 Documentation/gitmodules.txt    |  2 +-
 Documentation/gitrevisions.txt  |  2 +-
 Makefile                        |  2 +-
 builtin/help.c                  | 32 --------------------------------
 command-list.txt                |  8 ++++++++
 help.c                          | 14 +++++++++++++-
 help.h                          |  1 +
 8 files changed, 26 insertions(+), 37 deletions(-)

diff --git a/Documentation/gitattributes.txt b/Documentation/gitattributes.txt
index 1094fe2b5b..083c2f380d 100644
--- a/Documentation/gitattributes.txt
+++ b/Documentation/gitattributes.txt
@@ -3,7 +3,7 @@ gitattributes(5)
 
 NAME
 ----
-gitattributes - defining attributes per path
+gitattributes - Defining attributes per path
 
 SYNOPSIS
 --------
diff --git a/Documentation/gitmodules.txt b/Documentation/gitmodules.txt
index db5d47eb19..4d63def206 100644
--- a/Documentation/gitmodules.txt
+++ b/Documentation/gitmodules.txt
@@ -3,7 +3,7 @@ gitmodules(5)
 
 NAME
 ----
-gitmodules - defining submodule properties
+gitmodules - Defining submodule properties
 
 SYNOPSIS
 --------
diff --git a/Documentation/gitrevisions.txt b/Documentation/gitrevisions.txt
index 27dec5b91d..1f6cceaefb 100644
--- a/Documentation/gitrevisions.txt
+++ b/Documentation/gitrevisions.txt
@@ -3,7 +3,7 @@ gitrevisions(7)
 
 NAME
 ----
-gitrevisions - specifying revisions and ranges for Git
+gitrevisions - Specifying revisions and ranges for Git
 
 SYNOPSIS
 --------
diff --git a/Makefile b/Makefile
index a60a78ee67..1efb751e46 100644
--- a/Makefile
+++ b/Makefile
@@ -1937,7 +1937,7 @@ $(BUILT_INS): git$X
 
 command-list.h: generate-cmdlist.sh command-list.txt
 
-command-list.h: $(wildcard Documentation/git-*.txt)
+command-list.h: $(wildcard Documentation/git*.txt)
        $(QUIET_GEN)$(SHELL_PATH) ./generate-cmdlist.sh command-list.txt >$@+ 
&& mv $@+ $@
 
 SCRIPT_DEFINES = $(SHELL_PATH_SQ):$(DIFF_SQ):$(GIT_VERSION):\
diff --git a/builtin/help.c b/builtin/help.c
index 0e0af8426a..5727fb5e51 100644
--- a/builtin/help.c
+++ b/builtin/help.c
@@ -402,38 +402,6 @@ static void show_html_page(const char *git_cmd)
        open_html(page_path.buf);
 }
 
-static struct {
-       const char *name;
-       const char *help;
-} common_guides[] = {
-       { "attributes", N_("Defining attributes per path") },
-       { "everyday", N_("Everyday Git With 20 Commands Or So") },
-       { "glossary", N_("A Git glossary") },
-       { "ignore", N_("Specifies intentionally untracked files to ignore") },
-       { "modules", N_("Defining submodule properties") },
-       { "revisions", N_("Specifying revisions and ranges for Git") },
-       { "tutorial", N_("A tutorial introduction to Git (for version 1.5.1 or 
newer)") },
-       { "workflows", N_("An overview of recommended workflows with Git") },
-};
-
-static void list_common_guides_help(void)
-{
-       int i, longest = 0;
-
-       for (i = 0; i < ARRAY_SIZE(common_guides); i++) {
-               if (longest < strlen(common_guides[i].name))
-                       longest = strlen(common_guides[i].name);
-       }
-
-       puts(_("The common Git guides are:\n"));
-       for (i = 0; i < ARRAY_SIZE(common_guides); i++) {
-               printf("   %s   ", common_guides[i].name);
-               mput_char(' ', longest - strlen(common_guides[i].name));
-               puts(_(common_guides[i].help));
-       }
-       putchar('\n');
-}
-
 static const char *check_git_cmd(const char* cmd)
 {
        char *alias;
diff --git a/command-list.txt b/command-list.txt
index 3bd23201a6..a57bcb64a1 100644
--- a/command-list.txt
+++ b/command-list.txt
@@ -139,3 +139,11 @@ gitweb                                  
ancillaryinterrogators
 git-whatchanged                         ancillaryinterrogators
 git-worktree                            mainporcelain
 git-write-tree                          plumbingmanipulators
+gitattributes                           guide
+giteveryday                             guide
+gitglossary                             guide
+gitignore                               guide
+gitmodules                              guide
+gitrevisions                            guide
+gittutorial                             guide
+gitworkflows                            guide
diff --git a/help.c b/help.c
index 1f27d94661..d5a2aff4cb 100644
--- a/help.c
+++ b/help.c
@@ -55,7 +55,9 @@ static void extract_cmds(struct cmdname_help **p_cmds, 
uint32_t mask)
 
                cmds[nr] = *cmd;
 
-               if (skip_prefix(cmd->name, "git-", &name))
+               if (skip_prefix(cmd->name, "git-", &name) ||
+                   (mask == CAT_guide &&
+                    skip_prefix(cmd->name, "git", &name)))
                        cmds[nr].name = name;
 
                nr++;
@@ -335,6 +337,16 @@ void list_cmds_by_category(const char *cat)
                        puts(command_list[i].name);
 }
 
+void list_common_guides_help(void)
+{
+       struct category_description catdesc[] = {
+               { CAT_guide, N_("The common Git guides are:") },
+               { 0, NULL }
+       };
+       print_cmd_by_category(catdesc);
+       putchar('\n');
+}
+
 void list_all_cmds_help(void)
 {
        print_cmd_by_category(main_categories);
diff --git a/help.h b/help.h
index 118b7d9947..71b1542896 100644
--- a/help.h
+++ b/help.h
@@ -18,6 +18,7 @@ static inline void mput_char(char c, unsigned int num)
 
 extern void list_common_cmds_help(void);
 extern void list_all_cmds_help(void);
+extern void list_common_guides_help(void);
 extern void list_all_cmds(void);
 extern void list_cmds_by_category(const char *category);
 extern const char *help_unknown_cmd(const char *cmd);
-- 
2.17.0.519.gb89679a4aa

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