add Fossil dep type

Author: javierguerragiraldez

src/common.zig

@@ -194,6 +194,20 @@ pub fn get_modpath(cachepath: []const u8, d: u.Dep, options: *CollectOptions) ![
             try std.fs.deleteFileAbsolute(file_path);
             return p;
         },
+        .fossil => {
+            const dpath = if (d.version.len > 0) pv else p;
+            if (!try u.does_folder_exist(dpath)) {
+                try d.type.pull(d.path, dpath);
+            } else {
+                if (options.update) {
+                    try d.type.update(dpath, d.path);
+                }
+            }
+            if (d.version.len > 0) {
+                u.assert((try u.run_cmd(dpath, &.{ "fossil", "checkout", d.version })) == 0, "can't fossil checkout version {s}", .{ d.version });
+            }
+            return dpath;
+        },
     }
 }
 

src/util/dep_type.zig

@@ -14,7 +14,7 @@ pub const DepType = enum {
     hg,         // https://www.mercurial-scm.org/
     http,       // https://en.wikipedia.org/wiki/Hypertext_Transfer_Protocol
     // svn,        // https://subversion.apache.org/
-    // fossil,     // https://fossil-scm.org/
+    fossil,     // https://fossil-scm.org/
     // cvs,        // https://nongnu.org/cvs/
     // darcs,      // http://darcs.net/
     // //
@@ -53,6 +53,10 @@ pub const DepType = enum {
                     u.assert((try u.run_cmd(dpath, &.{ "tar", "-xf", f, "-C", "." })) == 0, "un-tar {s} failed", .{f});
                 }
             },
+            .fossil => {
+                try std.fs.cwd().makePath(dpath);
+                u.assert((try u.run_cmd(dpath, &.{ "fossil", "open", rpath})) == 0, "fossil open {s} failed", .{rpath});
+            }
         }
     }
 
@@ -73,6 +77,10 @@ pub const DepType = enum {
             .http => {
                 //
             },
+            .fossil => {
+                u.assert((try u.run_cmd(dpath, &.{ "fossil", "pull" })) == 0, "fossil pull failed", .{});
+                u.assert((try u.run_cmd(dpath, &.{ "fossil", "update" })) == 0, "fossil update failed", .{});
+            },
         }
     }
 
@@ -86,6 +94,7 @@ pub const DepType = enum {
             .git => try std.fmt.allocPrint(gpa, "commit-{s}", .{(try u.git_rev_HEAD(gpa, mdir))}),
             .hg => "",
             .http => "",
+            .fossil => getFossilCheckout(mpath),
         };
     }
 };
@@ -103,3 +112,21 @@ pub const GitVersionType = enum {
         };
     }
 };
+
+
+fn getFossilCheckout(mpath: []const u8) ![]const u8 {
+    const result = try u.run_cmd_raw(mpath, &.{"fossil", "status"});
+    gpa.free(result.stderr);
+    defer gpa.free(result.stdout);
+
+    var iter = std.mem.tokenize(u8, result.stdout, " \n");
+    while (iter.next()) |tk| {
+        if (std.mem.eql(u8, tk, "checkout:")) {
+            const co = iter.next() orelse return "";
+            return try gpa.dupe(u8, co);
+        }
+    }
+
+    return "";
+}
+